Circular 08/2015/tt-Btnmt: Pump Technical Regulations Laboratory Investigations, Reviews Of Underground Water Resources

Original Language Title: Thông tư 08/2015/TT-BTNMT: Quy định kỹ thuật bơm nước thí nghiệm trong điều tra, đánh giá tài nguyên nước dưới đất

Subscribe to a Global-Regulation Premium Membership Today!

Key Benefits:

Subscribe Now for only USD$20 per month, or Get a Day Pass for only USD$4.99.
DEPARTMENT OF RESOURCES AND ENVIRONMENT
Numbers: 08 /2015/TT-BTNMT
THE SOCIALIST REPUBLIC OF VIETNAM.
Independence-Freedom-Happiness
Hanoi, February 26, 2015

IT ' S SMART

The regulation of water injection techniques in the investigation, assessment of water resources in the soil

________________________

National Resources Law Base 17 /2012/QH13 June 21, 2012;

Base of Protocol 21 /2013/NĐ-CP March 4, 2013 of the Government regulates the function, mandate, jurisdiction and organizational structure of the Ministry of Natural Resources and Environment;

At the suggestion of the Secretary of the Department of Water Management, the Director General of the National Water Planning and Investigation Center, the Chief of Science and Technology Affairs and the Chief Legal Affairs Department;

The Minister of Natural Resources and the Environment of the Ministry of Natural Resources regulates water injection techniques in the investigation, evaluating water resources in the soil.

Chapter I

GENERAL REGULATION

What? 1. The tuning range and subject apply

1. This information regulates the details of the content, the technical requirements and products of the water-pumping water pump, the peach pit, the dug well in the investigation, the assessment of the water resources in the soil.

2. This information applies to the state governing bodies of water resources; organizations and individuals are established, implementing projects, projects, investigations missions, assessment of water resources under the soil; organizations, individuals who carry out the work of the country. The water pump, the project, the project, the investigation, the water resource evaluation.

What? 2. The Principles and Mission of the Laboratory pump

1. The laboratory pump in the investigation, evaluation of water resources under the soil must comply with technical design in the project, project, investigation mission, evaluation of the granted water resource.

2. The experimental water pump must meet one or several of the following specialized tasks:

a) Determination of the water-rich level of the water container;

b) Identibility of hydrocated geologic parameters of water storage (permeability coefficient, water-based coefficient, transmission coefficient, water transmission, water release coefficient, permeability, radius of conducant influence, total drag of river debilation); the transfer parameters of the water. the waters of the earth;

c) Study the boundary conditions of the water storage on the vessel ' s vessel and surface (water relations and surface water, the interaction between the adjacent water stratlayers);

d) Identilocate the relationship between the flow and the lower level of water levels; determine the hydraulic drag in the near-hole zone; the water level jump; the performance of the water extraction work under the soil.

What? 3. Explain words

In this Information, the words below are understood as follows:

1. -Blow-hole pumps. is the cleaning of the drill hole with the centrifugation pump, paused or squeking to ensure the normal circulation of water from the water-filled floor into the drill hole before pumping the experimental water.

2. Water test pump. is the water pump that controls drilling holes, wells, pits to study the characteristic properties of the water-containing environment, the physical properties, the chemistry of water resources, the performance of the water extraction work on the soil.

3. Test test water is pumping experimental water with a short period of time (1-3 cases) to assess the level of water-rich, preliminary preliminary determination of the water level as well as ground water quality features at work not conducting detailed experiments or to test the event. appropriate design of the design with the actual natural conditions of the water storage and the experimental structure structure to ensure the formal laboratory pump is required for formal testing of the design parameters such as the flooded coefficient (case of injection of gas compression in the pump method). It ' s made of a mixture of water or water, and it puts it in the depth of the pump (the case of other pumps), the pump flow.

4. Single Test Water It ' s an experimental water pump when there ' s only one water pump and there ' s no observable.

5. Cluster of cluster experiments It ' s an experimental water pump with a water pump and there ' s an observation.

6. Group Laboratory pump It ' s an experimental water pump that comes from two water-pumping technologies that become active.

7 It's a low-level test. is the pump water pump only conducted a pump with a lower water level lower at the water pump. .

8. It ' s a lot of low-level experiments. It is an experimental water pump that is conducted in multiple waves with the value of the flow or the water level pump each different from each other, in the middle of the resting waves so that the water level is fully recovered until it is stable.

9. It's a seizure pump. is the continuous experimental water pump, the flow of changes increased by the levels during the experiment, between the levels with or without the rest of the rest to recover the water level.

10. Water pump It ' s a drill hole, a well, a hole that ' s dug up equipment to pump water and sample it during the course of the experiment.

11. Observable is the drill hole, well, the peach pit that is used to measure water levels, water temperature, water sampling, load the indicator in the process of pumping out the laboratory.

12. Central drill hole It ' s a drilling hole in the cluster experiment.

13. Water level depth before pumping It ' s the depth measured from the surface of the soil to the surface of the water in the building before the experimental water pump.

14. Water level depth when pumping () Pump water. ) is the measured depth from the surface of the soil to the surface of the water in the water pump or the observable process as it is in the process of pumping out the experimental water.

15. Low water levels is the difference value between the water level at any given time during the process of pumping water measured at work compared to the static water level.

16. Recovery Level is the differential value of the measured water level in the work at any given time during recovery due to the cessation of water from its water level at the time of the start to stop pumping water.

17. Plumbing. is the pipeline through which, the water moves out of the water pump process to get to the ground due to the impact of the water pump.

18. Gas pipe. is the pipeline through which gas (vapor) is brought down to the flooded part of the building to create a mixture of gas-water when pumping water with a gas compressuriter.

19. Waterline It ' s a pipeline through which the measuring line and the measure are dropped into the water pump to measure the water level.

20. Indicator is a non-hazardous, insoluble substance in water, which has a physical feature, a chemical that is easy to distinguish from the source of water, which is loaded into the observation work in laboratory water pumping that has the indicator of the indicator.

21. Karst. is a combination of soluble rock soils, including limestone, dolomite, macneurons, salt rocks and other soils that have the same properties, which are affected by the processes and geologic phenomena that appear on the surface or in the ground, mainly due to the solubilization of the soil. Hollow caverts, which destroyed and transformed the structure, the soil state, the motor mechanism and the underground water storage, the terrain, the hydrology network.

Chapter II

CONTENT AND REQUIRES EXPERIMENTAL WATER PUMP

What? 4. Water pump design

1. Design Content

a) The identification of the parameters to be collected through the experimental water pump;

b) The selection, experimental diagram, the number of experimental works;

c) The timing and duration of the experiment, the volume of work, the engineering method, and the editing of the document;

d) The selection of the device, the appropriate experimental instrument.

2. Request for Design

a) Define the parameters of the water container that need to be achieved through the objective of the target base, the mission to resolve the project;

b) The experimental forms must be consistent with the objective, the mission of the project, the hydrological geological features of the water storage, boundary conditions, and the effects elements of the research area, namely:

-A low-order single-order laboratory is selected in all cases where the experimental work is stored larger than 0.5 lít/gis;

-The beam laboratory pump is only selected when correctly determining the water-led coefficient, the water system, which calculators the ability to spread matter or determine the boundary conditions of the water storage.

-The group laboratory pump is only selected when the ability to lower the water level from a construction does not meet the requirements of the laboratory mission;

-Low-order laboratory water pump is only selected when solving the task of determining the rule of lowering the water line with different basins to serve the assessment of the reserves of underwater water extraction using hydraulic and hydraulic storage. I mean, it's more than three hours a day.

-The experimental water pump has the indicator that the indicator is only selected when solving the operation of the motor study of the soluble matter in the water containing water at the laboratory area in the extraction conditions;

-The sensated experimental water pump is only selected when required to study the performance of water harvesting in the works that have a high volume of 5 litres per second.

c) The layout and the mass of the experimental work must be based on the characteristics of the water storage, the boundary condition, the level of investigation, the extraction of water use, namely:

-The laboratory position must be located in the characteristic, typical of the study area, where the water thickness changes abruptly. The design of water pumps near the borders is done when the purpose of the purpose is to study boundary conditions;

-For the single laboratory pump to determine the permeability system, the experimental work location must have a unique water rock composition component of the study object;

-For a cluster of laboratory water injection, the position of the layout of the experiments with the aim of determining the basic hydromaterial geological parameters must be characterized both in the meteorite composition and the soil thickness of the water. The diagram design, the layout of the observation beams in the beam testing water pump must achieve the following requirements:

+ Only designed an observation beam in the infinite uniform water floor; the two-ray design in the stratair consists of a dual-ray design; the design of a minimum of two rays (parallel to the boundary and square angle with the boundary) when studying the boundary conditions of the water storage. When studying water balance, the number of observed rays can be designed to four;

+ Design of the number of observable works in the pump-based cluster of laboratory water experiments, as follows:

For the task of determining the number of basic hydrology geologic parameters, when the floor contains the uniform water, the number of observed structures from 1-2 with the water-bearing stratdeck, from 2-3 with a non-pressure water container. When the water layer is not uniform, the number of observable structures is selected from 2-3 with a preschal-water container and 3-4 with a non-pressure water level. When the water floor is very ununiform, it has to design a minimum of four observable structures;

For the study of relations between the water stratities together, the design observations must have both in the upper-lying or lower-water layer of water that is pumped as well as in the middle class of the water-containing layers. When studying the relationship between the soil water with the surface water, the river's water-to-mouth kill an observable and if the river has a large width (50-70 m), it has to be deployed on the opposite side of the surface.

The number of laboratory water pump works required to calculate the expected low water or water level from a single water pump, total traffic or low water levels, the ability to interfere with each other of water pump structures.

d) The duration of the design water pump must be consistent with the characteristic of the soil that contains water and meet the requirements of the investigation mission, evaluate the water resources below the soil as follows:

-The duration of the pump-pumping design period for each drill hole was specified for a minimum of 3-4 cases for the diameter drilling holes under the f 219 mm and 5-6 machine holes for the diameter drilling holes from f 219 mm or up. When the laboratory part of the land is left, the fine grain, the filter tube, or the laboratory fragment, in the cave-which contains many fine-grain deposits, the upper limit applies. When the laboratory part of the land is left, the rough seeds, the pipe filter, or the laboratory experiments in the cracks, drilling in the water, apply the lower limit. For the holes of the large diameter drilling, if it does not insert gravel, apply the lower limit, and if there is a gravel inserts, apply the upper limit;

-The duration of the pump test for all cases no more than 3 cases;

-The design must base the level of water enrichment of the work and the purpose of the experiment, namely:

+ For experimental water pumps with no observable, design from 6 to 9 cases;

+ For the sensated experimental water pump, design from 0.25 to 0.5 ca, minimum per hour per hour;

+ For experimental water pump with observable work, design from 15 to 30 cases in the soil of vulnerability, pressure, cracking ground-karst, and between 30 and 45 cases in unpressined rock soil, in a two-layer environment; when studying boundary conditions between 15 and 30 cases when studying water and water relations in the soil and between 30 and 45 shifts when studying the relations of the water layers separated by the weak waterproofing.

+ For experimental water injection in the conditions of hydrology geology, complex hydrochemistry and soil contamination research, the duration of the testing of the design water is not below 90 cases.

-The timing of the water level design restoration provides three cases for each experimental water pump.

The water pump.

-The pump device is selected to have the capacity consistent with the design or water level of design, the ability to regulate the flow or water level at the request of the experiment and must be consistent with the physical, chemical nature of the water source; ensuring operational capability. in weather conditions, climate and energy supplies at the laboratory area as well as the ability to make their deployment to water pump.

Water pump devices are air compression pumps or sink pumps, centrifugating pumps;

-The sinking power pump must meet the ability to pump large enough pumps with a higher thrust height than the expected water depth of the experiment, selected for well-built wells, pits, holes with a diameter large enough, water column depth in the field. When the pump ensures the level of the inundation of the pump and its stable operation, the water has low levels of low-quality and low minerals, low metal corrosion properties;

-The unflooded centrifugable centrifugator for the well-sized, pit-sized pits that are large enough or shallow water levels, the requirement for low water levels is not large;

-Gas compression pumps are selected for the zero-diameter drilling holes, the water level is not too deep, requiring a steady degree of stability and the ability to adjust to zero traffic and not require the study of dissolved gas content in the water.

What? 5. The preparation work before the pump water pump

1. Planning, implementation, and experimental water pump techniques.

2. Survey conditions that include the terrain, road, public background; properties, structures, structures, trees, and flowers requiring protection; the choice of the solution to guarantee technical requirements and safety at the scene.

3. Check, evaluate the operational status of the laboratory work at the field; determine the details of the work needed before and in the construction work to ensure the experiment meets the technical requirement.

4. Human resources, equipped with experimental water pump; assemble, transport equipment, supplies, fuel, and other facilities at the scene.

What? 6. Blow the hole in the hole

1. The pump-blowing content

a) Installation and examination of the work conditions of the device;

b) Progress pump washes in accordance with technical measures in accordance with the actual conditions, including:

-Shoot the beam with high pressure gas into the filter pipe, pumping the bottom by the compressuriter.

-Washing with water pressure, creating a combination of a combination indentation combination using chemicals that dissolve the end to clean each section of the filtration pipe.

c) Progress measures the depth of the drill hole, the turmucency test, the sediment content in the pumping water, the measurement of the flow and water level during the pumping process to determine the pump stop; log the log, the work book;

d) Remove, pack equipment, tools after the end of the drill hole and prepare for the next work.

2. Technical requirements

a) The washing pump process must be conducted in the top-down sequence, from the step of the filter pipe to the bottom of the bottom, restoring the depth of the hole;

b) When the pump blows with a gas compressuriter, the pressure and the compressed air flow must be consistent with a specific condition of the degree of ventilation and the durability of the filtration tube. For the filtration tube located in fine seed sediment, it is necessary to blow in order with small to large capacity;

c) When the washing has a combination of chemical use, the pickled time must be long enough to break the shell before using the pumping measures. After cleaning the filter pipe must proceed with the washing pump to clear the bottom of the drill hole;

d) During the pumping of washing, the data on the traffic, the quality of water must be measured and documented to serve the experimental water pump design;

The end of the blow, the water to be assured, there is no drilling, the solution; the filter must work well, the depth of the hole is guaranteed;

e) The washing works are only stopped when required. In the case after the period of injection-washing pumps under a design that has not yet been reached, the unit of work must report to the governing body to determine a time increase for the purpose.

What? 7.

1. The experimental water pump contents

a) Installation, examination of the work conditions of the device by design and in accordance with the actual conditions;

b)

-The pumps.

-Measure the water level, flow, water level, recovery level, water temperature and air;

-Adjustment of the streamline coefficient (the case of injection of gas compression in the method of injection of the gas-water mixture) or depth of placing the machine (the case for use of other pumps) and the flow to match the required water pump requirements;

-Log logs, experimental water pumps, set up lab charts at the scene;

-Adjust the design on the basis of an experimental water pump.

2. Demand pump technique

a) All water-pumping projects are expected to pump experimental water testing to determine the low flow and water levels before the decision to pump water;

b) The pump traffic must have a sufficient level of impact, not too small or too large compared to the water enrichment of the laboratory floor. Before the injection of the selection selection test is as follows:

-For water injecting in the sand before the Quaternus, the sandstone has a weak bond level, the ground is cracked, but not karst with the conduction of the oscillator oscillating between 50-500 m. 2 /day, select a 5-25 lít/gt water pump;

-When pumping water in the sand accretion, the sand deposits-the accretion-the cumin, the cracked ground-the debris hole in the karst cave, with a water conduction of 500-1000 m. 2 /day, pick up the water pump 25-50 l/gis;

-When the water pump in the gravel floor fills the sand, the karst cracked, with a 1000-3000 m conduction. 2 /day, choose 50-150 lít/gis.

-For rocks with water conducer below 50 m. 2 /day, traffic pumps 1-5 seconds per second.

c) The flooded coefficient (case of injection of gas compression in the gas-water mixture) or depth of the machine (the case for other pumps) and the traffic must ensure that the minimum water level lower is 3 meters for the water storage. No pressure and four meters to the level of water pressure. For the unpressable water floor with a small thickness (4 ÷ 5) meters, the minimum lower water level must reach 20% of the thickness but not less than 1 metre.

What? 8.

1. Laboratory pump content

a) Installation, examination of the work conditions of the device by design and in accordance with the actual conditions;

b)

-The pumps.

-Measure the water level, flow, water level, recovery level, water temperature and air;

-Release instructions for the pump work required to release instructions;

-Gathering, measuring the effects factors (meteorology, hydrology, hydrology, irrigation, irrigation, extraction, discharge) during the course of the experiment;

-A sample of water quality research;

-Log logs, test water pumps, set up lab charts at the scene.

c) Remove the device, the instrument, the site and the refund.

2. Demand pump technique

a) The common requirement in the conduct of the experimental water pump:

-The pump water pump uses the flow control method and follows water-level performance, water quality throughout the pump:

+ When an experiment is injected with a non-changing (stable) traffic, the pump water flow is stabilized (if there is a change, that change is within the permitted limit). With each order or an experimental flow level, water pump works must have a non-changing (stable) traffic, the maximum fluctuating value of volume does not exceed 5%;

+ When the test pump with low water levels does not change, the pump water flow adjusted to control the water level is stable, the maximum number of low water levels below 5-10 cm.

-The pump traffic must have a sufficient level of impact, not too small or too large compared to the water ' s water enrichment and is decided based on test water injection results;

-The right case required to pump with many low levels, then the number of the following steps is obtained by 1.5-2 times the previous step, or the amount of traffic between the steps is taken by the first order of first degree traffic;

-The water level lower number must be consistent with the experimental form and characteristics of the water storage.

+ When the water is pumped, the lower water in the water level needs to be 3 meters for the non-pressure water layer and 4 meters for the pressure water floor. For the non-pressure water floor with a small thickness (4-5) meters, the minimum lower water level must reach 20% thickness but not less than 1 metre.

+ The case of injection of the beam laboratory, the difference between low water levels at the continuous observable and low water levels at the minimum maximum observed construction must reach 0.2 metres;

+ The case of permeability studies when the water level is both lower, the effect of lower water levels of the work pair at a minimum must reach 0.2 metres;

+ When the water pump at work with the filtration tube is not inundated, the largest lower water level in the work is not greater than a third of the filtration pipe.

-Request for continuity in experimental water pump:

+ In an experimental water pump, the pump must ensure continuous operation. If the event occurs to stop pumping (power loss, machine failure ...), the maximum shutdown time does not exceed 5% of the total time of the experiment, while simultaneously ensuring the time period to restore the flow (water level) at the pump work on value as before. meeting the incident does not exceed 15-30 minutes;

+ The case with the incident occurred when it was conducted at 5-10% of the total time of the experiment, the pump work had to be reconducted from the start.

b)

-The case of water pumping experiments with a variety of low levels, the largest of which comes from the smallest to the smallest of the soil containing raw grains (boult, gravel, coarse sand, gravel gravel, cracked ground) or vice versa with rocky soil containing fine seed water (sand, phase sand, phase clay). At the end of each wave, the water level must be measured to fully recover before the transition to the next.

-The case of pumping out the experimental water, traffic transfers from the smallest to the largest, continuous transition from the other to the other level. After the end of the final traffic level, the water level must be measured upon full recovery;

-The case of an experimental water pump has the indicator, the experiment started by bringing the indicator to the location of the drill hole, mixed with water, and then pumping out the water, sampling, analyzing the concentration of instructions at the present. field, which requires attention to determine the background concentration of the indicator agent.

c) Request for the layout of the pump in the laboratory work:

-When using a horizontal axial centrifugator, the vertical axis, the sink pump, the depth of the pump layout must be grounded in the depth of the water level, the water level in response to the request of the experiment. Relying on the water pump structure texture to select the appropriate pump type;

-When using a gas comprestion pump:

+ Put the gas pipe at the depth of the water level, ensuring the depth of 1.4 to 2.5 times the depth of the water level on the average water storage and 4-5 times the depth of water level on the rich and very rich.

+ The case of water-based experimental water pump design, the design position that sets the gas mixture of the gas pipe must be higher than the lower end of the aquacal tube in about 3-5 meters. The diameter of the gas pipe must be based on the air mass, the diameter of the water lift.

+ When the water lift is inundated with the filter pipe, the design water lens must be smaller than the two-level minimum filter.

+ The lens design depth must be greater than the depth of the water tube design from 3-5 meters.

d) Request for experimental water pump time:

-The pump water pump must be conducted with the time of the assurance of the information, the number of specific reflection of the research object, which solved the task of investigating the investigation. The actual time the experiment can be reduced or increased compared to the time of design;

-For works that have less than one per-second volume, the time for the water injection does not last three times.

-For the works that have the flow of 1 lít/second or more, the time that the pump is specified for the experimental forms is ended when it reaches the following pump cessation standards:

+ The water-level move reaches the near-stable movement;

+ Apppoints the pressure line downbeat on the time-tracking graph, which characteres the stable phase for the layer containing infinite uniform pressure or cracked ground, cracking-karst;

+ Comes up with an increase in the water level rising back after a slow time on the time-tracking graph, which characteres the synthetic water system of the floor with the remaining water straties (unpressable, two layers, two pavements ....);

+ The experimental water pump has observable works on a combined tracking graph that must be found in a near-parallel or parallel route.

-Experimental water pump with the purpose of determining the number of basic hydrological geological parameters in the water-based sphere, the time of the experiment required greater than five times the time value of the time calculated for the movement of the water to the near-stable, out-of-the-place. the work must be in the non-interference zone of the hydraulic grid;

-The study of water quality change is only to be stopped when there is enough actual documentation affirmable the stability of the evaluants that evaluate or determine their changing rules by space or time.

Required to determine the static water level when the experiment was:

-Before the official test water pump, the water level must be measured with a shift when the water level is stable or three times when the water level fluctuated;

-When the water-filled floor has a stable natural move during the experiment, the water level of recovery is completely taken as the value of the water level.

-When the water-contained stratiage is unstable during the experiment, the pre-restoration water level is taken as the water level value (convention) of the following experiment.

e) Request for identification of lower water levels:

-When the natural dynamics of the water under the soil are stable, the lower water levels must be determined by the difference in the value of the water-level value with the static water level; the average level of lower water levels of the laboratory work must be determined by the average value. Last 8 hours before the pump stop;

-A case of unstable water-based natural water, the actual water level measured at the work must be calibrated by using the process ' s water-level dynamic observational document outside the sphere of influence of water pump and can be found. The same geologic conditions are similar.

g) Engineering measures water levels, traffic, water temperature and air.

-Water measure:

+ Measuring the depth of water level at the water pump work is used with an electrical or automatic measurement device;

+ The measurement of the water level at the observable site is used with electrical measurements, a sound tube, or an automatic measurement, depending on the water level, texture structure;

+ For the work with hot water, high gas, when measuring the water level must use additional support tubes and gas separation equipment;

+ The depth of the water level measured by the manual method must take the average value of at least 3 measurements.

-Measure:

+ The measurement of the flow at the water pump is used with the instruments, the measurement device consistent with the actual traffic, including the quantitative barrel, the gauge, the next volume, or the pressure measurements.

When water flow is no larger than 10 lít/second, it can be measured by quantitative bins or triangles or triangles;

When the water flow is 10 lít/second or more, it is possible to measure the rectangular board with the b using 320, 420; 640 and 1200mm. In addition, the measurement of the flow design can be selected using the next volume or the measurement instrument through the water pressure;

When measured by the quantitative barrel, the measured value must be given the average of at least three measurements, the three-time error is not greater than 5%, the metric must have a suitable capacity to ensure that the time full of barrels is less than thirty seconds.

When measured by the measure, the height of the water column overflows must be measured with the accuracy of mm and must take the average value of at least 3 measurements as the calculated value. The volume measured by the board is calculated according to the appropriate formula as follows:

Q = 0.014h 2 (for triangles)

Q = 0.018.b.h (for rectangular game)

Q = 0.0186.b.h (for the stairwell)

In it:

Q-Flow by board (l/s)

-The height of the water level at the edge of the board.

b-Down edge width (cm)

-Engineering layout techniques must comply with the conditions:

+ The distance from the planks to the bottom as well as the distance from the edge to the outer edge of the board is no less than 10-20cm;

And the flow of the flow of the boards shall be relatively steady, and the water that flows through the board shall be the flow of freedom.

+ The game is not submerged in the water; there is no water that passes through it, or passes through the planks, and the bottom of the board; and the boards shall be set on the horizontal, and it shall be determined by water.

+ The case with a measuring board, a millimeter gauge must be attached tightly to 0.8-1.0 meters. Point 0 of the ladder must coincide with the ink of the skateboard. The length of the barrel depending on the water flow must reach 1.5-2 meters to 3-4 meters, the width of the barrel is 1.5 meters, the height of the barrel in the range of 0.5-0.75 meters.

-When you determine the volume of the next volume or the water pressure measure, it is possible to follow the instructions on Appendix 1 with this message;

-Measurements of water temperature and air

+ Measurement of water temperature is conducted at all water pump works, observable, pit, well, lake or river (if required).

At water-pumping, water temperature is measured at the nozzle, where the flow of water exits;

At observable points, water temperature is measured at the scope of the filtration pipe and kept for about a few minutes;

When measured all points to measure the water temperature, must prevent the effects of air temperature, particularly for groundwater and when the air temperature is greater than normal fonts;

Water temperature measured by slow therometer thermometer with a scale of 0.1-0.2 o C and there are metals, air temperature measured by normal cypress thermometer with a precision of 0.1%. o C. Read the temperature with accuracy 0.1 o C.

-Ask the numbers to read:

+ Measuring water levels in the hole, demand reading up to cm;

+ Measuring the water level to calculate the volume (height of the board or height of the quantitative barrel), the reading number must be reached in millimeters;

+ Measurements of water and air temperature, love reading to half 0.5 degrees ( o C);

+ Measuring time, asking the number of readings to the second.

h) The frequency measures water levels, flow, temperature

The frequency of water levels, traffic, temperature must meet the number of orthopeal data requirements. Minimum measured frequency in table 1.

Table 1: Water measurement frequency, flow, temperature

Time

Water Level

Volume measurement

Temperature measurement

20 minutes.

One minute. One minute.

Five minutes.

One time.

The next 20 minutes.

Two minutes.

Four minutes.

One time.

End of Time

Five minutes.

Five minutes.

One time.

Second hour.

10 minutes.

10 minutes.

One time.

The fifth hour.

20 minutes.

20 minutes.

One hour to one.

Tenth hour.

30 minutes.

30 minutes.

One hour to one.

From the 11th hour until the end.

One hour to one.

One hour to one.

One hour to one.

i) The sample of the water quality study in the pump water pump:

-Taking samples of water quality research at drilling holes, wells, laboratory pumping must be conducted at the end of the pump;

-Case water pump in complex hydrochemical conditions, which is at risk of contamination or when there are special requirements, the minimum must take a sample with each of the 3-5 test cases;

-How to take, preserve, transport the prescribed form at the Digital Notice. 13 /2014/TT-BTNMT February 17, 2014 by the Minister of Natural Resources and the Environment for the Investigative Technical Regulation, assessment of the water resource under the soil.

l) Measuring the effects factors

When pumping of laboratory water in the affected areas of meteorological, hydrology or mining activities, water use, lake water levels, wells wells, holes in the sphere of influence of water pump must be observed, collecting documents, and more. It ' s full to study the hydraulic relationship between water and water in the soil of the experimental water and calibrate the actual water level measurements in drilling holes, wells.

What? 9. Edit the experimental document

1. The Content Editor Document

a) Edit document in the pump process:

-Check the conditions to comply with the pump water.

The frequency of frequency measurements, water levels, temperature, lower water levels over time at water pump work (when pumping water with zero traffic) or rate of flow change (when pumping water with low water levels do not change), quality stability Water to propose a measure of the quality of water pumping if it is needed.

-Analysis of the charts, professional graphs, assessment of the match between the results received with theoretical models; the decision to prolong or stop the experiment according to the actual results to ensure the water pump at the technical requirement.

b) Edit the document after the pump:

-Enter the data into the computer, check, synchronize information, data.

-Establish the tables, the professional graphs.

-Evaluate the level of reliability and selection of metrics serving computing;

-Calculate the data processing in accordance with the experimental model for solving specialized tasks.

-Set up the results report and report the results of the results.

2. Technical specification document orthography

a) Edit document in the pump process:

-When you check the conditions to comply when the water pump is pumped, the test results must be expressed by the audit editor. For observable work, the time of the pump water injection must be compared with the time of the convention calculation to rule the locomotion of the underwater water reaching a near-stable state;

-During the pumping process, calibration of measurements and related information ensures the calculation of low water levels on the basis of the official choice of water level depth and the average water depth of the work at the end. period of water intake, water flow pumping out and the last 8 hours average traffic (the case of traffic is variable but does not exceed 5%).

b) Edit the document after the pump:

-Before orthography, it is necessary to assess the extent of the effect of natural conditions, judgment, treatment of the effects of natural and artificial elements to water-pumping materials, assess the extent of the influence and calibration of the experimental document conducted on the basis. taking advantage of the available documents;

-The water pump document after the examination and evaluation of the extent of the effect of the factors must be given a statistical table that distributs some of the main types as follows:

+ The type used for the assessment of the water-rich level;

+ The type used for the basic hydrotext geological parameters assessment;

+ The type used for accurate evaluation of basic hydrology geology and other specialized parameters (permeability coefficient, drag of river degeneration, displacement parameters);

+ The type used for the assessment of the relationship between the flow and numeration of the water level, which determines the water level jump, the influence of interference;

+ The type used for the boundary condition study of the water container.

-A document of the modified water pumps must ensure the full implementation of the following main work:

+ Determines the water level, flow, lower water levels of the experimental work by choosing the static water ink value; calculate the value of the flow, the lower water level over time, determine the traffic, the average water level lower in the body. Water-level depth (which is calibrated when needed); the quantity of ratio of traffic (which must remove the water-level jump form due to the hydraulic resistance of the material in the zone near the drill hole and of the filtration tube). The case has a observed construction, which must choose the value of the water level; the water level is low and the distance to the water pump. The case of water pumping must be determined by the group and determine the added value of the flow, the average low water level of the entire group;

+ In the application of single-test water pump documentation, depending on the hydrologic geology and motion geology of the soil water, it is possible to apply standard curve methods, track time, try gradually, or use specialized software to calculate. mathematical, determining the number of basic hydrology geologic parameters (water conducers, transmission coefficiers or water transformations);

+ In the orthography of the beam laboratory pump, it is necessary to construct a waterline, which determines the flow and diagram of the water's velocity velocity in the natural state. When the experimental water layer is finite, it is necessary to differentiate the water-level movement to choose which works to calculate the basic hydromaterial geologic parameters and the service works that calculate the specialized parameters. At each observable process, it is necessary to calculate the timing of the test time to achieve a near-stable state, the effect of the slow effects that reach the theoretical state of motion. Defining the theoretical model in accordance with the relationship received through the experiment between the lower water levels and the time to choose the method of determining the basic and specialized hydrological geological parameters.

+ In the application of single-test water pump document with multiple traffic steps, must proceed to test the permeability law; predict the flow of work by the flow curve corresponding to theoretical relations by establishing the graphs and identifying the components. The number of parameters featured in the equation of the relationship graph between the flow with the numeration of the water level (or the logarithm value of those quantities) by the least squared method; the projection and review comparison of extrapolation methods follow the lines. curate the above volume and the choice of the most expected method used to calculate the reserves;

+ In the team-testing document regulator, which must calculate the hydrological geologic parameters in the case of the synchrony group laboratory injection as for the single laboratory pump, which changes the drill glass, wells by the radius of the drill hole, the pump well. Water. Where the group is not synchrony, the calculation of the basic hydrological geologic parameters must be conducted by replacing the time (t) by the time of the conduction (tdd) and radius (r) by the radius of the conduction (rdd), the value of the decline in ink. The water was produced by each other in the forecast for the reserves of hydraulic perturbation works.

+ In the electrocution of the sensating experiment water pump, must remove the non-achievable pumps to document the use of the technique required; must determine the coefficiers of the relationship equation between the low-level lower numeration and the pump flow; calculation. The pressure losses in the well and the pressure damage in the hangar deck, the well performance and the calculation of the water-containing system of water. The editing of a sensated experimental water pump can perform manually or in a suitable specialized software;

+ In the experimental water pump-injection document that releases the indicator, must build a concentration of the concentration of instructions over time since the beginning of the release of the indicator and the analysis sampling time; determine the greatest concentration of instructions and the time. The space corresponds to those concentrations; relying on the angular system of the specialized graph established on the basis of the concentration of instructions and the time, which determines the conversion parameters included: The convection diffusion coefficient, the salt distribution coefficient, the central organic speed. It ' s the movement of water and the effective vulnerability of the country to the professional formula.

-Selecting the characteristic values of the parameters that serve the water resource assessment from the soil from the set of metrics the parameters received through the experimental water pump-pumping document must be done using the numerical method of arithmetic, The size of the army, the average average, or the probability of it.

-When using the statistical probability method, the selection of characteristic values must proceed according to the sequence:

+ Remove the raw error and select the values that do not contain raw numbers in the set;

+ The average arithmetic of the set and variality (differentiation in two different cases when set is less than 20 and from 20 or above); deviation;

+ Determine the error of the set and the accuracy of the experiment (mean error);

+ Define the expected value of the parameters (in accordance with the purpose of water-level or drainage).

-The post-orthography pump document has to be shown on the charts, the graph variable, the number of lower water levels over time, the relationship between the traffic and the ratio of the lower water levels; the experimental design scheme; the results. The water pump and the hydrographic geological parameters; the amount of elements, the germ, the laboratory mapping scheme.

What? 10. Request for environmental safety guarantee

1. Before the experiment, measures ensure the ability to collect and dispose of saltwater, brackish water, hot water and other non-standard water must be prepared.

2. When pumping out laboratory water in the sinkhole and karst soil, the risk of soil subsiderization, damaging the homes, the construction must have a prevarable measure in the design, construction work.

3. Water wastewater from laboratory processes, sewage, other biowaste must be collected, processed under environmental protection regulations.

4. The fuel used for the experiment must be preserved safely, without burning, detonation or leaking to the environment.

What? 11. Labor Safety

Prior to the construction of the public at the scene, the public unit was required to organise labor safety training (periodically), to protect the labor and fully implement the safety of the labor safety regulations.

Chapter III

THE PRODUCT OF THE EXPERIMENTAL WATER PUMP

What? 12. Middle Products

1. The intermediate product includes unedited public execs and document editing products at the scene.

2. The unedited execs include the experimental water pump test log, laboratory pump, volume confirmation, test results, incident processing, incident processing.

a) Diary of the test of the experimental water must be fully documented, with the time being carried out by the time of the experiment from preparation until the end. The contents of the diary need to express the weather, hydrology, tide, irrigation activity, water volume, or water discharge; the performance of experiments, the host, the participants, the supplies, the supplies, the equipment, and the samples. Sampling time, abnormal phenomena that occur and results processing in the course of the experiment;

b) The experimental water pump rules in Appendix 2 with this message;

c) The compaction of the volume, test results and processing of the incident must be established right at the field at the time of the examination, measure, and must have the signatures of all the individuals involved, which specifies the role, responsibility of each person;

d) The experimental drawing test must show the actual parameters of shape, size, arrangement position, layout of devices, pump tools, measurements, water levels and depth of work after the experiment. The drawings represent the A3.

3. Document-editing products at the scene include reporting results assessment results at the scene, graphs, established charts based on site measurement results, audit manifold, validation time validation.

a) The market-based items at the scene: Traffic over time (Q-t); numerical lower water levels over time on the logarithmic axis (S-lgt); the water level recovered over time on the logarithmic axis (S*-lgt); for the right-beam laboratory pump. Digital low-level digital mapping by time aggregation variable-distance on the logarithmic axis S-lg (t/r) 2 ); the lower number of water levels in the distance on the logarithmic semi-axis (S-lgr), for a multi-degree experimental water pump that must map the number of low-water (q-S) low-level low-water storage (q-S); the low-level number of water levels (Q-S);

b) The report review results assessment at the scene must be evident in comparison of the assessment steps compared to the purpose of the requirement, the resulting trend of results and the suitcases of the theoretical models, the graph selection thesis, the characteristic paragraph for the calculation.

What? 13. Last product

1. The final product of the experimental water pump in the soil water resource assessment investigation includes reporting results of the results of the test document and the results of the results of the laboratory pump results.

2. The results report that the results of the test document must show the content: Data reorientation, analysis, determination of impact factors, calibrate metrics after the elimination of external influences, determine the law that takes the number of experiments and options. The computation model, method selection, and orthopefactor tools, the logical accounting results, the results thesis, and evaluate the level of completion of the header item.

3. The experimental water pump results report must clear the contents: the tasks of the laboratory pump by design, method, and volume of work done, the results achieved, evaluate the level of completion, stating the cause and promotion of the work. The use of experimental results in the specialized tasks of the investigation project, the assessment of the water resources of the soil.

What? 14. Product Exchange Regulation

The correct document at the scene must be handed over to the host of the project engineering in no more than 3 days when the experiment is concluded. The water pump competition document must be handed over to the unit presiding over the delay seven days after the end of the experiment at the scene. The final product document must be handed over to the project holder for the slog project seven days after completion of the orthography work, the final report and no more delays than the project capture phase.

Chapter IV

EXECUTION CLAUSE

What? 15. Organization to execute

1. The minister, peer agency chief, government agency, Chairman of the People ' s Committee of the Provinces, the Central City of Central City, the Secretary of the Department of Water Management, General Manager of the National Water Planning and Investigation Center, Prime Minister head of units of the department and organization, the relevant individual responsible for this private practice.

2. The Bureau of Water resource management is responsible for guidance, examining the implementation of this Information.

What? 16.

It has been in effect since 15 April 2015.

In the course of implementation if there is difficulty, entangrium, recommended agencies, organizations, individuals with timely reflection on the Ministry of Natural Resources and Environment for research, modification, addition.

KT. MINISTER.
Chief.

(signed)

Nguyen Thi Lai