CN105649673A - Roadside gangue mixture filling and gob-side entry retaining method for large-dip angle coal seams - Google Patents
Roadside gangue mixture filling and gob-side entry retaining method for large-dip angle coal seams Download PDFInfo
- Publication number
- CN105649673A CN105649673A CN201610005392.XA CN201610005392A CN105649673A CN 105649673 A CN105649673 A CN 105649673A CN 201610005392 A CN201610005392 A CN 201610005392A CN 105649673 A CN105649673 A CN 105649673A
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- China
- Prior art keywords
- cash
- coagulation
- serosity
- lane
- gob
- Prior art date
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- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000003245 coal Substances 0.000 title claims abstract description 13
- 239000000203 mixture Substances 0.000 title abstract 4
- 230000015271 coagulation Effects 0.000 claims abstract description 28
- 238000005345 coagulation Methods 0.000 claims abstract description 28
- 238000005065 mining Methods 0.000 claims abstract description 10
- 230000008093 supporting effect Effects 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 5
- 239000010959 steel Substances 0.000 claims abstract description 5
- 230000003245 working effect Effects 0.000 claims description 12
- 230000002787 reinforcement Effects 0.000 claims description 9
- 239000004744 fabric Substances 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000004568 cement Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 3
- 239000002562 thickening agent Substances 0.000 claims description 3
- 230000005641 tunneling Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 2
- 239000011440 grout Substances 0.000 abstract 3
- 238000005086 pumping Methods 0.000 abstract 1
- 239000011435 rock Substances 0.000 abstract 1
- 238000007598 dipping method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
- E21F15/005—Methods or devices for placing filling-up materials in underground workings characterised by the kind or composition of the backfilling material
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
- E21F15/02—Supporting means, e.g. shuttering, for filling-up materials
- E21F15/04—Stowing mats; Goaf wire netting; Partition walls
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The invention discloses a roadside gangue mixture filling and gob-side entry retaining method for large-dip angle coal seams. The method is suitable for gob-side retaining of mining roadways through the steep long wall mining method. The method comprises the steps of comprehensively processing and transporting filling coagulation grout, advancing a working surface and supports, erecting the roadway retaining and gangue stopping supporting supports, laying fence nets, laying grouting pipelines and pumping the coagulation grout. The coagulation grout is conveyed to the grouting pipelines for bonding gangue sliding down into a whole on the side, close to a section haulage way, of a gob in the back of a stoping working surface, a complex bearing structure with gangue mixture filling bodies and steel bar meshes as the main part is formed, when the filling bodies formed earliest reach the design strength, the supports are not needed for supporting, and the roadway retaining and gangue stopping supporting supports erected earlier can be advanced and moved forwards along with the working surface and act on the gangue mixture filling bodies newly formed. According to the method, the comprehensive investment is low, movement of gob-side entry retaining top plates can be effectively controlled through the bearing structure, roadway surrounding rock can keep stable and the lateral gangue stopping effect can be realized. In addition, the method is simple, construction is easy and the effect is good.
Description
Technical field
The other cash in the large-inclination-angle coal bed lane of the one that the present invention relates to is palmed off as and is filled out gob-side entry retaining method, is particularly suited for high-dipping and moves towards staying along sky of long-armed coal-mining method stope drift active workings and set.
Background technology
Edge air gallery technology is stope drift active workings for upper work surface, in working face extraction process, by constructing roadside support body (body of wall such as intensive prop, spoil bag, high percentage of water rapid solidifying material filled wall, concrete block) at edge, goaf, being remained, stope drift active workings as lower work surface use. Production practices show, this technology has reduction tunnelling rate, reclaims protection pillar, realizes the advantages such as Y type ventilation, is at home and abroad widely applied in coal production, bring very big economic and social benefit to colliery and society.
In actual process of coal mining, due to the particularity of mining steeply dipping coal seam geological conditions, during large-inclination-angle coal bed mining, in goaf, the spoil of inbreak is due to the effect of deadweight, original place all can not be stayed at majority of case, but the landing downwards immediately along seam inclination direction. Existing high inclination-angle filled wall bodies of gob-side retained entries construction method, simply use grouted anchor bar and carry out slip casting, anti-down I-steel carries out the anti-skid of individual prop, can not well limit the slip of spoil, the guardrail net deformation of resistance cash is serious, and labor intensity is big, it is necessary to substantial amounts of manpower and materials.
Summary of the invention
Technical problem: it is an object of the invention to for problems of the prior art, it is provided that the other cash in a kind of large-inclination-angle coal bed lane simple, that effect is better, safe and reliable is palmed off as and filled out gob-side entry retaining method.
Technical scheme: the other cash in the large-inclination-angle coal bed lane of the present invention is palmed off as and filled out gob-side entry retaining method, specifically comprises the following steps that
A. it is configured to coagulation serosity on ground with foam cement, outstanding solidifying agent, thickening agent, water 3:1:0.7:9 in mass ratio, then coagulation serosity is loaded in filling bag, be transported in stope drift active workings standby;
B. cut deep along with stope hydraulic support often pushes ahead one, at stope rear portion stope drift active workings by goaf side, set up a Ge Liu lane resistance cash support frame, and stay erection I-steel anti-skid outside lane resistance cash support frame to clash post each;
C. by goaf side, laying bar-mat reinforcement along seat earth to roof tunneling boring, and hanging the plasma resistance fiber cloth stoping serosity excessive in the inner side of bar-mat reinforcement, forming guardrail net;
D. along with work surface is constantly pushed ahead, when the top board spoil of erecting dense individual props drops down onto the guardrail web area staying lane resistance cash support frame and bar-mat reinforcement, plasma resistance fiber cloth to construct of setting along seat earth in the downslide that acts on of deadweight, and after piling up the pack wall that formation is stable gradually, by staying lane resistance cash support frame and staying the gap between lane resistance cash support frame that coagulation serosity conveyance conduit is laid on the top of pack wall;
E. carry coagulation serosity from top to bottom by coagulation serosity conveyance conduit, after coagulation serosity is fully contacted with pack wall from top to bottom, stop the conveying of coagulation serosity, extract coagulation serosity conveyance conduit out, namely form the other cash in lane after waiting serosity final set and palm off as and fill out prop;
F. the other cash in lane to be formed is palmed off as and is filled out after prop reaches design strength, and stope is often pushed ahead one and cut deep, stays lane resistance cash support frame to move forward one successively and cuts deep; Obturator owing at this moment being formed at first has reached design strength, it is not necessary to support carries out supporting, thus can by above set up stay lane resistance cash support frame successively with the advance of the face to reach frame, act on the mixed obturator of the cash being newly formed;
G. along with the continuous propelling of work surface, step c, d, e, f are repeated, until full face mining and whole gob side entry retaining have been constructed.
Beneficial effect: the present invention is by roadside packing and a bib cash measure, after achieving mining steeply dipping coal seam, staying along sky of stope drift active workings sets, reduce tunnelling rate, reclaim protection pillar, improve the rate of extraction, stay lane resistance cash support frame supporting effect good, avoid the labout process that erection close standing props is complicated simultaneously. Close on the mixed obturator of the other cash in lane that stope drift active workings side formed can effectively control gob side entry and crush in goaf and the cash effect of lateral gear can be played. When the obturator formed at first reaches design strength, it is not necessary to support carries out supporting, can by above set up stay lane resistance cash support frame successively with the advance of the face to reach frame, act on the mixed obturator of the cash that is newly formed; The method comprehensive method of investment is relatively low, and filler is drawn materials conveniently, stays the roadway maintenance amount of reprocessing set little, and safety is good, and method is simply easily constructed, time saving and energy saving, effective, has wide applicability.
Accompanying drawing explanation
The other cash in lane that Fig. 1 is the present invention palms the top view filling out gob side entry retaining off as;
The other cash in lane that Fig. 2 is the present invention palms the profile filling out gob side entry retaining off as.
In figure: 1-stay lane resistance cash support frame, 2-guardrail net, 3-road-in packing, 4-spoil, 5-working surface hydraulic support, 6-stope drift active workings, 7-rib, 8-roof, 9-seat earth,
Detailed description of the invention
Below in conjunction with accompanying drawing, one embodiment of the present of invention is further described:
The other cash in the large-inclination-angle coal bed lane of the present invention is palmed off as and is filled out gob-side entry retaining method, specifically comprises the following steps that
A. be first configured to coagulation serosity on ground with foam cement, outstanding solidifying agent, thickening agent, water 3:1:0.7:9 in mass ratio, then coagulation serosity is loaded filling bag packaging airtight good after, be transported to down-hole with mine car, until standby in section stope drift active workings 6;
B. during work surface operation, deep 0.8m is cut along with stope hydraulic support 5 often pushes ahead one, at stope rear portion stope drift active workings by goaf side, set up a Ge Liu lane resistance cash support frame 1, centre-to-centre spacing is from for 0.8m, and stays erection I-steel anti-skid outside lane resistance cash support frame to clash post each;
C. by goaf side, laying bar-mat reinforcement along seat earth to roof tunneling boring, and hanging the plasma resistance fiber cloth stoping serosity excessive in the inner side of bar-mat reinforcement, forming guardrail net 2;
D. along with work surface is constantly pushed ahead, when the top board spoil 4 of erecting dense individual props drops down onto guardrail net 2 region staying lane resistance cash support frame 1 and bar-mat reinforcement, plasma resistance fiber cloth to construct of setting along seat earth in the downslide that acts on of deadweight, and after piling up the pack wall that formation is stable gradually, by staying lane resistance cash support frame 1 and staying the gap 0.2m left between lane resistance cash support frame 1 that coagulation serosity conveyance conduit is laid on the top of pack wall;
E. in pipeline, carry coagulation serosity, coagulation serosity is carried from top to bottom by coagulation serosity conveyance conduit, after coagulation serosity is fully contacted with pack wall from top to bottom, stop the conveying of coagulation serosity, extract coagulation serosity conveyance conduit out, namely form the other cash in lane after waiting serosity final set and palm off as and fill out prop 3;
F. palming off as until the other cash in lane of distance work surface 7-8m fills out after prop 3 reaches design strength, and stope is often pushed ahead one and cut deep, stays lane resistance cash support frame 1 to move forward one successively and cuts deep, and support can move frame voluntarily; Obturator owing at this moment being formed at first has reached design strength, it is not necessary to support carries out supporting, thus can by above set up stay lane resistance cash support frame successively with the advance of the face to reach frame, act on the mixed obturator of the cash being newly formed;
G. along with the continuous propelling of work surface, owing to the resistance cash support frame in hereafter step b is to be moved by the support above set up, so rear need to be repeated step c, d, e, f, until full face mining and whole gob side entry retaining have been constructed.
Claims (1)
1. the other cash in large-inclination-angle coal bed lane is palmed off as and is filled out gob-side entry retaining method, it is characterised in that comprise the steps:
A. it is configured to coagulation serosity on ground with foam cement, outstanding solidifying agent, thickening agent, water 3:1:0.7:9 in mass ratio, then coagulation serosity is loaded in filling bag, be transported in stope drift active workings (6) standby;
B. cut deep along with stope hydraulic support (5) often pushes ahead one, at stope rear portion stope drift active workings by goaf side, set up Ge Liu lane resistance cash support frame (1), and stay erection I-steel anti-skid outside lane resistance cash support frame to clash post each;
C. by goaf side, laying bar-mat reinforcement along seat earth to roof tunneling boring, and hanging the plasma resistance fiber cloth stoping serosity excessive in the inner side of bar-mat reinforcement, forming guardrail net (2);
D. along with work surface is constantly pushed ahead, when the top board spoil (4) of erecting dense individual props drops down onto guardrail net (2) region staying lane resistance cash support frame (1) and bar-mat reinforcement, plasma resistance fiber cloth to construct of setting along seat earth in the downslide that acts on of deadweight, and after piling up the pack wall that formation is stable gradually, by staying lane resistance cash support frame (1) and staying the gap between lane resistance cash support frame (1) that coagulation serosity conveyance conduit is laid on the top of pack wall;
E. coagulation serosity is carried from top to bottom by coagulation serosity conveyance conduit, after coagulation serosity is fully contacted with pack wall from top to bottom, stop the conveying of coagulation serosity, extract coagulation serosity conveyance conduit out, namely form the other cash in lane after waiting serosity final set and palm off as and fill out prop (3);
F. the other cash in lane to be formed is palmed off as and is filled out after prop (3) reaches design strength, and stope is often pushed ahead one and cut deep, stays lane resistance cash support frame (1) to move forward one successively and cuts deep; Obturator owing at this moment being formed at first has reached design strength, it is not necessary to support carries out supporting, thus can by above set up stay lane resistance cash support frame successively with the advance of the face to reach frame, act on the mixed obturator of the cash being newly formed;
G. along with the continuous propelling of work surface, step c, d, e, f are repeated, until full face mining and whole gob side entry retaining have been constructed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610005392.XA CN105649673A (en) | 2016-01-04 | 2016-01-04 | Roadside gangue mixture filling and gob-side entry retaining method for large-dip angle coal seams |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610005392.XA CN105649673A (en) | 2016-01-04 | 2016-01-04 | Roadside gangue mixture filling and gob-side entry retaining method for large-dip angle coal seams |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105649673A true CN105649673A (en) | 2016-06-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610005392.XA Pending CN105649673A (en) | 2016-01-04 | 2016-01-04 | Roadside gangue mixture filling and gob-side entry retaining method for large-dip angle coal seams |
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| Country | Link |
|---|---|
| CN (1) | CN105649673A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285692A (en) * | 2016-08-31 | 2017-01-04 | 中国神华能源股份有限公司 | A kind of construction method of gob side entry retaining |
| CN110925017A (en) * | 2019-12-11 | 2020-03-27 | 西安科技大学 | Reserving and supporting method for long-wall mining special-shaped gob-side roadway in large-dip-angle medium-thickness coal seam trend |
| CN113404531A (en) * | 2021-06-18 | 2021-09-17 | 中国矿业大学 | Goaf filling method for reconstructing broken roof structure in coal pillar-free mining |
| CN113803110A (en) * | 2021-10-11 | 2021-12-17 | 山东科技大学 | Roadside filling and supporting method for gob-side entry retaining of large-dip-angle coal seam |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2393355C1 (en) * | 2009-05-18 | 2010-06-27 | Государственное образовательное учреждение высшего профессионального образования Читинский государственный университет (ЧитГУ) | Goaf stowing method |
| CN101864987A (en) * | 2010-06-13 | 2010-10-20 | 中国矿业大学 | Building method of filled wall body for gob-side entry retaining of large-inclination coal seam |
| CN103195426A (en) * | 2013-04-22 | 2013-07-10 | 中国矿业大学(北京) | Steep-coal-seam long wall face non-pillar coal mining method |
| CN204327140U (en) * | 2014-12-12 | 2015-05-13 | 四川省科建煤炭产业技术研究院有限公司 | A kind of gob side entry retaining gear cash device |
| CN204646284U (en) * | 2015-05-20 | 2015-09-16 | 中国矿业大学 | A kind of roadway support equipment of gob side entry retaining |
-
2016
- 2016-01-04 CN CN201610005392.XA patent/CN105649673A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2393355C1 (en) * | 2009-05-18 | 2010-06-27 | Государственное образовательное учреждение высшего профессионального образования Читинский государственный университет (ЧитГУ) | Goaf stowing method |
| CN101864987A (en) * | 2010-06-13 | 2010-10-20 | 中国矿业大学 | Building method of filled wall body for gob-side entry retaining of large-inclination coal seam |
| CN103195426A (en) * | 2013-04-22 | 2013-07-10 | 中国矿业大学(北京) | Steep-coal-seam long wall face non-pillar coal mining method |
| CN204327140U (en) * | 2014-12-12 | 2015-05-13 | 四川省科建煤炭产业技术研究院有限公司 | A kind of gob side entry retaining gear cash device |
| CN204646284U (en) * | 2015-05-20 | 2015-09-16 | 中国矿业大学 | A kind of roadway support equipment of gob side entry retaining |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285692A (en) * | 2016-08-31 | 2017-01-04 | 中国神华能源股份有限公司 | A kind of construction method of gob side entry retaining |
| CN106285692B (en) * | 2016-08-31 | 2019-04-05 | 中国神华能源股份有限公司 | A kind of construction method of gob side entry retaining |
| CN110925017A (en) * | 2019-12-11 | 2020-03-27 | 西安科技大学 | Reserving and supporting method for long-wall mining special-shaped gob-side roadway in large-dip-angle medium-thickness coal seam trend |
| CN110925017B (en) * | 2019-12-11 | 2021-11-09 | 西安科技大学 | Reserving and supporting method for long-wall mining special-shaped gob-side roadway in large-dip-angle medium-thickness coal seam trend |
| CN113404531A (en) * | 2021-06-18 | 2021-09-17 | 中国矿业大学 | Goaf filling method for reconstructing broken roof structure in coal pillar-free mining |
| CN113803110A (en) * | 2021-10-11 | 2021-12-17 | 山东科技大学 | Roadside filling and supporting method for gob-side entry retaining of large-dip-angle coal seam |
| CN113803110B (en) * | 2021-10-11 | 2023-11-03 | 山东科技大学 | Gob-side entry retaining roadside filling support method for large-dip-angle coal seam |
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| C06 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20160608 |