CN103628911A - Fully-mechanized coal mining/ caving working face sectional type gob-side entry retaining method - Google Patents
Fully-mechanized coal mining/ caving working face sectional type gob-side entry retaining method Download PDFInfo
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- CN103628911A CN103628911A CN201310649391.5A CN201310649391A CN103628911A CN 103628911 A CN103628911 A CN 103628911A CN 201310649391 A CN201310649391 A CN 201310649391A CN 103628911 A CN103628911 A CN 103628911A
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Abstract
The invention discloses a fully-mechanized coal mining/ caving working face sectional type gob-side entry retaining method, which belongs to the field of mine support. The fully-mechanized coal mining/ caving working face sectional type gob-side entry retaining method comprises the following steps: arranging an intake airway and a return airway on two sides of a stope face, and arranging an entry protection coal pillar between an outer-ring intake airway and an outer-ring return airway. The fully-mechanized coal mining/ caving working face sectional type gob-side entry retaining method also comprises the following steps: reinforcing the support between the end hydraulic support of the stope face or on the rear top plate of the end hydraulic support; erecting a reinforcing mesh behind the end hydraulic support to assist in obturator forming; hanging a filling bag on the reinforcing mesh; arranging a hydropost on the periphery of the reinforcing mesh; filling evenly-mixed high-water material seriflux into the filling bag hung in the reinforcing mesh; after the filled seriflux is solidified, removing the hydropost; reinforcing the obturator to finish the construction of a falling wall; and filling and sealing gob-side entry retaining on the rear part of a connection roadway used for air return as well as the rear roadway and connection roadway. The fully-mechanized coal mining/ caving working face sectional type gob-side entry retaining method has the advantages of simple technology, convenience in construction, easiness in mastering for workers, high obturator bearing capacity, big fracture surface, small underground auxiliary traffic volume and high safety and reliability.
Description
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 be applicable to the interim or permanent support in down-hole comprehensive.
Background technology
At present, the improvement of gas is generally and first takes out afterwards the comprehensive regulation mode such as adopt, Bian Caibian takes out, but the coal seam strong for adsorptivity, gas bearing capacity is large, adopt the time that the method for extraction need to be longer, 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.
For avoiding face upper corner angle and air return way gas to exceed standard, need to adopt and later work plane rear to one section of air return way between connection roadway be remained at work plane, gas bearing capacity in shunting air return way, when next connection roadway is arrived in the advance of the face, the connection roadway at rear, airtight original goaf, open next connection roadway, finish the work in the tunnel retaining between two connection roadways.The normal grillage that adopts protected lane in the past, caused mine timber consumption large, not only stay lane cost greatly, not environmental protection, 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 rotation sinking effect, easily there is unstable failure in the grillage that supporting intensity is lower, stops up and stay lane, affects upper corner gas Xiang Wapai lane and discharge smoothly.
Summary of the invention
The object of the invention is to overcome the weak point in prior art, provide a kind of simple, mechanization degree high-water material obturation high, that take up room little, enabling capabilities is large, good in economic efficiency of constructing to construct segmented gob side entry retaining.
For realizing above-mentioned technical purpose, of the present invention combine adopted/puts work plane segmented gob-side entry retaining method and be included in stope both sides and arrange between air intake lane and return airway, air intake lane, outer ring and outer ring return airway and stay and establish protection pillar, and 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. at the auxiliary obturation moulding of end hydraulic support rear reinforcement placing net solidifying fills body, on steel mesh reinforcement, hang filling bag, and in steel mesh reinforcement periphery, many hydraulic props are set;
C. the high-water material slurries that mix are poured in the filling bag of hanging in steel mesh reinforcement, after waiting filling slurries to solidify, remove hydraulic prop, use drawing anchor pole to reinforce obturation, complete the construction of 1 buttress filling wall;
D. repeating step a, b, c, complete continuous filled wall;
E. return air is used the gob side entry retaining at 1 ~ 2m place, connection roadway rear portion and the tunnel at rear and connection roadway to fill airtight;
F. when stope pushes through next connection roadway, repeating step d.
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 is 18 ~ 26mm to drawing bolt diameter; Filling bag fire-retardant, anti-static material that described filling bag adopts.
Useful technique effect: work plane segmented gob-side entry retaining method is adopted/put to of the present invention combining, the high-water material slurries that use mixes pour in the filling bag of hanging in steel mesh reinforcement, in filling slurries, solidify rear formation filling wall, and use drawing anchor pole to reinforce obturation, its technique is simple, convenient construction, workman are easily grasped, obturation supporting capacity is high, section large, down-hole assistant conveyance amount is little and security reliability is high, has in the art practicality widely.
Accompanying drawing explanation
Fig. 1 is the exemplary construction schematic diagram of adopting/put work plane segmented gob side entry retaining of combining 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.
The specific embodiment
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, between return airway 8 and outer ring return airway 7, stay 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 end hydraulic support 1 top board place, rear, squeeze into anchor pole or anchor cable;
B. at the auxiliary obturation moulding of end hydraulic support rear reinforcement placing net 12 solidifying fills body, on steel mesh reinforcement 12, hang filling bag 10, and in steel mesh reinforcement 12 peripheries, many hydraulic props 11 are set, the network size of described steel mesh reinforcement 12 is 40 ~ 100mm, and the diameter of steel mesh reinforcement 12 reinforcing bars is 4 ~ 8mm;
C. the high-water material slurries that mix are poured in the filling bag 10 of hanging in steel mesh reinforcement, after solidifying in filling slurries, remove hydraulic prop 11, use drawing anchor pole to reinforce obturation, complete the construction of 1 buttress filling wall, described is 18 ~ 26mm to drawing bolt diameter; Filling bag fire-retardant, anti-static material that described filling bag adopts;
D. repeating step a, b, c, complete continuous filled wall 5;
E. return air is used connection roadway 13 gob side entry retainings at 1 ~ 2m place, rear portion and the tunnel at rear and connection roadway 14 to fill 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 is opened fire dam 9, the dirt connection roadway 13 of flowing through is entered to outer ring return airway 7, form two and enter the ventilation system of 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, repeating step d.
Near the connection roadway 13 of work plane, open fire dam 9, the dirt connection roadway 13 of flowing through is entered to outer ring return airway 7, form two and enter the ventilation system of twice, reduce the gas bearing capacity in face upper corner angle gas bearing capacity and shunting return airway 8.
Claims (5)
1. combine and to adopt/to put work plane segmented gob-side entry retaining method for one kind, be included between layout air intake lane (2), stope both sides and return airway (8), air intake lane, outer ring (3) and outer ring return airway (7) and stay 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. at the auxiliary obturation moulding of end hydraulic support rear reinforcement placing net (12) solidifying fills body, on steel mesh reinforcement (12), hang filling bag (10), and in steel mesh reinforcement (12) periphery, many hydraulic props (11) are set;
C. the high-water material slurries that mix are poured in the filling bag (10) of hanging in steel mesh reinforcement, after waiting filling slurries to solidify, remove hydraulic prop (11), use drawing anchor pole to reinforce obturation, complete the construction of 1 buttress filling wall;
D. repeating step a, b, c, complete continuous filled wall (5);
E. the tunnel at the gob side entry retaining at 1 ~ 2m place, connection roadway for return air (13) rear portion and rear and connection roadway (14) are filled airtight;
F. when stope pushes through next connection roadway (13), repeating step d.
2. work plane segmented gob-side entry retaining method is adopted/put to according to claim 1 combining, and it is characterized in that: the spacing of described connection roadway is 40 ~ 100m.
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 steel mesh reinforcement network size is 40 ~ 100mm, and the diameter of steel mesh reinforcement reinforcing bar is 4 ~ 8mm.
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 is 18 ~ 26mm to drawing bolt diameter.
5. 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 fire-retardant, anti-static material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310649391.5A CN103628911B (en) | 2013-12-06 | 2013-12-06 | Work plane segmented gob-side entry retaining method is adopted/put to a kind of combining |
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| CN201310649391.5A CN103628911B (en) | 2013-12-06 | 2013-12-06 | Work plane segmented gob-side entry retaining method is adopted/put to a kind of combining |
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| CN103628911A true CN103628911A (en) | 2014-03-12 |
| CN103628911B CN103628911B (en) | 2016-04-20 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104712360A (en) * | 2015-01-14 | 2015-06-17 | 中国矿业大学 | Adjustable high-adaptability formwork support for large mining height fully-mechanized face and gob-side entry retaining method |
| CN104727847A (en) * | 2015-01-14 | 2015-06-24 | 中国矿业大学 | Non chain pillar gob-side entry retaining method with filling wall self-erasure |
| CN110295903A (en) * | 2019-06-26 | 2019-10-01 | 太原理工大学 | Thin seam working surface stays the parallelogram gob-surrounded pillar setting method in lane |
| CN110374597A (en) * | 2019-06-26 | 2019-10-25 | 陕西永明煤矿有限公司 | Thin seam working surface partial mining stays the rectangle gob-surrounded pillar setting method in lane |
| 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 |
| CN112610262A (en) * | 2020-11-30 | 2021-04-06 | 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 |
| CN113187486A (en) * | 2021-06-03 | 2021-07-30 | 华北科技学院(中国煤矿安全技术培训中心) | Gob-side entry driving method for deep well without coal pillar and formed entry |
| CN116857001A (en) * | 2023-07-27 | 2023-10-10 | 山西文龙中美环能科技股份有限公司 | Paste filling gob-side entry retaining construction method |
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| 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 |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104712360A (en) * | 2015-01-14 | 2015-06-17 | 中国矿业大学 | Adjustable high-adaptability formwork support for large mining height fully-mechanized face and gob-side entry retaining method |
| CN104727847A (en) * | 2015-01-14 | 2015-06-24 | 中国矿业大学 | Non chain pillar gob-side entry retaining method with filling wall self-erasure |
| 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 |
| CN110295903A (en) * | 2019-06-26 | 2019-10-01 | 太原理工大学 | Thin seam working surface stays the parallelogram gob-surrounded pillar setting method in lane |
| CN110374597A (en) * | 2019-06-26 | 2019-10-25 | 陕西永明煤矿有限公司 | Thin seam working surface partial mining stays the rectangle gob-surrounded pillar setting method in lane |
| 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 |
| CN112610262A (en) * | 2020-11-30 | 2021-04-06 | 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 |
| CN113187486A (en) * | 2021-06-03 | 2021-07-30 | 华北科技学院(中国煤矿安全技术培训中心) | Gob-side entry driving method for deep well without coal pillar and formed entry |
| CN113187486B (en) * | 2021-06-03 | 2023-12-12 | 华北科技学院(中国煤矿安全技术培训中心) | Deep well non-coal pillar gob-side entry driving method and formed roadway |
| CN116857001A (en) * | 2023-07-27 | 2023-10-10 | 山西文龙中美环能科技股份有限公司 | Paste filling gob-side entry retaining construction method |
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