CN107956475A - A kind of structure and construction method for protecting development work surrounding rock stability - Google Patents
A kind of structure and construction method for protecting development work surrounding rock stability Download PDFInfo
- Publication number
- CN107956475A CN107956475A CN201711332613.5A CN201711332613A CN107956475A CN 107956475 A CN107956475 A CN 107956475A CN 201711332613 A CN201711332613 A CN 201711332613A CN 107956475 A CN107956475 A CN 107956475A
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- China
- Prior art keywords
- relieving roadway
- roadway
- relieving
- main entry
- top plate
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- 239000011435 rock Substances 0.000 title claims abstract description 40
- 238000010276 construction Methods 0.000 title claims abstract description 28
- 238000011161 development Methods 0.000 title claims abstract description 19
- 239000003245 coal Substances 0.000 claims abstract description 33
- 239000002390 adhesive tape Substances 0.000 claims description 12
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000011084 recovery Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000005065 mining Methods 0.000 description 19
- COCAUCFPFHUGAA-MGNBDDOMSA-N n-[3-[(1s,7s)-5-amino-4-thia-6-azabicyclo[5.1.0]oct-5-en-7-yl]-4-fluorophenyl]-5-chloropyridine-2-carboxamide Chemical compound C=1C=C(F)C([C@@]23N=C(SCC[C@@H]2C3)N)=CC=1NC(=O)C1=CC=C(Cl)C=N1 COCAUCFPFHUGAA-MGNBDDOMSA-N 0.000 description 7
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/16—Methods of underground mining; Layouts therefor
- E21C41/18—Methods of underground mining; Layouts therefor for brown or hard coal
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Remote Sensing (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The invention discloses a kind of structure and construction method for protecting development work surrounding rock stability; including the relieving roadway being opened between current stope protection coal pillar border and auxiliary fortune main entry; relieving roadway is connected with the air return way and haulage gate of current stope, and relieving roadway top plate offers presplitting band；Its construction method is：First, the digging position of relieving roadway is determined between the protection coal pillar border of current stope and auxiliary fortune main entry；Relieving roadway is dug along the direction parallel to auxiliary fortune main entry；And two country rock and top plate is helped to carry out supporting it；When relieving roadway, which is constructed, to be completed, top plate presplitting construction is carried out in relieving roadway；Again in the two-port construction fire dam of relieving roadway；Reduce the width needed for main entry protection coal pillar, improve working face recovery ratio, at the same time; relieving roadway protects tunnel jointly with main entry protection coal pillar; the service life in tunnel is improved, maintenance time is saved and fund, the safety and high efficiency to realizing colliery is of great significance.
Description
Technical field
Patent of the present invention belongs to mining influence control technology field in colliery, and in particular to one kind protection development work country rock
The structure and construction method of stability.
Background technology
Deformation of the surrounding rock in tunnel is a kind of common geological disaster, and deformation of the surrounding rock in tunnel can increase difficulty of construction, greatly prolong
Duration, causing the waste of fund increases cost, more severe patient can cause engineering to terminate.In recent years, because of deformation of the surrounding rock in tunnel
Caused production accident repeatedly occurs, and is one of crucial problem for perplexing coal undertaking development.The research of analysis and summary in recent years
Achievement, surrouding rock deformation are broadly divided into three classes：Deformation, exploitation are lived caused by deformation, buried depth caused by rock mass self-strength is low are larger
Deformation caused by dynamic.This three classes surrouding rock deformation can be seen in underground engineering, and resulting roadway with large deformation is also universal
In the presence of.
For main entry as the tunnel for servicing full mine or a mining level, its service life is longer, and is responsible for whole
As soon as a mine or a mining level transport, ventilation, pedestrian, the surrounding rock stability of main entry more it is particularly important that, therefore control
Main entry processed is had great importance and is worth to the safe and efficient of whole mine, continuation exploitation by mining influence.
The content of the invention
To solve the above problems, the present invention provides a kind of structure for protecting development work surrounding rock stability and the side of constructing
Method, weakens main entry by mining influence, improves the distribution of main entry surrouding rock stress, extend the service life of main entry, and then realize mine
Safe and efficient, continuation exploitation.
To reach above-mentioned purpose, the technical solution adopted by the present invention is：A kind of knot for protecting development work surrounding rock stability
Structure, including the relieving roadway being opened between the protection coal pillar border of current stope and auxiliary fortune main entry, relieving roadway perforation are worked as
Preceding stope, and the both ends open of relieving roadway is provided with the fire dam for blocking relieving roadway, edge is unloaded on relieving roadway top plate
Pressure lane trend offers presplitting groove, and presplitting groove runs through current stope.
Relieving roadway is arranged in parallel with auxiliary fortune main entry, return air main entry and adhesive tape main entry.
Relieving roadway is opened at distance protection coal column border 5m~20m, and apart from current stope minery at least
100m。
Presplitting groove needs the caving zone through work at present face top plate.
Relieving roadway is provided with the Simple anchor rod and anchor cable that country rock is helped for supporting roof and two.
A kind of construction method for protecting development work surrounding rock stability structure,
First, the digging position of relieving roadway is determined between the protection coal pillar border of current stope and auxiliary fortune main entry
To put, relieving roadway is opened at distance protection coal column border 5m~20m, and apart from current stope minery at least 100m；
Then, relieving roadway is dug along the direction parallel to auxiliary fortune main entry；When digging relieving roadway, using Simple anchor rod and anchor cable
Country rock and top plate is helped to carry out supporting to the two of relieving roadway；When the current stope of relieving roadway lateral direction penetrating, and two help country rock and
When roof timbering construction is completed, top plate presplitting construction is carried out in relieving roadway；
Finally, move towards to form the presplitting groove through current stope along relieving roadway on relieving roadway top plate, that is, complete
Top plate presplitting is constructed, then the two-port construction fire dam in relieving roadway.
Dig relieving roadway progress synchronous with stope coal work.
Carry out in top plate presplitting construction, the pre- ceasma of top plate of first constructing, then pressure break is carried out to top plate using high pressure water.
Compared with prior art, the present invention at least has the advantages that：Reduce the width needed for main entry protection coal pillar
Degree, improves working face recovery ratio, and the pre- ceasma of top plate is set in relieving roadway, cuts off actual mining towards main entry stress transfer
Layer, the mining induced stress of stope also obtain a degree of release in relieving roadway, meanwhile, relieving roadway and main entry protection coal
Column collective effect reduces return air main entry, adhesive tape main entry, auxiliary fortune main entry by the mining influence of working face, extends return air main entry, glue
Service life with main entry, auxiliary fortune main entry, road maintenance time, fund cost are saved, to realizing that the safe and efficient of colliery is opened
Adopt and be of great significance.
Further, relieving roadway is arranged in parallel with auxiliary fortune main entry, return air main entry and adhesive tape main entry, it is ensured that relieving roadway top plate
After pressure break, when by this working face mining influence, cutting action of the relieving roadway to roof strata mining induced stress transmission is given full play to.
Further, relieving roadway is opened at distance protection coal column border 5m~20m, makes protection coal pillar in stope
With enough supporting roles, away from auxiliary fortune main entry, reduce the unfavorable shadow that relieving roadway digging process vibrations produce auxiliary fortune main entry
Ring.
Further, the Simple anchor rod and anchor cable that country rock is helped for supporting roof and two are provided with relieving roadway, to open
Dig relieving roadway and the digging condition of safety is provided, while avoid the cost of digging relieving roadway.
Further, fire dam has been constructed at both ends in relieving roadway after the setting pre- ceasma of top plate, and relieving roadway is suitable with return air
Groove and haulage gate isolation, while having prevented that personnel from entering relieving roadway, avoid relieving roadway spoil in release from falling into return air suitable
Groove and haulage gate, prevent relieving roadway string wind, leak out and gas gathers.
Further, carry out the relieving roadway after top plate presplitting softening construction and cut off top plate mining induced stress transfer layer, work
Face mining influence stress is released in relieving roadway, weakens influence of the working face mining induced stress to main entry significantly.
Further, dig that relieving roadway is synchronous with stope coal work to carry out, improve it is mechanical used in digging and
Assistant conveyance tunnel and the efficiency of return aircourse.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention.
Fig. 2 constructs the structure diagram after fire dam for relieving roadway of the present invention.
In attached drawing, the auxiliary fortune main entrys of 1-, 2- return air main entrys, 3- adhesive tape main entrys, 4- relieving roadways, 5- main entry protection coal pillars border,
6- stops adopting line, 7- upper curtate haulage gates, 8- air return way, 9- haulage gates, 10- lower curtate air return way, 11- fire dams.
Embodiment
The invention will be further described with example below in conjunction with the accompanying drawings.
Embodying the exemplary embodiments of feature of present invention and advantage will describe in detail in the following description, it should be understood that this
Invention can have various changes in different embodiments, it is neither departed from the scope of the present invention, and it is therein explanation and
Attached drawing is illustrated as being used in itself, and is not used to the limitation present invention.
It is a kind of to protect the structure of development work surrounding rock stability such as Fig. 1, including it is opened in the protection of current stope
Relieving roadway 4 between coal column border 5 and auxiliary fortune main entry 1, relieving roadway 4 penetrates through current stope, and the both ends of relieving roadway 4 are opened
Mouth is provided with the fire dam 11 for blocking relieving roadway 4, moves towards to offer presplitting groove, presplitting along relieving roadway on 4 top plate of relieving roadway
Groove runs through current stope；Relieving roadway 4 is arranged in parallel with auxiliary fortune main entry 1, return air main entry 2 and adhesive tape main entry 3；
As the preferred embodiment of the present invention, relieving roadway 4 is opened at distance protection coal column border 5m~20m, and distance is worked as
Preceding stope minery at least 100m.
Relieving roadway 4 is provided with the Simple anchor rod and anchor cable that country rock is helped for supporting roof and two；Presplitting groove needs to run through
The caving zone of current stope.
The invention also discloses a kind of construction method for protecting development work surrounding rock stability structure：First, returned currently
The digging position of relieving roadway 4 is determined between the protection coal pillar border 5 of mining face and auxiliary fortune main entry 1, relieving roadway 4 is opened in distance
At the 5m~20m of protection coal pillar border, and apart from current stope minery at least 100m；
Then, relieving roadway 4 is dug along the direction parallel to auxiliary fortune main entry 1；When digging relieving roadway 4, using Simple anchor rod and
Anchor cable helps country rock and top plate to carry out supporting to the two of relieving roadway 4；When the current stope of 4 lateral direction penetrating of relieving roadway, and two help
When country rock and roof timbering construction are completed, top plate presplitting construction is carried out in relieving roadway 4；
Finally, move towards to form the presplitting groove through current stope along relieving roadway on 4 top plate of relieving roadway, that is, complete
Top plate presplitting is constructed, then the two-port construction fire dam 11 in relieving roadway 4.
As the preferred embodiment of the present invention, digging relieving roadway 4 is synchronous with stope coal work to carry out；
As shown in Fig. 2, digging relieving roadway 4 is completed, and after the completion of top plate presplitting construction, construct in the two-port of relieving roadway 4
Fire dam 11.
As the preferred embodiment of the invention, carry out in top plate presplitting construction, the pre- ceasma of top plate of first constructing, then using high pressure
Water carries out pressure break to top plate.
In a particular application, whole bank is provided with multiple working faces, the working face and upper curtate each normally exploited
Haulage gate 7, lower curtate air return way 10 are adjacent；Upper curtate haulage gate 7 and air return way 8, fortune are returned along crossheading 9 and lower curtate
Wind crossheading 10 tunnels at the same time respectively, and upper curtate haulage gate 7 and air return way 8 penetrate through, and transports suitable along crossheading 9 and lower curtate return air
If it is provided with dry passage between groove 10 to be penetrated through；Upper curtate fortune along crossheading 7 and the suitable crossheading 9 of fortune respectively with adhesive tape main entry 3 and auxiliary
Fortune main entry 1 connects, and air return way 8 and lower curtate air return way 10 are connected with return air main entry 2 and auxiliary fortune main entry 1 respectively.
Current stope air return way 8, fortune along set between crossheading 9 one with auxiliary fortune main entry 1, return air main entry 2,
The parallel relieving roadway 4 of adhesive tape main entry 3, relieving roadway 4 are arranged in the coal seam between main entry protection coal pillar border 5 and auxiliary fortune main entry,
When tunneling relieving roadway 4, it should be ensured that the position of relieving roadway 4 and the safe distance of working face.In addition, relieving roadway 4, using simple anchor
Bar and cable bolting top plate and two help country rock, the safe construction for ensureing driving and top plate presplitting softening while does not increase supporting
Cost.
As the preferred embodiment of the invention, the digging position of relieving roadway 4 and the distance met head on of current stope
For 100m.
After being softened in relieving roadway 4 using top plate presplitting, construct in relieving roadway 4 and air return way 8,9 connectivity part of fortune crossheading close
Wall 11 is closed, string wind is prevented, leaks out and gas gathers, while avoided personnel from entering relieving roadway 4；As working face is constantly to being pushed forward
Into close to when stopping adopting line 6, the coal column, auxiliary fortune main entry 1, return air main entry 2, adhesive tape main entry 3 in protection coal pillar border 5 are by working face
The stress influence of movable property life is adopted, and uses the relieving roadway 4 after top plate presplitting softening, top plate mining induced stress has been cut off and has transmitted key
Block, working face mining influence stress are significantly discharged in relieving roadway 4, weaken return air main entry 2, adhesive tape main entry 3 and auxiliary
Main entry 1 is transported by the mining influence of the working face, main entry surrounding rock stress distribution law is improved, improves the stabilization of main entry country rock
Property.
Using the structure and construction method of protection development work surrounding rock stability of the present invention, reduce main entry protection coal
Width needed for column, improves the recovery ratio of coal, meanwhile, relieving roadway 4 and 5 collective effect of main entry protection coal pillar border, reduce return air
Main entry 2, adhesive tape main entry 3, auxiliary fortune main entry 1 are extended return air main entry 2, adhesive tape main entry 3, auxiliary fortune by the mining influence of exploitation working face
The service life of main entry 1, reduces destruction of the mining influence to main entry, and then is greatly saved and reprocesses main entry time, fund
Cost, the safety and high efficiency to realizing colliery are of great significance.
Technical scheme is disclosed as above by alternative embodiment.Artisan will appreciate that do not taking off
The change and retouching made from the revealed the scope of the present invention of appended claims of the invention, belong to the right of the present invention
Claimed scope.
Claims (8)
1. a kind of structure for protecting development work surrounding rock stability, it is characterised in that including being opened in current stope
Relieving roadway (4) between protection coal pillar border (5) and auxiliary fortune main entry (1), relieving roadway (4) penetrates through current stope, and unloads
The both ends open of pressure lane (4) is provided with for blocking the fire dams (11) of relieving roadway (4), along relieving roadway on relieving roadway (4) top plate
Trend offers presplitting groove, and presplitting groove runs through current stope.
A kind of 2. structure for protecting development work surrounding rock stability according to claim 1, it is characterised in that relieving roadway
(4) it is arranged in parallel with auxiliary fortune main entry (1), return air main entry (2) and adhesive tape main entry (3).
A kind of 3. structure for protecting development work surrounding rock stability according to claim 1, it is characterised in that relieving roadway
(4) it is opened at distance protection coal column border (5) 5m~20m, and apart from current stope minery at least 100m.
4. a kind of structure for protecting development work surrounding rock stability according to claim 1, it is characterised in that presplitting groove needs
To run through the caving zone of work at present face top plate.
A kind of 5. structure for protecting development work surrounding rock stability according to claim 1, it is characterised in that relieving roadway
(4) Simple anchor rod and anchor cable that country rock is helped for supporting roof and two are provided with.
A kind of 6. construction method for protecting development work surrounding rock stability structure, it is characterised in that
First, opening for relieving roadway (4) is determined between the protection coal pillar border (5) of current stope and auxiliary fortune main entry (1)
Position is dug, relieving roadway (4) is opened at distance protection coal column border (5) 5m~20m, and apart from current stope minery
At least 100m；
Then, along the direction digging relieving roadway (4) parallel to auxiliary fortune main entry (1), when digging relieving roadway (4), using Simple anchor rod
Country rock and top plate is helped to carry out supporting to the two of relieving roadway (4) with anchor cable；When the current stope of relieving roadway (4) lateral direction penetrating,
And two help country rock and roof timbering to construct when completing, and top plate presplitting construction is carried out in relieving roadway (4)；
Finally, move towards to form the presplitting groove through current stope along relieving roadway on relieving roadway (4) top plate, that is, complete top
Plate presplitting is constructed, then the two-port construction fire dam (11) in relieving roadway (4).
A kind of 7. construction method for protecting development work surrounding rock stability structure according to claim 6, it is characterised in that
Dig relieving roadway (4) progress synchronous with stope coal work.
A kind of 8. construction method for protecting development work surrounding rock stability structure according to claim 6, it is characterised in that
Carry out in top plate presplitting construction, the pre- ceasma of top plate of first constructing, then pressure break is carried out to top plate using high pressure water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711332613.5A CN107956475A (en) | 2017-12-13 | 2017-12-13 | A kind of structure and construction method for protecting development work surrounding rock stability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711332613.5A CN107956475A (en) | 2017-12-13 | 2017-12-13 | A kind of structure and construction method for protecting development work surrounding rock stability |
Publications (1)
| Publication Number | Publication Date |
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| CN107956475A true CN107956475A (en) | 2018-04-24 |
Family
ID=61958755
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|---|---|---|---|
| CN201711332613.5A Pending CN107956475A (en) | 2017-12-13 | 2017-12-13 | A kind of structure and construction method for protecting development work surrounding rock stability |
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| CN116122811A (en) * | 2023-02-21 | 2023-05-16 | 中煤科工开采研究院有限公司 | Rock burst pressure relief method for large roadway area |
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