CN103899331B - Digging laneway method for arranging during heavily stressed prominent high seam top coal caving - Google Patents
Digging laneway method for arranging during heavily stressed prominent high seam top coal caving Download PDFInfo
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- CN103899331B CN103899331B CN201410165942.5A CN201410165942A CN103899331B CN 103899331 B CN103899331 B CN 103899331B CN 201410165942 A CN201410165942 A CN 201410165942A CN 103899331 B CN103899331 B CN 103899331B
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- 239000003245 coal Substances 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 37
- 230000008093 supporting effect Effects 0.000 claims description 19
- 230000008569 process Effects 0.000 claims description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 238000009412 basement excavation Methods 0.000 claims description 8
- 238000009423 ventilation Methods 0.000 claims description 5
- 238000011161 development Methods 0.000 abstract description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 7
- 230000005641 tunneling Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000005065 mining Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000000547 structure data Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
Digging laneway method for arranging when the invention discloses a kind of heavily stressed soft prominent high seam top coal caving, uses the method along top driving, and uses the way of bolt-mesh-anchor support.Can efficiently solve that ature of coal is soft, Gas Outburst serious, developmental joint fissure, affected by heavily stressed geological conditions, constructional difficulties, labor intensity are big, Drift stability the is poor projecting coal bed driving problem of high methane, production efficiency is significantly increased, has promoted the development in colliery.
Description
Technical field
The present invention relates to a kind of mine safety mining technology, when particularly relating to a kind of heavily stressed prominent high seam top coal caving
Digging laneway method for arranging.
Background technology
Safe, fast, efficient ground digging laneway is the prerequisite of coal production, is also to ensure that coal mine excavation is normally connected
Essential condition.The former tunnelling of pit coal layer of great Shu village of peak-to-peak group mainly coordinates U steel supporting based on full-seam mining, this
Planting tunneling method constructional difficulties under heavily stressed geological conditions, and labor intensity is big, roadway construction the most just occurs that deformation is received
Holding back serious, the response rate of coal mining efficiency and coal is the most relatively low, and safety is the poorest, and occurs drop not etc. big in driving
The length fold that craven fault and form differ, has a strong impact on the normal of stope drift active workings and tunnels the end of along, and then have impact on normal raw
Produce, carry out driving technology research for these problems extremely the most urgent.
Along with the development of support technology, the digging laneway of China's many mines is all widely used bolt support technology, anchor pole
Support technology is because it is safe and reliable, economic dispatch advantage gets the nod and gradually instead of U steel supporting.Ore deposit, Er great Shu village is in pick
Using U-shaped steel arching during entering, in process of construction, output investment ratio is higher, and excavation support sets up in transport and reclaims
It not the most easily during Deng.
Tunnel is in tunneling process, and owing to ature of coal is soft, Gas Outburst is serious, and developmental joint fissure, by heavily stressed geology
The impact of condition, constructional difficulties, and labor intensity are big, width side height top phenomenon usually occur, and U-shaped steel supporting is the most difficult,
Drift stability is poor, and in soft-rock tunnel, support element and connector damage the most serious.Use U steel supporting, this supporting shape
Formula belongs to passive protecting form, it is impossible to the basic top side stream coal that solves causes the phenomenons such as empty top, empty side, in high-ground stress effect
Under, deformation of timbering is serious, and supporting effect is poor, causes repeatability construction, has a strong impact on personal security, to working face extraction
And exploiting field takes over and causes extreme influence.
Summary of the invention
It is an object of the invention to provide a kind of practicality, heavily stressed prominent high seam safe, fast, efficient, small investment is put
Digging laneway method for arranging during the coal mining of top.
It is an object of the invention to be achieved through the following technical solutions:
Digging laneway method for arranging during the heavily stressed soft prominent high seam top coal caving of the present invention, tunnelling uses edge
Top driving, and use bolt-mesh-anchor support.
As seen from the above technical solution provided by the invention, the heavily stressed soft prominent thick coal that the embodiment of the present invention provides
Digging laneway method for arranging during layer top coal caving, owing to being the method using the edge top driving different from tradition driving, and
Use the way of bolt-mesh-anchor support, can efficiently solve that ature of coal is soft, Gas Outburst serious, developmental joint fissure, be subject to
The impact of heavily stressed geological conditions, constructional difficulties, labor intensity is big, Drift stability the is poor projecting coal bed driving of high methane
Problem, has been significantly increased production efficiency, promotes the development in colliery.
Accompanying drawing explanation
Digging laneway method for arranging during the heavily stressed soft prominent high seam top coal caving that Fig. 1 provides for the embodiment of the present invention
Arrange schematic diagram.
Detailed description of the invention
The embodiment of the present invention will be described in further detail below.
Digging laneway method for arranging during the heavily stressed soft prominent high seam top coal caving of the present invention, it is preferably concrete real
The mode of executing is:
Tunnelling uses along top driving, and uses bolt-mesh-anchor support.
Described in the middle of the excavation operation process of top, employing U steel gib and anchor rete cord gib, producing coal, operation completes
Afterwards, anchor rete cord is used to carry out permanent supporting process to whole along top digging laneway.
Described in the middle of the excavation operation process of top, use fully-mechanized digging machine driving, the transporting equipment that produces coal uses belt conveyor and scrapes
Plate transporter.
Driving face air feed uses booster, forced ventilation mode.
Described bolt-mesh-anchor support includes that top board bolt-mesh-anchor support and roadway's sides bolt-mesh-anchor support, described top board anchor rete cord prop up
Protecting employing W steel band and join plastic wire supporting, described roadway's sides bolt-mesh-anchor support uses anchor pole or anchor cable, plastic wire, steel bar ladder
Sub-beam combined supporting.
Digging laneway method for arranging during the heavily stressed prominent high seam top coal caving of the present invention, practical, safety, quickly,
Efficiently, small investment.Can solve soft to ature of coal, Gas Outburst is serious, and developmental joint fissure, by heavily stressed geological conditions
Impact, constructional difficulties, labor intensity is big, the technical barrier of Drift stability difference.
The application present invention, according to the prediction of tunneling process Gas and tunnel force analysis, determines and most preferably tunnels arrangement
For along top driving.Take advance boreholes technology, in conjunction with the reasonable monitoring to top board and base plate position coal seam thickness,
Prediction, along top digging laneway anterior position geological structure, determines rational supporting.In the middle of the excavation operation process of top, edge, main
Fully-mechanized digging machine to be used tunnels, and manually connects coal operation, coordinates the reasonable application of drag conveyor and Belt transport machine equipment, reaches
To the purpose to outward transport coal.Whole in the middle of the processing procedure of top driving, ventilation process and the guarantee in tunnel to be carried out are faced
Time supporting construction effective, just can carry out the operation of producing coal of coal driving, after operation of producing coal completes, for whole along top
Digging laneway uses anchor rete cord to carry out permanent supporting process.
Described piercing technique is that digging laneway is coal road along top driving.
Described is by comparing gas density, driving speed, the identical driving speed of employing and identical pick along top driving proposition
Development end gas emission, roof delamination size, roadway deformation, safety, coal recovery rate and cost when entering distance
Determine.
Described development machine, belt conveyor, scratch board conveyor, produce coal transporting equipment belt conveyor, scratch board conveyor
To match with fully-mechanized digging machine.
Described bolt-mesh-anchor support includes top board and roadway's sides, and top board uses W steel band to join plastic wire and (makes during roof cracking
With diamond mesh), roadway's sides uses anchor pole (rope), plastic wire, reinforcing bar ladder beam combined supporting.
Described driving face air feed all uses booster, forced ventilation mode.
Described permanent supporting is bolt-mesh-anchor support.
Described gib is U steel gib and anchor rete cord gib.
Specific embodiment:
As it is shown in figure 1, according to the prediction of tunneling process Gas and tunnel force analysis, determine that optimal driving arrangement is
Along top driving.Along top piercing technique take tradition geological method, in binding region Basic Geological structure data and
Mapping data message, is in research and analysis for the fault strike under complex geological condition.Meanwhile,
For emphasis suspects location, need to take advance boreholes technical approach, it is achieved to various along the tunneling process of top
It is likely to occur the conservative control of safety problem.On this basis, in the middle of the process of coal road tunnelling operation, need
Carry out pushing up the detection operation of ground coal according to interval 5m～10m unit, in conjunction with to top board and base plate position coal seam thickness
Rationally monitoring, reaches reasonable assessment and the judgement of top, prediction edge digging laneway anterior position geological structure situation of change, determines
Reasonably supporting.
In the middle of the excavation operation process of top, main employing fully-mechanized digging machine tunnels, and manually connects coal operation, coordinates drag conveyor
With the reasonable application of Belt transport machine equipment, reach the purpose to outward transport coal.Work as in the whole processing procedure along top driving
In, the ventilation process in tunnel to be carried out is effective with guarantee temporary support structures, just can carry out the work that produces coal of coal driving
Industry, after operation of producing coal completes, uses anchor rete cord to carry out permanent supporting process for whole along top digging laneway.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention is not limited thereto,
Any those familiar with the art in the technical scope of present disclosure, the change that can readily occur in or replace
Change, all should contain within protection scope of the present invention.Therefore, protection scope of the present invention should be with claims
Protection domain is as the criterion.
Claims (1)
1. digging laneway method for arranging during a heavily stressed soft prominent high seam top coal caving, it is characterised in that tunnel
Driving uses along top driving, and uses bolt-mesh-anchor support；
Described in the middle of the excavation operation process of top, employing U steel gib and anchor rete cord gib, producing coal, operation completes
Afterwards, anchor rete cord is used to carry out permanent supporting process to whole along top digging laneway；
Described in the middle of the excavation operation process of top, use fully-mechanized digging machine driving, the transporting equipment that produces coal uses belt conveyor and scrapes
Plate transporter；
Driving face air feed uses booster, forced ventilation mode；
Described bolt-mesh-anchor support includes that top board bolt-mesh-anchor support and roadway's sides bolt-mesh-anchor support, described top board anchor rete cord prop up
Protecting employing W steel band and join plastic wire supporting, described roadway's sides bolt-mesh-anchor support uses anchor pole or anchor cable, plastic wire, steel bar ladder
Sub-beam combined supporting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410165942.5A CN103899331B (en) | 2014-04-23 | 2014-04-23 | Digging laneway method for arranging during heavily stressed prominent high seam top coal caving |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410165942.5A CN103899331B (en) | 2014-04-23 | 2014-04-23 | Digging laneway method for arranging during heavily stressed prominent high seam top coal caving |
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| CN103899331A CN103899331A (en) | 2014-07-02 |
| CN103899331B true CN103899331B (en) | 2016-10-26 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405392B (en) * | 2014-10-16 | 2016-06-08 | 河南理工大学 | Three soft high seam tunnel jackings are kept on file anchor rete cord active support longwall top coal caving method |
| CN105758565B (en) * | 2016-03-03 | 2018-09-28 | 山东科技大学 | Coal roadway tunneling is met head on stress determination method and risk assessment method |
| CN111364996B (en) * | 2020-03-30 | 2021-09-21 | 淮南矿业(集团)有限责任公司 | Deep well coal uncovering method under complex geological condition of strong outburst coal seam |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3820700A1 (en) * | 1988-06-18 | 1989-12-21 | Ruhrkohle Ag | Compound anchor support system |
| RU2430237C1 (en) * | 2010-09-07 | 2011-09-27 | Анатолий Николаевич Осипов | Reinforcement method of mine workings with anchor support |
| CN102268998A (en) * | 2011-08-02 | 2011-12-07 | 山西潞安环保能源开发股份有限公司 | Dual-micro-arch span-reducing support method of large-span open-off cut |
| CN102817620A (en) * | 2012-08-13 | 2012-12-12 | 大同煤矿集团有限责任公司 | Method for supporting ultra-thick and fluffy coal roadway |
| CN103061788A (en) * | 2013-01-11 | 2013-04-24 | 江苏建筑职业技术学院 | Loose broken tunnel top plate reinforcing and supporting method |
| CN103174444A (en) * | 2013-02-26 | 2013-06-26 | 中国矿业大学(北京) | Support method and support structure for soft coal/ rock stratum alley |
| CN103603675A (en) * | 2013-09-20 | 2014-02-26 | 张瀚 | Supporting method of permeable soft broken rock stratum roadway |
-
2014
- 2014-04-23 CN CN201410165942.5A patent/CN103899331B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3820700A1 (en) * | 1988-06-18 | 1989-12-21 | Ruhrkohle Ag | Compound anchor support system |
| RU2430237C1 (en) * | 2010-09-07 | 2011-09-27 | Анатолий Николаевич Осипов | Reinforcement method of mine workings with anchor support |
| CN102268998A (en) * | 2011-08-02 | 2011-12-07 | 山西潞安环保能源开发股份有限公司 | Dual-micro-arch span-reducing support method of large-span open-off cut |
| CN102817620A (en) * | 2012-08-13 | 2012-12-12 | 大同煤矿集团有限责任公司 | Method for supporting ultra-thick and fluffy coal roadway |
| CN103061788A (en) * | 2013-01-11 | 2013-04-24 | 江苏建筑职业技术学院 | Loose broken tunnel top plate reinforcing and supporting method |
| CN103174444A (en) * | 2013-02-26 | 2013-06-26 | 中国矿业大学(北京) | Support method and support structure for soft coal/ rock stratum alley |
| CN103603675A (en) * | 2013-09-20 | 2014-02-26 | 张瀚 | Supporting method of permeable soft broken rock stratum roadway |
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