CN103628897A - Method for passing through top-coal caving region of roadway - Google Patents
Method for passing through top-coal caving region of roadway Download PDFInfo
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- CN103628897A CN103628897A CN201310650124.XA CN201310650124A CN103628897A CN 103628897 A CN103628897 A CN 103628897A CN 201310650124 A CN201310650124 A CN 201310650124A CN 103628897 A CN103628897 A CN 103628897A
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Abstract
The invention discloses a method for passing through a top-coal caving region of a roadway and belongs to the field of mine supports. The method comprises the following steps: firstly determining the position of the top-coal caving region in the roadway, and digging a side channel at the upper part of the top-coal caving region except the head-on position of the roadway; respectively building a grout stopping wall at the inner side and the outer side of the caving edge of the top-coal caving region with the need of digging the side channel and filling consolidating materials; reinforcing supports at a top plate of the front parts of the grout stopping walls, drilling holes to the top part of the top-coal caving region, arranging filling pipes in the holes of the top-coal caving region, filing the consolidating materials into the filling pipes so as to enable gangue in the range of the top-coal caving region to be consolidated into a whole body; according to the shape of the section of the roadway, arranging a pipe shed to provide a support at the positions of the grout stopping walls at the outer side of the top-coal caving region; digging out the caving gangue consolidated in the section of the roadway at the pipe shed, and reinforcing the support at the section of the roadway; and till digging the side channel to pass through the roadway of the top-coal caving region. The method disclosed by the invention has the advantages of simple process, strong universality, easy mastering by workers, low cost, less underground auxiliary transportation volume and high safety and reliability.
Description
Technical field
The present invention relates to a kind of by Gao Mao district, tunnel method, be particularly useful in a kind of coal mine down-hole tunnel by too high emit district pass through Gao Mao district, tunnel method.
Background technology
Coal mine roadway is in driving Bracing Process, when running into the geological structural belts such as tomography, Huen song or mining influence, the inbreak of normal generation back, the height of inbreak and length are usually different, and the spoil of inbreak can not completely densified, may there is space in the top of caved gangue, this type of tunnel cannot directly be passed from the below of caved gangue conventionally, if deal with improperly, not only affecting coal mine excavation takes over, and when construction can not get safely ensureing, must take special supporting method, could pass through reliably safely and fast Gao Maoqu.
Application number is: 201210008434.7 disclose a kind of too high district that emits fast and safely builds arch supporting method, leading temporary lining while adopting waste and old i iron or channel-section steel as excavation, in waste and old i iron or channel-section steel outside, successively woven cloth and steel mesh reinforcement or lead wire net are fixed on waste and old i iron or channel-section steel, become temporary lining ceiling, construction formwork after-pouring concrete, form the concrete arch body bearing structure of arch, but the method versatility is poor, complex process, labor strength is large, poor stability.
Summary of the invention
The object of the invention is to overcome the weak point in prior art, the method for simple, safe and reliable, quick tunnel Gao Maoqu of mistake that constructs a kind of is provided.
For realizing above-mentioned technical purpose, of the present inventionly by Gao Mao district, tunnel method, comprise the following steps:
A. determine that the top, Gao Mao district beyond position of meeting head on, ，Chu tunnel, position, Nei Gaomao district, tunnel excavates a by-pass;
B. 0.5m～1.5m the place, inside and outside both sides that is caving edge at the Gao Maoqu that need to excavate by-pass respectively builds wall for grouting by laying bricks or stones one, and the space filling cementing material in wall for grouting;
C. at the anterior top board of wall for grouting place, squeeze into anchor cable or hydraulic prop is set and filling pipe is set in adding the boring ，Gao Mao district boring of top, strong supporting ，Xiang Gaomao district, and the spoil of noting within the scope of filling cementing material ，Shi Gaomao district by filling pipe is consolidated into integral body;
D. according to the every spacing 300～400mm in wall for grouting position, outside in cross-section shape of roadway ，Cong Maogao district, pipe canopy is set supporting is provided;
E. by being arranged on fixed caved gangue in pipe canopy place drift section, dig out, and at drift section place, use U-shaped steel canopy to add strong supporting;
F. repeating step d and step e are until excavate by-pass by tunnel, Gao Mao district.
The by-pass section width of described excavation is 2～3m, is highly 1.6m～2.5m, is provided with supporting in by-pass, and described supporting is round log, anchor rete cord or H shaped steel shack supporting; Described wall for grouting is two or four fire dams or adds by plank, steel mesh reinforcement the hermetically-sealed construction that air duct fabric forms; To being in the caved gangue place of middle and lower part, Gao Mao district, to carry out slip casting cementing, strengthens the globality of caved gangue; Described pipe canopy is the steel pipe of diameter 1～2 inch, and the length of steel pipe is between 2～6m, the elevation angle of pipe canopy is set between 5～15 °, and the pressure stubble length of pipe canopy is 0.6～1.5m; Described U-shaped steel canopy is apart from being 0.6～1.2m, and U-shaped steel canopy Tui fixes with pull bar.
Beneficial effect: this method is caving excavation by-pass, edge at Gao Maoqu, its technique is simple, highly versatile, and workman easily grasps, cost is low, down-hole assistant conveyance amount is little, security reliability is high, has in the art practicality widely.
Accompanying drawing explanation
Fig. 1 is Gao Mao district, tunnel of the present invention schematic diagram.
Fig. 2 is the top view of constructing by-pass of the present invention.
Fig. 3 is that filling wall for grouting of the present invention is constructed schematic diagram.
Fig. 4 is filling schematic diagram in wall for grouting Yu Gaomao of the present invention district.
Fig. 5 is the complete rear schematic diagram of tunnel of the present invention Gao Mao district filling.
Fig. 6 is pipe canopy of the present invention and U-shaped steel supporting schematic diagram.
Fig. 7 is pipe canopy of the present invention and U-shaped steel supporting sectional view
Fig. 8 is filling of the present invention by-pass schematic diagram.
1-tunnel, 2-caved gangue, 3-emits dead zone, 4-by-pass, 5-wall for grouting, 6-cementing material, 7-filling pipe, 8-manages canopy, 9-U type steel shed.
The specific embodiment
Below in conjunction with accompanying drawing, one embodiment of the present of invention are described in further detail:
As shown in Figures 1 to 8, of the present inventionly by Gao Mao district, tunnel method, comprise the following steps:
A. determine that 3 tops, Gao Mao district beyond position of meeting head on, 3 ，Chu tunnels, position, 1 Nei Gaomao district, tunnel excavate by-passes 4;
B. at 0.5m～1.5m place, inside and outside both sides that need to excavate Gao Mao district, by-pass 3 and be caving edge, respectively build wall for grouting 5 by laying bricks or stones one, and the space filling cementing material in wall for grouting 5, and to carry out slip casting cementing to being in the caved gangue place of 3 middle and lower parts, Gao Mao district, the globality that strengthens caved gangue, described wall for grouting 5 is two or four fire dams or adds by plank, steel mesh reinforcement the hermetically-sealed construction that air duct fabric forms; The by-pass section width of described excavation is 2～3m, is highly 1.6m～2.5m, is provided with supporting in by-pass, and described supporting is round log, anchor rete cord or H shaped steel shack supporting;
C. at the anterior top board of wall for grouting 5 place, squeeze into anchor cable or hydraulic prop is set and add strong supporting, the 3 top borings of Xiang Gaomao district, in 3 borings of Gao Mao district, filling pipe 7 is set, and is consolidated into integral body by the spoil in filling pipe 7 notes filling cementing material ，Shi Gaomao district 3 scopes;
D. according to tunnel 1 section configuration, the outside wall for grouting 5 every spacing 300～400mm in position in Cong Maogao district 3 arrange pipe canopy 8 supporting are provided, described pipe canopy 8 is the steel pipe of diameter 1～2 inch, the length of steel pipe is between 2～6m, the elevation angle of pipe canopy 8 is set between 5～15 °, the pressure stubble length of pipe canopy 8 is 0.6～1.5m, and described U-shaped steel canopy 9 is apart from being 0.6～1.2m, and U-shaped steel canopy Tui fixes with pull bar;
E. by being arranged on fixed caved gangue in pipe canopy 8 place's drift sections, dig out, and 1 section part is used U-shaped steel canopy 9 to add strong supporting in tunnel;
F. repeating step d and step e are until excavate by-pass 4 by 3 tunnels, Gao Mao district.
Claims (6)
1. by Gao Mao district, a tunnel method, it is characterized in that comprising the following steps:
A. determine an excavation by-pass (4), Gao Maoqu (3) top of meeting head on beyond position in ，Chu tunnel, interior the Gao Maoqu in tunnel (1) (3) position;
B. 0.5m～1.5m the place, inside and outside both sides that is caving edge at the Gao Maoqu (3) that need to excavate by-pass respectively builds one wall for grouting (5) by laying bricks or stones, and the space filling cementing material in wall for grouting (5);
C. at the anterior top board of wall for grouting (5) place, squeeze into anchor cable or hydraulic prop is set and add strong supporting, to Gao Maoqu (3) top, hole, in Gao Maoqu (3) boring, filling pipe (7) is set, and note filling cementing material by filling pipe (7), make the spoil in Gao Maoqu (3) scope be consolidated into integral body;
D. according to the every spacing 300～400mm in outside wall for grouting (5) position in section configuration ，Cong Maogao district, tunnel (1) (3), pipe canopy (8) is set supporting is provided;
E. by being arranged on pipe canopy (8), locating fixed caved gangue in drift section and dig out, and (1) section part is used U-shaped steel canopy (9) to add strong supporting in tunnel;
F. repeating step d and step e are until excavate by-pass (4) by Gao Maoqu (3) tunnel.
2. according to claim 1 a kind of by Gao Mao district, tunnel method, it is characterized in that: the by-pass section width of described excavation is 2～3m, be highly 1.6m～2.5m, be provided with supporting in by-pass, described supporting is round log, anchor rete cord or H shaped steel shack supporting.
3. according to claim 1 a kind of by Gao Mao district, tunnel method, it is characterized in that: described wall for grouting (5) is two or four fire dams or adds by plank, steel mesh reinforcement the hermetically-sealed construction that air duct fabric forms.
4. according to claim 1 a kind of by Gao Mao district, tunnel method, it is characterized in that: described to being in the caved gangue place of Gao Maoqu (3) middle and lower part, to carry out slip casting cementing, strengthens the globality of caved gangue.
5. according to claim 1 a kind of by Gao Mao district, tunnel method, it is characterized in that: described pipe canopy (8) is the steel pipe of diameter 1～2 inch, the length of steel pipe is between 2～6m, the elevation angle of pipe canopy (8) is set between 5～15 °, the pressure stubble length of pipe canopy (8) is 0.6～1.5m.
6. according to claim 1 a kind of by Gao Mao district, tunnel method, it is characterized in that: described U-shaped steel canopy (9) is apart from being 0.6～1.2m, and U-shaped steel canopy Tui fixes with pull bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310650124.XA CN103628897B (en) | 2013-12-06 | 2013-12-06 | A kind of by tunnel caving place method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310650124.XA CN103628897B (en) | 2013-12-06 | 2013-12-06 | A kind of by tunnel caving place method |
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| CN103628897A true CN103628897A (en) | 2014-03-12 |
| CN103628897B CN103628897B (en) | 2016-02-24 |
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| CN201310650124.XA Expired - Fee Related CN103628897B (en) | 2013-12-06 | 2013-12-06 | A kind of by tunnel caving place method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150206A (en) * | 2017-11-16 | 2018-06-12 | 大同煤矿集团有限责任公司 | A kind of method by fully-mechanized mining working crossheading caving place |
| CN110067573A (en) * | 2019-04-26 | 2019-07-30 | 西和县中宝矿业有限公司 | A kind of quick improvement and the construction method for passing through the crushed zone that caved in |
| CN110067579A (en) * | 2019-04-22 | 2019-07-30 | 永城煤电控股集团有限公司 | A kind of ultra-thin rock pillar heavy equipment crosses lane method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101718209A (en) * | 2009-12-16 | 2010-06-02 | 山西晋城无烟煤矿业集团有限责任公司 | Processing method of passing sunk pillars on full-mechanized mining working face |
| CN102425428A (en) * | 2011-09-12 | 2012-04-25 | 山东科技大学 | Method for controlling extreme broken roof in roadway head |
| CN102704965A (en) * | 2012-05-21 | 2012-10-03 | 严红 | Method for preventing tunnel top plate collapse risk caused by severe mining |
| CN102720535A (en) * | 2012-06-06 | 2012-10-10 | 旬邑虎豪黑沟煤业有限公司 | Method for preventing goaf air leakage during soft rock crack development coal seam mining of coal mine |
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2013
- 2013-12-06 CN CN201310650124.XA patent/CN103628897B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101718209A (en) * | 2009-12-16 | 2010-06-02 | 山西晋城无烟煤矿业集团有限责任公司 | Processing method of passing sunk pillars on full-mechanized mining working face |
| CN102425428A (en) * | 2011-09-12 | 2012-04-25 | 山东科技大学 | Method for controlling extreme broken roof in roadway head |
| CN102704965A (en) * | 2012-05-21 | 2012-10-03 | 严红 | Method for preventing tunnel top plate collapse risk caused by severe mining |
| CN102720535A (en) * | 2012-06-06 | 2012-10-10 | 旬邑虎豪黑沟煤业有限公司 | Method for preventing goaf air leakage during soft rock crack development coal seam mining of coal mine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150206A (en) * | 2017-11-16 | 2018-06-12 | 大同煤矿集团有限责任公司 | A kind of method by fully-mechanized mining working crossheading caving place |
| CN108150206B (en) * | 2017-11-16 | 2019-11-19 | 大同煤矿集团有限责任公司 | A method of passing through fully-mechanized mining working crossheading caving place |
| CN110067579A (en) * | 2019-04-22 | 2019-07-30 | 永城煤电控股集团有限公司 | A kind of ultra-thin rock pillar heavy equipment crosses lane method |
| CN110067573A (en) * | 2019-04-26 | 2019-07-30 | 西和县中宝矿业有限公司 | A kind of quick improvement and the construction method for passing through the crushed zone that caved in |
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| Publication number | Publication date |
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| CN103628897B (en) | 2016-02-24 |
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Granted publication date: 20160224 Termination date: 20161206 |