CN106988782A - Underground coal mine fire seal construction method - Google Patents
Underground coal mine fire seal construction method Download PDFInfo
- Publication number
- CN106988782A CN106988782A CN201710369797.6A CN201710369797A CN106988782A CN 106988782 A CN106988782 A CN 106988782A CN 201710369797 A CN201710369797 A CN 201710369797A CN 106988782 A CN106988782 A CN 106988782A
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- Prior art keywords
- wall
- slotting
- machine brick
- red machine
- coal mine
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/103—Dams, e.g. for ventilation
Abstract
The invention discloses a kind of underground coal mine fire seal construction method, it includes：Three slottings, respectively the first slotting, the second slotting and the 3rd slotting are dug in the inwall circumference of tunnel；Set red machine brick protection wall and red machine brick to screen the thickness of wall according to drift section, pile up red machine brick shielding wall and red machine brick protection wall respectively in the first slotting, the 3rd slotting；The casting concrete Bone Wall in the second slotting；First filler is filled to the filling bed between concrete Bone Wall and red machine brick protection wall；After the completion of red machine brick protection wall is piled up, the second filler is injected in filling bed, the space in filling bed between the first filler and back is completely filled with.Using the embodiment of the present invention gas in goaf can be avoided to penetrate into pedestrian tunnel.
Description
Technical field
The present invention relates to Coal Mine Fire, and in particular to a kind of underground coal mine fire seal construction method.
Background technology
Underground coal mine fire seal refers to be connected with goaf, leaks out passage for eliminating or reduces the wall of pressure difference of leaking out
Body.The effect of underground coal mine fire seal is, on the one hand, limitation prevents air from flowing into and penetrate into coal body, reduces oxygen
Gas and the contact with pyrophorisity coal body, prevent from causing heterogeneous goaf；On the other hand, toxic and harmful gas in goaf is prevented
Leak into pedestrian tunnel, cause personnel to injure.
At present, the structure of home and abroad colliery down-hole fireproof fire dam is varied.Traditional fire seal, due to wall
There is gap between coal side, or because ore deposit pressure effect wall itself produces crack, cause goaf toxic and harmful gas to lead to
Gap seepage flow is crossed to main entry, staff's life security is threatened.At present, use by various rare high polymer material structures
The usage amount of the fire seal built not only high polymer material is big, and cost is high, and bigger to underground water pollution.
Meanwhile, there is also a certain degree of harm for staff's contact high polymer material.
The content of the invention
In view of this, the present invention proposes a kind of underground coal mine fire seal construction method, seamless between wall and coal side
Gap, can avoid goaf gas from flowing to pedestrian tunnel.
The present invention proposes a kind of underground coal mine fire seal construction method, and it includes：Dug in the inwall circumference of tunnel
Three slottings, respectively the first slotting, the second slotting and the 3rd slotting；Red machine brick protection wall and red machine are set according to drift section
Brick screens the thickness of wall, piles up red machine brick shielding wall and red machine brick protection wall respectively in the first slotting, the 3rd slotting；Second
Casting concrete Bone Wall in slotting；First filler is filled to the filling between concrete Bone Wall and red machine brick protection wall
Layer；After the completion of red machine brick protection wall is piled up, the second filler is injected in filling bed, by the first filler in filling bed
Space between back is completely filled with.
Alternatively, wherein, as drift section area S≤15m2When, red machine brick screens 1 >=500mm of width D of wall, red machine
Brick protects 2 >=750mm of width D of wall；As drift section area S ＞ 15m2When, red machine brick screens 1 >=750mm of width D of wall,
Red machine brick protects 2 >=1000mm of width D of wall.
Alternatively, dug in the inwall circumference of tunnel before three slottings, methods described also includes：By the conduction in tunnel
Body disconnects or removed.
Alternatively, after red machine brick protection wall construction is finished, methods described also includes：Wall is protected to red machine brick and apart from red machine
Top plate, bottom plate, the side wall in tunnel are whitewashed in brick protection wall preset distance, wherein, red machine brick protection wall connects with the 3rd slotting
The full slurries of synapsis spray.
Alternatively, casting concrete Bone Wall includes in the second slotting：In the groove of the end cut, inverted draw cut, kerve of the second slotting
Bottom is constructed row's anchor pole respectively, and anchor pole is circumferentially distributed along the second slotting, and adjacent anchor pole is at a distance of preset space length；The four of second slotting
Also construction has anchor pole respectively on individual corner location；Reinforcing bar and anchor pole are bundled to form concrete reinforcement skeleton；In concrete reinforcement
Reinforced mesh is connected on skeleton, solid power folder net is formed；After geometrical clamp net is installed, casting concrete Bone Wall.
Alternatively, after red machine brick protection wall construction is finished, methods described also includes：Sighting tube is arranged under back
Side, sighting tube is used to observing goaf inside and outside differential pressure, temperature and to goaf gas sample in goaf；Measure pipe is arranged on
Above sighting tube, the measure pipe is used for the slip casting into goaf；The pipe that will turn one's coat is arranged on below sighting tube, and pipe of turning one's coat is exposed to
The end construction of 3rd wall is U-shaped, and pipe of turning one's coat is used to observe water temperature and goaf draining, and carries out water seal using U-tube；Its
In, sighting tube, measure pipe and the Guan Jun that turns one's coat run through the first wall, the second wall, filling bed and the 3rd wall.
Alternatively, wherein, the bottom land and ledge of the first slotting, the second slotting and the 3rd slotting are dug to coal rock layer.
Alternatively, wherein, the thickness of wiping one's face of red machine brick protection wall and red machine brick shielding wall is all higher than being equal to 2cm, red machine brick
Wall and the shirt rim width of red machine brick shielding wall is protected to be more than or equal to 0.2m.
Alternatively, wherein, concrete Bone Wall completes for disposable perfusion, and the shirt rim width of concrete Bone Wall is more than or equal to
0.2m。
Alternatively, wherein, the first slotting, the second slotting and the 3rd slotting be arranged in parallel.
The underground coal mine fire seal construction method that the present invention is provided on the inwall of tunnel by setting the first slotting,
Two slottings and the 3rd slotting, the first wall, the second wall, the 3rd wall are separately positioned in three slottings, can make wall with
It is seamless between the inwall of tunnel；And wall is made up of red machine brick or concrete, intensity is high, will not be caused due to the effect of ore deposit pressure
Wall itself produces crack, and the gas in goaf can be avoided to be permeated by gap between wall and tunnel or wall crack itself
To pedestrian tunnel, guarantee is provided for safety in production.The fire seal only chooses minimal amount of special material, and not only cost is low
It is honest and clean, also underground water body can be avoided to be polluted, it is to avoid a large amount of contact high polymer materials cause harm to the body of staff.
Brief description of the drawings
Fig. 1 is the side view of the underground coal mine fire seal of the embodiment of the present invention.
Fig. 2 is the profile of the slotting of the embodiment of the present invention.
Fig. 3 is the structural representation of the solid power folder net of the embodiment of the present invention.
Fig. 4 is the front view of the underground coal mine fire seal of the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, technical scheme is described in detail.
Fig. 1 shows the side view of the fire seal of the embodiment of the present invention, and it includes the first wall 1, the and of the second wall 2
The first slotting, the second slotting and the 3rd slotting, the first slotting are respectively arranged with 3rd wall 3, the circumference of underworkings inwall
Adjacent with the second slotting, with the second slotting at a predetermined distance, the first wall 1 is located at the first slotting, the second wall 2 for the 3rd slotting
Positioned at the second slotting, the 3rd wall 3 is located at the 3rd slotting, is filling bed 4 between the second wall 2 and the 3rd wall 3.
Wherein, the first wall 1, the 3rd wall 3 are red machine brick wall, and the second wall 2 is concrete Bone Wall.First wall 1
It is adjacent with the second wall 2.In an embodiment of the present invention, the first wall 1 is that red machine brick screens wall, and the 3rd wall 3 is red machine brick
Protect wall.
In an embodiment of the present invention, as drift section area S≤15m2When, 1 >=500mm of width D of the first wall 1,
2 >=750mm of width D of 3rd wall 3.As drift section area S ＞ 15m2When, 1 >=750mm of width D of the first wall 1, the
2 >=1000mm of width D of three walls 3.
In an embodiment of the present invention, the first slotting, the second slotting and the 3rd slotting are be arranged in parallel, and each slotting is wrapped
Kerve, end cut and inverted draw cut (as shown in Figure 2) are included, kerve is located on the bottom plate in tunnel, and end cut is located on the side wall in tunnel, inverted draw cut position
In on the top plate in tunnel.In the present embodiment, kerve depth is 200 ± 10mm, and end cut depth is 500 ± 10mm, inverted draw cut depth
For 300 ± 10mm.The width of first slotting is adapted to the width of the first wall 1, and the width of the second slotting width and the second wall 2 is fitted
Match somebody with somebody, the 3rd slotting is adapted to the width of the 3rd wall 3, wall is fixed in slotting.
In an embodiment of the present invention, for reinforcing wall, the fire seal of the embodiment of the present invention also includes solid power folder
Net 5, with reference to Fig. 1, Gu power folder net 5 is arranged on inside the second wall 2.Gu power folder net 5 includes concrete reinforcement skeleton and bar-mat reinforcement
Piece, concrete reinforcement skeleton is formed by reinforcing bar and anchor pole binding fixation, and reinforced mesh is arranged on concrete reinforcement skeleton.
In an embodiment of the present invention, with reference to Fig. 3, applied respectively in the middle part of the bottom land of the end cut, inverted draw cut, kerve of the second slotting
The row's anchor pole 13 of work one, anchor pole 13 is circumferentially distributed along the second slotting, and adjacent anchor pole 13 is spaced about 1 ± 0.1m, the second slotting
Four corner locations on also respectively construction have anchor pole 13.Anchor pole 13 exposes slotting about 500mm.Reinforcing bar and anchor pole 13 are used into iron
Wire bundle ties up to form concrete reinforcement skeleton.Reinforced mesh is connected on concrete reinforcement skeleton.Reinforced mesh is overlapped with anchor pole, overlap joint
Place is bundled using iron wire and fixed, and forms solid power folder net 5, Gu after power folder net 5 is installed, casting concrete Bone Wall.
In an embodiment of the present invention, anchor pole 13 uses Φ 18 × 2000mm screw-thread steels；Reinforcing bar uses Φ 18mm screw thread
Reinforcing bar；The diameter of reinforced mesh be about 6.5mm, size be 200 × 200mm；The lap of splice of reinforced mesh and anchor pole is about
200mm。
Further, as shown in Figure 1 and Figure 4, sighting tube 11 is provided with fire seal.Sighting tube 11 runs through first
Wall 1, the second wall 2, the wall 3 of filling bed 4 and the 3rd, its bending section exposes to the 3rd wall 3, for observing inside and outside goaf
Pressure difference, temperature and gas in goaf is sampled.The diameter of sighting tube 11 is not less than 25mm.Sighting tube 11 is located at fire prevention
In the range of more than 2/3 height of fire dam.The length that sighting tube 11 is stretched out outside the 3rd wall 3 is about 0.4m, sighting tube 11
The mouth of pipe is provided with valve, is blocked with butter.
Further, the fire seal also include measure pipe 10, measure pipe 10 through the first wall 1, the second wall 2,
The wall 3 of filling bed 4 and the 3rd, exposes to the length about 0.4m of the 3rd wall 3.The mouth of pipe of measure pipe 10 is provided with valve, with Huang
Oil sealing is blocked up.Measure pipe 10 is used for when nature occurs for goaf, and goaf is taken measures, such as slip casting, titanium dioxide
The fireproofing extinguishing materials such as carbon, three-phase froth.The diameter of measure pipe 10 is not less than 100mm.Measure pipe 10 is located at the top of sighting tube 11.Measure
Pipe 10 is arranged on below back at about 300mm.
Further, the fire seal also includes turning one's coat pipe 12, pipe 12 of turning one's coat through the first wall 1, the second wall 2,
The wall 3 of filling bed 4 and the 3rd, exposes to the length about 0.8m of the 3rd wall 3.Pipe 12 of turning one's coat exposes to the end of the 3rd wall 3
Portion's structure is U-shaped.Pipe 12 of turning one's coat is used to observe water temperature and draining, and realizes water seal by U-tube.The diameter of pipe 12 of turning one's coat is not less than
100mm.It is arranged on above roadway floor at about 300mm.
The embodiment of the present invention additionally provides the construction method of above-mentioned underground coal mine fire seal, and it comprises the following steps：
S110, digs three slottings, respectively the first slotting, the second slotting and the 3rd slotting in the inwall circumference of tunnel.
First slotting and the second slotting can be merged into a slotting.The bottom land and ledge of each slotting are required to dig to coal
Rock stratum, that is, dig and arrive coal petrography, to prevent slotting deformation and wall from crack occur.By leading in tunnel before each slotting is dug
Electric body (wire netting, water pipe, cable etc.) disconnects or removed, and prevents stray electrical current from importing in enclosing tunnel.
S120, sets red machine brick to protect wall and red machine brick to screen the thickness of wall, in the first slotting, the 3rd according to drift section
Red machine brick shielding wall and red machine brick protection wall are piled up in slotting respectively.
Red machine brick shielding wall and red machine brick protection wall select qualified red machine brick.During construction, hacking will soak；When piling up, phase
Adjacent perps will stagger, transverse joint level, marshalling；Mortar is full, mortar joint uniformity, no more than 10mm；The wall heart successively uses sand
Slurry is tamped, and notch is tight with connecing top.Shirt rim, polishing pressure must be wiped one's face and be smeared to the wall of red machine brick shielding wall and red machine brick protection wall
Real, free from flaw, again seam and hollow joint, thickness of wiping one's face are not less than 2cm, and shirt rim width is not less than 0.2m.
S130, the casting concrete Bone Wall in the second slotting.
Concrete Bone Wall constructs the concrete for using label to be not less than C30.During casting concrete Bone Wall, with vibration
Rod consolidates wall, must not leave hollow and sand holes, disposably perfusion is finished whole wall, and is left not less than 0.2m width
Shirt rim, to ensure the robustness of wall, tightness.
S140, the first filler is filled to concrete Bone Wall and red machine brick the filling bed 4 protected between wall.
In the present embodiment, the first filler is the mixture of loess and quick lime.The mixing ratio of loess and quick lime
Example is 9:1.While red machine brick protection wall is piled up, side filling filling bed 4.By successively tamping, back is fills up to.
S150, after the completion of red machine brick protection wall is piled up, by minimal amount of second filler 9, (the second filler is selected
Special material, such as ten thousand fills fat Polymer material) injected by noting pipe in filling bed 4, by the first filler in filling bed 4 with
Remaining space between back is completely filled with.
After red machine brick protection wall construction is finished, wall is protected to red machine brick and wall preset distance (such as 6m) is protected apart from red machine brick
Top plate, bottom plate, the side wall in interior tunnel are whitewashed, and shotcrete thickness is about 0.05m.Red machine brick protection wall and the 3rd slotting contact position
Full slurries are sprayed, that is, is sprayed onto after being flushed with tunnel and sprays 0.05m again, to realize preferably sealing effectiveness.Again by sighting tube 11, measure
Pipe 10, pipe 12 of turning one's coat are arranged on precalculated position, complete the setting of fire seal.
More than, technical scheme is described in detail in conjunction with specific embodiments, described specific implementation
Example is used to help understand the thought of the present invention.The derivation that those skilled in the art make on the basis of the specific embodiment of the invention
Fallen within modification within the scope of the present invention.
Claims (10)
1. a kind of underground coal mine fire seal construction method, it is characterised in that including：
Three slottings, respectively the first slotting, the second slotting and the 3rd slotting are dug in the inwall circumference of tunnel；
Set red machine brick protection wall and red machine brick to screen the thickness of wall according to drift section, divide in the first slotting, the 3rd slotting
Red machine brick shielding wall and red machine brick protection wall are not piled up；
The casting concrete Bone Wall in the second slotting；
First filler is filled to the filling bed between concrete Bone Wall and red machine brick protection wall；
After the completion of red machine brick protection wall is piled up, the second filler is injected in filling bed, by the first filling material in filling bed
Space between material and back is completely filled with.
2. underground coal mine fire seal construction method as claimed in claim 1, it is characterised in that wherein, work as drift section
Area S≤15m2When, 1 >=500mm of width D of red machine brick shielding wall, red machine brick protects 2 >=750mm of width D of wall；Work as tunnel
Cross-sectional area S ＞ 15m2When, 1 >=750mm of width D of red machine brick shielding wall, red machine brick protects 2 >=1000mm of width D of wall.
3. underground coal mine fire seal construction method as claimed in claim 1, it is characterised in that in the inwall circumference of tunnel
Dig before three slottings, methods described also includes：
Electric conductor in tunnel is disconnected or removed.
4. underground coal mine fire seal construction method as claimed in claim 1, it is characterised in that red machine brick protection wall construction
After finishing, methods described also includes：
Wall is protected to red machine brick and protects top plate, bottom plate, the side wall in tunnel in wall preset distance to whitewash apart from red machine brick, its
In, red machine brick protection wall and the full slurries of the 3rd slotting contact position spray.
5. underground coal mine fire seal construction method as claimed in claim 1, it is characterised in that poured in the second slotting
Concrete Bone Wall includes：
Constructed respectively row's anchor pole in the bottom land of the end cut, inverted draw cut, kerve of the second slotting, the anchor pole circumference along the second slotting point
Cloth, adjacent anchor pole is at a distance of preset space length；
Also construction has anchor pole respectively on four corner locations of the second slotting；
Reinforcing bar and anchor pole are bundled to form concrete reinforcement skeleton；
Reinforced mesh is connected on concrete reinforcement skeleton, solid power folder net is formed；
After geometrical clamp net is installed, casting concrete Bone Wall.
6. underground coal mine fire seal construction method as claimed in claim 1, it is characterised in that red machine brick protection wall construction
After finishing, methods described also includes：
Sighting tube is arranged on below back, sighting tube is used to observing goaf inside and outside differential pressure, temperature and right in goaf
Goaf gas sample；
Measure pipe is arranged on above sighting tube, the measure pipe is used for the slip casting into goaf；
The pipe that will turn one's coat is arranged on below sighting tube, and the end construction that pipe of turning one's coat exposes to the 3rd wall is U-shaped, and pipe of turning one's coat is used to see
Water temperature and goaf draining are surveyed, and water seal is carried out using U-tube；
Wherein, sighting tube, measure pipe and the Guan Jun that turns one's coat run through the first wall, the second wall, filling bed and the 3rd wall.
7. the underground coal mine fire seal construction method as any one of claim 1-6, it is characterised in that wherein,
The bottom land and ledge of first slotting, the second slotting and the 3rd slotting are dug to coal rock layer.
8. the underground coal mine fire seal construction method as any one of claim 1-6, it is characterised in that wherein,
The thickness of wiping one's face of red machine brick protection wall and red machine brick shielding wall is all higher than being equal to 2cm, red machine brick protection wall and red machine brick shielding wall
Shirt rim width be more than or equal to 0.2m.
9. the underground coal mine fire seal construction method as any one of claim 1-6, it is characterised in that wherein,
Concrete Bone Wall completes for disposable perfusion, and the shirt rim width of concrete Bone Wall is more than or equal to 0.2m.
10. the underground coal mine fire seal construction method as any one of claim 1-6, it is characterised in that wherein,
First slotting, the second slotting and the 3rd slotting be arranged in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710369797.6A CN106988782A (en) | 2017-05-23 | 2017-05-23 | Underground coal mine fire seal construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710369797.6A CN106988782A (en) | 2017-05-23 | 2017-05-23 | Underground coal mine fire seal construction method |
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| CN106988782A true CN106988782A (en) | 2017-07-28 |
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ID=59419983
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| CN201710369797.6A Pending CN106988782A (en) | 2017-05-23 | 2017-05-23 | Underground coal mine fire seal construction method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108331614A (en) * | 2018-01-29 | 2018-07-27 | 大连民族大学 | A kind of mining industry grouting filling dehydration device and method |
| CN109083682A (en) * | 2018-08-28 | 2018-12-25 | 辽宁工程技术大学 | A kind of construction method of mine working antiseepage high intensity fire dam |
| CN110017167A (en) * | 2019-04-22 | 2019-07-16 | 安徽佳泰矿业科技有限公司 | A kind of coal mine explosion-proof fire dam and its construction method |
| CN111119997A (en) * | 2019-12-17 | 2020-05-08 | 中国矿业大学(北京) | Waterproof partition wall in advance of colliery rapid prototyping in pit |
| CN112228153A (en) * | 2020-09-04 | 2021-01-15 | 贵州大学 | Protective wall for preventing coal and gas from being extruded |
| CN113931692A (en) * | 2021-11-01 | 2022-01-14 | 太原理工大学 | Construction method of rapid airtight wall for coal mine emergency rescue |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN110017167A (en) * | 2019-04-22 | 2019-07-16 | 安徽佳泰矿业科技有限公司 | A kind of coal mine explosion-proof fire dam and its construction method |
| CN111119997A (en) * | 2019-12-17 | 2020-05-08 | 中国矿业大学(北京) | Waterproof partition wall in advance of colliery rapid prototyping in pit |
| CN112228153A (en) * | 2020-09-04 | 2021-01-15 | 贵州大学 | Protective wall for preventing coal and gas from being extruded |
| CN113931692A (en) * | 2021-11-01 | 2022-01-14 | 太原理工大学 | Construction method of rapid airtight wall for coal mine emergency rescue |
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