CN107091091A - A kind of steeply-inclined seam mining gob-side entry retaining method of prefabricated arc support - Google Patents

A kind of steeply-inclined seam mining gob-side entry retaining method of prefabricated arc support Download PDF

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Publication number
CN107091091A
CN107091091A CN201710531853.1A CN201710531853A CN107091091A CN 107091091 A CN107091091 A CN 107091091A CN 201710531853 A CN201710531853 A CN 201710531853A CN 107091091 A CN107091091 A CN 107091091A
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CN
China
Prior art keywords
arc support
support
entry retaining
prefabricated
steeply
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710531853.1A
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Chinese (zh)
Inventor
姚琦
冯涛
廖泽
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Hunan University of Science and Technology
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Hunan University of Science and Technology
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Application filed by Hunan University of Science and Technology filed Critical Hunan University of Science and Technology
Priority to CN201710531853.1A priority Critical patent/CN107091091A/en
Publication of CN107091091A publication Critical patent/CN107091091A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21CMINING OR QUARRYING
    • E21C41/00Methods of underground or surface mining; Layouts therefor
    • E21C41/16Methods of underground mining; Layouts therefor
    • E21C41/18Methods of underground mining; Layouts therefor for brown or hard coal
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/04Lining with building materials
    • E21D11/10Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
    • E21D11/107Reinforcing elements therefor; Holders for the reinforcing elements

Abstract

The present invention discloses a kind of steeply-inclined seam mining gob-side entry retaining method of prefabricated arc support, comprises the following steps:A, ship to stope drift active workings in ground prefabricated reinforced concrete arc support, and by movable hanging entrucking;B, at the goaf of working face ended support rear, vertically respectively excavate row's rectangular channel in bottom plate and top plate;C, by prefabricated arc support closure be erected in groove, constitute the arc branch mask of closing, intercept goaf and slide spoil, arch roof supporting is built by arc support again, with arc support and original anchor pole formation " anchor pole+arc support+block arch " combined support system roof supporting, the purpose of gob side entry retaining is reached.Steeply-inclined seam mining gob-side entry retaining method of the present invention reduces loss of coal pillar, improves the rate of recovery of coal resources, saves tunnelling expense.The prefabricated arc support Stability Analysis of Structures used, have the advantages that to implement flexibly, low cost, safe operation, later maintenance be simple, supporting effect is good.

Description

A kind of steeply-inclined seam mining gob-side entry retaining method of prefabricated arc support
Technical field
The present invention relates to mining technique method field, more particularly to a kind of steeply-inclined seam mining edge of prefabricated arc support Kong Liu lanes method.
Background technology
Edge air gallery technology is a stope drift active workings for upper working face, during working face extraction, by adopting Roadside support body is constructed at dead zone edge, is remained, and is used as the stope drift active workings of lower working face.Production practices show, The technology has the advantages that reduction tunnelling rate, reclaims protection pillar, realizes that Y types are divulged information, and is at home and abroad obtained in coal production Extensive use has been arrived, very big economic and social benefit is brought to colliery and society.Thus, all should for the mine that condition is adapted to When preferential use, and expand the application of gob side entry retaining as far as possible.
At present, in thin and middle thick gently inclined seam coal-face exploitation, edge air gallery technology is more ripe, but Gob side entry retaining is but difficult to accomplish under the conditions of steeply-inclined seam mining.Gob side entry retaining is difficult what is accomplished under the conditions of steeply-inclined seam mining Reason is:After the exploitation of half-edge coal seam coal-face, top plate is easily in goaf large area inbreak, and caved gangue is in Action of Gravity Field Lower easily to be slid to tunnel (gob side entry retaining side), paste body filling body by impact lane causes the reduction of roadside support body stability, meanwhile, When half-edge coal seam coal-face carries out gob side entry retaining construction, caved gangue is slid to tunnel, and danger is brought to construction;Separately Outside, because high_dipping face working seam inclination angle is big, it is not strong that top Unloading Technology applicability is cut in explosion, is primarily due to directly top After cut-out in easy undershoot to tunnel, cause the rock stratum globality after roadway damage, or even security incident, and cut-out strong, broken swollen Coefficient very little, can still leave larger space and cause old top to produce larger revolution and sink, so as to draw between disrupted bed and old top Play the increase of lane inside ceiling panel deflection.
Existing edge air gallery technology technique, mainly uses filling support or other template types filling quick-set Roadside support body (intensive prop, spoil bag, high percentage of water rapid solidifying material filled wall, concrete block etc. are constructed in mined out area edge Wall), so not only complex process, and need substantial amounts of manpower and materials, labor intensity is big, and complicated construction technique, speed are slow. Less it is applied to the gob side entry retaining condition of half-edge coal seam, and the gob side entry retaining road technology of current steeply-inclined seam mining is even more very It is few.
The content of the invention
In order to solve the above mentioned problem that half-edge coal seam gob side entry retaining is brought, the present invention is intended to provide a kind of implement spirit The good steeply-inclined seam mining gob-side entry retaining method of work, low cost, safe operation, easy care, supporting effect.
In order to solve the above technical problems, the technical solution adopted in the present invention is:A kind of high-dipping of prefabricated arc support Seam mining gob-side entry retaining method, comprises the following steps:
A, prefabricated arc support, it is standby;
B, in working face ended support rear goaf at stope drift active workings bottom plate, vertically respectively opened in bottom plate and top plate Dig an emissions groove;
C, multiple prefabricated arc supports closures are erected in groove, constitute the arc branch mask of closing, intercept goaf and slide cash Lower goaf is filled and is compacted by stone, spoil natural downslide, then builds arch roof supporting by arc support, with arc support and original There is anchor pole formation " anchor pole+arc support+block arch " combined support system roof supporting, reach the purpose of gob side entry retaining.
Preferably, described arc support is reinforced concrete radial support.
Preferably, the groove is rectangular channel.
Preferably, described arc support is vertically to set to install.
Beneficial effects of the present invention:Described steeply-inclined seam mining gob-side entry retaining method reduces loss of coal pillar, significantly The rate of recovery of coal resources is improved, is that lower curtate exploitation is stayed and set tunnel, saves tunnelling expense, with widely should The property used;Meanwhile, the prefabricated arc support Stability Analysis of Structures of use, later maintenance is simple;The present invention have implement flexibly, cost it is low, The advantages of safe operation, easy care, supporting effect are good.
Brief description of the drawings
Fig. 1 is gob side entry retaining sectional schematic diagram of the present invention;
Fig. 2 is prefabricated reinforced concrete arc support schematic diagram of the present invention.
In figure:1 reinforced concrete radial support, 2 rectangular channels, 3 are caving spoil, 4 anchor poles, 5 block arch.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
A kind of steeply-inclined seam mining gob-side entry retaining method of prefabricated arc support, the coal seam for being first depending on working face is thick Situations such as degree, end support and goaf top plate carry out pressure pressure etc. and are actually needed, and determine A, B, C of the arc support 1 shown in Fig. 2 With the determination of R parameter and bar gauge, and the prefabricated of reinforced concrete radial support 1 is carried out on ground;Then will be multiple prefabricated Good arc support 1 is shipped to each position of stope drift active workings by movable hanging entrucking;After working face extraction, as shown in figure 1, In working face ended support rear goaf at stope drift active workings bottom plate, vertically a row is respectively excavated in bottom plate and top plate Rectangular channel 2;Then multiple arcs support 1 is closed in order and be erected in rectangular channel 2, form the arc branch mask of closing;Adopt Dead zone is caving slipped under spoil 3 after by arc branch mask intercept, be caving the natural downslide of spoil 3 by lower goaf fill be compacted, then The roof supporting of arch 5 is built by arc support, " anchor pole+arc support+block is formed with arc support 1 and the anchor pole of original supporting 4 Arch " combined support system roof supporting, reaches the purpose of gob side entry retaining.

Claims (4)

1. a kind of steeply-inclined seam mining gob-side entry retaining method of prefabricated arc support, it is characterised in that:Comprise the following steps:
A, prefabricated arc support, it is standby;
B, in working face ended support rear goaf at stope drift active workings bottom plate, vertically respectively opened in bottom plate and top plate Dig an emissions groove;
C, multiple prefabricated arc supports closures are erected in groove, constitute the arc branch mask of closing, intercept goaf and slide cash Lower goaf is filled and is compacted by stone, spoil natural downslide, then builds arch roof supporting by arc support, with arc support and original There is anchor pole formation " anchor pole+arc support+block arch " combined support system roof supporting, reach the purpose of gob side entry retaining.
2. a kind of steeply-inclined seam mining gob-side entry retaining method of prefabricated arc support according to claim 1, its feature It is:Described arc support is reinforced concrete radial support.
3. a kind of steeply-inclined seam mining gob-side entry retaining method of prefabricated arc support according to claim 1, its feature It is:The groove is rectangular channel.
4. a kind of steeply-inclined seam mining gob-side entry retaining method of prefabricated arc support according to claim 1, its feature It is:Described arc support is vertically to set to install.
CN201710531853.1A 2017-07-03 2017-07-03 A kind of steeply-inclined seam mining gob-side entry retaining method of prefabricated arc support Pending CN107091091A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710531853.1A CN107091091A (en) 2017-07-03 2017-07-03 A kind of steeply-inclined seam mining gob-side entry retaining method of prefabricated arc support

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710531853.1A CN107091091A (en) 2017-07-03 2017-07-03 A kind of steeply-inclined seam mining gob-side entry retaining method of prefabricated arc support

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CN107091091A true CN107091091A (en) 2017-08-25

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108547658A (en) * 2018-03-20 2018-09-18 四川省安全科学技术研究院 A kind of high inclination-angle ultra-thin coal seam spoil is from slipping backfilling goaf method
CN108979638A (en) * 2018-09-10 2018-12-11 四川达竹煤电(集团)有限责任公司金刚煤矿 Coal cutting roadway wedge shape regenerates wall and the compound gob-side entry retaining method of one-leg shed beam
CN110700855A (en) * 2019-09-10 2020-01-17 太原理工大学 Method for preventing horizontal dislocation at high roof contact rate of gob-side entry retaining roadside support
CN111237011A (en) * 2020-04-29 2020-06-05 北京矿冶科技集团有限公司 Quick closed framework and device for underground mine filling stope
CN111828015A (en) * 2020-08-05 2020-10-27 天津爱纷销科技有限公司 Roadway construction method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2101501C1 (en) * 1996-06-06 1998-01-10 Сибирская государственная горно-металлургическая академия Method of preservation of mine working
CN102720498A (en) * 2012-06-20 2012-10-10 鄂托克前旗长城煤矿有限责任公司 Gob-side entry retaining mining process for coal face
CN203856487U (en) * 2014-04-15 2014-10-01 山东科技大学 Flexible cover combined support for cut and fill mining of steep inclined coal seam
CN104929666A (en) * 2015-04-30 2015-09-23 中国矿业大学 Top breaking gob-side entry retaining method for tender roofs
CN205400744U (en) * 2015-12-31 2016-07-27 四川达竹煤电(集团)有限责任公司小河嘴煤矿 Utilize along empty supporting construction who realizes closely coal seam exploitation in lane that protects
CN205445623U (en) * 2015-12-31 2016-08-10 四川达竹煤电(集团)有限责任公司小河嘴煤矿 Along empty facility of strutting of mineing coal seam closely in lane that protects
CN106801609A (en) * 2017-02-28 2017-06-06 山东科技大学 A kind of method of use jack up ∏ shape steel tubes concrete support system gob side entry retaining

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2101501C1 (en) * 1996-06-06 1998-01-10 Сибирская государственная горно-металлургическая академия Method of preservation of mine working
CN102720498A (en) * 2012-06-20 2012-10-10 鄂托克前旗长城煤矿有限责任公司 Gob-side entry retaining mining process for coal face
CN203856487U (en) * 2014-04-15 2014-10-01 山东科技大学 Flexible cover combined support for cut and fill mining of steep inclined coal seam
CN104929666A (en) * 2015-04-30 2015-09-23 中国矿业大学 Top breaking gob-side entry retaining method for tender roofs
CN205400744U (en) * 2015-12-31 2016-07-27 四川达竹煤电(集团)有限责任公司小河嘴煤矿 Utilize along empty supporting construction who realizes closely coal seam exploitation in lane that protects
CN205445623U (en) * 2015-12-31 2016-08-10 四川达竹煤电(集团)有限责任公司小河嘴煤矿 Along empty facility of strutting of mineing coal seam closely in lane that protects
CN106801609A (en) * 2017-02-28 2017-06-06 山东科技大学 A kind of method of use jack up ∏ shape steel tubes concrete support system gob side entry retaining

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108547658A (en) * 2018-03-20 2018-09-18 四川省安全科学技术研究院 A kind of high inclination-angle ultra-thin coal seam spoil is from slipping backfilling goaf method
CN108979638A (en) * 2018-09-10 2018-12-11 四川达竹煤电(集团)有限责任公司金刚煤矿 Coal cutting roadway wedge shape regenerates wall and the compound gob-side entry retaining method of one-leg shed beam
CN110700855A (en) * 2019-09-10 2020-01-17 太原理工大学 Method for preventing horizontal dislocation at high roof contact rate of gob-side entry retaining roadside support
CN111237011A (en) * 2020-04-29 2020-06-05 北京矿冶科技集团有限公司 Quick closed framework and device for underground mine filling stope
CN111828015A (en) * 2020-08-05 2020-10-27 天津爱纷销科技有限公司 Roadway construction method

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