CN206190323U - Colliery is fire dam reinforced structure in pit - Google Patents
Colliery is fire dam reinforced structure in pit Download PDFInfo
- Publication number
- CN206190323U CN206190323U CN201621265774.8U CN201621265774U CN206190323U CN 206190323 U CN206190323 U CN 206190323U CN 201621265774 U CN201621265774 U CN 201621265774U CN 206190323 U CN206190323 U CN 206190323U
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- Prior art keywords
- fire dam
- coal mine
- slotting
- underground coal
- ruggedized construction
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- 239000003245 coal Substances 0.000 claims description 33
- 238000010276 construction Methods 0.000 claims description 27
- 239000002689 soil Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 11
- 230000006378 damage Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 6
- 230000002787 reinforcement Effects 0.000 abstract description 6
- 238000009415 formwork Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 231100001261 hazardous Toxicity 0.000 abstract 1
- 230000002262 irrigation Effects 0.000 abstract 1
- 238000003973 irrigation Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- 230000009931 harmful effect Effects 0.000 description 3
- 230000010412 perfusion Effects 0.000 description 3
- 231100000331 toxic Toxicity 0.000 description 3
- 230000002588 toxic effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 235000012907 honey Nutrition 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Landscapes
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The utility model discloses a colliery is fire dam reinforced structure in pit. Colliery is fire dam reinforced structure in pit is including building the yu lianxiang roof and allying oneself with fire dam, the L type wall body between the bottom plate of lane, set up the undercutting on the bottom plate of antithetical couplet lane, L type wall body passes through the fire dam with formwork irrigation concrete forms between the undercutting. The utility model discloses a following technological effect: do not select any rare macromolecular material, low cost not only causes in the pit the water to suffer the pollution when having avoided traditional airtight reinforcement moreover, avoided a large amount of contact macromolecular materials to cause the health harm to the staff simultaneously, the design science uses the cheapest economic cost to reach the effect in optimal shutoff fire dam bottom crack. Not only effectively stop the collecting space area hazardous gas pedestrian tunnel of shoving, can in time discharge collecting space area ponding moreover, both solved the gas leakage problem, solved the problem of leaking simultaneously, had beyond measure economy and safe benefit.
Description
Technical field
The utility model is related to the closed technical field of coal mine down-hole tunnel, and more particularly to a kind of underground coal mine fire dam adds
Fixing structure.
Background technology
The logical goaf closed wall bottom of underground coal mine often occurs the phenomenons such as leak, gas leakage, typically has following aspect former
Cause.
(1) concrete shrinkage produces crack.In cooling, due to gradually radiating, volume produces contraction to concrete；In hardening
During contraction can also be produced due to the evaporation of free moisture and the gelatification of cement gel.Both shrink to work as and are subject to
Periphery anchor pole will produce very big shrinkage tensile stress when constraining, when this stress exceedes the tensile strength of concrete, coagulation
Soil will produce the larger contraction fissure of depth.The more contact position for being distributed in coal side and fire dam in this crack, especially more
Many is distributed in fire dam bottom.
(2) roadway floor is heaved, and crack occurs.After coal-face is pushed through, goaf large area is collapsed, roadway floor
By mining influence, stress concentration is redistributed, and will be located at the closed overhead in connection lane on tunnel, causes closed wall and lane
Road base plate departs from, and crack occurs.
(3) qualitative problems of construction produces crack.Fire dam construction wrong, can produce different cracks.As concrete due to
Hypohydration, can produce desciccation crack；Do not shaken during concrete construction in place, then packing is low honeycomb occurs, forms honey combing
Seam；Kerve debris are not cleaned out before closed bottom casting concrete, causes to connect that stubble is unreal, generation connects batch crack etc..
Above-mentioned various cracks directly turn on closed strong bottom crack, cause goaf to lead directly to mine laneway, and this can give
Mine safety production brings major hidden danger.When crack occurs in fire dam bottom, a large amount of ponding in goaf can be gushed by crack
Enter tunnel, if treatment is not in time, the continuity crack with leak can constantly expand, so as to damage the foundation of fire dam, finally may be used
The breaking-up of whole road fire dam can be caused, hardly imaginable consequence occur.Moreover, if fire dam bottom there is crack not and
When process, goaf accumulation a large amount of toxic and harmfuls can be shoved to tunnel by crack, the life to operating personnel in tunnel
Life safety is caused a significant threat.
In the prior art, when leak, gas leak phenomenon occurs in underground coal mine fire dam bottom, traditional closed reinforcement means
It is to note macromolecular material in former fire dam bear, or directly in former closed outside constructs one again away from former closed certain size
The concrete closed wall in road.
When crack occurs in closed bottom, if solved by noting rare macromolecular material, macromolecular material is not only to well
Lower water pollution is than larger, while and the staff to contacting macromolecular material also has a certain degree of harm；If logical
Cross when the method solution of concrete closed wall together is constructed in former closed outside again, cost is high, causes unnecessary wave
Take.
Therefore, it is highly desirable to overcome drawbacks described above.
Utility model content
In view of this, the utility model provides a kind of underground coal mine fire dam ruggedized construction, it is intended to overcome prior art
In the presence of defect, on the premise of macromolecular material, control coal unit-economy cost is not used, solve fire dam bottom
Crack occur causes the problem of fire dam leak, gas leakage harm shaft production safety and underground employee's life security.
Underground coal mine fire dam ruggedized construction provided by the utility model include be built in connection lane top board and connection lane base plate it
Between fire dam, the fire dam is perpendicular to the lane base plate；Offered parallel to the fire dam on the lane base plate
Slotting, the distance between edge and the fire dam in the slotting near the fire dam are D1, the depth of the slotting
It is H2 to spend, and the width of the slotting is D2；The underground coal mine fire dam ruggedized construction also includes L-type wall, the L-type wall
Formed by the support mold pouring concrete between the fire dam and the slotting；Wherein, the concrete on the lane base plate
It is highly H1, width is D1；Concrete in the slotting is highly H1+H2, and width is D2.
Underground coal mine fire dam ruggedized construction as described above, alternatively, also including return pipe, the return pipe passes through institute
State L-type wall and lead on the lane base plate.
Underground coal mine fire dam ruggedized construction as described above, alternatively, control valve is provided with the return pipe.
Underground coal mine fire dam ruggedized construction as described above, alternatively, the concrete grade is not less than 30.
Underground coal mine fire dam ruggedized construction as described above, alternatively, bottom land and the coal petrography of the slotting connect reality.
Underground coal mine fire dam ruggedized construction provided by the utility model realizes following technique effects.
1. it is somebody's turn to do " L " type fire dam reinforcement means and does not choose any rare macromolecular material, it is not only with low cost, and avoid
Conventional containment causes the underground water body to be polluted when reinforcing, while avoid a large amount of contact macromolecular materials causing to work people
The body harm of member.
2. " L " type fire dam reinforcement means design science is somebody's turn to do, and it is close to reach optimal closure with cheapest financial cost
Close the effect in wall bottom crack.Not only effectively prevent goaf toxic and harmful to be shoved to row by fire dam bottom gap
People tunnel, and can in time be discharged water in gob area by return pipe, fire dam bottom leakage problem has both been solved, while
Fire dam bottom seepy question is solved, with beyond measure economy and safety benefit.
Brief description of the drawings
Preferred embodiment in the utility model will be described in detail by accompanying drawing below, it will help understand of the present utility model
Objects and advantages, wherein:
Fig. 1 is the top view of underground coal mine fire dam ruggedized construction in the utility model embodiment.
Fig. 2 is the left view of underground coal mine fire dam ruggedized construction in the utility model embodiment.
Specific embodiment
The utility model is described in detail with reference to embodiment.Wherein identical parts identical accompanying drawing mark
Note is represented.It should be noted that the word "front", "rear" for being used in description below, "left", "right", "up" and "down" are referred to
Direction in accompanying drawing, word " interior " and " outward " are referred respectively to towards or away from the direction of particular elements geometric center.
Fig. 1 is the top view of underground coal mine fire dam ruggedized construction in the utility model embodiment；Fig. 2 is the utility model
The left view of underground coal mine fire dam ruggedized construction in embodiment.With reference to shown in Fig. 1 and Fig. 2, the utility model embodiment is carried
The underground coal mine fire dam ruggedized construction of confession, including the fire dam 30 between connection lane top board 10 and connection lane base plate 20 is built in, it is described
Fire dam 30 is perpendicular to the lane base plate 20.The slotting 40 parallel to the fire dam is offered on the lane base plate 20,
The bottom land of the slotting 40 preferably connects reality with coal petrography, and the edge in the slotting 40 near the fire dam 30 is closed with described
The distance between wall 30 is D1, and the depth of the slotting 40 is H2, and the width of the slotting 40 is D2；The underground coal mine is closed
Wall ruggedized construction also includes L-type wall 50, and the L-type wall 50 is by the formwork between the fire dam 30 and the slotting 40
Concrete perfusion is formed, and the label of the concrete is preferably no less than 30；Wherein, the concrete on the lane base plate 20 is high
It is H1 to spend, and width is D1；Concrete in the slotting 40 is highly H1+H2, and width is D2.
In a preferred embodiment, for the situation that original closed upper water burst is serious, can be worn on L-type wall 50 and return water
Pipe 60, the return pipe 60 is through the L-type wall and leads on the lane base plate 20, wherein, the return pipe 60
The water of the side of L-type wall 50 positioned at the both sides of the L-type wall 50, can be led to opposite side by two ends respectively.Enter one
Step, is provided with control valve, the flow for controlling water on the return pipe 60.
Can be by following mistake using the construction method of underground coal mine fire dam ruggedized construction provided by the utility model
Cheng Shixian.
1. before constructing, start away from original fire dam D1 positions to carry out slotting, slotting to roadway floor first in Ge Lian lanes
Depth H 2, width D 1, groove is shown in that hard bottom side firmly connects reality with coal petrography.By electric conductor (wire netting, water pipe, cable etc.) before slotting
Disconnect or remove, prevent stray electrical current from importing in enclosing tunnel.
2. after slotting is finished, by groove, debris complete liquidation of the slotting position on closed strong scope inner bottom plating it is clean, see
To real bottom.
3. the formwork on the outside of groove, away from base plate H1, formwork irrigates mixed to closing in the range of preceding D1+D2 to formwork height immediately after finishing
Solidifying soil, concrete perfusion height H1 at base plate, concrete perfusion height H2 at slotting.
4. concrete grade is not less than C30.When pouring wall, wall is consolidated with vibrating head, must not leave it is hollow and
Sand holes, whole wall will disposably be irrigated and finished, to ensure the robustness of wall, tightness, by mould fix tightly after pouring
Gu, mould is reclaimed after concrete solidifies completely.
5. original closed upper water burst is serious, is drawn with return pipe, and install control valve.
Underground coal mine fire dam ruggedized construction provided by the utility model realizes following technique effects.
1. it is somebody's turn to do " L " type fire dam reinforcement means and does not choose any rare macromolecular material, it is not only with low cost, and avoid
Conventional containment causes the underground water body to be polluted when reinforcing, while avoid a large amount of contact macromolecular materials causing to work people
The body harm of member.
2. " L " type fire dam reinforcement means design science is somebody's turn to do, and it is close to reach optimal closure with cheapest financial cost
Close the effect in wall bottom crack.Not only effectively prevent goaf toxic and harmful to be shoved to row by fire dam bottom gap
People tunnel, and can in time be discharged water in gob area by return pipe, fire dam bottom leakage problem has both been solved, while
Fire dam bottom seepy question is solved, with beyond measure economy and safety benefit.
Finally it should be noted that：Above example is only used to illustrate the technical solution of the utility model, rather than its limitations；
Although being described in detail to the utility model with reference to the foregoing embodiments, it will be understood by those within the art that：
It can still modify to the technical scheme described in foregoing embodiments, or which part technical characteristic is carried out etc.
With replacement；And these modifications or replacement, the essence of appropriate technical solution is departed from each embodiment technology of the utility model
The scope of scheme.
Claims (5)
1. a kind of underground coal mine fire dam ruggedized construction, including the fire dam between connection lane top board and connection lane base plate is built in, it is described
Fire dam is perpendicular to the lane base plate；Characterized in that, offering drawing parallel to the fire dam on the lane base plate
Groove, the distance between edge and the fire dam in the slotting near the fire dam are D1, and the depth of the slotting is
H2, the width of the slotting is D2；
The underground coal mine fire dam ruggedized construction also include L-type wall, the L-type wall by the fire dam with it is described
Support mold pouring concrete is formed between slotting；Wherein, the concrete on the lane base plate is highly H1, and width is D1；It is described
Concrete in slotting is highly H1+H2, and width is D2.
2. underground coal mine fire dam ruggedized construction according to claim 1, it is characterised in that described also including return pipe
Return pipe is through the L-type wall and leads on the lane base plate.
3. underground coal mine fire dam ruggedized construction according to claim 2, it is characterised in that be provided with the return pipe
Control valve.
4. the underground coal mine fire dam ruggedized construction according to any one in claim 1-3, it is characterised in that described mixed
Solidifying soil label is not less than 30.
5. the underground coal mine fire dam ruggedized construction according to any one in claim 1-3, it is characterised in that described to draw
The bottom land of groove connects reality with coal petrography.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621265774.8U CN206190323U (en) | 2016-11-22 | 2016-11-22 | Colliery is fire dam reinforced structure in pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621265774.8U CN206190323U (en) | 2016-11-22 | 2016-11-22 | Colliery is fire dam reinforced structure in pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206190323U true CN206190323U (en) | 2017-05-24 |
Family
ID=58724648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621265774.8U Active CN206190323U (en) | 2016-11-22 | 2016-11-22 | Colliery is fire dam reinforced structure in pit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206190323U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115013057A (en) * | 2022-03-28 | 2022-09-06 | 中国矿业大学(北京) | Novel coal mine airtight wall capable of being constructed quickly and construction process thereof |
-
2016
- 2016-11-22 CN CN201621265774.8U patent/CN206190323U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115013057A (en) * | 2022-03-28 | 2022-09-06 | 中国矿业大学(北京) | Novel coal mine airtight wall capable of being constructed quickly and construction process thereof |
| CN115013057B (en) * | 2022-03-28 | 2023-12-12 | 中国矿业大学(北京) | Novel coal mine sealing wall quickly constructed and construction process thereof |
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