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 PDF

Info

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
Authority
CN
China
Prior art keywords
cash
coagulation
serosity
lane
gob
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610005392.XA
Other languages
Chinese (zh)
Inventor
徐剑坤
李赞
周蕊
徐信增
习丹阳
庞云成
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China University of Mining and Technology CUMT
Original Assignee
China University of Mining and Technology CUMT
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China University of Mining and Technology CUMT filed Critical China University of Mining and Technology CUMT
Priority to CN201610005392.XA priority Critical patent/CN105649673A/en
Publication of CN105649673A publication Critical patent/CN105649673A/en
Pending legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F15/00Methods or devices for placing filling-up materials in underground workings
    • E21F15/005Methods or devices for placing filling-up materials in underground workings characterised by the kind or composition of the backfilling material
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F15/00Methods or devices for placing filling-up materials in underground workings
    • E21F15/02Supporting means, e.g. shuttering, for filling-up materials
    • E21F15/04Stowing mats; Goaf wire netting; Partition walls

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

The other cash in a kind of large-inclination-angle coal bed lane is palmed off as and is filled out gob-side entry retaining method
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.
CN201610005392.XA 2016-01-04 2016-01-04 Roadside gangue mixture filling and gob-side entry retaining method for large-dip angle coal seams Pending CN105649673A (en)

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

ID=56490552

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

Country Status (1)

Country Link
CN (1) CN105649673A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
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

Citations (5)

* Cited by examiner, † Cited by third party
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
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 (5)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
CN103410515B (en) It is a kind of that three-soft seam is reciprocating combines mining method without coal column
CN106930763B (en) A method of the filling residual mining area roadway support coal column of second mining super high seam
CN103161480B (en) Initiatively support the method for roadside packing gob side entry retaining
CN104632220B (en) Mining method with adjustable and controllable structure size of gentle dip medium-thickness ore body strip column reconstructed stope
CN103742148B (en) The soft coal-mining method covering the descending waste filling of supporting of a kind of half-edge coal seam
CN102996131A (en) Solid-filling coal mining method with two pre-excavating tunnels for advancing
CN104832178A (en) A layering and partially filling coal mining method of thick seams
CN105317459A (en) Subarea filling method used for controlling large-area falling disaster of hard roof
CN107725052B (en) One kind, which is adopted, stays integration exploitation gob side entry top plate constant-resistance anchor body beam method for protecting support
CN104481540A (en) Method for controlling multiple coal mining hazards by high level borehole grouting
CN105804748B (en) A kind of method of block mining Wall ore under open air transport system
CN101749020A (en) Forward coal mining by filling method
CN102635392A (en) Co-extraction method for pillar-less coal and gas of advanced entry-retaining construction extraction engineering
CN107091091A (en) A kind of steeply-inclined seam mining gob-side entry retaining method of prefabricated arc support
CN103953345B (en) A kind of small section entry retaining along gob side exploitation method
CN104500070B (en) Continuous coal mining machine paste filling mining method
CN108979638B (en) Composite gob-side entry retaining method for wedge-shaped regenerated wall and single-leg shed beam of coal mining roadway
WO2016074456A1 (en) Coal mining method with digging, mining and filling parallel operations under control of cover rock cracks and surface subsidence
CN105715297A (en) Method for treating heavy inclined seam gob-side entry retaining gangue
CN105649673A (en) Roadside gangue mixture filling and gob-side entry retaining method for large-dip angle coal seams
CN108952725B (en) Low dilution mining method suitable for gentle dip thin ore body
CN103161498B (en) Half-edge coal seam section coal pillar roadside packing method
CN110259449B (en) Strip filling mining method for extra-thick coal seam by means of steel mould trolley
CN109899070B (en) Slow-inclination medium-thickness ore body solid-waste-free filling mining method based on ellipsoid ore drawing structure
CN104295315A (en) Low coal seam gob-side entry retaining method

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20160608

RJ01 Rejection of invention patent application after publication