CN103628911B - Work plane segmented gob-side entry retaining method is adopted/put to a kind of combining - Google Patents

Work plane segmented gob-side entry retaining method is adopted/put to a kind of combining Download PDF

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Publication number
CN103628911B
CN103628911B CN201310649391.5A CN201310649391A CN103628911B CN 103628911 B CN103628911 B CN 103628911B CN 201310649391 A CN201310649391 A CN 201310649391A CN 103628911 B CN103628911 B CN 103628911B
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China
Prior art keywords
gob
steel mesh
side entry
entry retaining
mesh reinforcement
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Expired - Fee Related
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CN201310649391.5A
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CN103628911A (en
Inventor
陈勇
柏建彪
王襄禹
赵地杰
张自政
袁龙飞
马长乐
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China University of Mining and Technology CUMT
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China University of Mining and Technology CUMT
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Expired - Fee Related legal-status Critical Current
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Abstract

Work plane segmented gob-side entry retaining method is adopted/put to a kind of combining, and belongs to mine support field.Be included in stope both sides to arrange air intake lane and return airway, stay between air intake lane, outer ring and outer ring return airway and establish protection pillar, further comprising the steps of: between the end hydraulic support of stope or at top board place, end hydraulic support rear strengthening supporting; At end hydraulic support rear, reinforcement placing net assists obturation shaping, and filling bag hung by steel mesh reinforcement, and arranges hydraulic prop in steel mesh reinforcement periphery; The high-water material slurries mixed are poured in the filling bag of hanging in steel mesh reinforcement, after waiting filling grout cures, remove hydraulic prop, obturation is reinforced, complete the construction of filling wall; The tunnel at return air connection roadway rear portion gob side entry retaining and rear and connection roadway are filled airtight; Its technique is simple, convenient construction, workman easily grasps, obturation supporting capacity is high, section large, down-hole assistant conveyance amount is little and security reliability is high.

Description

Work plane segmented gob-side entry retaining method is adopted/put to a kind of combining
Technical field
The present invention relates to a kind of gob-side entry retaining method, work plane segmented gob-side entry retaining method is adopted/put to especially a kind of interim or the comprehensive of permanent support in down-hole that be applicable to.
Background technology
At present, to the improvement of gas be generally first take out adopt afterwards, the comprehensive regulation mode such as Mining and pumping, but the coal seam that, gas bearing capacity strong for adsorptivity is large, the method of extraction is adopted to need the longer time, often affect Coal Face Replacement Schedule, some highly gassy mines adopt double-U-shaped method of ventilation, increase air distribution amount, reduce face upper corner angle and air return way gas density, reach the target of safe working.
Exceed standard for avoiding face upper corner angle and air return way gas, need after work plane is adopted, section air return way of between work plane rear to connection roadway to be remained, gas bearing capacity in shunting air return way, when the advance of the face is to next connection roadway, the connection roadway at rear, airtight original goaf, open next connection roadway, namely the tunnel retained between two connection roadways finishes the work.The normal grillage that adopts carried out protecting lane in the past, and cause mine timber consumption large, not only stay lane cost greatly, not environmentally, and grillage belongs to inflammable supporting product, labor strength is large, assistant conveyance workload is large, speed of application is slow; Meanwhile, under rear, goaf air return way top board rotates sinking effect, easily there is unstable failure in the grillage that supporting intensity is lower, and lane is stayed in blocking, affects gas at upper corner to Wa Pai lane smooth discharge.
Summary of the invention
The object of the invention is the weak point overcome in prior art, provide a kind of construct simple, mechanization degree is high, the high-water material obturation little, enabling capabilities is large, good in economic efficiency that takes up room constructs segmented gob side entry retaining.
For realizing above-mentioned technical purpose, of the present invention combine adopt/put work plane segmented gob-side entry retaining method be included in stope both sides arrange air intake lane and return airway, stay between air intake lane, outer ring and outer ring return airway and establish protection pillar, it is further comprising the steps of:
A. in coal mine down-hole tunnel with the propelling of stope, between the end hydraulic support of stope or at top board place, end hydraulic support rear, squeeze into anchor pole or anchor cable;
B. assist obturation shaping at end hydraulic support rear reinforcement placing net and reinforce obturation, filling bag hung by steel mesh reinforcement, and many hydraulic props are set in steel mesh reinforcement periphery;
C. the high-water material slurries mixed are poured in the filling bag of hanging in steel mesh reinforcement, after waiting filling grout cures, remove hydraulic prop, with Counter-pulled bolts, obturation is reinforced, complete the construction of 1 buttress filling wall;
D. repeat step a, b, c, complete continuous print filled wall;
E. the gob side entry retaining at 1 ~ 2m place, return air connection roadway rear portion and the tunnel at rear and connection roadway are filled airtight;
F., when stope pushes through next connection roadway, steps d is repeated.
The spacing of described connection roadway is 40 ~ 100m; Described steel mesh reinforcement network size is 40 ~ 100mm, and the diameter of steel mesh reinforcement reinforcing bar is 4 ~ 8mm; Described Counter-pulled bolts diameter is 18 ~ 26mm; Described filling bag adopts filling bag that is fire-retardant, anti-static material.
Advantageous Effects: work plane segmented gob-side entry retaining method is adopted/put to of the present invention combining, the high-water material slurries mixed are used to pour in the filling bag of hanging in steel mesh reinforcement, Deng forming filling wall after filling grout cures, and use Counter-pulled bolts to reinforce obturation, its technique is simple, convenient construction, workman easily grasps, obturation supporting capacity is high, section large, down-hole assistant conveyance amount is little and security reliability is high, has practicality widely in the art.
Accompanying drawing explanation
Fig. 1 is the comprehensive exemplary construction schematic diagram adopting/put work plane segmented gob side entry retaining of the present invention.
In figure: 1-hydraulic support, 2-air intake lane, air intake lane, 3-outer ring, 4-goaf, 5-filled wall, 6-protection pillar, 7-outer ring return airway, 8-return airway, 9-fire dam, 10-filling bag, 11-hydraulic prop, 12-steel mesh reinforcement, 13-connection roadway, 14-airtight partition wall.
Detailed description of the invention
Below in conjunction with accompanying drawing, one embodiment of the present of invention are described in further detail:
As shown in Figure 1, work plane segmented gob-side entry retaining method is adopted/put to of the present invention combining, be included in stope both sides and arrange air intake lane 2 and return airway 8, air intake lane, outer ring 3 and outer ring return airway 7, stay between return airway 8 and outer ring return airway 7 and establish protection pillar 6, further comprising the steps of:
A. in coal mine down-hole tunnel with the propelling of stope, between the end hydraulic support 1 of stope or at top board place, end hydraulic support 1 rear, squeeze into anchor pole or anchor cable;
B. assist obturation shaping at end hydraulic support rear reinforcement placing net 12 and reinforce obturation, steel mesh reinforcement 12 is hung filling bag 10, and many hydraulic props 11 are set in steel mesh reinforcement 12 periphery, the network size of described steel mesh reinforcement 12 is 40 ~ 100mm, and the diameter of steel mesh reinforcement 12 reinforcing bar is 4 ~ 8mm;
C. the high-water material slurries mixed are poured in the filling bag 10 of hanging in steel mesh reinforcement, after filling grout cures, remove hydraulic prop 11, with Counter-pulled bolts, obturation is reinforced, complete the construction of 1 buttress filling wall, described Counter-pulled bolts diameter is 18 ~ 26mm; Described filling bag adopts filling bag that is fire-retardant, anti-static material;
D. repeat step a, b, c, complete continuous print filled wall 5;
E. the gob side entry retaining at 1 ~ 2m place, return air connection roadway 13 rear portion and the tunnel at rear and airtight partition wall 14 are filled airtight; The spacing of described connection roadway 13 is 40 ~ 100m; The centre of this connection roadway 13 is provided with fire dam 9, connection roadway 13 near work plane opens fire dam 9, dirt is flowed through connection roadway 13 and enter outer ring return airway 7, form the ventilation system that two enter twice, reduce the gas bearing capacity in face upper corner angle gas bearing capacity and shunting return airway 8;
F., when stope pushes through next connection roadway 13, steps d is repeated.
Connection roadway 13 near work plane opens fire dam 9, dirt is flowed through connection roadway 13 and enters outer ring return airway 7, forms the ventilation system that two enter twice, reduces the gas bearing capacity in face upper corner angle gas bearing capacity and shunting return airway 8.

Claims (4)

1. one kind combine adopt/put work plane segmented gob-side entry retaining method, be included in stope both sides to arrange air intake lane (2) and return airway (8), stay between air intake lane, outer ring (3) and outer ring return airway (7) and establish protection pillar (6), it is characterized in that, further comprising the steps of:
A. in coal mine down-hole tunnel with the propelling of stope, between the end hydraulic support (1) of stope or at top board place, end hydraulic support (1) rear, squeeze into anchor pole or anchor cable;
B. assist at end hydraulic support rear reinforcement placing net (12) obturation shaping and reinforce obturation, steel mesh reinforcement (12) is hung filling bag (10), and many hydraulic props (11) are set in steel mesh reinforcement (12) periphery;
C. the high-water material slurries mixed are poured in the filling bag (10) of hanging in steel mesh reinforcement, after filling grout cures, remove hydraulic prop (11), with Counter-pulled bolts, obturation is reinforced, complete the construction of 1 buttress filling wall;
D. repeat step a, b, c, complete continuous print filled wall (5);
E. fill airtight by the gob side entry retaining at 1 ~ 2m place, return air connection roadway (13) rear portion and the tunnel at rear and airtight partition wall (14), the spacing of described connection roadway is 40 ~ 100m;
F., when stope pushes through next connection roadway (13), steps d is repeated.
2. work plane segmented gob-side entry retaining method is adopted/put to according to claim 1 combining, and it is characterized in that: described steel mesh reinforcement network size is 40 ~ 100mm, the diameter of steel mesh reinforcement reinforcing bar is 4 ~ 8mm.
3. work plane segmented gob-side entry retaining method is adopted/put to according to claim 1 combining, and it is characterized in that: described Counter-pulled bolts diameter is 18 ~ 26mm.
4. work plane segmented gob-side entry retaining method is adopted/put to according to claim 1 combining, and it is characterized in that: described filling bag adopts filling bag that is fire-retardant, anti-static material.
CN201310649391.5A 2013-12-06 2013-12-06 Work plane segmented gob-side entry retaining method is adopted/put to a kind of combining Expired - Fee Related CN103628911B (en)

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Publication number Priority date Publication date Assignee Title
CN104018837B (en) * 2014-06-20 2016-04-06 中国矿业大学 A kind of interval filling gob-side entry retaining method processing planted agent's spoil
CN104712360B (en) * 2015-01-14 2017-06-20 中国矿业大学 A kind of mining height workface face is adjustable to fit falsework and gob-side entry retaining methods more
CN104727847B (en) * 2015-01-14 2016-11-02 中国矿业大学 Filled wall is from the gob-side entry retaining method without coal column eliminated
CN110374597B (en) * 2019-06-26 2021-01-29 陕西永明煤矿有限公司 Rectangular island coal pillar setting method for separated mining and roadway retaining of thin coal seam working face
CN110295903B (en) * 2019-06-26 2020-11-03 太原理工大学 Method for setting parallelogram island coal pillar of thin coal seam working face entry retaining
CN110905507A (en) * 2019-12-06 2020-03-24 河南力行科创矿山技术开发有限公司 Advanced roof cutting pressure relief gob-side entry retaining process for high-gas large-mining-height high-efficiency mining working face
CN111485947A (en) * 2020-03-31 2020-08-04 扬州中矿建筑新材料科技有限公司 Method for quickly closing goaf by roof cutting, pressure relief and gob-side entry retaining
CN112610262B (en) * 2020-11-30 2021-09-07 中国矿业大学 High-water material filling device and method suitable for gob-side entry retaining
CN112627892A (en) * 2020-12-21 2021-04-09 中国矿业大学 Closed wall construction method based on reinforcing mesh and high-water-content material
CN112796757A (en) * 2021-01-26 2021-05-14 扬州中矿建筑新材料科技有限公司 Method for high-water filling material roadside filling gob-side entry retaining

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CN101975085A (en) * 2010-09-09 2011-02-16 中国矿业大学 Gob-side entry retaining reinforcing filling body structure and construction method thereof
CN102071958A (en) * 2011-01-21 2011-05-25 中国矿业大学 Inverse Y-shaped ventilation method for coal mining working face
CN102146797A (en) * 2011-01-21 2011-08-10 中国矿业大学 Short-section temporary gob-side entry retaining method
CN102865099A (en) * 2012-08-29 2013-01-09 山西晋煤集团金鼎煤机矿业有限责任公司 Under-building, under-railway and under-water mining filling process

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Publication number Priority date Publication date Assignee Title
US4770086A (en) * 1987-08-20 1988-09-13 Gabster Jeffrey C Portable ventilation safety device
CN101718208A (en) * 2009-12-17 2010-06-02 山西晋城无烟煤矿业集团有限责任公司 Ventilating system arranged in U+H shape under coal mine
CN101975085A (en) * 2010-09-09 2011-02-16 中国矿业大学 Gob-side entry retaining reinforcing filling body structure and construction method thereof
CN102071958A (en) * 2011-01-21 2011-05-25 中国矿业大学 Inverse Y-shaped ventilation method for coal mining working face
CN102146797A (en) * 2011-01-21 2011-08-10 中国矿业大学 Short-section temporary gob-side entry retaining method
CN102865099A (en) * 2012-08-29 2013-01-09 山西晋煤集团金鼎煤机矿业有限责任公司 Under-building, under-railway and under-water mining filling process

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