CN104131834B - A kind of stope drift active workings gob-side entry retaining method that is applicable to thin and medium seam - Google Patents

A kind of stope drift active workings gob-side entry retaining method that is applicable to thin and medium seam Download PDF

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Publication number
CN104131834B
CN104131834B CN201410330292.5A CN201410330292A CN104131834B CN 104131834 B CN104131834 B CN 104131834B CN 201410330292 A CN201410330292 A CN 201410330292A CN 104131834 B CN104131834 B CN 104131834B
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China
Prior art keywords
gob
active workings
drift active
stope drift
applicable
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CN201410330292.5A
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Chinese (zh)
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CN104131834A (en
Inventor
刘金海
高林生
王悦平
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华北科技学院
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Publication of CN104131834B publication Critical patent/CN104131834B/en

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Abstract

The present invention relates to a kind of stope drift active workings gob-side entry retaining method that is applicable to thin and medium seam, it comprises the following steps: 1) taking the floor rock of stope drift active workings planted agents gained as raw material, being equipped with suitable cement is cementitious matter, is closing on the other flexible isolating body of building one in Yi Ce tunnel, goaf; 2) beat CUMULATIVE BLASTING hole to the hard old top of above goaf, blast hole is positioned at slider outside, and goaf side roof blasting is cut and fallen, and forms " masonry beam " structure so that cut the top board and its overlying rock that fall; 3) after the stability of cavern roof that body to be isolated and cutting falls, at slider jet surface one deck blowing agent. The present invention, with respect to existing gob side entry driving technology, can realize without coal pillar mining, has improved coal mining rate, has reduced section coal pillar loss and roadway support expense.

Description

A kind of stope drift active workings gob-side entry retaining method that is applicable to thin and medium seam

Technical field

The present invention relates to a kind of coal seam gob-side entry retaining method, be specifically related to a kind of back production lane that is applicable to thin and medium seamRoad gob-side entry retaining method.

Background technology

Gob side entry retaining is to realize one of important means without coal pillar mining, and it is to improving coal recovery rate, reducing laneRoad drivage ratio, the continue tight relationship and to realize the intensive production of mine etc. significant of digging of alleviating.

The edge air gallery technology of traditional employing spoil buttress, intensive wooden prop etc. is only applicable to girdle, and in thick coalThe concrete segment and the intensive metal mainstay supporting that in layer, adopt, exist Support Resistance not, contractibility can not mate,Mechanization degree is low, labour intensity is large and the shortcoming such as goaf poor sealing performance, has limited the use of edge air gallery technologyScope. Also had in recent years utilize High-water quick consolidated filling materials in lane the other technology that realizes mechanization and construct Hu Xiang packwall,But there is the drawbacks such as filling cost is high, long-term strength is low. Therefore want to guarantee gob side entry retaining success, need to solveIn existing edge air gallery technology, supporting not in time, bearing capacity is little, yielding property is poor, goaf isolation effect is poor, material choosingSelect problem single, high in cost of production aspect.

Summary of the invention

For the problems referred to above, the object of this invention is to provide that a kind of method is simple, easy to operate, economy is suitable for efficientlyIn the stope drift active workings gob-side entry retaining method of thin and medium seam.

For achieving the above object, the present invention takes following technical scheme: a kind of back production lane that is applicable to thin and medium seamRoad gob-side entry retaining method, it comprises the following steps:

1) taking the floor rock of stope drift active workings planted agents gained as raw material, being equipped with suitable cement is cementitious matter, adopts closing onThe other flexible isolating body of building one in Yi Ce tunnel, dead zone;

2) beat CUMULATIVE BLASTING hole to the hard old top of above goaf, blast hole is positioned at slider outside, by goaf sideRoof blasting is cut and is fallen, and forms " masonry beam " structure so that cut the top board and its overlying rock that fall;

3) after the stability of cavern roof that body to be isolated and cutting falls, at slider jet surface one deck blowing agent.

In a preferred embodiment, stope drift active workings planted agent's long b, high a and the wide c of slider, high d should meeta*b=c*d。

In a preferred embodiment, the width c of slider should meet 0.5m < c < 1m.

In a preferred embodiment, explosion is cut the top board height falling between 10~15m.

In a preferred embodiment, blowing agent adopts the material with sealing, fire-retardant and anti-oxidation function.

The present invention is owing to taking above technical scheme, and it has the following advantages: 1, the present invention is taking roadway floor rock as mainWant raw material, being equipped with part of cement is cementitious matter, compares and uses by the lane for raw material such as ground blockwork, high-water materialSlider, has significantly saved fee of material, traffic expense. 2, the present invention uses roadway floor rock and cement works slider,And there is the blowing agent of sealing, fire-retardant and anti-oxidation function at slider jet surface one deck, slider compression strength is large,The anti-oxidant cycle is long. 3, backwardness is cut in goaf top plate explosion by the present invention, has unloaded the abutment pressure of top, tunnel, makesObtain the suffered vertical stress in tunnel and reduce, be of value to tunnel and keep stable. 4, the present invention is with respect to existing gob side entry driving skillArt, can realize without coal pillar mining, has improved coal mining rate, has reduced section coal pillar loss and roadway support expense.

Brief description of the drawings

Below in conjunction with accompanying drawing, the present invention is carried out to detailed describing. But should be appreciated that only the providing for more of accompanying drawingUnderstand well the present invention, they not should be understood to limitation of the present invention.

Fig. 1 is the schematic diagram that gob side entry of the present invention stays equipment, method.

Detailed description of the invention

Below in conjunction with drawings and Examples, the present invention is described in detail.

As shown in Figure 1, stope drift active workings gob-side entry retaining method provided by the invention comprises the steps:

1) act as a planted agent the floor rock 3 of gained as raw material taking stope drift active workings 2, being equipped with suitable cement is cementitious matter, is facingThe other flexible isolating body 4 of building one in tunnel of nearly goaf 6 one sides.

2) beat CUMULATIVE BLASTING hole to the hard old top of 6 tops, goaf, blast hole is positioned at slider 4 outsides, will adopt skyDistrict's 6 side roof blastings are cut and are fallen, so that its overlying rock 8 forms " masonry beam " structure.

3) body to be isolated 4 and cut the top board 5 falling stable after, at slider 4 jet surface one deck blowing agents 9.

In a preferred embodiment, long b, the high a that stope drift active workings 2 are acted as a planted agent and the wide c of slider 4, high dShould meet a*b=c*d, and the width c of slider 4 generally should meet 0.5m < c < 1m.

In a preferred embodiment, explosion is cut top board 5 height falling and is advisable between 10~15m.

In a preferred embodiment, blowing agent 9 adopt there is sealing, the material of fire-retardant and anti-oxidation function.

The various embodiments described above are only further said in detail for object of the present invention, technical scheme and beneficial effect have been carried outBright, be not limited to the present invention, within the spirit and principles in the present invention all, any amendment of making, be equal to and replaceChange, improvement etc., within all should being included in protection scope of the present invention.

Claims (6)

1. a stope drift active workings gob-side entry retaining method that is applicable to thin and medium seam, it comprises the following steps:
1) taking the floor rock of stope drift active workings planted agents gained as raw material, being equipped with suitable cement is cementitious matter, adopts closing onThe other flexible isolating body of building one in Yi Ce tunnel, dead zone;
2) beat CUMULATIVE BLASTING hole to the hard old top of above goaf, blast hole is positioned at slider outside, by goaf sideRoof blasting is cut and is fallen, and forms " masonry beam " structure so that cut the top board and its overlying rock that fall;
3) after the stability of cavern roof that body to be isolated and cutting falls, at slider jet surface one deck blowing agent.
2. a kind of stope drift active workings gob-side entry retaining method that is applicable to thin and medium seam as claimed in claim 1, its spyLevy and be: stope drift active workings planted agent's long b, high a and the wide c of slider, high d should meet a*b=c*d.
3. a kind of stope drift active workings gob-side entry retaining method that is applicable to thin and medium seam as claimed in claim 2, its spyLevy and be: the width c of slider should meet 0.5m < c < 1m.
4. a kind of stope drift active workings gob side entry retaining side that is applicable to thin and medium seam as described in claim 1 or 2 or 3Method, is characterized in that: explosion is cut the top board height falling between 10~15m.
5. a kind of stope drift active workings gob side entry retaining side that is applicable to thin and medium seam as described in claim 1 or 2 or 3Method, is characterized in that: blowing agent adopts the material with sealing, fire-retardant and anti-oxidation function.
6. a kind of stope drift active workings gob-side entry retaining method that is applicable to thin and medium seam as claimed in claim 4, its spyLevy and be: blowing agent adopts the material with sealing, fire-retardant and anti-oxidation function.
CN201410330292.5A 2014-07-11 2014-07-11 A kind of stope drift active workings gob-side entry retaining method that is applicable to thin and medium seam CN104131834B (en)

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CN201410330292.5A CN104131834B (en) 2014-07-11 2014-07-11 A kind of stope drift active workings gob-side entry retaining method that is applicable to thin and medium seam

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CN201410330292.5A CN104131834B (en) 2014-07-11 2014-07-11 A kind of stope drift active workings gob-side entry retaining method that is applicable to thin and medium seam

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CN104131834B true CN104131834B (en) 2016-05-11

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106761742B (en) * 2016-11-23 2019-04-16 西安科技大学 A kind of deep island working face gob side entry driving surrounding rock stability control method
CN107355223A (en) * 2017-08-21 2017-11-17 华北科技学院 A kind of stope drift active workings gob-side entry retaining method suitable for easy inbreak top plate
CN107387084B (en) * 2017-09-15 2019-03-05 中国矿业大学 The construction method of top depth is cut in a kind of gob side entry retaining reduction
CN110939466A (en) * 2019-12-13 2020-03-31 贵州大学 Pier stud non-blasting roof cutting gob-side entry driving method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001069042A1 (en) * 2000-03-13 2001-09-20 Oil Sands Underground Mining, Inc. Method and system for mining hydrocarbon-containing materials
CN101143772A (en) * 2007-08-17 2008-03-19 淮南矿业(集团)有限责任公司 Side filling material of road retained for next sublevel
CN101509395A (en) * 2009-03-16 2009-08-19 太原理工大学 The roof caving and tunnel protecting method
CN101725368A (en) * 2009-11-28 2010-06-09 山东科技大学 Thick seam large mining height working face gob-side entry retaining method
CN101967992A (en) * 2010-09-17 2011-02-09 山东新矿赵官能源有限责任公司 Different-strength bearing roadside filler for pillar-free mining of thin coal bed

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001069042A1 (en) * 2000-03-13 2001-09-20 Oil Sands Underground Mining, Inc. Method and system for mining hydrocarbon-containing materials
CN101143772A (en) * 2007-08-17 2008-03-19 淮南矿业(集团)有限责任公司 Side filling material of road retained for next sublevel
CN101509395A (en) * 2009-03-16 2009-08-19 太原理工大学 The roof caving and tunnel protecting method
CN101725368A (en) * 2009-11-28 2010-06-09 山东科技大学 Thick seam large mining height working face gob-side entry retaining method
CN101967992A (en) * 2010-09-17 2011-02-09 山东新矿赵官能源有限责任公司 Different-strength bearing roadside filler for pillar-free mining of thin coal bed

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