CN107083959A - A kind of gob-side entry retaining method - Google Patents
A kind of gob-side entry retaining method Download PDFInfo
- Publication number
- CN107083959A CN107083959A CN201710408222.0A CN201710408222A CN107083959A CN 107083959 A CN107083959 A CN 107083959A CN 201710408222 A CN201710408222 A CN 201710408222A CN 107083959 A CN107083959 A CN 107083959A
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- Prior art keywords
- tunnel
- stope
- gob
- entry retaining
- side entry
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000004567 concrete Substances 0.000 claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 claims abstract description 16
- 238000000605 extraction Methods 0.000 abstract description 8
- 230000008439 repair process Effects 0.000 abstract description 6
- 238000005065 mining Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 4
- 239000003245 coal Substances 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 6
- 239000011435 rock Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000003111 delayed effect Effects 0.000 description 4
- 230000005641 tunneling Effects 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000011178 precast concrete Substances 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 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
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
-
- 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)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Remote Sensing (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The present invention relates to coal-mining technique field, more particularly to a kind of gob-side entry retaining method, comprise the following steps：S1, the first tunnel is tunneled in the side adjacent with the second stope on the first stope, and supporting is carried out to the first tunnel, while the first tunnel close to the second stope the prefabricated lane side in side；S2, before the first stope back production, precrack is carried out to the top plate of the first stope；S3, the second tunnel is tunneled on the second stope close to the side of lane side, and supporting is carried out to the second tunnel.It is big that the present invention solves conventional gob side entry retaining Tunnel Pressure, stress is high, the problem of concrete wall deformation is serious, during a upper working face is tunneled, prefabricated gob-side entry retaining concrete wall in advance, reduce the complex process degree during working face extraction, improve upper working face extraction speed, the conventional secondary tunnel of gob side entry retaining need to be reprocessed, quantities is big, difficulty is high, and the present invention is subsequent work face Xin Jue tunnels, therefore without repair of laneway.
Description
Technical field
The present invention relates to coal-mining technique field, more particularly to a kind of gob-side entry retaining method.
Background technology
Current thick seam large mining height exploitation difficulty is big, and acutely, edge air gallery technology belongs to no coal column and opened mine pressure phenomenon
Technology is adopted, coal face ventilation problem is can effectively solve the problem that, conventional gob-side entry retaining method is in coal-face back production
Period carries out precast concrete wall, and Tunnel Pressure is big after being provided using conventional gob side entry retaining, and stress is high, concrete wall deformation
Seriously, while prefabricated gob-side entry retaining concrete wall and coal-face back production are synchronously carried out, precast concrete complex process, work
Sequence is more, speed is slow, influences the normal back production of coal-face, and coal-face fltting speed is slow, is completed back in a upper working face
After adopting, when carrying out next working face extraction operation, tunnel secondary multiplexing, deformation along empty, it is necessary to repair for 2nd time, quantities is big,
And the yielding destruction of concrete wall, influence the secondary multiplexing in tunnel.
The content of the invention
(1) technical problem to be solved
The technical problem to be solved in the present invention is to solve the concrete wall destructible change therewith of existing gob-side entry retaining method
Shape, and the problem of repair for 2nd time quantities is big is needed during the secondary multiplexing of tunnel.
(2) technical scheme
In order to solve the above-mentioned technical problem, the invention provides a kind of gob-side entry retaining method, comprise the following steps：
S1, the first tunnel is tunneled in the side adjacent with the second stope on the first stope, and to first
Tunnel carry out supporting, while the first tunnel close to the second stope the prefabricated lane side in side；
S2, before the first stope back production, while carrying out precrack to the top plate of the first stope；
S3, tunnels the second tunnel, and carry out supporting to the second tunnel on the second stope close to the side of lane side.
Wherein, the lane side is concrete wall.
Wherein, in step sl, supporting is carried out to the first tunnel by anchor shaft anchor cable.
Wherein, in step s 2, drilled by hydraulic fracturing pressure release and prefabricated split is carried out to the top plate of the first stope
Line.
Wherein, in step s3, supporting is carried out to the second tunnel by anchor shaft anchor cable.
(3) beneficial effect
The above-mentioned technical proposal of the present invention has the following advantages that：Gob-side entry retaining method of the present invention is in the first adjacent back production work
Make to carry out between face and the second stope, during the first tunnelling of the first stope, the first tunnel is carried out
Supporting, carries out tunnel to the first tunnel afterwards and expands side, as the lane side of the second tunnelling of the second stope, while
Constructed before first stope back production at the top plate in the first tunnel, to top plate depths precrack, make the first back production work
Making the delayed top plate of face back production can be caving in time, cut top pressure release, reduce the stress state of lane side, so as to form the edge for unloading branch coupling
Kong Liu lanes method, high pre-stress strength support technology is used in tunnel, is effectively protected back rock integrity, is realized high
Gas Outburst mine without coal column safety and high efficiency.The present invention solves conventional gob side entry retaining Tunnel Pressure greatly, and stress is high, mixes
Coagulate the problem of soil deformation of wall is serious, it is ensured that dash, the safety of pedestrian, new pick tunnel is during tunneling without protrusion-dispelling work
Journey, it is possible to increase high gas and outburst mine tunnelling speed, during a upper working face is tunneled, prefabricated gob side entry retaining is mixed in advance
Solidifying cob wall body, reduces the complex process degree during working face extraction, improves upper working face extraction speed, commonly uses gob side entry retaining
Secondary tunnel need to be reprocessed, and quantities is big, and difficulty is high, and the present invention is subsequent work face Xin Jue tunnels, therefore without repair of laneway.
Except it is described above present invention solves the technical problem that, constitute technical scheme technical characteristic and have this
Outside the advantage that the technical characteristic of a little technical schemes is brought, what other technical characteristics of the invention and these technical characteristics were brought
Advantage, will be further illustrated with reference to accompanying drawing.
Brief description of the drawings
Fig. 1 is the structural representation of gob-side entry retaining method embodiment of the present invention.
In figure：1：First stope；2：Second stope；3：First tunnel；4：Concrete wall；5：Second
Tunnel；6：Hydraulic fracturing pressure release drills；7：Anchor shaft anchor cable.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained on the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
In addition, in the description of the invention, unless otherwise indicated, " multiple ", " many ", " multigroup " be meant that two or
Two or more, " several ", " some ", " some groups " are meant that one or more.
As shown in figure 1, a kind of provided in an embodiment of the present invention 1, gob-side entry retaining method for unloading branch coupling, it is characterised in that：
Comprise the following steps：
S1, the first tunnel 3 is tunneled in the side adjacent with the second stope 2 on the first stope 1, and to the
One tunnel 3 carry out supporting, while the first tunnel 3 close to the second stope 2 the prefabricated lane side in side；
S2, before the back production of the first stope 1, while carrying out precrack to the top plate of the first stope 1；
S3, tunnels the second tunnel 5, and the second tunnel 5 is propped up on the second stope 2 close to the side of lane side
Shield.
Gob-side entry retaining method of the present invention is carried out between adjacent the first stope and the second stope, and first
During first tunnelling of stope, supporting is carried out to the first tunnel, carrying out tunnel to the first tunnel afterwards expands side, makees
For the lane side of the second tunnelling of the second stope, while in the first tunnel before the first stope back production
Constructed at top plate, to top plate depths precrack, the first delayed top plate of stope back production is caving in time, cut top and let out
Pressure, reduces the stress state of lane side, so as to form the gob-side entry retaining method for unloading branch coupling, is propped up in tunnel using high pre-stress strength
Shield technology, is effectively protected back rock integrity, realize high gas and outburst mine without coal column safety and high efficiency.This
Invention solves conventional gob side entry retaining Tunnel Pressure greatly, and stress is high, the problem of concrete wall deformation is serious, it is ensured that tunnel leads to
Wind, the safety of pedestrian, new pick tunnel is during tunneling without protrusion-dispelling engineering, it is possible to increase high gas and outburst mine tunnelling speed
Degree, during a upper working face is tunneled, prefabricated gob-side entry retaining concrete wall in advance, the technique during reducing working face extraction is answered
Miscellaneous degree, improves upper working face extraction speed, and the conventional secondary tunnel of gob side entry retaining need to be reprocessed, and quantities is big, and difficulty is high, this hair
Bright is subsequent work face Xin Jue tunnels, therefore without repair of laneway.
Wherein, the lane side is concrete wall 4.During the first tunnelling, gob side entry retaining is precast in advance and is mixed
Solidifying cob wall body, is used as the lane side of the second tunnelling of the second stope.
Wherein, in step sl, supporting is carried out by 7 pair of first tunnel 3 of anchor shaft anchor cable, the of the first stope
Before one tunnelling, high pre-stress reinforced anchor rod cable bolting is carried out to the first tunnel, in the top plate in the first tunnel and first time
Anchor shaft anchor cable is installed at the coal seam of mining face to fix, back rock integrity is effectively protected, realizes efficient without coal column
Safe working.
Wherein, in step s 2, carried out by the top plate of hydraulic fracturing pressure release 6 pair of first stope 1 of drilling prefabricated
Crackle.In the construction hydraulic fracturing pressure release drilling of the first back, waterpower pressure is passed through to the coal seam top of the first stope
Power precrack, enables the first delayed top plate of stope back production to be caving in time, cuts top pressure release, and release top is pressed in time
Power, reduces the stress state of concrete wall.
Wherein, in step s3, supporting is carried out by 7 pair of second tunnel 5 of anchor shaft anchor cable.Simultaneously in the second stope
The second tunnelling during high pre-stress reinforced anchor rod cable bolting is carried out to the second tunnel, in the top plate in the second tunnel and the
Anchor shaft anchor cable is installed at the coal seam of two stopes to fix, back rock integrity is effectively protected, realizes without coal column
Highly effective and safe is exploited.
In summary, gob-side entry retaining method of the present invention is between adjacent the first stope and the second stope
Carry out, during the first tunnelling of the first stope, supporting is carried out to the first tunnel, afterwards to the first tunnel carry out lane
Road expand side, as the lane side of the second tunnelling of the second stope, at the same before the first stope back production
Constructed at the top plate in the first tunnel, to top plate depths precrack, enable the first delayed top plate of stope back production timely
It is caving, cuts top pressure release, reduce the stress state of lane side, so that the gob-side entry retaining method for unloading branch coupling is formed, in tunnel using high
Prestressing force strength support technology, is effectively protected back rock integrity, realizes pacifying without coal column for high gas and outburst mine
Full high-efficiency mining.The present invention solves conventional gob side entry retaining Tunnel Pressure greatly, and stress is high, and concrete wall deformation is serious to ask
Topic, it is ensured that dash, the safety of pedestrian, new pick tunnel is during tunneling without protrusion-dispelling engineering, it is possible to increase high methane is protruded
Mine laneway driving speed, during a upper working face is tunneled, prefabricated gob-side entry retaining concrete wall, reduces working face and returns in advance
Complex process degree during adopting, improves upper working face extraction speed, and the conventional secondary tunnel of gob side entry retaining need to be reprocessed, quantities
Greatly, difficulty is high, and the present invention is subsequent work face Xin Jue tunnels, therefore without repair of laneway.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (5)
1. a kind of gob-side entry retaining method, it is characterised in that：Comprise the following steps：
S1, the first tunnel is tunneled in the side adjacent with the second stope on the first stope, and to the first tunnel
Carry out supporting, while the first tunnel close to the second stope the prefabricated lane side in side；
S2, before the first stope back production, precrack is carried out to the top plate of the first stope；
S3, tunnels the second tunnel, and carry out supporting to the second tunnel on the second stope close to the side of lane side.
2. gob-side entry retaining method according to claim 1, it is characterised in that：The lane side is concrete wall.
3. gob-side entry retaining method according to claim 1, it is characterised in that：In step sl, by anchor shaft anchor cable to
One tunnel carries out supporting.
4. gob-side entry retaining method according to claim 1, it is characterised in that：In step s 2, hydraulic fracturing pressure release is passed through
Drill and precrack is carried out to the top plate of the first stope.
5. gob-side entry retaining method according to claim 1, it is characterised in that：In step s3, by anchor shaft anchor cable to
Two tunnels carry out supporting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710408222.0A CN107083959A (en) | 2017-06-02 | 2017-06-02 | A kind of gob-side entry retaining method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710408222.0A CN107083959A (en) | 2017-06-02 | 2017-06-02 | A kind of gob-side entry retaining method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107083959A true CN107083959A (en) | 2017-08-22 |
Family
ID=59608231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710408222.0A Pending CN107083959A (en) | 2017-06-02 | 2017-06-02 | A kind of gob-side entry retaining method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107083959A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108547653A (en) * | 2018-05-10 | 2018-09-18 | 天地科技股份有限公司 | A kind of Coupled Rigid-flexible roadway supporting system and method |
| CN109538210A (en) * | 2018-10-17 | 2019-03-29 | 仝矿伟 | A kind of soft extremely irregularcoal seam fully mechanized coal face gob-side entry retaining method of high methane three |
| CN110344831A (en) * | 2019-07-17 | 2019-10-18 | 天地科技股份有限公司 | Top release is cut without coal column along the sky lane self-contained Xiang Liu method |
| CN111720119A (en) * | 2020-07-22 | 2020-09-29 | 天地科技股份有限公司 | Coal mine pillar-free wall-reserving mining method |
| CN113605893A (en) * | 2021-08-26 | 2021-11-05 | 河南理工大学 | Control method for pre-filled completely gob-side entry driving surrounding rock |
| US11299954B2 (en) * | 2018-05-31 | 2022-04-12 | China University Of Mining And Technology | Fracturing relief method for stress concentration of remaining ore pillars in overlying goaf |
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| CN101649744A (en) * | 2009-08-27 | 2010-02-17 | 王晓利 | Device and method for casting concrete continuous walls along gob-side entry retaining by mining working face |
| CN101881167A (en) * | 2010-06-04 | 2010-11-10 | 山东华恒矿业有限公司 | Coal face stump mining method |
| CN102337904A (en) * | 2011-09-09 | 2012-02-01 | 贾民 | Method for retaining gob-side tunnel |
| CN103089298A (en) * | 2013-01-23 | 2013-05-08 | 中国矿业大学 | Structure and method for building side direction multicolumn gob-side entry retaining filling wall body |
| CN103321642A (en) * | 2013-05-06 | 2013-09-25 | 中国矿业大学 | Gob-side entry retaining surrounding rock stabilizing method based on lateral rock stratum pre-splitting control |
| CN104100266A (en) * | 2014-08-04 | 2014-10-15 | 山东科技大学 | Method for preventing gob-side roadway rock burst |
| WO2016112772A1 (en) * | 2015-01-14 | 2016-07-21 | 中国矿业大学 | Thick coal seam large seam height gob-side retained passageway method |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101649744A (en) * | 2009-08-27 | 2010-02-17 | 王晓利 | Device and method for casting concrete continuous walls along gob-side entry retaining by mining working face |
| CN101881167A (en) * | 2010-06-04 | 2010-11-10 | 山东华恒矿业有限公司 | Coal face stump mining method |
| CN102337904A (en) * | 2011-09-09 | 2012-02-01 | 贾民 | Method for retaining gob-side tunnel |
| CN103089298A (en) * | 2013-01-23 | 2013-05-08 | 中国矿业大学 | Structure and method for building side direction multicolumn gob-side entry retaining filling wall body |
| CN103321642A (en) * | 2013-05-06 | 2013-09-25 | 中国矿业大学 | Gob-side entry retaining surrounding rock stabilizing method based on lateral rock stratum pre-splitting control |
| CN104100266A (en) * | 2014-08-04 | 2014-10-15 | 山东科技大学 | Method for preventing gob-side roadway rock burst |
| WO2016112772A1 (en) * | 2015-01-14 | 2016-07-21 | 中国矿业大学 | Thick coal seam large seam height gob-side retained passageway method |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108547653A (en) * | 2018-05-10 | 2018-09-18 | 天地科技股份有限公司 | A kind of Coupled Rigid-flexible roadway supporting system and method |
| US11299954B2 (en) * | 2018-05-31 | 2022-04-12 | China University Of Mining And Technology | Fracturing relief method for stress concentration of remaining ore pillars in overlying goaf |
| CN109538210A (en) * | 2018-10-17 | 2019-03-29 | 仝矿伟 | A kind of soft extremely irregularcoal seam fully mechanized coal face gob-side entry retaining method of high methane three |
| CN110344831A (en) * | 2019-07-17 | 2019-10-18 | 天地科技股份有限公司 | Top release is cut without coal column along the sky lane self-contained Xiang Liu method |
| CN111720119A (en) * | 2020-07-22 | 2020-09-29 | 天地科技股份有限公司 | Coal mine pillar-free wall-reserving mining method |
| CN113605893A (en) * | 2021-08-26 | 2021-11-05 | 河南理工大学 | Control method for pre-filled completely gob-side entry driving surrounding rock |
| CN113605893B (en) * | 2021-08-26 | 2023-11-21 | 河南理工大学 | Control method for pre-filling full gob-side entry driving surrounding rock |
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Application publication date: 20170822 |
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