CN103867213B - Prevent colliery from containing seat earth gas and reveal the combined construction method be out of shape with pucking - Google Patents
Prevent colliery from containing seat earth gas and reveal the combined construction method be out of shape with pucking Download PDFInfo
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- CN103867213B CN103867213B CN201410115405.XA CN201410115405A CN103867213B CN 103867213 B CN103867213 B CN 103867213B CN 201410115405 A CN201410115405 A CN 201410115405A CN 103867213 B CN103867213 B CN 103867213B
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Abstract
The invention belongs to mining safety field, be specifically related to a kind of combined construction method preventing from colliery from containing seat earth gas leakage and pucking being out of shape.The present invention is in roadway's sides base angle place and the boring of base plate place, steel pipe is inserted in each hole, described diameter of steel tube is less than bore diameter, several through holes are evenly distributed with in steel pipe lower surface, doughnut-shaped steel plate is welded with via regions with containing via regions intersection at steel pipe, sheathed circular ring type cushion rubber layer on doughnut-shaped steel plate, filling concrete between each steel pipe and boring; After filling, with steel plate joint steel pipe upper end, by each fastener for connection integrally, and with pallet and nut, steel pipe is fixed in boring, finally wedges with timber wedge the gap that both sides steel pipe and two helps respectively.The present invention in work progress by gas pumping with prevent from pucking to be out of shape two kinds of operations uniting two into one, improve efficiency of construction greatly, reduce mining cost, and effectively can ensure mining safety.
Description
Technical field
The invention belongs to mining safety field, be specifically related to a kind of combined construction method preventing from colliery from containing seat earth gas leakage and pucking being out of shape.
Background technology
In coal seam in the tunneling process of tunnel, inevitably expose a large amount of gas, especially in roadway support process owing to adopting bolt support, gas will overflow from armature boring, brings serious potential safety hazard to mining safety.Mostly gas density is diluted by holing and drawing out methane in prior art.
In addition along with mining depth strengthens, laneway stress increases, and roadway deformation is serious, and base plate exists pucking distortion in various degree.A large amount of technology is there is as carried out the method for supporting by anchor pole, anchor cable and flexible steelframe etc. in prior art.But be only single from wherein considering on the one hand in current technological means, not a kind of technology of gas leakage and pucking distortion being carried out to combined governance, this just causes cost in mining process to increase, and efficiency reduces simultaneously.
Summary of the invention
for prior art Problems existing, the invention provides a kind of combined construction method preventing from colliery from containing seat earth gas leakage and pucking being out of shape, simultaneously object carries out pucking control in gas control process, reduces mining cost, and greatly increase work efficiency.
To achieve these goals, the combined construction method preventing from colliery from containing seat earth gas leakage and pucking being out of shape of the present invention, carries out according to following steps:
(1) use rig at roadway's sides base angle place, along the direction with base plate-60 ° of angles at 45 °, hole outside tunnel, simultaneously at base plate place, along vertical base plate direction, bore holes downwards, the degree of depth in above-mentioned each hole is at least 3 meters and reaches containing coal seam, and the spacing in each hole is equal;
(2) boring after, along hole wherein charged pressure be preferably at least 10 atmospheric gases at high pressure, presplitting is carried out to coal seam in hole;
(3) after presplitting completes, steel pipe is inserted in each hole, described diameter of steel tube is less than bore diameter, several through holes are evenly distributed with in steel pipe lower surface, doughnut-shaped steel plate is welded with via regions with containing via regions intersection at steel pipe, sheathed circular ring type cushion rubber layer on doughnut-shaped steel plate, doughnut-shaped steel plate external diameter is equal with bore diameter;
(4) in tunnel, lay extraction pipeline, carry out conventional extraction by after fastener for connection in each hole, while extraction, filling concrete between each steel pipe and boring; After filling, with steel plate joint steel pipe upper end, by each fastener for connection integrally, and with pallet and nut, steel pipe is fixed in boring, finally wedges with timber wedge the gap that both sides steel pipe and two helps respectively;
(5) repeat above-mentioned steps, construct forward according to certain array pitch, until complete whole roadway construction.
Described gases at high pressure are carbon dioxides.
Compared with prior art, feature of the present invention and beneficial effect are:
The present invention adopts steel pipe as gas pumping pipe, and simultaneously as floor lift control anchor pole, like this in work progress by gas pumping with prevent from pucking to be out of shape two kinds of operations uniting two into one, improve efficiency of construction greatly, reduce mining cost, and effectively can ensure mining safety.
Adopting gases at high pressure to carry out presplitting to coal seam in hole in the present invention, is to increase cracks in coal seam, is beneficial to gas release.
The present invention is also provided with doughnut-shaped steel plate separation layer and is isolated in anchorage zone and extraction district in steel pipe, avoid the concrete seepage in anchorage zone and affect extraction quality, and be provided with cushion coat and base sheet stresses effectively can be discharged, again by the support with bolting bottom deformation of steel pipe anchor rod, gas control and pucking can control to combine by the construction technology formed thus, create useful technique effect.
Accompanying drawing explanation
Fig. 1 is coal mine roadway profile;
Fig. 2 is the partial enlarged drawing of the half of base plate in tunnel in Fig. 1;
Wherein: 1: tunnel is helped; 2: timber wedge: 3: nut; 4: pallet; 5: steel plate; 6: steel pipe; 7: cushion rubber layer; 8: doughnut-shaped steel plate; 9: through hole; 10: concrete.
Detailed description of the invention
Below in conjunction with Reference numeral, clear complete description is carried out to technical scheme of the present invention, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention, if belong within the scope of the claims in the present invention and equivalent technologies to these amendments of the present invention and modification, then the present invention also comprises these change and modification.
The combined construction method preventing from colliery from containing seat earth gas leakage and pucking being out of shape, Specific construction step is as follows:
(1) use rig at roadway's sides base angle place, as depicted in figs. 1 and 2, along the direction with base plate-60 ° of angles at 45 °, hole outside tunnel, simultaneously at base plate place, along vertical base plate direction, bore holes downwards, the degree of depth in above-mentioned each hole is at least 3 meters and reaches containing coal seam, and the spacing in each hole is equal;
(2), after boring, be filled with preferred pressure wherein along hole and be at least 10 atmospheric gases at high pressure, presplitting is carried out to coal seam in hole;
(3) after presplitting completes, steel pipe 6 is inserted in each hole, described diameter of steel tube is less than bore diameter, several through holes 9 are evenly distributed with in steel pipe 6 lower surface, doughnut-shaped steel plate 8 is welded with through hole 9 region with containing via regions intersection at steel pipe 6, on doughnut-shaped steel plate 8, sheathed thickness is the circular ring type cushion rubber layer 7 of 35cm, and doughnut-shaped steel plate 8 external diameter is equal with bore diameter;
(4) in tunnel, lay extraction pipeline, carry out conventional extraction by after fastener for connection in each hole, while extraction, filling concrete 10 between each steel pipe 6 and boring; After filling, with steel plate 5 joint steel pipe 6 upper end, each steel pipe 6 is connected into entirety, and with pallet 4 and nut 3, steel pipe 6 is fixed in boring, finally wedge both sides steel pipe 6 and two gaps helped respectively with timber wedge 2;
(5) repeat above-mentioned steps, construct forward according to certain array pitch, until complete whole roadway construction.
Claims (2)
1. the combined construction method preventing from colliery from containing seat earth gas leakage and pucking being out of shape, is characterized in that carrying out according to following steps:
(1) use rig at roadway's sides base angle place, along the direction with base plate-60 ° of angles at 45 °, hole outside tunnel, simultaneously at base plate place, along vertical base plate direction, downward brill holes, the degree of depth in above-mentioned each hole is at least 3 meters and reaches containing coal seam, and in described each hole, the spacing of adjacent holes is equal;
(2) boring after, along hole wherein charged pressure be preferably at least 10 atmospheric gases at high pressure, presplitting is carried out to coal seam in hole;
(3) after presplitting completes, steel pipe is inserted in each hole, described diameter of steel tube is less than bore diameter, several through holes are evenly distributed with in steel pipe lower surface, doughnut-shaped steel plate is welded with via regions with containing via regions intersection at steel pipe, sheathed circular ring type cushion rubber layer on doughnut-shaped steel plate, doughnut-shaped steel plate external diameter is equal with bore diameter;
(4) in tunnel, lay extraction pipeline, carry out conventional extraction by after fastener for connection in each hole, while extraction, filling concrete between each steel pipe and boring; After filling, with steel plate joint steel pipe upper end, by each fastener for connection integrally, and with pallet and nut, steel pipe is fixed in boring, finally wedges with timber wedge the gap that both sides steel pipe and two helps respectively;
(5) repeat above-mentioned steps, construct forward according to certain array pitch, until complete whole roadway construction.
2. a kind of combined construction method preventing from colliery from containing seat earth gas leakage and pucking being out of shape according to claim 1, is characterized in that described gases at high pressure are carbon dioxides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410115405.XA CN103867213B (en) | 2014-03-26 | 2014-03-26 | Prevent colliery from containing seat earth gas and reveal the combined construction method be out of shape with pucking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410115405.XA CN103867213B (en) | 2014-03-26 | 2014-03-26 | Prevent colliery from containing seat earth gas and reveal the combined construction method be out of shape with pucking |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103867213A CN103867213A (en) | 2014-06-18 |
| CN103867213B true CN103867213B (en) | 2015-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410115405.XA Expired - Fee Related CN103867213B (en) | 2014-03-26 | 2014-03-26 | Prevent colliery from containing seat earth gas and reveal the combined construction method be out of shape with pucking |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401603B (en) * | 2016-12-12 | 2020-06-16 | 煤炭科学技术研究院有限公司 | Method for controlling bottom bulging of inverted arch beam of soft rock roadway |
| CN106907170B (en) * | 2017-04-29 | 2023-03-03 | 陕西省建筑职工大学 | Roadway bottom plate supporting structure and construction method |
| CN107130988B (en) * | 2017-07-10 | 2023-08-25 | 中南大学 | Liquid carbon dioxide blasting anti-reflection grouting composite anchor rod |
| CN110242223B (en) * | 2019-05-21 | 2020-12-08 | 王润 | Protective drilling device for coal seam gas extraction |
| CN111022095A (en) * | 2019-10-29 | 2020-04-17 | 中国矿业大学 | Supporting structure and supporting method for preventing roadway floor heave |
| CN113605927B (en) * | 2021-09-03 | 2022-07-12 | 淮北市平远软岩支护工程技术有限公司 | Support method for soft rock roadway surrounding rock under high rock burst stress |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5564866A (en) * | 1995-04-10 | 1996-10-15 | Snyder; Raymond M. | Reusable mine and underground roof, floor, and rib support system |
| CN101509383A (en) * | 2009-03-24 | 2009-08-19 | 徐州工程学院 | Tunnel footing anchor pouring reinforcement anti bottom expanding method and construction technique |
| CN102852528A (en) * | 2012-04-01 | 2013-01-02 | 中国矿业大学 | Method for controlling floor heave through inverted arch anchoring beam |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5308196B1 (en) * | 1993-03-23 | 1999-06-22 | Coastal Corp | Yieldable confined core mine roof support |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5564866A (en) * | 1995-04-10 | 1996-10-15 | Snyder; Raymond M. | Reusable mine and underground roof, floor, and rib support system |
| CN101509383A (en) * | 2009-03-24 | 2009-08-19 | 徐州工程学院 | Tunnel footing anchor pouring reinforcement anti bottom expanding method and construction technique |
| CN102852528A (en) * | 2012-04-01 | 2013-01-02 | 中国矿业大学 | Method for controlling floor heave through inverted arch anchoring beam |
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| CN103867213A (en) | 2014-06-18 |
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Granted publication date: 20150916 |