CN109519191A - A method of prevent fully-mechanized mining working from withdrawing stage adjusting lane excessive deformation - Google Patents
A method of prevent fully-mechanized mining working from withdrawing stage adjusting lane excessive deformation Download PDFInfo
- Publication number
- CN109519191A CN109519191A CN201811220236.0A CN201811220236A CN109519191A CN 109519191 A CN109519191 A CN 109519191A CN 201811220236 A CN201811220236 A CN 201811220236A CN 109519191 A CN109519191 A CN 109519191A
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- China
- Prior art keywords
- lane
- mechanized mining
- mold
- adjusting lane
- mining working
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/14—Layout of tunnels or galleries; Constructional features of tunnels or galleries, not otherwise provided for, e.g. portals, day-light attenuation at tunnel openings
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/005—Props; Chocks, e.g. made of flexible containers filled with backfilling material characterised by the material
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/02—Non-telescopic props
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/58—Devices for setting props or chocks
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
Abstract
A method of prevent fully-mechanized mining working from withdrawing stage adjusting lane excessive deformation, belong to coal mining technology field, it can solve the problems, such as that existing fully-mechanized mining working withdraws the supporting in stage and influences face propulsion speed, the concrete pile that adjusts in lane spacing perfusion certain specification of the present invention in digging, to play a supporting role to adjusting lane inner top panel, supporting location arrangements mode Yao Zhu Yi lookout space it is vacant, it avoids hindering Zheng Chang lookout, supporting will carry out after the completion of adjusting lane and excavating, when working face being made to shift adjusting lane onto, concrete pile has certain supporting intensity, coalcutter can directly be cut when passing through, pile is removed without shutting down.
Description
Technical field
The invention belongs to coal mining technology fields, and in particular to one kind prevents fully-mechanized mining working from withdrawing stage adjusting lane mistake
Spend the method for deformation.
Background technique
With rising year by year for large-scale mine yield, the back production fltting speed of working face is increased dramatically, it is desirable that fully mechanized mining
The working face duration is shorter and shorter, by pervious about one year removal of home once shorten to 1 year twice or thrice more than.Therefore
Shorten fully-mechanized mining working equipment moving time, improves exploiting field connecting rate and fully-mechanized mining equipment Homes Using TV is that modern mine must face
One of problem.
It quickly moves outfit, and cooperates in the 1990s, China starts to introduce external advanced fully-mechanized mining working
Advanced auxiliary lane multichannel withdrawing technique, greatly improved equipment returning speed, improves and withdraw rate.
The key that fully-mechanized mining equipment is rapidly and efficiently withdrawn is that work all runs smooth during guaranteeing to withdraw, and is especially guaranteed comprehensive
The roof and floor of mining face and return channel penetrates through quality, this directly determines the speed that fully-mechanized mining equipment is withdrawn, if fully mechanized mining work
The roof and floor perforation for making face and return channel is smooth, and fully-mechanized mining equipment is easy for withdrawing, and it is also fast to withdraw speed.If fully-mechanized mining working
Out-of-flatness is penetrated through with return channel roof and floor, big step occurs, is just withdrawn to fully-mechanized mining equipment and bring very big difficulty, influence to withdraw
Speed, serious situation may also result in fully-mechanized mining equipment and can not withdraw, while very big security risk is brought during withdrawing.
And guaranteeing that the key of roof and floor perforation quality is adopted the stage at fully mechanized coal face end, coalcutter driver can grasp return channel in time
Top plate fluctuating situation to adjust coal mining machine roller cutting position in time, and then adjusts working face, in existing technology, main
If being excavated in advance in main return channel and adjusting lane, so that coalcutter driver can look at return channel situation from Xiang is adjusted, from
And make adjustment in time, the Zuo Yong Shi due to adjusting lane looks at return channel situation, and in front of working face, in addition to using anchor
Outside rope net supporting, increase the supportings such as individual prop and seriously affect face propulsion speed, feasibility is extremely low, without using supporting then
Roof fall and wall caving and its serious under mining influence, or even adjustment effect can not be played, roof fall wall caving seriously hinders working face to push away
Into, adjust lane if cancelled, there are above-mentioned a series of problems, so, need a kind of new technical solution solve the problems, such as it is this.
Summary of the invention
The present invention provides one aiming at the problem that supporting that existing fully-mechanized mining working withdraws the stage influences face propulsion speed
The method that kind prevents fully-mechanized mining working from withdrawing stage adjusting lane excessive deformation carries out reinforcing branch using cleavable formula concrete pile
Shield, avoiding end from adopting end and adopted etc. influences and generates a series of wall cavings and roof fall accident, and stone rubbish can also be used as wherein one
Kind material, plays the role of refuse reclamation, and concrete pile belongs to cleavable type, can directly cut, shut down without coalcutter etc.
Wait realize the protective effect played in the case where not influencing working face and normally promoting to lane is adjusted.
The present invention adopts the following technical scheme:
The present invention adjusts the concrete pile of spacing perfusion certain specification in lane digging, to play branch to lane inner top panel is adjusted
Support effect, supporting location arrangements mode Yao Zhu Yi lookout space it is vacant, avoid hinder Zheng Chang lookout, supporting will adjust lane open
It is carried out after the completion of digging, when working face being made to shift adjusting lane onto, concrete pile has certain supporting intensity, permissible when coalcutter passes through
It directly cuts, removes pile without shutting down.
A method of it prevents fully-mechanized mining working from withdrawing stage adjusting lane excessive deformation, includes the following steps:
The first step excavates in the main side of main return channel after return channel digging and adjusts lane；
Second step first uses glass fibre reinforced plastics rockbolts and cable bolting after the completion of adjusting lane excavation, after the completion of supporting, from adjusting lane
Corner far from main return channel starts, and arranges that several molds for being used to pour supporting pile, die top are tight along lane is adjusted
Adjacent top plate, the mold are the cylinder that material production is worked out using nylon, and basal diameter is 0.8~1.0m, inside setting glass
Glass fiber, mould upstream are fixed with glass fibre reinforced plastics rockbolts；
Third step, after the completion of mold is arranged, using the concrete mixer being placed in main return channel, the mold filling that stirring is completed
Material successively carries out mold filling since the mold of the corner far from main return channel for adjusting lane；
4th step after mold filling, withdraws from concrete mixer.
The length for adjusting lane is 10~20m, and width is 2.0~5.0m.
1.0~1.5m is divided between adjacent mold.
The mold filling material is cleavable formula concrete material or cement injection material.
The mold filling mode is the mold filling mode of soft mould concrete gob side entry retaining.
Beneficial effects of the present invention are as follows:
The present invention be it is a kind of solve to withdraw the stage in fully-mechanized mining working adjust lane because of position particularity, not can be carried out effective support and
The method for causing wall caving largely and roof fall utilizes cleavable formula concrete well, using the soft mould after repacking, system
It is made cylindrical die, forms concrete pile after filling, which can directly be cut by coalcutter, not influence working face
It is normal to promote, and the intensity of concrete pile can be very good to play a supporting role to top plate, play a protective role to lane is adjusted,
Wall caving and roof fall accident existing for very good solution adjusting lane, support material belong to cleavable profile material, and coalcutter is advanced over
Column is removed without shutting down in journey, can directly cut, reduce clearance time, not influence working face and normally promote, accelerates propulsion speed
Degree, and then accelerate and withdraw speed.
Part spoil waste material can also be used as raw material in the present invention, reduces freight.
Detailed description of the invention
Fig. 1 is that fully-mechanized mining working of the invention withdraws tunnel and adjusts lane arrangement schematic diagram；
Fig. 2 is that the present invention hangs injection molding schematic diagram after mould；
Fig. 3 is schematic top plan view after adjusting lane injection molding of the invention；
Fig. 4 is the sectional view along A-A of Fig. 3；
Wherein: the auxiliary return channel of 1-；2- adjusts lane；3- shunts chamber；Coal column between the lane 4-；The main return channel of 5-；6- haulage gate；
7- air return way；The goaf 8-；The coal seam 9-；10- coal working face；11- section coal pillar；12- transport pipeline；13- concrete stirs
Mix machine；14- supporting pile；15- top plate.
Specific embodiment
In conjunction with attached drawing, the present invention will be further described.
A method of it prevents fully-mechanized mining working from withdrawing stage adjusting lane excessive deformation, includes the following steps:
1. being excavated in the main side of main return channel 5 according to the specific requirement withdrawn after return channel digging and adjusting lane 2, adjusted
The length in section lane 2 is generally 10~20m, the general 2.0~5.0m of width.
2. after the completion of adjusting the excavation of lane 2, first with traditional glass fibre reinforced plastics rockbolts and cable bolting, supporting is after the completion from adjusting
The most the inside corner of lane 2 starts to hang the mold of supporting pile 14, mold use nylon work out material be made basal diameter for 0.8~
The cylinder of 1.0m, inside are pullled using glass fibre, and deformation when avoiding pouring, mould upstream is fixed with glass fibre reinforced plastics rockbolts, mould
Tool top is small as far as possible with 15 gap of top plate, and guarantee connects top rate, is divided into 1.0~1.5m between mold.
3. after hanging mold, concrete mixer 13 is arranged in main return channel 5 (advantageously reduce transport away from
From), after the completion of concrete stirring, using transport pipeline 12 since corner's mold, mold filling is successively carried out, after mold filling process arrives
There is certain pressure intensity, guarantee connects top rate, and specific mold filling mode is according to soft mould concrete gob side entry retaining mold filling mode when the phase
It can.
4. withdrawing from relevant device after mold filling, when working face is shifted onto, directly carry out normally promoting.
External mining cleavable formula concrete material ratio or cement injection material can be used in mold filling material, is not limited to
Concrete as long as supporting intensity can reach supporting effect, and can directly be cut.
Claims (5)
1. a kind of method for preventing fully-mechanized mining working from withdrawing stage adjusting lane excessive deformation, characterized by the following steps:
The first step excavates in the main side of main return channel (5) after return channel digging and adjusts lane (2)；
Second step first uses glass fibre reinforced plastics rockbolts and cable bolting after the completion of adjusting lane (2) excavation, after the completion of supporting, from adjusting lane
(2) the corner far from main return channel starts, and is sequentially arranged along adjusting lane (2) several at equal intervals for pouring supporting
The mold of pile (14), for die top close to top plate (15), the mold is the cylinder that material production is worked out using nylon, bottom surface
Diameter is 0.8~1.0m, and glass fibre is arranged in inside, and mould upstream is fixed with glass fibre reinforced plastics rockbolts；
Third step, using the concrete mixer (13) being placed in main return channel (5), will stir after the completion of mold is arranged
At mold filling material, since adjust lane (2) far from main return channel (5) corner mold, successively carry out mold filling；
4th step after mold filling, withdraws from concrete mixer.
2. a kind of method for preventing fully-mechanized mining working from withdrawing stage adjusting lane excessive deformation according to claim 1, special
Sign is: in the first step, the length for adjusting lane (2) is 10~20m, and width is 2.0~5.0m.
3. a kind of method for preventing fully-mechanized mining working from withdrawing stage adjusting lane excessive deformation according to claim 1, special
Sign is: in second step, between adjacent mold between be divided into 1.0~1.5m.
4. a kind of method for preventing fully-mechanized mining working from withdrawing stage adjusting lane excessive deformation according to claim 1, special
Sign is: in third step, the mold filling material is cleavable formula concrete material or cement injection material.
5. a kind of method for preventing fully-mechanized mining working from withdrawing stage adjusting lane excessive deformation according to claim 1, special
Sign is: in third step, the mold filling mode is the mold filling mode of soft mould concrete gob side entry retaining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811220236.0A CN109519191A (en) | 2018-10-19 | 2018-10-19 | A method of prevent fully-mechanized mining working from withdrawing stage adjusting lane excessive deformation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811220236.0A CN109519191A (en) | 2018-10-19 | 2018-10-19 | A method of prevent fully-mechanized mining working from withdrawing stage adjusting lane excessive deformation |
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| Publication Number | Publication Date |
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| CN109519191A true CN109519191A (en) | 2019-03-26 |
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| CN201811220236.0A Pending CN109519191A (en) | 2018-10-19 | 2018-10-19 | A method of prevent fully-mechanized mining working from withdrawing stage adjusting lane excessive deformation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111472781A (en) * | 2020-05-18 | 2020-07-31 | 新汶矿业集团有限责任公司 | Arrangement and construction method of special roadway for coal mining area working face retraction |
| CN111734413A (en) * | 2020-06-24 | 2020-10-02 | 陈芳 | Method for rapidly recovering working face of inclined thick coal seam |
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| CN103452586A (en) * | 2013-08-28 | 2013-12-18 | 武汉理工大学 | Gob expanding material prestressed filling method and prestressed filling material |
| CN104963688A (en) * | 2015-06-06 | 2015-10-07 | 山东黄金矿业(莱州)有限公司三山岛金矿 | Prevention and control method for falling of pumice at roof and two slopes of stope in medium-long hole mining |
| CN205895313U (en) * | 2016-06-15 | 2017-01-18 | 中国神华能源股份有限公司 | A withdrawing passageway for arranging adopt working face combining |
| CN106930762A (en) * | 2017-03-19 | 2017-07-07 | 南京银茂铅锌矿业有限公司 | A kind of stope filling body slope reinforcement method |
| CN107687348A (en) * | 2017-09-11 | 2018-02-13 | 开滦能源化工股份有限公司吕家坨矿业分公司 | With the method for flexible air-bag processing roof of coal face accident |
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| CN103452586A (en) * | 2013-08-28 | 2013-12-18 | 武汉理工大学 | Gob expanding material prestressed filling method and prestressed filling material |
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| CN205895313U (en) * | 2016-06-15 | 2017-01-18 | 中国神华能源股份有限公司 | A withdrawing passageway for arranging adopt working face combining |
| CN106930762A (en) * | 2017-03-19 | 2017-07-07 | 南京银茂铅锌矿业有限公司 | A kind of stope filling body slope reinforcement method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111472781A (en) * | 2020-05-18 | 2020-07-31 | 新汶矿业集团有限责任公司 | Arrangement and construction method of special roadway for coal mining area working face retraction |
| CN111734413A (en) * | 2020-06-24 | 2020-10-02 | 陈芳 | Method for rapidly recovering working face of inclined thick coal seam |
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Application publication date: 20190326 |
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| RJ01 | Rejection of invention patent application after publication |