About The Requirements For Objects To The Divorce Of The Winds And The Closure Of Mine Workings

Original Language Title: o požadavcích na objekty pro rozvod větrů a uzavírání důlních děl

Read the untranslated law here: https://portal.gov.cz/app/zakony/download?idBiblio=41402&nr=4~2F1994~20Sb.&ft=txt

4/1994 Coll.



DECREE



The Czech Mining Authority



of 6 May 1999. December 1993,



laying down the requirements for the design and construction of buildings and equipment

for divorce and the isolation of the winds and the closure of mine workings



Change: 90/2003 Coll.



Change: 176/2011 Sb.



The Czech mining Office lays down pursuant to § 6 paragraph 1. 6 (a). Czech law)

the National Council No. 61/1988 Coll. on mining activities, explosives and

the State Mining Administration, as amended by Act of the Czech National Council No. 424/1991

Coll., Act of the Czech National Council No. 542/1991 Coll. and Act No. 171/1993

Coll.:



PART THE FIRST



General provisions



§ 1



The subject of the edit



(1) this Ordinance applies to the design, manufacture and provisioning

větrních and hrázových objects to the coal mines. Specifies the technical and

safety requirements for wind and hrázové objects and equipment

hrázových objects.



(2) this Ordinance shall not apply to the conclusion of the main mine workings ^ 1) and

the closure of old mine workings. "^ 1a)



(3) this Ordinance has been notified in accordance with the directive of the European

Parliament and Council Directive 98/34/EC of 22 December 2004. June 1998 on the procedure for

the provision of information in the field of standards and technical regulations and legislation

for information society services, as amended by Directive 98/48/EC.



§ 2



Interpretation of the terms



For the purposes of this Ordinance shall be deemed to



and wind nevýbuchuvzdorný mine object) structure and equipment

intended to guide the větrního stream in the mine. It is the wind locks,

wind the insulating doors and wind control door and control devices,



(b) wind Cap construction) the object specified by the nevýbuchuvzdornému and the tight

the conclusion of the abandoned mine workings and the mined out area, c) wind door

nevýbuchuvzdorné door is used to control or isolate větrních streams

in mining with regular walking or transportation,



(d)) hrázový object výbuchuvzdorný object to mining building

channeling větrního stream in the mine. They are the hrázové door hrázové

the door with the passage for the conveyor, sealing and insulating walls



e) equipment hrázového object product and equipment intended to be incorporated

or hanging on the hrázový object to allow transit traffic

resources, pass or hatchway people, mine water drainage, sampling

samples of the mining pollution, flow of the winds and the like. They are hrázové

doors, hatches, hrázové plate ducting, passages for conveyors, hrázové

průvětrníky and other pipes,



f hrázové door výbuchuvzdorné door) that is used to control or isolate

větrních currents in mining with regular walking or transportation,



g) control device object used to control the volume of water flow

mining of the winds in the wind network,



h) closing the barrier of the building object to the tight and výbuchuvzdornému

the conclusion of the abandoned mine workings and the mined out area



I) insulating barrier construction výbuchuvzdorný the object specified by the výbuchuvzdorné

the isolation of the mine workings provided with hatch, hrázovou lutnou, the passage for

conveyor or hrázovým průvětrníkem,



j hrázovou lutnu výbuchuvzdorná lutna) round designed for

hatch dam,



hatch insulation object to) equipment fitted to the výbuchuvzdorné

the dam is used for the passage of and transport of equipment and material



l channel) for object isolation device for conveyor

výbuchuvzdornou isolation of the mining works with belt transport coal,



m) hrázový průvětrník pipe equipped with protivýbuchovou safety

klapou,



n) emergency pipeline, which is intended for the transport of inert

gases, or other materials in a confined space,



the cable duct,) which is intended for the passage of the force,

communication and control cables,



p) peření impassable wind bonding for tight closure of mine

or the regulation of the větrního stream, used either alone or as part of the

another object,



r) wind barrier longitudinal bulkhead used in podružném ventilation

mine workings,



with the wind curtain device) to control the volume flow of the winds, on

that is not subject to the requirements of tightness,



t) type of reinforcement rib forming a regular bar filled základkovou

matter,



u) wind wind blockage in your desk to avoid distortion of bond větrního

stream or for the conclusion of the excavation, which is not subject to

requirements for tightness.



PART TWO



Wind objects



§ 3



Wind bond



(1) Wind bonding, according to construction and the material used is divided

on



and the brick or brick) blocks,



(b)), plavenou



(c)) from rychletuhnoucích and special materials,



(d)), kulákovou



e) combined,



(f)) peření.



(2) Wind bonding must be built on the sites of designated special

Regulation. ^ 1b) must be subject to the following conditions:



and mining work in the place) of the building wind fastenings must be secured against

the fall of rocks at a distance of at least 5 m on either side of the locks,



(b)) in the conditions, where the soil pressures are manifested, or their

speeches expected wind bonding must be made so as to acts of

the rock pressure resisted without substantial breach of her tightness,



c) wind caps of cross distance, fork or branch must be

such as to allow the parties to build accessible from closing the barrier,



(d)) at the site of construction of the wind should be caps before beginning construction

remove all unnecessary pipeline, transport equipment, cables and

relaxed rock or coal.



(3) during the construction of the closures, except those that enclose the front

the corridor when the komorovém conquest, incorporate and freeze the pipes for the subscription

samples of air and, if necessary, by other specific piping or equipment.



(4) the spaces in front of the roadblock must be maintained so that they

type-safe access to controls.



§ 4



Wind bond brick



(1) for the construction of masonry fasteners may be used



and full of bricks) minimum compressive strength of 20 MPa



(b) concrete blocks or slag concrete brick wall) on the minimum compressive strength

20 MPa



c) other materials, if you have been identified as suitable for use in

Underground ^ 2)



(d) the mortar cement or lime) with a minimum compressive strength of 10

MPA.



(2) the Walled enclosure must always be anchored around the perimeter of the mining works

the intact rock or coal pillar.



(3) the thickness of the masonry fasteners shall not be less than 15 cm to 7 m2 light

the cross-section of the mining works, above 7 m2 must not be less than 30 cm.



(4) when the masonry fasteners must be complied with the following conditions:



and come into contact with the outline of the masonry) jams or facilities closures must be filled in

without spaces; in particular, it is necessary to dozdívat the upper part of the closures and, where

It is not possible, it is necessary to fill in all the gaps and cavities with cement or

Another grouting,



(b)) should be every stone seal with cement or told you anything;

vápenocementovou mortar on the accessible side.



§ 5



Wind bond plavená



(1) For the construction of a float caps is used



and a mixture of fly ash and water),



(b)) a mixture of fly ash, cement and water; the weight ratio of fly ash and cement 4:1

up to 1:1,



c) other materials, if you have been identified as suitable for use in

underground. ^ 2)



(2) the Plavená bond is established by flooding the area of the mining works

defined by a pair of filter peření plavicí mixtures, inclined

mining, where the inclination of mine is allowed per filter

peření with the fact that the thickness of the caps is measured under the ceiling of the mining works.



(3) when establishing a float fastenings must be subject to the following conditions:



and the filter is to be peření) build in a shallow indentation that was built around the

the perimeter of the mine after removal of the reinforcement in place of a jam; the rest of the

reinforcement between the two peření can be left,



(b)) filling and discharge Sockets run audit pipes must be the highest point

the passage in the area of control of the pipeline closures (ústí nad filling

by pipeline),



(c)) the flooding caps must be carried out in Napoleon.

Completion of the float is in a multiple caps doplavování

closures, the most concentrated mixtures.



To speed up the flooding caps can be used to fill the space between the peřeními

stone.



§ 6



Wind bond of rychletuhnoucích and special materials



(1) for the construction of closures of rychletuhnoucích and special materials may only be

used



and the normally slow-curing) or plaster with the beginning time of solidification of 6 to 20

minutes when the mechanical transport plaster mash,



(b)) quickly, normally or slow-curing with the beginning of time freezing plaster

2 to 20 minutes when the pneumatic transport of gypsum,



(c)), anhydrite



(d)) other special materials, if you have been identified as suitable for

underground use. ^ 2)



(2) This establishes a bond of gypsum trucked into the space between

a pair of supporting peření with sádrovacího aggregate.



(3) in the construction of gypsum fastenings must be subject to the following conditions:



and) plaster bonding must always be anchored around the perimeter of the mining works

the intact rock or coal pillar



(b) filling in width and control) tubes shall be in the highest places

closures,



(c)) without breaks and plastering at all times abide by the water

coefficient (the proportion by mass of water and plaster) range from 0.6 to 0.8.



§ 7



Wind bond kuláková




(1) Wind bonding kuláková is built from blocks, stored horizontally

logs, sleepers, etc. The spacing between kulatinou are filling up long

chips or wedges.



(2) Kuláková bond must always be anchored around the perimeter of the mining

works on intact rock or coal pillar.



(3) the thickness of the kulákové fastenings must be at least 1 m.



(4) As the sealing binders are used for different qualities of clay grout up to

After the cement, prosypávání ash, bentonite, and so on.



(5) Kuláková bond with dotěsňuje plaster or thermal spraying.



§ 8



Wind bond combined



Wind bond combined is used to improve the tightness of the

větrních CAP, such as walled plaster or walled

popílkocementová.



§ 9



Peření



(1) the Peření is divided into



and close to) the tight closure of the mine,



b) regulatory control, used for the větrního stream,



c) filter, used in the construction of a swimming CAP or větrních

dykes,



d) support, used in the construction of větrních dam of closure or

rychletuhnoucích materials.



(2) For the construction of the peření is used



and props or vzepřené), firmly construction of mining wood for frame

peření,



(b)) Board lumber, landscape or pažiny for a custom design, peření



(c)) for sealing the latex, asfaltolatexová emulsion, polyurethane foam,

plaster, plastic paste of clay, bentonite, and similarly, cement mortar,

větračské canvas and other materials identified as suitable for use in

Underground ^ 2)



(d)) as the fill material for double peření dusaný clay, loose and

water prolévaný fly ash, limestone powder or another compacted material

designated as suitable for underground use ^ 2)



e) jutovina for peření filter.



(3) Peření must always be anchored around the perimeter of the mining works on the

the intact rock or coal pillar.



§ 10



Rib



(1) there shall be established from the ribbed for non-combustible rock or material intended for

use in the mine.



(2) if the material does not guarantee sufficient tightness against

delays of mining of the winds, must be vyrubaným rib dotěsněno. To

additional materials may be used in accordance with § 9 para. 2 (a). (c)), and (d)).



§ 11



Wind baffle



To build wind counters may only be used only materials or

^ 2) approved for use in the mine, for example, větračské, izopěna, canvas

bags with sand or ash.



§ 12



Wind doors



(1) according to the design of the wind door divided into



and a one,)



(b)) double.



(2) according to the material of the door leaf, the wind door divided into



and) wooden,



(b)), metal,



c) combined.



(3) according to the function and tightness of the wind door divided into



a) insulation,



(b)).



(4) the construction of the větrních door consists of



and) door leaf (wings)



(b)) to the door frame (frame), built into the walls,



(5) in the manufacture of door must be subject to the following conditions:



větrních dimensions of the door) must be chosen so that the dimensions of the light

cross section of transit match the requirements of the specific rules, ^ 3)



(b)) must be provided with the door handle,



c) wing designed for mine workings with locomotive transport must be

equipped with a mirror on both sides of the glass or film,



d) door construction shall be such that the door leaf automatically

shut,



e) full of doors must be attached to the door frame.



(6) for větrních door insulation must be the metal door frame and rail from

brick masonry with a thickness of at least 30 cm. větrních door for regulatory

can be rail and door frame and wood.



(7) For the construction of a brick partition walls, the provisions of section 4. The door frame must be in

the splitter walled up or built to automatically shut and wing

neotvíralo with depression of the winds. The door leaf is suspended after the expiry of the

necessary to acquire the strength of masonry.



section 13 of the



Control object and device



(1) regulatory object and device are



and the door, wind)



b) wind curtain, ^ 4)



(c)) peření with regulatory holes of various sizes,



d) wind dam.



(2) the construction of the regulatory větrních the door is covered by the provisions of § 12.

The size of the aperture is adjusted depending on the size of the depression and

the required volume flow of winds in individual parts.



(3) for the construction of větrních suspensions may only be used materials

^ 2) approved for use in the mines.



(4) the construction of the peření with the regulatory hole is covered by the provisions of section 9.

The size of the aperture is adjusted depending on the size of the depression and

the required volume flow of winds in each mining.



(5) the Wind dam ^ 5) shall be established in the middle of the mining works for lengthwise

Department of vtažného and výdušného větrního stream and subject to

the provisions of § 9.



PART THREE



Hrázové objects



§ 14



Výbuchuvzdornost hrázového object



(1) an object with the dimenzuje on the Výbuchuvzdorný explosion pressure Pv = 0.5 MPa.

Must vote these values of the coefficient of safety:



and) k = 1 for the object specified by the hrázových the door to the isolation of větrních streams

inside the wind area, and for closing the barrier to closing

abandoned mine workings and closures of self-ignition of coal, without the risk of



b) k = 2 for the object specified by the hrázových the door to the isolation of the individual

větrních areas, for closing the barrier to closing the mine workings and

closures of self-ignition coal and danger for the hrázový object that, when

authorisation of mining activities will determine the district mining Office.



(2) the smallest thickness of the dam (L) in meters is determined by the relation

L = 0.9. bmax. the square root of the Pv. to/sigmatl (m),



where k and Pv-shall be determined in accordance with paragraph 1,

sigmatl-minimum compressive strength used for the building

the material in the MPa,

t-the largest of the dimensions of the gross cross-section of the mining works

(height or width) in meters.



§ 15



Closing the barrier



(1) a closing dam, according to the construction and the material used is divided

on



and the brick or brick) blocks,



(b) popílkovou or plavenou)-cement,



(c)) from rychletuhnoucích or other specialty materials,



d) concrete,



e) combined.



(2) for the positioning of the dam are special prescription. ^ 6) it is necessary to

comply with the following conditions:



and mining work in the place) of the construction of the dam must be secured against falling

rocks at a distance of at least 5 m on either side of the dam,



(b)) the distance from the cross, fork or branch of the mining works must

be such as to allow the parties to build a more accessible shut-off

in case of violation of the original dam, dam,



(c) the construction of the dam) in place, it should be removed before construction

all unnecessary pipeline, transport equipment, cables and relaxed

rock or coal.



(3) during the construction of the dam is to be built, and freeze the pipes for the subscription

samples of air and, if necessary, and other special-purpose pipes, for example,

drainage, emergency, filling, inspection, injection, průlezová by

part four.



(4) the Spaces in front of the dam must be kept so that it is to the

secure access for control purposes.



section 16 of the



The closing of the walled dam



(1) For the construction of a masonry dam must be used



and full of bricks) minimum compressive strength of 20 MPa



(b) concrete blocks or slag concrete brick wall) on the minimum compressive strength

20 MPa



(c)), brick or blocks of other materials, if they have been tested on

durability of the dam explosion ^ 2)



(d) cement or lime-cement mortar) on the minimum compressive strength 10

MPA.



(2) the Brick barrier must always be anchored into the indentation around the perimeter of the mining

works. A wedge-shaped or rectangular notched up to intact rock

or coal pillar. The depth of the indentation is determined with regard to the strength of the

rocks at the site of the sinking, but at least 50 cm. In mining with

concrete reinforcement or rigid rock anchor with stud bolts can be dam

recessed to a depth of at least 0.7 m, ceiling and hips for the mining

works on 1 m2 of the mating surfaces of the dam with reinforcements he felt at least 1

Stud bolt. Bolts must be of at least 22 mm in diameter and a length of at least 1

m. Example construction of masonry dam is given in the annex to this order on the

picture No. 1 and no. 2.



(3) the thickness of the masonry dam shall be determined pursuant to § 14 para. 2. the strength of the mortar will

considering freezing after 28 days.



(4) Masonry dam must build on the foundations in the invert of the mining works or

solid rock. The entire outline of the clip must be rinsed off with water and sprinkle

cement milk.



(5) when the dam must be observed during the following conditions:



and come into contact with the outline of the masonry) jams or equipment of the dam must be filled in

without spaces; especially carefully it is necessary to dozdívat the upper part of the closures and,

where this is not possible, it is necessary to fill in all the gaps and cavities with cement

or another injection,



(b)) should be every masonry dam with cement or told you anything;

vápenocementovou mortar on the accessible side.



§ 17



Closing the barrier plavená



(1) for the construction of the dam must be used float



and a mixture of fly ash and water),



(b)) a mixture of fly ash, cement and water; the weight ratio of fly ash and cement

4:1 to 1:1,



c) other materials, if they have been approved for durability tested levees

explosion. ^ 2)



(2) Plavená barrier is established by flooding the area of excavation plavicí


a mixture between a pair of filter peření, in inclined mining where

This incline mine allows one filter peření that

the thickness of the caps is measured under the ceiling of the mining works. Example of construction

float is given in the annex to this order in the figure 3.



(3) Plavenou popílkovou dam can be considered výbuchuvzdornou first

in 2 months after completion of its construction. The minimum thickness of the float

fly ash dam regardless of the shape of the cross section of the mining works determines

as follows:

Gauge works in m2 the minimum thickness of the dam in m

------------------------------------------------------------------

less than 4 4.0

4 to 6 5.0

6 to 6.0

10 and 12 7.0

12 až14 8.0

more než14 10.0

------------------------------------------------------------------



(4) for the construction of the dam on ash float cross-section of the mining works

more than 14 m2 must be built at least two polygonal Struts

located opposite to the direction of the intended explosion, one of which must be

located in the middle of the length of the dam. In the case of the use of wooden figures

the logs must be used with a diameter of at least 25 cm.



(5) the minimum thickness of the float popílkocementové dam is determined under section

14. 2. The strength of popílkocementové fill is determined on the basis of

previous laboratory tests for each recipe. For the calculation of

the dimensioning of the dam is considered a plain pressure strength after 28 days.



(6) in establishing the float of the dam must be complied with the following conditions:



popílková dam plavená) may not be anchored zásekem; reinforcement between the

a pair of peření can be left,



(b)) plavená popílkocementová dam must Moor according to § 16 para. 2,



(c)) peření shall be sufficiently strong to withstand hydrostatic pressure

float the mixture in the space of the dam,



d) filling and discharge Sockets run audit pipes must be the highest point

the passage in the area of the dam (control the pipe above the filling pipe),



e) fly ash dam flooding is done by Napoleon

so as not to refute the peření full hydraulic pressure from the

plavicího pipe; at the top of peření accessible side is usually

leaving the check box that is concluded before completion of the supply

the dam,



f) flooding the dam popílkocementové is carried out without interruption;

If there is a break of longer than 2 hours, the entire area must be

nezatuhlé plavicí mix zapíchnuty iron bars or other armující

material to a depth of at least 0.3 m,



g) completion of the fly ash dam lies in the full-float

doplavování dam, and the most concentrated mixtures.



section 18



Closing the barrier of rychletuhnoucích and special materials



(1) for the construction of the dam of the rychletuhnoucích and special materials may only be

applied plaster or other materials, if they have been tested for durability

the dam explosion. ^ 2)



(2) this dam establishes a gypsum trucked into the space between a pair of

support peření by using the sádrovacího aggregate.



(3) the smallest thickness of the dam is to be determined pursuant to § 14 para. 2. The strength of the

determined on the basis of previous laboratory tests for the individual

mass.



(4) during the construction of the dam of plaster must be complied with the following conditions:



and) gypsum barrier must always be anchored in accordance with § 16 para. 2,



(b) filling in width and control) tubes shall be in the highest places

the dam,



(c)) without breaks and plastering at all times abide by the water

coefficient (the proportion by mass of water and plaster) range from 0.6 to 0.8;

If the break occurs when plastering longer than 10 minutes, it must be in the

the whole surface of nezatuhlé plaster zapíchnuty iron bars or other armující

material to a depth of at least 0.3 m.



§ 19



Closing the dam concrete



(1) For the construction of a concrete dam is used for monolithic concrete class

at a minimum, (B) 15.



(2) the anchoring of the concrete dam is carried out according to § 16 para. 2.



(3) the thickness of the concrete dam is determined according to § 14 para. 2. In the calculation of the

uses the strength of concrete used after 28 days of solidification.



(4) instead supporting peření can use brickwork walls.



section 20



Closing the barrier of the combined



Closing the barrier combined is used to improve the tightness of the

containment dykes.



section 20a



The closing of the dam sack



(1) the closing of the dam sack can be used when playing in the mine accident ^ 6a)

for a quick, výbuchuvzdorné and seal the affected area.



(2) for the construction of a closing dam sack can be used bags

filled with two-thirds of jemnozrnným sand (hereinafter referred to as "sand") or

ash. The weight of the filled sacks may be the most 22 kg.



(3) the dam is being built by the free bags from the rear panel by placing the dam

gradually so that the bags were inter-linked. The spacing between the sack

and for the sides of the cavity of the mining works and around pipes or luten, hrázových

filling up with sand.



(4) the thickness of the dam regardless of the shape of the cross section of the mining works determines

as follows:

----------------------------------------------------------------

Gauge works the minimum thickness of the dam of bags filled with

in m2 sand ash

----------------------------------------------------------------

less than 6 5.0 8.0

6-10 6.0 10.0

10 to 12 7.0 12.0

12 to 14 8.0 14.0.



(5) the barrier must be provided after the toggle construction.

Buckling of the structure is being built from tightly vzepřených to přitlačených posts

forehead dam transverse podvlaky. Podvlaky sucked against the ceiling and

the invert, or against the sides of the mine strut.



(6) the barrier must be sealed. The sealing can be done and předplavením

Dam popílkovou or plaster stopper and an injection of rocks in

around the dam.



section 21



Dotěsňování containment dykes



Each closing the barrier must be tight. The tightness of the dam should be regularly

check. ^ 7) Leaking dam must be sealed.



section 22



Insulation dam



(1) as an insulating barrier, you can use the hrázový object



and according to § 16 of the brick),



(b) the) walled popílkocementový,



c) walled concrete,



d) walled plaster,



(e)) from other materials, if they have been tested for durability of the dam against the

explosion. ^ 2)



(2) in the construction of isolation dam must be subject to the following conditions:



and the thickness of the object) is determined according to section 14, must be used in the calculation

strength of used construction materials under section 16 to 19,



(b)) the way the anchor, and the terms for the construction of the object for

individual construction materials under section 15 to 19,



(c)) use only výbuchuvzdorné equipment according to the part of the fourth object,

that was tested on the durability of the dam explosion ^ 2)



d) door wings and hatches for the conveyor pass through an insulating object

hang up first after 28 days of the completion of the construction.



PART FOUR



Equipment hrázového object



Article 23 of the



Basic provisions



(1) devices and products intended to be incorporated or hook into the hrázového

object are



and hrázové doors and doors) for the hatch,



(b)) hrázová lutna,



(c) channel) for conveyor



(d)) hrázový průvětrník,



e) targeted the pipeline.



(2) the equipment of the hrázového object must be rated for explosion pressure



and 0.5 MPa) for the dam dimensioned according to § 14 para. 1 (b). and)



b) 1.0 MPa for the barrier of the data according to § 14 para. 1 (b). (b)).



(3) devices and products intended to be incorporated or hook into the hrázového

object, with the exception of equipment referred to in paragraph 1 (b). (e)), it must be

tested for resistance to detonation. This equipment must be marked with a



and the manufacturer's mark,)



(b) the nominal value) of pressure to which it was rated

(0.5 MPa or 1.0 MPa),



c) production number and the year of production.



(4) the Hrázové doors, doors for hatch, lutnu, průvětrník and hrázovou

the passage of the conveyor should be placed in the area of the dam so that the

their mutual perpendicular distance (between the outlines of the individual pieces) and

their distance from the gross cross-section of the indentation is not less than 500 mm.

For the purpose of the pipeline with a diameter of up to 300 mm this distance may be

reduced to 300 mm. example of equipment hrázových of objects is given in

the annex to this notice in Figure 4.



section 24



Hrázové doors and hatches



(1) the Hrázové door (door leaf and frame-frame) is subdivided according to the purpose

on hrázové door



and for the transport of materials) (locomotive or hanging Groove)



(b)) for the passage of people,



(c)) for the hatch of the people.



(2) the dimensions of the door must be hrázových typizovány to size

light cross section of transit match the requirements laid down in the specific

Regulation 3) dimensions of the cross section must be at least light a) for pass

1800 x 600 mm people, b) for 800 x 600 people hatch mm rectangular cross-section

or 600 mm diameter round section.



(3) Hrázové around the perimeter of the doors must be attached to the door frame.

Door construction with the exception of the hatch door of the people must be such that the

the door leaf is automatically closed.



(4) the attachment of the door frame in the area of the dam must be in accordance with the instructions

manufacturer. The door leaf is suspended at the earliest after 28 days after their

construction of the hrázového object.



(5) the door leaf door hrázových on tracks for locomotive transport

must be provided with



a) handle and bumper




(b)) or the reflective reflective painting glass on both sides,



(c)) on the gassy coal mines in places where the opening threatens the

for proper ventilation, also signaling their opening in the space provided,

possibly by blocking depending on another object of isolation.



(6) Passes between the door and the frame, the overhead contact line shall be

broken at such a distance to avoid when you open wings to

short.



(7) the door for the passage of the hatch and hatch for people must be provided with the

both sides of the handle and the opening and closing device

the wings of both parties.



(8) the hatch must be anchored in the area of the dam in accordance with the instructions

manufacturer. The height of the bottom edge of the Airlock must be 40 cm to 60 cm above the

počvou mine. On an inaccessible side must not exceed more than 10

cm of the hrázového object.



§ 25



Hrázová lutna



(1) Hrázová lutna must be anchored in the area of the dam in accordance with the

the manufacturer's instructions. The height of the lower edge of the plate ducting must be 40 cm to 60 cm

above the počvou mine. On inaccessible side must not exceed more

than 10 cm from the hrázového object.



(2) construction of fronts hrázové plate ducting must allow the connection of larger

(smaller) hrázové diameter plate ducting and tight closure of the Airlock using

plate or other sealing the hatch.



(3) the dimensions of the light diameter must be at least 600 mm.



section 26



Passage for conveyor



(1) the passage of the conveyor must be built into the dam in accordance with the

the manufacturer's instructions.



(2) Covers the passage for the conveyor belt must be secured in the open position

against unwanted conclusion a safety element according to the manufacturer's instructions.



section 27 of the



Hrázový průvětrník



Hrázový průvětrník security klapu must have a closing of both

party.



section 28



Special-purpose pipes



(1) the sampling Pipe mining is shutting down air on access

side of a device for the sampling of mining pollution.



(2) the Intervention of the pipeline is a metal pipe of minimum diameter of 100 mm.

the access side of the flange must be terminated and blinded so that the

allow the installation of the valve.



(3) the drainage pipe must be accessible side of the closed trap

or discharge Sockets run into the water sump.



(4) the free space of the cable duct must be sealed on both sides

non-combustible material.



(5) the free pipes with a diameter greater than 150 mm in the hrázovém object, which

is not used to the closure of mine workings must be from both sides blind

flange.



(6) All pipes built in closing the dam shall be output to

a distance of at least 2 m behind the dam.



section 28a



Control of hrázových objects



(1) Hrázové objects, including built-in equipment and products (§ 23 para.

1) shall be checked at least once every 14 days.



(2) Hrázové objects must be marked in the table with the number hrázového

object. On the table is characterized by the date of the last inspection and signature

the oily.



PART FIVE



Transitional and final provisions



section 29



Transitional provision



Wind and hrázové objects and equipment hrázových objects that were

made or established before the entry into force of this order, you can

be used until stocks are exhausted or until the end of the life of these

products and objects.



section 30



Exceptions



Czech Mining Authority may, in exceptional cases, grant exemptions from

the provisions of § 3 para. 2 (a). (c)), § 14 para. 1, § 15 para. 2 (a). (b)), and

It's a request together with a draft alternative measures.



section 31



The effectiveness of the



This Decree shall take effect on the date of publication.



President:



Ing. Bartos v.r.



XIII.



Figure 1-example of a masonry dam in the mine workings with steel arc

reinforcement



Figure 2-Example of the dam with a concrete fills in the mine workings with concrete

reinforcement



Figure 3-example of popílkocementové dam of mine workings with steel

ARC reinforcement



Figure 4-example of equipment of the dam and its placement scheme



1)



Decree No. 52/1997 Coll., laying down requirements to ensure

safety and health at work and the safety of operations at

liquidation of main mine workings, as amended by Decree No. 32/2000 Sb.



1A) of section 13 of Act No. 61/1988 Coll. on mining activities, explosives and

the State Mining Administration.



1B) § § 94, paragraph 106. 1, § 131 and 142 to Decree the Czech Mining Authority no.

22/1989 Coll., on health and safety at work and safety

When operating in mining activities and in the activities carried out by mining

way underground, as amended.



2) § 6 para. 1 of Decree No. 22/1989 Coll.



3) § 292 and 296 Decree No. 22/1989 Coll.



4) § 97 of Decree No. 22/1989 Coll.



5) § 99 paragraph 2. 6 Decree No. 22/1989 Coll.



6) § 79, 82, 93, 94, and 106 of Decree No. 22/1989 Coll.



6a) Decree No. 71/2002 Coll. on control of accidents in mines and mining

oil and natural gas.



7) § 106 paragraph. 3 Decree No. 22/1989 Coll.