CN102518452A - Rapid and safe arch supporting method in process of passing through top-coal caving region - Google Patents
Rapid and safe arch supporting method in process of passing through top-coal caving region Download PDFInfo
- Publication number
- CN102518452A CN102518452A CN2012100084347A CN201210008434A CN102518452A CN 102518452 A CN102518452 A CN 102518452A CN 2012100084347 A CN2012100084347 A CN 2012100084347A CN 201210008434 A CN201210008434 A CN 201210008434A CN 102518452 A CN102518452 A CN 102518452A
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- Prior art keywords
- channel
- tunnel
- steel
- arch
- iron
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- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000003245 coal Substances 0.000 title abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 51
- 239000010959 steel Substances 0.000 claims abstract description 51
- 239000002699 waste material Substances 0.000 claims abstract description 6
- 239000004744 fabric Substances 0.000 claims abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 42
- 229910052742 iron Inorganic materials 0.000 claims description 21
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 17
- 230000002787 reinforcement Effects 0.000 claims description 17
- 239000004568 cement Substances 0.000 abstract description 4
- 238000009415 formwork Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 230000005641 tunneling Effects 0.000 abstract description 2
- 230000003014 reinforcing effect Effects 0.000 abstract 2
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
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- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a rapid and safe arch supporting method for a top-coal caving region of a coal mine roadway. The rapid and safe arch supporting method comprises the following steps of: taking waste I-shaped steel or grooved steel as an ahead temporary support for roadway tunneling; fixing the waste I-shaped steel or grooved steel on the surface of a supported roadway, and sequentially fixing woven cloth and reinforcing meshes or square hole wire meshes outside the waste I-shaped steel or grooved steel so as to form a temporary support shed roof; under the temporary support of the shed roof, constructing formworks, and pouring cement concrete between the formworks and the reinforcing meshes or square hole wire meshes till the top part of the roadway; forming an arched concrete arch masonry bearing structure at the lower part of the top-coal caving region after the cement concrete is cured; and adopting a minor-cycle operation of about 1m, performing in cycle according to the steps, thereby passing through the top-coal caving region safely and rapidly. For the top-coal caving region of the roadway, rapid and safe construction is hard to ensure by the adoption of other methods, but the top-coal caving region can be safely and rapidly passed through by the adoption of the rapid and safe arch supporting method disclosed by the invention.
Description
Technical field
The present invention relates to a kind of too high district that emits and fast and safely build the arch supporting method, especially a kind of coal mine roadway Gao Maoqu fast and safely builds the arch supporting method.
Background technology
Gao Maoqu refers in tunneling into the lane process, because of roof caving surpass normal tunnel design height 500mm and more than, volume is greater than the tunnel headroom of 0.5m3; Coal mine roadway receives geological conditions and mining influence in driving supporting process, often run into this type of Gao Maoqu; Height emits sector width, length and inbreak highly usually to have nothing in common with each other, and these regional top boards do not have complete inbreak compacting, but forms nest shape inbreak zone; The roof collapse height is 5～6m even higher, can directly see and emit backward top board, and the tunnel can't directly be passed from the spoil below of inbreak; If this type of zone is dealt with improperly, not only influence driving speed, and safety can not get ensureing; Special support pattern must be taked, Gao Maoqu could be passed through safely and fast.
Summary of the invention
Technical problem to be solved by this invention is how to pass through Gao Maoqu quickly and safely.
In order to solve the problems of the technologies described above, the present invention provides a kind of too high district that emits fast and safely to build the arch supporting method, and said supporting method may further comprise the steps:
Step 2, constructor stand in the good below, tunnel of supporting, and steel mesh reinforcement or lead wire net are placed on the outside of said five channel-section steels or i iron and overlap 100mm with the tunnel extranets of building arch, and per 100～200mm is with No. 8 galvanized wire fastenings for this overlap joint section;
Further, after accomplishing said step 4, adopt the partial circulating operating type of 600mm～1000mm again,, go round and begin again, just can pass through Gao Maoqu smoothly according to said step 1 to four operation.
As a kind of preferred version, described channel-section steel or i iron are waste and old channel-section steel or i iron.
Beneficial effect of the present invention is: the inventive method utilize supporting good the tunnel as a setting, adopt channel-section steel and lead wire net or steel mesh reinforcement to make skeleton, formation temporary lining ceiling; Under the temporary lining of ceiling; Construction formwork; And between template and steel mesh reinforcement or lead wire net the joints cement concrete; Until the top, tunnel, cement concrete solidifies the back and emits the bottom, district to form the concrete arch body bearing structure of an arch at height, and this method can guarantee the Gao Maoqu that passes through fast and safely.
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is described in further detail.
Description of drawings
Fig. 1 is the structural representation that adopts the supporting ceiling that the inventive method constructs;
Fig. 2 is the A-A sectional drawing of Fig. 1 of the present invention.
Among the figure: 1, channel-section steel or i iron; 2, steel mesh reinforcement or lead wire net; 3, woven cloth; 4, the galvanized wire that connects channel-section steel or i iron and steel mesh reinforcement or lead wire net; 5, build the arch inner formword; 6, concrete; 7, steel mesh reinforcement or lead wire net overlap joint section; 8, inbreak spoil, 9, supporting good the tunnel.
The specific embodiment
As depicted in figs. 1 and 2, the present invention provides a kind of too high district that emits fast and safely to build the arch supporting method, and said supporting method may further comprise the steps:
Step 2, constructor stand in 9 belows, the good tunnel of supporting; Steel mesh reinforcement or lead wire net 2 are placed on the outside of said five channel-section steels or i iron and overlap 100mm (reserving 100mm when arch is built in a last circulation is used for next one circulation overlap joint) with the tunnel extranets of building arch, and 7 per 100～200mm are with No. 8 galvanized wire fastenings for this overlap joint section;
Protection domain of the present invention is not limited to the foregoing description, and every technology distortion of doing according to know-why of the present invention all falls within protection scope of the present invention.
Claims (3)
1. the arch supporting method is fast and safely built in the too high district that emits, and it is characterized in that said supporting method may further comprise the steps:
Step 1, in the good tunnel of supporting, five channel-section steels or i iron are fixed on this wall, said five channel-section steels or i iron stretch out the good tunnel 600mm～1000mm of supporting;
Step 2, constructor stand in the good below, tunnel of supporting, and steel mesh reinforcement or lead wire net are placed on the outside of said five channel-section steels or i iron and overlap 100mm with the tunnel extranets of building arch, and per 100～200mm is with No. 8 galvanized wire fastenings for this overlap joint section;
Step 3, under the protection of said five channel-section steels or I-steel and bar-mat reinforcement or lead wire net; Woven cloth is placed between these five channel-section steels or I-steel and bar-mat reinforcement or the lead wire net, and is that the galvanized wire of 300mm～1000mm is fixed on said bar-mat reinforcement or lead wire net on said five channel-section steels or the I-steel with length;
Step 4, begin from the tunnel two lateral wall portions that said five channel-section steels or i iron stretch out; Place to build the arch inner formword along this roadway floor to top, tunnel, and in this template concreting, after concrete height to be built reaches the template height of placement; Continue to place template again; And in template concreting, by that analogy, the concrete of building until both sides is till the closure of top, tunnel.
2. the arch supporting method is fast and safely built in the too high district that emits according to claim 1, it is characterized in that, after accomplishing said step 4; Adopt the partial circulating operating type of 600mm～1000mm again; According to said step 1 to four operation, go round and begin again, just can pass through Gao Maoqu smoothly.
3. the arch supporting method is fast and safely built in the too high district that emits according to claim 1 and 2, it is characterized in that described channel-section steel or i iron are waste and old channel-section steel or i iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210008434.7A CN102518452B (en) | 2012-01-12 | 2012-01-12 | Rapid and safe arch supporting method in process of passing through top-coal caving region |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210008434.7A CN102518452B (en) | 2012-01-12 | 2012-01-12 | Rapid and safe arch supporting method in process of passing through top-coal caving region |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102518452A true CN102518452A (en) | 2012-06-27 |
| CN102518452B CN102518452B (en) | 2014-03-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210008434.7A Expired - Fee Related CN102518452B (en) | 2012-01-12 | 2012-01-12 | Rapid and safe arch supporting method in process of passing through top-coal caving region |
Country Status (1)
| Country | Link |
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| CN (1) | CN102518452B (en) |
Cited By (1)
| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3248781A1 (en) * | 1982-12-31 | 1984-07-05 | Tiefbau Union GmbH & Co KG, 4600 Dortmund | Arrangement for holding formwork for the placement of concrete, in particular in underground roadway support |
| CN101749034A (en) * | 2010-02-10 | 2010-06-23 | 辽宁工程技术大学 | Shoring method for prolonging service cycle of soft rock laneway |
| CN101852083A (en) * | 2010-04-16 | 2010-10-06 | 中国科学院武汉岩土力学研究所 | Quick supporting method for large-deformation roadway easy to fall, break and loosen and apparatus thereof |
| CN201738935U (en) * | 2010-09-03 | 2011-02-09 | 中国水利水电第七工程局有限公司 | Chamber arch jet molding concrete construction structure |
-
2012
- 2012-01-12 CN CN201210008434.7A patent/CN102518452B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3248781A1 (en) * | 1982-12-31 | 1984-07-05 | Tiefbau Union GmbH & Co KG, 4600 Dortmund | Arrangement for holding formwork for the placement of concrete, in particular in underground roadway support |
| CN101749034A (en) * | 2010-02-10 | 2010-06-23 | 辽宁工程技术大学 | Shoring method for prolonging service cycle of soft rock laneway |
| CN101852083A (en) * | 2010-04-16 | 2010-10-06 | 中国科学院武汉岩土力学研究所 | Quick supporting method for large-deformation roadway easy to fall, break and loosen and apparatus thereof |
| CN201738935U (en) * | 2010-09-03 | 2011-02-09 | 中国水利水电第七工程局有限公司 | Chamber arch jet molding concrete construction structure |
Non-Patent Citations (1)
| Title |
|---|
| 何满潮等: "兴安矿深部软岩巷道大面积高冒落支护设计研究", 《岩石力学与工程学报》 * |
Cited By (2)
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102518452B (en) | 2014-03-19 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CI01 | Publication of corrected invention patent application |
Correction item: Second inventor Correct: Zheng Junyu False: Zheng Junmao Number: 26 Volume: 28 |
|
| CI02 | Correction of invention patent application |
Correction item: Second inventor Correct: Zheng Junyu False: Zheng Junmao Number: 26 Page: The title page Volume: 28 |
|
| ERR | Gazette correction |
Free format text: CORRECT: THE SECOND INVENTOR; FROM: ZHENG JUNMAO TO: ZHENG JUNYU |
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| RECT | Rectification | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200525 Address after: 046000 No.4 commercial house, building 9, Beicheng street, Changzhi City, Shanxi Province (No.34, Xinying Street) Patentee after: Shanxi Zhongkuang Weite Mining Technology Development Co.,Ltd. Address before: 454000 Century Avenue, Jiaozuo high tech Zone, Henan, No. 2001 Patentee before: HENAN POLYTECHNIC University |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140319 |
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| CF01 | Termination of patent right due to non-payment of annual fee |