CN102606171A - Gob-side entry retaining method for pouring spacing concrete walls in tunnel of advanced highwall - Google Patents
Gob-side entry retaining method for pouring spacing concrete walls in tunnel of advanced highwall Download PDFInfo
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- CN102606171A CN102606171A CN2012100880483A CN201210088048A CN102606171A CN 102606171 A CN102606171 A CN 102606171A CN 2012100880483 A CN2012100880483 A CN 2012100880483A CN 201210088048 A CN201210088048 A CN 201210088048A CN 102606171 A CN102606171 A CN 102606171A
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- concrete
- side entry
- entry retaining
- flexible formwork
- gob
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Abstract
The invention discloses a gob-side entry retaining method for pouring spacing concrete walls in a tunnel of an advanced highwall. A plurality of flexible formworks which are arranged at intervals are hung in a return air laneway of the advanced highwall by single bodies or anchor rods, concrete is poured into the flexible formworks via a concrete pump, a spacing concrete wall is formed and clings to a roof, then the flexible formworks are hung in space intervals of the spacing concrete wall by a lagging work surface, the concrete is pumped into the flexible formworks, so that a closed concrete continuous wall is formed, and finally a gob-side entry is formed. The spacing concrete wall is poured in the advanced highwall to realize gob-side entry retaining, requirements of ventilation, recovery and construction are met, supporting is safe and reliable, and recovery is not affected. The method is suitable for crushing the roof to realize gob-side entry retaining during recovery, and is widely used for industries of coal mines, metallurgical mines and the like.
Description
Technical field
The present invention relates to does not have coal pillar mining, is specifically related to build in the leading face lane method of compartment concrete wall gob side entry retaining.
Background technology
Traditional gob side entry retaining mode all is in goaf, coal-face rear, to adopt forms such as spoil bag, wood point post, grillage, concrete wall, high-water material wall or building block to carry out roadside support; The method of this construction at the coal-face rear needs in goaf, hydraulic support rear, to set monomer or wood point post carries out temporary lining; Roof cracking when this method can not adapt to back production, the back top board of trying to stop people from fighting each other collapse immediately and fall or situation that the amount of crushing is big, and reason is that the goaf operational security is poor or the low amount of crushing of temporary lining intensity is big, stay that the lane height is too little can not to satisfy instructions for use and the big drawing speed that influences of hydraulic support rear primary concreting concrete continuous wall workload.And for the mine of the complicated high gas of some roof wall rock conditions; In order to solve gas exceeding limit, keeping tensions down relation, to reclaim coal column; Carry out gob side entry retaining and be only basic way, but there are many difficult problems in construction roadside support body in goaf, work plane rear.
Summary of the invention
The purpose of this invention is to provide a kind ofly can take into account face advance support, immediate support goaf, reduce gob side entry retaining in coal-face rear area work amount, improve the method for the gob side entry retaining of safety.
In order to overcome the deficiency of prior art, build the method for compartment concrete wall gob side entry retaining in the leading face lane and undertaken by following step:
A, leading face are hung a plurality of spaced apart Flexible formwork assemblies through individual prop or anchor pole in air return way;
B, in a plurality of Flexible formwork assemblies, fill with concrete successively through elephant trunk;
Remove the individual prop that is used to hang Flexible formwork assembly after c, the hardening of concrete, in the air return way of first advance, form the discontinuous body of wall of concrete of one compartment;
D, face advance;
E, hysteresis face are keeping in the tunnel along empty, in the clearance space of compartment concrete wall, hang a plurality of Flexible formwork assemblies with individual prop and anchor pole or the wooden post of putting;
F, fill with concrete in a plurality of Flexible formwork assemblies in clearance space successively through elephant trunk;
Remove the individual prop that is used to hang Flexible formwork assembly after g, the hardening of concrete, form one closed concrete diaphragm wall in the tunnel in keeping of hysteresis work plane along sky.
H, repetition a, b, c, d, e, f, g go round and begin again, and finish until whole coal-face back production, accomplish the gob side entry retaining of whole piece air return way.
The invention has the beneficial effects as follows: coal-face advance support intensity height, immediate support goaf, reduced the workload of gob side entry retaining at the coal-face rear; Satisfy ventilation, back production and construction requirement; Supporting is safe and reliable, does not influence back production, is fit to the breaking roof gob side entry retaining; Be widely used in the colliery, industries such as metallurgical mine.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is the sketch map of building compartment concrete wall gob side entry retaining in the leading face of the present invention lane;
Fig. 2 is the sectional drawing of the I-I of Fig. 1;
Fig. 3 is the sectional drawing of the II-II of Fig. 1;
Among the figure: 1-individual prop, 2-Flexible formwork assembly, 3-compartment body of wall, 4-clearance space, 5-hydraulic support, 6-elephant trunk, 7-anchor pole.
The specific embodiment
Below in conjunction with accompanying drawing summary of the invention is further specified:
With reference to Fig. 1-shown in Figure 3:
A, leading coal-face are in air return way; Hang three to six spaced apart Flexible formwork assemblies 2 through individual prop 1, Flexible formwork assembly 2 length b are 1～3m, and width c is 0.2～2m; Height is identical with head-room, and the spacing distance a of Flexible formwork assembly 2 is 1～6m.
B, in three to six Flexible formwork assemblies 2, fill with concrete successively through elephant trunk 6;
Remove the individual prop 1 that is used to hang Flexible formwork assembly 2 after c, the hardening of concrete, in the air return way of first advance, form the discontinuous body of wall 3 of concrete of one compartment;
D, coal-face advance;
E, hysteresis coal-face are keeping in the tunnel along empty, in the clearance space 4 of compartment concrete wall, hang one to six Flexible formwork assembly 2 with individual prop 1 and anchor pole 7 or wood point post;
F, fill with concrete in one to six Flexible formwork assembly 2 in clearance space successively through elephant trunk 6;
Remove the individual prop 1 that is used to hang Flexible formwork assembly 2 after g, the hardening of concrete, form one closed concrete diaphragm wall in the tunnel in keeping of hysteresis work plane along sky.
H, repetition a, b, c, d, e, f, g go round and begin again, and finish until whole coal-face back production, accomplish the gob side entry retaining of whole piece air return way.
Above-mentioned Flexible formwork assembly 2 is made by high strength fibre cloth and is formed, and has from moulding and permeable characteristics of not passing through slurry.
Claims (2)
1. build the method for compartment concrete wall gob side entry retaining in the leading face lane, it is characterized in that:
A, leading face are hung a plurality of spaced apart Flexible formwork assemblies (2) through individual prop (1) or anchor pole (7) in air return way;
B, in a plurality of Flexible formwork assemblies (2), fill with concrete successively through elephant trunk (6);
Remove after c, the hardening of concrete and be used to hang the individual prop (1) of Flexible formwork assembly (2), the discontinuous body of wall of concrete (3) of one compartment of formation in the air return way of first advance;
D, face advance;
E, hysteresis face are keeping in the tunnel along empty, the clearance space (4) of compartment concrete wall in, hang a plurality of Flexible formwork assemblies (2) with individual prop (1) and anchor pole (7) or the wooden post of putting;
F, in a plurality of Flexible formwork assemblies (2) of clearance space (4) lining, fill with concrete successively through elephant trunk (6);
Remove after g, the hardening of concrete and be used to hang the individual prop (1) of Flexible formwork assembly (2), one closed concrete diaphragm wall of formation in empty reservation tunnel, the edge of hysteresis work plane.
H, repetition a, b, c, d, e, f, g go round and begin again, and finish until whole face back production, accomplish the gob side entry retaining of whole piece air return way.
2. according to the method for building compartment concrete wall gob side entry retaining in the said leading face of claim 1 lane, it is characterized in that Flexible formwork assembly is made by cloth to form, be shaped as cuboid or cube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100880483A CN102606171A (en) | 2012-03-29 | 2012-03-29 | Gob-side entry retaining method for pouring spacing concrete walls in tunnel of advanced highwall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100880483A CN102606171A (en) | 2012-03-29 | 2012-03-29 | Gob-side entry retaining method for pouring spacing concrete walls in tunnel of advanced highwall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102606171A true CN102606171A (en) | 2012-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100880483A Pending CN102606171A (en) | 2012-03-29 | 2012-03-29 | Gob-side entry retaining method for pouring spacing concrete walls in tunnel of advanced highwall |
Country Status (1)
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| CN (1) | CN102606171A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110905507A (en) * | 2019-12-06 | 2020-03-24 | 河南力行科创矿山技术开发有限公司 | Advanced roof cutting pressure relief gob-side entry retaining process for high-gas large-mining-height high-efficiency mining working face |
| CN113550782A (en) * | 2021-08-20 | 2021-10-26 | 太原理工大学 | Gob-side entry retaining working face goaf gas and natural ignition composite disaster treatment method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3798414B2 (en) * | 2004-11-22 | 2006-07-19 | 新日本製鐵株式会社 | Continuous fiber reinforced member for concrete wall to be cut and construction method of concrete wall to be cut using the same |
| CN101413393A (en) * | 2008-11-28 | 2009-04-22 | 兖州煤业股份有限公司 | Gob-side entry retaining side support method of coal bed fully mechanized caving face |
| CN101649744A (en) * | 2009-08-27 | 2010-02-17 | 王晓利 | Device and method for casting concrete continuous walls along gob-side entry retaining by mining working face |
| CN102337906A (en) * | 2011-09-09 | 2012-02-01 | 陕西开拓建筑科技有限公司 | Construction method for pouring airtight partition wall between recovered roadway and reserved roadway |
| JP2012046986A (en) * | 2010-08-27 | 2012-03-08 | Fukuda Corp | Curing device |
| CN102392642A (en) * | 2011-11-02 | 2012-03-28 | 王晓利 | Method for arranging roadways on coal-pillar-free stope |
-
2012
- 2012-03-29 CN CN2012100880483A patent/CN102606171A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3798414B2 (en) * | 2004-11-22 | 2006-07-19 | 新日本製鐵株式会社 | Continuous fiber reinforced member for concrete wall to be cut and construction method of concrete wall to be cut using the same |
| CN101413393A (en) * | 2008-11-28 | 2009-04-22 | 兖州煤业股份有限公司 | Gob-side entry retaining side support method of coal bed fully mechanized caving face |
| CN101649744A (en) * | 2009-08-27 | 2010-02-17 | 王晓利 | Device and method for casting concrete continuous walls along gob-side entry retaining by mining working face |
| JP2012046986A (en) * | 2010-08-27 | 2012-03-08 | Fukuda Corp | Curing device |
| CN102337906A (en) * | 2011-09-09 | 2012-02-01 | 陕西开拓建筑科技有限公司 | Construction method for pouring airtight partition wall between recovered roadway and reserved roadway |
| CN102392642A (en) * | 2011-11-02 | 2012-03-28 | 王晓利 | Method for arranging roadways on coal-pillar-free stope |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110905507A (en) * | 2019-12-06 | 2020-03-24 | 河南力行科创矿山技术开发有限公司 | Advanced roof cutting pressure relief gob-side entry retaining process for high-gas large-mining-height high-efficiency mining working face |
| CN113550782A (en) * | 2021-08-20 | 2021-10-26 | 太原理工大学 | Gob-side entry retaining working face goaf gas and natural ignition composite disaster treatment method |
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Application publication date: 20120725 |