CN109915138A - Spontaneous fire seam cuts top self-contained lane without pillar mining method - Google Patents
Spontaneous fire seam cuts top self-contained lane without pillar mining method Download PDFInfo
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- CN109915138A CN109915138A CN201910233667.9A CN201910233667A CN109915138A CN 109915138 A CN109915138 A CN 109915138A CN 201910233667 A CN201910233667 A CN 201910233667A CN 109915138 A CN109915138 A CN 109915138A
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Abstract
This application involves coal mining technology fields more particularly to a kind of spontaneous fire seam to cut top self-contained lane without pillar mining method comprising following steps: carrying out strengthening supporting in top plate complement constant-resistance anchor cable；Presplit blasting joint-cutting is oriented to goaf side back；Hydraulic prop is set up in temporary support area；The first metal mesh is fixed close to the side in goaf against goaf side arrangement gear cash pillar, and in gear cash pillar at stope rear；It is laid with soft mould bag close to the side in goaf in the first metal mesh, is laid with the second metal mesh close to the side in goaf in soft mould bag, soft mould bag is laid with forward with the Forward synchronization of the coal mining support of working face；Rapid hardening elastic material is perfused into soft mould bag.Cooperate constant-resistance cable bolting using presplitting lancing techniques to weaken roof Stress transmitting, increases the anti-dynamic pressure ability in tunnel；The rapid hardening elastic material that moderate finite deformation will occur is combined with stone-blocking structure, is allowed to realize and is guaranteed the good sealing effect in goaf while compressive strain.
Description
Technical field
This application involves coal mining technology fields more particularly to a kind of spontaneous fire seam to cut top self-contained lane without coal pillar mining
Method.
Background technique
Gob side entry retaining refers to after working face extraction, does not stay and sets protection pillar, will along mined out area edge using certain means
Crossheading maintenance retains on upper section working face, as the lower crossheading of next section working face extraction, opens to realize without coal column
The technology adopted.Due to eliminating section coal pillar, goaf and tunnel is caused to be interconnected, thus will cause such as leak out, dead zone
A series of problems, such as pernicious gas overflows.Especially for spontaneous fire seam, easily made under the action of fresh distinguished and admirable in tunnel
At spontaneous combustion occurs, to seriously threaten the safety in production of mine.
In current edge air gallery technology, realize that the technical solution of goaf isolation there are following several forms:
1, it using roadside packing or constructs sealed concrete wall dead zone is isolated, while safeguarding that lane is stayed in stability of the roadway guarantee
Effect.However roadside packing structure is easy to cause roof pressure concentration to act in filling structure, causes filling malformation broken
It is bad；And conventional containment concrete walls do not have non-deformability, and anti-dynamic pressure ability is weaker, is easy under the influence of dynamic pressure in goaf
Strain cracking generates crack so that goaf is connected to tunnel.For spontaneous fire seam, once roadside packing structure or close
It closes wall to deform destruction, will lead to dead zone and be connected to tunnel, draw the disasters such as spontaneous combustion of coal seam is under fire, pernicious gas overflows, seriously
Ground threatens the security of the lives and property of underground work personnel.Therefore existing edge air gallery technology is not able to satisfy spontaneous fire seam item
Safe working under part.
2, by setting up gear cash wall supporting structure, isolation dead zone is then realized by way of whitewashing or being laid with flexible cloth
Purpose.Stay and spraying chemical material mostly used during lane to come enclosed empty regions, although the chemical spray-up that is formed have it is certain
Deformability, but deformability is weaker, still can deform cracking under strong dynamic pressure perturbation action, to lose dead zone envelope
Close function.Though flexible cloth has certain obturation effect, impact resistance is too poor, easily damages under the influence of dynamic pressure in goaf, because
This technology is not able to satisfy spontaneous fire seam and the dead zone closing during lane is stayed to require, and easily causes biggish security risk, therefore
Which is usually used in the whitewashing sealing of spoil side in stable region after working face, is then difficult to answer for deforming biggish dynamic pressure supporting region
With.
3. some in the prior art using the wall with non-deformability come real for the spontaneous fire seam of a kind of rank
Dead zone is now isolated and realizes supporting purpose, such as by filling high-water material molding, reach after consolidation formed after some strength compared with
Thick wall body structure carries out supporting, although such wall has certain off-load buffer function can only since its intensity is lower
Lesser deformation is adapted to, biggish dynamic pressure can not be adapted to attack.
In existing part spontaneous fire seam, spontaneous combustion prevents fires the phase even lower than one month at one month, needs in time
Close the goaf can not wait into goaf and be closed again after forming stable region, and the dynamic pressure supporting region after adopting carries out in time
The closing in goaf.
Summary of the invention
In order to solve the above-mentioned technical problem, this application provides following technical solutions.
This application provides a kind of spontaneous fire seams to cut top self-contained lane without pillar mining method comprising following steps:
The top plate complement constant-resistance anchor cable of lane section is being stayed to carry out strengthening supporting；
Presplit blasting joint-cutting is oriented to goaf side back；
Hydraulic prop is set up in temporary support area；
At stope rear against goaf side arrangement gear cash pillar, and in the gear cash pillar close to described mined out
The first metal mesh is fixed in the side in area；It is laid with soft mould bag close to the side in the goaf in first metal mesh, described
Soft mould bag is laid with the second metal mesh close to the side in the goaf；The soft mould bag with the coal mining support of working face Forward
Synchronization is laid with forward；
Rapid hardening elastic material is perfused into the soft mould bag laid.
Further, the thickness range after the rapid hardening elastic material solidifies in soft mould bag is 10-150mm.
Further, the rapid hardening elastic material is selected from high water filling material, foamed glue and rapid hardening rubber.
Further, the height of second metal mesh and the soft mould bag exceeds head-room 800-1200mm, exceeds
Part extends to above goaf, and the height of first metal mesh is identical as head-room, first metal mesh, second
Metal mesh and gear cash pillar form stable overall structure.
Further, move towards on direction that successively overlapped that mode extends using multiple soft mould bags along tunnel, adjacent two soft mould
The lap width of bag is 150-250mm.
Further, the gear cash pillar includes that overlapped that two section U-shaped steels, two section U-shaped steels are secondary using two up and down for contractibility
The blue connection of card, the U-shaped steel move towards interval 500mm arrangement along tunnel, and embedment bottom plate is not less than 200mm.
Further, the rapid hardening elastic material is poured into soft mould bag by the injected hole reserved on soft mould bag, soft mould
The corner and edge of bag assist rapid hardening elastic material to flow using manual squeezing mode, so that rapid hardening elastic material after the completion of perfusion
It is uniformly filled in the soft mould bag.
Further, the top plate complement constant-resistance anchor cable of lane section is being stayed to carry out in strengthening supporting step, span width is big when tunnel
When 4.2m, 2~3 row's constant-resistance anchor cables are designed, array pitch is 1.0~1.5m, is connected close to one column constant-resistance anchor cable of joint-cutting side W steel band
It connects.
Further, to goaf side back orientation presplit blasting joint-cutting step in, joint-cutting bore dia be 46~
48mm, distance of the joint-cutting hole apart from lane side are not more than 200mm, and joint-cutting pitch of holes is 450~650mm.
Further, it is set up in hydraulic prop step in temporary support area,
When span length is less than 4m, 2~3 column of hydraulic prop arrangement；
When span length is not less than 4m, 3~4 column of hydraulic prop arrangement；
Hydraulic prop spacing is 600~1000mm, and array pitch is 600~800mm, and every row's monomer sets up a top beam.
Above-mentioned technical proposal provided by the embodiments of the present application is had the advantages that compared with prior art using orientation presplitting
Explosion lancing techniques cooperate constant-resistance cable bolting to weaken roof Stress transmitting, increase the anti-dynamic pressure ability in tunnel；It will occur
The rapid hardening elastic material of moderate finite deformation is combined with stone-blocking structure, is allowed to realize and is guaranteed that goaf is well closed while compressive strain
The purpose of effect, can the goaf in time to dynamic pressure supporting region part close.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows and meets implementation of the invention
Example, and be used to explain the principle of the present invention together with specification.
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, for those of ordinary skill in the art
Speech, without any creative labor, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the pressure gear cash wall supporting structural schematic diagram provided by the present application that allows；
Fig. 2 is constant-resistance anchor cable provided by the present application and joint-cutting hole arrangement；
Fig. 3 is that the application U-shaped steel, metal mesh and soft mould are laid with completion effect picture；
Fig. 4 is that the application finally stays lane effect picture.
In figure:
1, constant-resistance anchor cable；2, cash pillar is kept off；3, the first metal mesh；4, soft mould bag；5, the second metal mesh；6, card is blue；7, it cuts
Slot apertures；8, connecting rod.
Specific embodiment
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application
Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only
The embodiment of the application a part, instead of all the embodiments.Based on the embodiment in the application, ordinary skill people
Member's every other embodiment obtained without making creative work, all should belong to the model of the application protection
It encloses.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so as to embodiments herein described herein.In addition, term " includes " and " tool
Have " and their any deformation, it is intended that cover it is non-exclusive include, for example, containing a series of steps or units
Process, method, system, product or equipment those of are not necessarily limited to be clearly listed step or unit, but may include without clear
Other step or units listing to Chu or intrinsic for these process, methods, product or equipment.
In this application, term " on ", "lower", "inner", " in ", "outside", the orientation of the instructions such as "front", "rear" or position close
System is to be based on the orientation or positional relationship shown in the drawings.These terms are primarily to better describe the application and its implementation
Example, is not intended to limit indicated device, element or component must have particular orientation, or carries out structure with particular orientation
It makes and operates.
Also, above-mentioned part term is other than it can be used to indicate that orientation or positional relationship, it is also possible to for indicating it
His meaning, such as term " on " also are likely used for indicating certain relations of dependence or connection relationship in some cases.For ability
For the those of ordinary skill of domain, the concrete meaning of these terms in this application can be understood as the case may be.
In addition, term " setting ", " connection ", " fixation " shall be understood in a broad sense.For example, " connection " may be a fixed connection,
It is detachably connected or monolithic construction；It can be mechanical connection, or electrical connection；It can be directly connected, or pass through centre
Medium is indirectly connected, or is two connections internal between device, element or component.For ordinary skill
For personnel, the concrete meaning of above-mentioned term in this application can be understood as the case may be.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.1-4 and it is described in detail the application in conjunction with the embodiments below with reference to the accompanying drawings.
The embodiment of the present application provides a kind of spontaneous fire seam and cuts top self-contained lane without pillar mining method comprising following step
It is rapid:
Step 1: the top plate complement constant-resistance anchor cable 1 of lane section is being stayed to carry out strengthening supporting；
Step 2: presplit blasting joint-cutting is oriented to goaf side back, effectively reduces and stays lane roof pressure.Pass through
Stress transfer path between cutting top plate rock beam, makes the tunnel newly formed be in mine pressure distressed zone, while adding in constant-resistance anchor cable
Gu under effect, high stress environment threat is effectively reduced；
Step 3: hydraulic prop is set up in temporary support area；
Step 4: at stope rear against goaf side arrangement gear cash pillar 2, and in gear cash pillar 2 close to adopting
The first metal mesh 3 is fixed in the side of dead zone, soft mould bag 4 is laid with close to the side in goaf in the first metal mesh 3, in soft mould bag 4
It is laid with the second metal mesh 5 close to the side in goaf, soft mould bag 4 is spread forward with the Forward synchronization of the coal mining support of working face
If can be closed in time to part after adopting in time；
Step 5: rapid hardening elastic material is perfused into the soft mould bag 4 laid, rapid hardening elastic material is in soft mould bag
It can slowly consolidate, for closing spoil side.
The characteristics of the embodiment of the present application is easy to appear ignition, spontaneous combustion for spontaneous fire seam devises above-mentioned be directed to easily
The gob-side entry retaining method of spontaneous progress, this method can use CUMULATIVE BLASTING technology cutting roof Stress transmission path, and decrease is adopted
Dead zone influences the dynamic pressure in tunnel；Reinforcement supporting is carried out using constant-resistance anchor cable, increase roadway deformation, which allows, presses characteristic；It is more than enough using energy
Secondary receiving dynamic pressure disturbance and guarantee good airtightness, " U-shaped steel, double-level-metal net, the rapid hardening elastic material in soft mould bag " knot
Structure carries out gear cash and dead zone is isolated, the effect of " depressurize, allow pressure, gear cash, closed " to realize.This method can satisfy it is easy from
Coal-fired layer gob side entry retaining hollow area closed requirement, guarantees the safe working of spontaneous fire seam.
In the above-described embodiments, roof Stress is weakened using orientation presplit blasting lancing techniques cooperation constant-resistance cable bolting
Transmitting increases the anti-dynamic pressure ability in tunnel；The soft mould high-water material and stone-blocking structure phase of moderate finite deformation will occur at the same time
In conjunction with, allowed to realize compressive strain while guarantee the good sealing effect in goaf purpose.As shown in figure 4, with working face
Promote, direct rimrock stone starts to be caving under the action of mine pressure, and impact, squeeze the second metal mesh 5, the first metal mesh 3,
Keep off cash pillar 2 and soft mould bag 4.There is certain deformation in metal mesh and gear cash pillar 2 during extruding, but due to soft mould bag
The particularity of rapid hardening elastic material in 4 and the particularity of stone-blocking structure still may be used although there is certain soft mould bag 4 of deformation
To play good sealing effect.The spoil being finally caving is compacted to form pack wall, in pack wall and gear cash pillar 2, second
Under the clamping action of metal mesh 5 and the first metal mesh 3, hollow area closed structure is finally stablized, thus close the goaf.
In some embodiments, as shown in figures 1 and 3, the height of the second metal mesh 5 and soft mould bag 4 exceeds head-room,
The size exceeded is advisable with 800-1200mm, is extended to above goaf beyond part, the height of the first metal mesh 3 and tunnel
Highly identical, the first metal mesh 3, the second metal mesh 5 and gear cash pillar 2 form stable overall structure, specifically, soft mould bag 4
The second metal mesh 5 is re-layed after laying, the second metal mesh 5 can be banded together with the first metal mesh 3 of top plate portion,
(with designed soft mould bag consistency of thickness) spaced apart between double layer of metal net, and fixed with wires such as iron wires.It is excellent
Choosing, the distance between the first metal mesh 3 and the second metal mesh 5 are 10-150mm, i.e., finally formed rapid hardening elastic material exists
The thickness range of solidification is 10-150mm, and since the structure is without providing protective function, desired strength, can not designed lesser
Thickness adapts to large deformation.After double-level-metal net and soft mould bag 4 are laid with, by the first metal mesh bundled fixed in gear cash pillar
On 2, to keep integrally-built stability.The height of second metal mesh 5 and soft mould bag 4 exceeds head-room, for realizing soft
Sealing between mould bag and top plate, the soft mould bag beyond part are laid on joint-cutting under the supporting role of the second metal mesh at the beginning
Place, the spoil being eventually caving are extruded at joint-cutting, the sealing being formed between top plate.Preferably, the first metal mesh and
Two metal meshes are selected as steel mesh.
It should be noted that rapid hardening elastic material includes but is not limited to high water filling material, foamed glue and rapid hardening rubber.It wants
Seeking rapid hardening elastic material after solidification has certain elasticity, can carry certain deflection, such as high water filling material can
It can choose with being selected as a kind of elasticity-modulus lean concrete, foamed glue disclosed in the patent of invention of Publication No. CN1257846A
For polyurethane foam glue, rapid hardening rubber can choose to spray rapid hardening liquid rubber.
In some embodiments, move towards on direction that successively overlapped that mode extends using multiple soft mould bags 4 along tunnel, it is adjacent
The lap width of two soft mould bags 4 is 150-250mm.The size of existing soft mould bag can be made full use of in this way, completed for tunnel
The demand of interior long range gear cash sealing.Lap width can fully ensure that the sealing of lap-joint in 150-250mm, avoid two
The junction of soft mould bag leaks.The design length of each soft mould bag is preferably the distance that coal mining support promotes every time, can be with
Realize that soft mould bag adopting after frame spreads, more convenient close the goaf.
In some embodiments, as shown in Figure 1, gear cash pillar 2 include contractibility overlapped up and down two section U-shaped steels, two section U
Fashioned iron is connected using two vice cards orchid 6, and U-shaped steel move towards interval 500mm arrangement along tunnel, and embedment bottom plate is not less than 200mm, and with wooden
Chock is fixed, and U-shaped steel is made to keep on the same line, being then laid with the first metal mesh.Cash pillar 2 is kept off as gear cash wall supporting knot
Structure uses two section U-shaped steels to can produce sliding deformation under dynamic pressure disturbance, to absorb energy, have the function of it is good allow pressure,
The constant-resistance anchor cable 1 of top plate cooperate can further weaken after the gear cash pillar 2 of the structure top plate caused by dynamic pressure disturbance rope or
The stress in portion, side is concentrated, and the anti-dynamic pressure ability in tunnel is enhanced, and the failure of top plate anchor cable and positive side wall supporting structure is avoided, to protect
The lane Zheng Cheng effect.Preferably, U-shaped steel is overlapped using two section contractibility of 36U or more, is connected using two vice card orchids, and blue upper lower edge is blocked
Each 50mm in end is overlapped away from U-shaped steel, the lap of splice is greater than 1m, is connected between adjacent U-shaped steel with connecting rod 8, realize gear cash pillar
Stability.
In some embodiments, in step 5, rapid hardening elastic material is poured by the injected hole reserved on soft mould bag 4
In soft mould bag 4, being filled in soft mould bag 4 for rapid hardening uniform elastic, the rapid hardenings such as individual corners and edge bullet are required after the completion of perfusion
Property material be not easy the place flowed into and high-water material need to be assisted to flow using the modes such as manual squeezing, to guarantee filling effect.Together
When need to pay special attention to Rou Modai lap-joint whether occur the changing of the relative positions generate gap, timely processing of finding the problem.
In some embodiments, the top plate complement constant-resistance anchor cable 1 of lane section is being stayed to carry out in strengthening supporting step, when tunnel is net
When width is greater than 4.2m, 2~3 row's constant-resistance anchor cables are designed, array pitch is 1.0~1.5m, close to one column constant-resistance anchor cable W steel of joint-cutting side
Band connection, as shown in Figure 2.The specification of constant-resistance anchor cable includes but is not limited to φ 21.8*13300mm.In step 2, to mined out
Area side back orients in presplit blasting joint-cutting step, and joint-cutting hole 7 diameter is 46~48mm, joint-cutting hole 7 apart from lane side away from
From 200mm is not more than, 7 spacing of joint-cutting hole is 450~650mm, and the angle of joint-cutting orifice angle and perpendicular is preferably 15 °, joint-cutting
Hole depth can be 12000mm.Step 1 and step 2, which are used cooperatively effectively to reduce, stays lane roof pressure.By cutting off top plate
Stress transfer path between rock beam makes the tunnel newly formed be in mine pressure distressed zone, while under constant-resistance anchor cable reinforcement effect,
High stress environment threat is effectively reduced.
In some embodiments, it in step 3, is set up in hydraulic prop step in temporary support area,
When span length is less than 4m, 2~3 column of hydraulic prop arrangement；
When span length is not less than 4m, 3~4 column of hydraulic prop arrangement；
Hydraulic prop spacing is 600~1000mm, and array pitch is 600~800mm, and every row's monomer sets up a top beam.
Technical solution provided by the embodiments of the present application can guarantee good goaf sealing effect while large deformation.
Due to the particularity of high-water material in soft mould bag, the moderate finite deformation of stone-blocking structure can adapt to, without Local Cracking occur, peeling off
Phenomena such as, it is still able to maintain good obturation effect under the multiple dynamic pressure disturbance during staying lane and its multiplexing, is not in part
Situations such as leaking out, at the same time, under the squeezing action of spoil, the high-water material in soft mould bag can be in pack wall and metal mesh
The certain deformation of lower generation is squeezed, high-water material can be filled out preferably from the lesser place flowing of pressure higher ground directional pressure
The gap between pack wall and metal mesh is filled, so as to guarantee dead zone sealing effect well.
It should be noted that according to the gear cash and supporting construction of above-described embodiment can also include other necessary components or
Structure, specific recovery method also may include other necessary steps, and the corresponding position of each structure and connection
Relationship, the mutual timing and control parameter of each step can refer to same device in the prior art and method, do not address knot respectively
Connection relationship, operation and the working principle of structure be for those of ordinary skill in the art it is known, herein no longer in detail
Description.
Section Example is described in a progressive manner in this specification, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The above is only a specific embodiment of the invention, make skilled artisans appreciate that or realizing of the invention.It is right
A variety of modifications of these embodiments will be apparent to one skilled in the art, general original as defined herein
Reason can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it originally will not be limited
It is formed on the embodiments shown herein, and is to fit to consistent with applied principle herein and features of novelty widest
Range.
Claims (10)
1. a kind of spontaneous fire seam cuts top self-contained lane without pillar mining method, which comprises the following steps:
The top plate complement constant-resistance anchor cable (1) of lane section is being stayed to carry out strengthening supporting；
Presplit blasting joint-cutting is oriented to goaf side back；
Hydraulic prop is set up in temporary support area；
At stope rear against goaf side arrangement gear cash pillar (2), and adopted in the gear cash pillar (2) close to described
The first metal mesh (3) are fixed in the side of dead zone, are laid with soft mould bag close to the side in the goaf in first metal mesh (3)
(4), the second metal mesh (5) are laid with close to the side in the goaf in the soft mould bag (4), the soft mould bag (4) is with work
The Forward synchronization for making the coal mining support in face is laid with forward；
Rapid hardening elastic material is perfused into the soft mould bag (4) laid.
2. spontaneous fire seam according to claim 1 cuts top self-contained lane without pillar mining method, which is characterized in that the speed
Thickness range after solidifying elastic material solidifies in soft mould bag is 10-150mm.
3. spontaneous fire seam according to claim 1 cuts top self-contained lane without pillar mining method, which is characterized in that the speed
Solidifying elastic material is selected from high water filling material, foamed glue and rapid hardening rubber.
4. spontaneous fire seam according to claim 1 cuts top self-contained lane without pillar mining method, which is characterized in that described the
The height of two metal meshes (5) and the soft mould bag (4) exceeds head-room 800-1200mm, beyond part to above goaf
Extend, the height of first metal mesh (3) is identical as head-room, first metal mesh (3), the second metal mesh (5) and
It keeps off cash pillar (2) and forms stable overall structure.
5. spontaneous fire seam according to claim 1 cuts top self-contained lane without pillar mining method, which is characterized in that along tunnel
Move towards on direction that successively overlapped that mode extends using multiple soft mould bags (4), the lap width of adjacent two soft mould bag (4) is 150-
250mm。
6. spontaneous fire seam according to claim 1 cuts top self-contained lane without pillar mining method, which is characterized in that the gear
Cash pillar (2) includes contractibility overlapped two section U-shaped steels up and down, and two section U-shaped steels are using two vice cards blue (6) connection, the U-shaped steel
Interval 500mm arrangement is moved towards along tunnel, embedment bottom plate is not less than 200mm.
7. spontaneous fire seam according to claim 1 cuts top self-contained lane without pillar mining method, which is characterized in that the speed
Solidifying elastic material is poured into soft mould bag (4) by the injected hole reserved on soft mould bag (4), the corner and edge of soft mould bag (4)
Rapid hardening elastic material is assisted to flow using manual squeezing mode, so that rapid hardening elastic material is uniformly filled in institute after the completion of perfusion
It states in soft mould bag (4).
8. spontaneous fire seam according to claim 1 cuts top self-contained lane without pillar mining method, which is characterized in that in Liu Xiang
The top plate complement constant-resistance anchor cable (1) of section carries out in strengthening supporting step, and when tunnel span width is greater than 4.2m, 2~3 rows of design are permanent
Anchor cable is hindered, array pitch is 1.0~1.5m, is connected close to one column constant-resistance anchor cable of joint-cutting side W steel band.
9. spontaneous fire seam according to claim 1 cuts top self-contained lane without pillar mining method, which is characterized in that adopting
Dead zone side back orients in presplit blasting joint-cutting step, and joint-cutting hole (7) diameter is 46~48mm, and joint-cutting hole (7) are apart from lane
The distance of side is not more than 200mm, and joint-cutting hole (7) spacing is 450~650mm.
10. spontaneous fire seam according to claim 1 cuts top self-contained lane without pillar mining method, which is characterized in that facing
When supporting area set up hydraulic prop step in,
When span length is less than 4m, 2~3 column of hydraulic prop arrangement；
When span length is not less than 4m, 3~4 column of hydraulic prop arrangement；
Hydraulic prop spacing is 600~1000mm, and array pitch is 600~800mm, and every row's monomer sets up a top beam.
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| CN201910233667.9A CN109915138B (en) | 2019-03-26 | 2019-03-26 | Easy-to-self-fire coal layer top-cutting self-tunneling coal-pillar-free mining method |
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| CN201910233667.9A CN109915138B (en) | 2019-03-26 | 2019-03-26 | Easy-to-self-fire coal layer top-cutting self-tunneling coal-pillar-free mining method |
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| CN110873715A (en) * | 2019-11-11 | 2020-03-10 | 太原理工大学 | Device and method for simulating mechanical action of old goaf slime water on underlying coal rock stratum |
| CN111365045A (en) * | 2020-03-30 | 2020-07-03 | 中铁隧道集团二处有限公司 | Rapid safety protection device after tunnel excavation and construction and protection method thereof |
| CN112065394A (en) * | 2020-09-11 | 2020-12-11 | 中国矿业大学 | Roof cutting and roadway retaining cooperative anchoring and protecting structure and construction method thereof |
| CN112112668A (en) * | 2020-09-25 | 2020-12-22 | 陕西煤业化工技术研究院有限责任公司 | Gob-side entry retaining gob gangue blocking closed structure and manufacturing method thereof |
| CN112576283A (en) * | 2020-12-24 | 2021-03-30 | 河南理工大学 | Gangue blocking column outward-swinging preventing structure based on gob-side entry retaining and construction method thereof |
| CN112610218A (en) * | 2020-12-02 | 2021-04-06 | 中国矿业大学(北京) | Thick coal seam fully-mechanized top-tunneling top-cutting pressure relief automatic roadway forming method |
| CN113073978A (en) * | 2021-04-08 | 2021-07-06 | 中国矿业大学(北京) | Thick coal seam confined concrete pillar roof-cutting roadway coal-pillar-free mining method |
| CN113669063A (en) * | 2021-10-22 | 2021-11-19 | 中国矿业大学(北京) | Roof cutting self-entry surrounding rock control method |
| CN113958321A (en) * | 2021-10-26 | 2022-01-21 | 中煤科工开采研究院有限公司 | Method for retaining roadway along empty retaining wall |
| CN116201578A (en) * | 2023-05-05 | 2023-06-02 | 中国矿业大学(北京) | Roof-cutting pressure-relief self-forming roadway stone-breaking side bidirectional bearing control system |
Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201090245Y (en) * | 2007-09-19 | 2008-07-23 | 中国矿业大学 | Flexible filling bag with vessel |
| WO2008087537A2 (en) * | 2007-01-18 | 2008-07-24 | Skarboevig Nils Mittet | A support net for underground mine supports |
| CN101701526A (en) * | 2009-11-05 | 2010-05-05 | 冀中能源邯郸矿业集团有限公司 | Goaf bag-type packing method |
| CN101725368A (en) * | 2009-11-28 | 2010-06-09 | 山东科技大学 | Thick seam large mining height working face gob-side entry retaining method |
| CN101949302A (en) * | 2010-09-17 | 2011-01-19 | 山东新矿赵官能源有限责任公司 | Dynamic monitoring device of roadway-beside filling body and tunnel roof of gob-side entry and operating method thereof |
| CN102278140A (en) * | 2011-07-05 | 2011-12-14 | 徐州贝壳迈宁矿业科技有限公司 | Gob-side entry retaining method for solid filling coal mining building gangue wall |
| CN102705002A (en) * | 2012-05-12 | 2012-10-03 | 山东科技大学 | Roadside proper yielding unequal combined filling structure of gob-side entry retaining and construction method |
| CN103485820A (en) * | 2013-10-09 | 2014-01-01 | 山东科技大学 | Filling wall body capable of protecting laneway through soft yielding in non-chain-pillar filling mining and construction method thereof |
| CN104018837A (en) * | 2014-06-20 | 2014-09-03 | 中国矿业大学 | Spacing-filling gob-side entry retaining method for treating dinting gangue |
| CN104389605A (en) * | 2014-10-20 | 2015-03-04 | 中国矿业大学 | Cover retracement method of dense steel wire ropes of coal face |
| CN204299617U (en) * | 2014-11-13 | 2015-04-29 | 中国矿业大学 | One is anti-breaks type gob side entry retaining filling air bag |
| CN205349416U (en) * | 2016-02-03 | 2016-06-29 | 山西古县老母坡煤业有限公司 | Simple and easy gob entry device of no wall body |
| CN206220987U (en) * | 2016-09-29 | 2017-06-06 | 山东科技大学 | A kind of isolation of gob side entry retaining lane side and suspension device |
| CN107387164A (en) * | 2017-08-30 | 2017-11-24 | 陕西煤业化工技术研究院有限责任公司 | One kind is without coal pillar mining lane side obturator and its construction method |
| CN206707726U (en) * | 2017-02-23 | 2017-12-05 | 山东建筑大学 | A kind of gob side entry retaining roadside support system |
| CN107725052A (en) * | 2017-10-31 | 2018-02-23 | 中国中煤能源集团有限公司 | One kind, which is adopted, stays integration exploitation gob side entry top plate constant-resistance anchor body beam method for protecting support |
| CN108223006A (en) * | 2018-03-16 | 2018-06-29 | 北京瑞诺安科新能源技术有限公司 | A kind of filling bag body, supporting packed column and construction method |
| CN109098714A (en) * | 2018-09-19 | 2018-12-28 | 三门峡龙王庄煤业有限责任公司 | A kind of soft extremely irregularcoal seam fully mechanized coal face gob-side entry retaining method of high methane three |
| CN109441529A (en) * | 2018-11-22 | 2019-03-08 | 河南力行科创矿山技术开发有限公司 | Filler for mine pillar constant resistance and large deformation film bag and application method |
-
2019
- 2019-03-26 CN CN201910233667.9A patent/CN109915138B/en active Active
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008087537A2 (en) * | 2007-01-18 | 2008-07-24 | Skarboevig Nils Mittet | A support net for underground mine supports |
| CN201090245Y (en) * | 2007-09-19 | 2008-07-23 | 中国矿业大学 | Flexible filling bag with vessel |
| CN101701526A (en) * | 2009-11-05 | 2010-05-05 | 冀中能源邯郸矿业集团有限公司 | Goaf bag-type packing method |
| CN101725368A (en) * | 2009-11-28 | 2010-06-09 | 山东科技大学 | Thick seam large mining height working face gob-side entry retaining method |
| CN101949302A (en) * | 2010-09-17 | 2011-01-19 | 山东新矿赵官能源有限责任公司 | Dynamic monitoring device of roadway-beside filling body and tunnel roof of gob-side entry and operating method thereof |
| CN102278140A (en) * | 2011-07-05 | 2011-12-14 | 徐州贝壳迈宁矿业科技有限公司 | Gob-side entry retaining method for solid filling coal mining building gangue wall |
| CN102705002A (en) * | 2012-05-12 | 2012-10-03 | 山东科技大学 | Roadside proper yielding unequal combined filling structure of gob-side entry retaining and construction method |
| CN103485820A (en) * | 2013-10-09 | 2014-01-01 | 山东科技大学 | Filling wall body capable of protecting laneway through soft yielding in non-chain-pillar filling mining and construction method thereof |
| CN104018837A (en) * | 2014-06-20 | 2014-09-03 | 中国矿业大学 | Spacing-filling gob-side entry retaining method for treating dinting gangue |
| CN104389605A (en) * | 2014-10-20 | 2015-03-04 | 中国矿业大学 | Cover retracement method of dense steel wire ropes of coal face |
| CN204299617U (en) * | 2014-11-13 | 2015-04-29 | 中国矿业大学 | One is anti-breaks type gob side entry retaining filling air bag |
| CN205349416U (en) * | 2016-02-03 | 2016-06-29 | 山西古县老母坡煤业有限公司 | Simple and easy gob entry device of no wall body |
| CN206220987U (en) * | 2016-09-29 | 2017-06-06 | 山东科技大学 | A kind of isolation of gob side entry retaining lane side and suspension device |
| CN206707726U (en) * | 2017-02-23 | 2017-12-05 | 山东建筑大学 | A kind of gob side entry retaining roadside support system |
| CN107387164A (en) * | 2017-08-30 | 2017-11-24 | 陕西煤业化工技术研究院有限责任公司 | One kind is without coal pillar mining lane side obturator and its construction method |
| CN107725052A (en) * | 2017-10-31 | 2018-02-23 | 中国中煤能源集团有限公司 | One kind, which is adopted, stays integration exploitation gob side entry top plate constant-resistance anchor body beam method for protecting support |
| CN108223006A (en) * | 2018-03-16 | 2018-06-29 | 北京瑞诺安科新能源技术有限公司 | A kind of filling bag body, supporting packed column and construction method |
| CN109098714A (en) * | 2018-09-19 | 2018-12-28 | 三门峡龙王庄煤业有限责任公司 | A kind of soft extremely irregularcoal seam fully mechanized coal face gob-side entry retaining method of high methane three |
| CN109441529A (en) * | 2018-11-22 | 2019-03-08 | 河南力行科创矿山技术开发有限公司 | Filler for mine pillar constant resistance and large deformation film bag and application method |
Cited By (13)
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|---|---|---|---|---|
| CN110513110A (en) * | 2019-07-19 | 2019-11-29 | 山东科技大学 | A kind of three-dimensional classification gear cash choke device and method for no coal column self-contained lane |
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| CN112112668A (en) * | 2020-09-25 | 2020-12-22 | 陕西煤业化工技术研究院有限责任公司 | Gob-side entry retaining gob gangue blocking closed structure and manufacturing method thereof |
| CN112610218A (en) * | 2020-12-02 | 2021-04-06 | 中国矿业大学(北京) | Thick coal seam fully-mechanized top-tunneling top-cutting pressure relief automatic roadway forming method |
| CN112610218B (en) * | 2020-12-02 | 2022-05-13 | 中国矿业大学(北京) | Thick coal seam fully-mechanized top-tunneling top-cutting pressure relief automatic roadway forming method |
| CN112576283A (en) * | 2020-12-24 | 2021-03-30 | 河南理工大学 | Gangue blocking column outward-swinging preventing structure based on gob-side entry retaining and construction method thereof |
| CN113073978A (en) * | 2021-04-08 | 2021-07-06 | 中国矿业大学(北京) | Thick coal seam confined concrete pillar roof-cutting roadway coal-pillar-free mining method |
| CN113073978B (en) * | 2021-04-08 | 2022-03-08 | 中国矿业大学(北京) | Thick coal seam confined concrete pillar roof-cutting roadway coal-pillar-free mining method |
| CN113669063A (en) * | 2021-10-22 | 2021-11-19 | 中国矿业大学(北京) | Roof cutting self-entry surrounding rock control method |
| CN113958321A (en) * | 2021-10-26 | 2022-01-21 | 中煤科工开采研究院有限公司 | Method for retaining roadway along empty retaining wall |
| CN116201578A (en) * | 2023-05-05 | 2023-06-02 | 中国矿业大学(北京) | Roof-cutting pressure-relief self-forming roadway stone-breaking side bidirectional bearing control system |
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