CN1026605C - Roadway supporting method for recovering working face supports and equipment - Google Patents
Roadway supporting method for recovering working face supports and equipment Download PDFInfo
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- CN1026605C CN1026605C CN 93108832 CN93108832A CN1026605C CN 1026605 C CN1026605 C CN 1026605C CN 93108832 CN93108832 CN 93108832 CN 93108832 A CN93108832 A CN 93108832A CN 1026605 C CN1026605 C CN 1026605C
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- 230000008093 supporting effect Effects 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 30
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- 239000002184 metal Substances 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims abstract description 11
- 238000011084 recovery Methods 0.000 claims abstract description 7
- 239000003245 coal Substances 0.000 claims description 14
- 239000002023 wood Substances 0.000 claims description 7
- 239000011435 rock Substances 0.000 claims description 5
- 239000004568 cement Substances 0.000 claims description 3
- 238000004873 anchoring Methods 0.000 claims description 2
- 238000005422 blasting Methods 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 238000005553 drilling Methods 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 claims description 2
- 238000005065 mining Methods 0.000 abstract description 13
- 230000008901 benefit Effects 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The invention relates to a roadway support method for underground recovery working face supports and equipment. In order to overcome a plurality of disadvantages of the shed-erecting recycling fully-mechanized mining equipment, the method adopts a metal top net to be laid in due time, and steel belts and supporting plates are matched to be fixedly supported through anchor rods in a certain arrangement mode. The method has the advantages that the effective space of the roadway is increased, the disassembly and the movement of the working face equipment are greatly facilitated, the underground safety condition and the working environment are improved, and the working efficiency is improved; meanwhile, the method has the advantages of good supporting effect, simple process, less consumed materials, low supporting cost and good economic and social benefits.
Description
The present invention relates to a kind of supporting method in tunnel when being used for that comprehensive mechanical coal mining force piece and equipment are removed under the coal mine.
In the roadway support that fully-mechanized mining working equipment is removed, adopt shed ding support usually, especially based on log hut.Its supporting method is: when work plane from stop adopting line 10～15m apart from the time, beginning reduces the mining height exploitation gradually to stopping adopting line 2.5m place apart from work plane, adopts the segmentation big gun to adopt and hold up the log hut supporting roof at this moment.In the support demolishing process, make beam with long i iron, the frame canopy is reach alternately, removes by frame.This method is because timber is difficult to reclaim, and waste of material is many, the cost height; And, influenced the recovery of coal resources because the log hut supporting need reduce mining height; Particularly when recovery operation face equipment, because the usefull space of log hut supporting is little, log hut is easily knocked down, and is unfavorable to keeping the safety in production, and working strength of workers is big in the work progress, and it is low that the tearing open of equipment moved efficient.
In order to overcome above-mentioned defective, the objective of the invention is to provides a kind of supporting method that compared with prior art can increase the usefull space to this tunnel.
The objective of the invention is to realize by following measure:
A kind of laneway support method that is used for recovery operation face support and equipment comprises:
A. when stopping adopting line 10～15m, on set cap, lays the distance work plane wire lath;
B. when when stopping adopting line 2～3m, support stops reach, in the mode of drilling and blasting piecemeal coal is adopted down also and in time top board is carried out temporary lining;
C. produce coal piecemeal and successively top board, lateral wall are carried out combined bolt support from top to bottom.
Described to top board carry out combined bolt support be adopt with support on the wire lath overlap joint continue to lay the metal roof net, and be equipped with steel band with anchor metal, rolling anchoring agent and metal supporting plate by fixedly supporting of nut.
Described supporting to lateral wall is fixed as one wire lath, steel band by wood bolt, cement supporting plate and voussoir.
Array pitch is 0.6～1.0m between above-mentioned anchor pole.Above-mentioned steel band is to weld little horizontal bar according to the anchor pole spacing to form on two main reinforcements that are parallel to each other, and is an anchor point with two next-door neighbours' little horizontal bar.
Under I-II class surrounding rock condition, steel band adopts beam shape arrangement to fix.
Under III-IV class surrounding rock condition, steel band adopts netted arrangement to fix.
Long 1.8～the 2.0m of anchor metal, diameter is 16～20mm.Long 1.6～the 1.8m of wood bolt, diameter is 36～38mm.
Adopt said method supporting mine fully-mechanized mining equipment to reclaim the tunnel, its advantage is clearly.
At first,, the full section usefull space in tunnel is increased, be very easy to tearing open of fully-mechanized mining equipment and move, avoided log hut to knock the generation of accident down owing to cancelled the support pin; In addition, under the situation that the supporting operation reduces, supporting district top board is difficult for inbreak takes place, and advantage has been created in the ventilation when removing for work plane.These all provide reliable assurance for the improvement of downhole safety working condition.
Saved a large amount of support materials owing to adopt anchor rod support method, both reduced support cost, reduce haul, Fu Peng when making driving again, blown out the canopy phenomenon that collapses, and do not exist and often safeguard top board and the prop drawing work of work back, also reduced and alternately held up farm labourer's word steelframe canopy operation, alleviated labor strength, improved safe condition and working environment, simultaneously also accelerate speed of application, improved production efficiency.
Because the investment of fully-mechanized mining equipment is very high, usage ratio of equipment then is directly connected to the total cost of coal production.Adopt this method supporting fully-mechanized mining equipment to remove the tunnel, the removal time of having reduced working face equipment effectively, accelerated removal speed, for the highly efficient and productive condition that provides is provided.
Owing to adopt supporting fully-mechanized mining equipment of the present invention to remove the tunnel, need not to make support to reduce the mining height exploitation, thereby improved the rate of recovery of coal resources.
In addition, the present invention also can make full use of the original transportation system of fully-mechanized mining working and produce coal, and has reduced taking of road heading machinery equipment; This method supporting effect is good, and technology is simple, and the operating personnel can reduce and work efficiency raising or the like advantage relatively, is easy to apply and have good economic and social benefit.
Fig. 1 is the schematic diagram of supporting method of the present invention.
Describe the present invention below in conjunction with accompanying drawing:
I have implemented this method supporting reclaimer tunnel at more than ten fully-mechanized mining working that belongs under II-IV class surrounding rock condition in the ore deposit.The concrete practice is: lay wire lath 2 when stopping adopting line 10m from work plane on hydraulic support 1 back timber.When support is pushed into when stopping adopting line 2.5m, support stops reach, entire working surface is carried out big gun piecemeal adopt and get ready the post supporting.Coal utilization transporter under adopting transports, and repairs out the lane space of recovery operation face equipment again.Top board lay wire lath and with support on the wire lath overlap joint with steel band 5 beam shapes arrange be pressed on online fixing with anchor metal 3, supporting plate 6.The long 1.8m of used anchor metal, array pitch 0.6～0.8m.Coal group still adopts steel band to push down wire lath, wood bolt 4 and is equipped with fixedly wall supporting of cement supporting plate 7 and voussoir.Array pitch is 0.8～1.0m between wood bolt, and the long 1.6m of wood bolt begins to be provided with from the downward 0.4m of top board.
Implement said method and shed shoring reclaimer tunnel relatively, effect is tangible.The useful area utilization rate that at first is the tunnel has improved 17%, knocks the pillar phenomenon when no longer occurring tearing moving device open down, has improved the dismounting hauling operation environment of working face equipment; Owing to utilize assembled bolt to realize the integration supporting, supporting effect is good, has cancelled the operation of alternately holding up farm labourer's word girder steel, has alleviated working strength of workers, removes the work efficiency height, and than moving a work plane and lack and use 20 days firmly tearing open, removal speed doubles many; After adopting supporting of the present invention, equipment is removed district's top board and is difficult for inbreak, the ventilation requirement when helping the work plane dismounting; Because support material consumption reduces, and has both saved the supporting expense, has reduced the transport of materials amount again, labour intensity is little.Its overall economic efficiency is that a work plane is saved more than 10 ten thousand yuan.In addition, technology of the present invention is simple, helps reclaiming to greatest extent coal resources, reduces the raw coal total production cost, is a kind of safe, economic, good method of being easy to promote.
Claims (9)
1, a kind of laneway support method that is used for recovery operation face support and equipment is characterized in that:
A. when stopping adopting line 10～15m, on set cap, lays the distance work plane wire lath;
B. when when stopping adopting line 2～3m, support stops reach, in the mode of drilling and blasting piecemeal coal is adopted down also and in time top board is carried out temporary lining;
C. produce coal piecemeal and successively top board, lateral wall are carried out combined bolt support from top to bottom.
2, supporting method as claimed in claim 1, it is characterized in that, to top board carry out combined bolt support be adopt with support on the wire lath overlap joint continue to lay the metal roof net, and be equipped with steel band with anchor metal, rolling anchoring agent and metal supporting plate by fixedly supporting of nut.
3, supporting method as claimed in claim 1 is characterized in that, the supporting of lateral wall is fixed as one wire lath, steel band by wood bolt, cement supporting plate and voussoir.
As claim 2 or 3 described supporting method, it is characterized in that 4, array pitch is 0.6～1.0m between above-mentioned anchor pole.
As claim 2 or 3 described supporting method, it is characterized in that 5, above-mentioned steel band is to weld little horizontal bar according to the anchor pole spacing to form on two main reinforcements that are parallel to each other.
As claim 2 or 3 described supporting method, it is characterized in that 6, under I-II class surrounding rock condition, steel band adopts beam shape arrangement to fix.
As claim 2 or 3 described supporting method, it is characterized in that 7, under III-IV class surrounding rock condition, steel band adopts netted arrangement to fix.
8, supporting method as claimed in claim 2 is characterized in that, the long 1.8～2.0m of anchor metal, and diameter is 16～20mm.
9, supporting method as claimed in claim 3 is characterized in that, the long 1.6～1.8m of wood bolt, and diameter is 36～38mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93108832 CN1026605C (en) | 1993-07-24 | 1993-07-24 | Roadway supporting method for recovering working face supports and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93108832 CN1026605C (en) | 1993-07-24 | 1993-07-24 | Roadway supporting method for recovering working face supports and equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1083895A CN1083895A (en) | 1994-03-16 |
| CN1026605C true CN1026605C (en) | 1994-11-16 |
Family
ID=4987335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93108832 Expired - Fee Related CN1026605C (en) | 1993-07-24 | 1993-07-24 | Roadway supporting method for recovering working face supports and equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1026605C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975072B (en) * | 2010-09-13 | 2012-10-03 | 山西晋城无烟煤矿业集团有限责任公司 | Recovery method of common combined mining working face hydraulic support |
| CN102135005B (en) * | 2011-03-11 | 2012-07-25 | 中国矿业大学 | Method for supporting roof of roadway under coal pillar and gob transition section |
| CN102418527B (en) * | 2011-12-28 | 2014-08-13 | 北京科技大学 | Method for mining flat dipping ultrathin sedimentary type subterranean iron ore deposit |
| CN105134266A (en) * | 2015-08-24 | 2015-12-09 | 天地科技股份有限公司 | Support method for fully-mechanized coal mining face full-negative-pressure withdrawing channel |
| CN108316956B (en) * | 2018-01-31 | 2019-08-16 | 大同煤矿集团有限责任公司 | Fully-mechanized mining working stops adopting method for protecting support |
| CN109139076A (en) * | 2018-08-24 | 2019-01-04 | 淮北矿业股份有限公司 | A kind of mining tunnel face mechanization brush expands frame lane device |
| CN112412506B (en) * | 2020-11-20 | 2021-07-23 | 中国矿业大学 | Anti-scour method for head-on anchor cable support in coal roadway tunneling |
-
1993
- 1993-07-24 CN CN 93108832 patent/CN1026605C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1083895A (en) | 1994-03-16 |
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