CN106194250A - A kind of gob-side entry retaining concrete filling wall annular air-pocket template - Google Patents

A kind of gob-side entry retaining concrete filling wall annular air-pocket template Download PDF

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Publication number
CN106194250A
CN106194250A CN201610459242.6A CN201610459242A CN106194250A CN 106194250 A CN106194250 A CN 106194250A CN 201610459242 A CN201610459242 A CN 201610459242A CN 106194250 A CN106194250 A CN 106194250A
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Prior art keywords
annular air
filling
pocket
gob
pressure bag
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CN201610459242.6A
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CN106194250B (en
Inventor
李昂
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Xian University of Science and Technology
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Xian University of Science and Technology
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Priority to CN201610459242.6A priority Critical patent/CN106194250B/en
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    • 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 kind of gob-side entry retaining concrete filling wall annular air-pocket template, use the mode of annular air-pocket pressure bag, by resist displacement anchor and horizontal lateral spacing bracing means, annular air-pocket pressure bag is fixed;Resist displacement anchor is combined into entirety annular air-pocket template and roof and floor;Horizontal lateral spacing bracing means can effectively limit the transversely deforming of filled wall, it is ensured that gob side entry retaining successfully stays and sets, it is possible to resists repeatedly roof weighting, improves concrete wall stability in the large;Annular air-pocket pressure bag structure, inflation is being needed before the internal concrete perfusion of filling chamber, undertake hard and soft falsework to use, after annular air-pocket pressure bag is exitted, to filling concrete in it, both construct gob side entry retaining roadside packing body of wall jointly, whole flow process eliminates frame steel form and tears the link of steel form open, middle slip casting flow process without waiting for, reduce labor strength, achieve serialization Fast Filling operation, face propulsion speed can be closelyed follow.

Description

A kind of gob-side entry retaining concrete filling wall annular air-pocket template
Technical field
The present invention relates to a kind of air bag form, specifically a kind of gob-side entry retaining concrete filling wall annular air-pocket template.
Background technology
Gob side entry retaining uses without coal pillar mining mode, the most only one tunnel of digging as upper one adopt the stope drift active workings in face with under One gob side entry retaining adopting face uses, and drastically increases coal recovery rate, has saved the coal resources of preciousness, alleviates excavation replacement Nervous situation, is a great technological revolution of stope of coal mines in the last few years and tunnel reasonable Arrangement.But along with China is shallow Portion's coal resources are petered out, and gradually proceed to deep fractures exploitation, the most adjoint strata behaviors is obvious, ground pressure increases, Roadway deformation is serious, well lane engineering is difficult in maintenance, repair rate is high, reprocess the series of problems such as cost increase, the oldest top board Fracture causes gob side entry retaining road-in packing top discontinuity, brings obturator to bias stress, and the lighter causes the big change of obturator Shape or sliding, serious its overall collapse that makes destroy, and bring the potential safety hazards such as roof collapse, Gas Outburst, goaf gushing water.
Existing roadside packing technology is also faced with problems with: along with the raising of mining mechanization level, adopts face " three machines " real Executing exploitation continuously, conventional roadside packing technique and construction method are discontinuity operating type, are difficult to get caught up in coal mining speed, sternly Ghost image rings back production efficiency;Conventional rigid template exist roadside packing connect top weak effect, easy running pulp, cannot realize full connect top and Concrete quick pressure-bearing effect;When using filling bag as template, there is filling bag and easily extrude tenesmus and crumple, the concrete just poured into a mould In filling bag, easy pressurized flow deforms to such an extent as to affects concrete final set strength, is likely to result in gob side entry retaining failure or reprocesses cost Increase;Conventional gob side entry retaining roadside packing construction technology is loaded down with trivial details, and labor strength is big, generally requires erection template and dismounting The techniques such as template, not only cause temporal waste, it is also difficult to achieve filling and its support reinforcement body of wall quick and continuous operation.
Summary of the invention
The problem existed for above-mentioned prior art, the present invention provides a kind of gob-side entry retaining concrete filling wall annular air-pocket Template, its simple in construction, easy to use, it is not necessary to form removal, there is Tight filling effective, when perfusion, coagulation will not occur Soil running pulp phenomenon, can make the concrete coagulation after perfusion, it is ensured that the intensity of its final filled wall well.
To achieve these goals, the technical solution used in the present invention is: this kind of gob-side entry retaining concrete filling wall annular Air bag form, including annular air-pocket pressure bag and unidirectional concrete pouring valve, described annular air-pocket pressure bag is all round closure structure Surround a filling chamber;Described unidirectional concrete pouring valve is through with filling chamber through the side of annular air-pocket pressure bag to be connected, annular Gasbag pressure bag is provided with check valve air-filled pore, steam vent I and steam vent II, and annular air-pocket pressure bag is provided with horizontal lateral spacing anchor Bar pre-manufactured hole, the top of filling chamber is provided with top longitudinal direction reinforced bands and top transversal reinforcement band, and the bottom of filling chamber is provided with bottom Transversal reinforcement band and bottom longitudinal direction reinforced bands.
Further, anti-running pulp edge of a wing band it is respectively equipped with at the top of filling chamber and bottom;No matter increase anti-running pulp edge of a wing band Being that roof and floor rock integrity is good or belong to broken roof and floor, concrete grouting serosity all can rely on self gravitation effect to anti-running pulp Edge of a wing band compacting, compression, prevent annular air-pocket pressure bag from connecing the edge generation running pulp at the end, top and slurry phenomenon of overflowing, and can ensure that Concrete grouting serous fluid is directly fully contacted with roof and floor country rock, is greatly improved concrete and is engaged with cohesive force and the sawtooth of roof and floor country rock Power, it is sufficient filling with roof and floor wall-rock crack and bad contact surface.
Further, described horizontal lateral spacing anchor pole pre-manufactured hole is fluffy tubular structure;Use fluffy tubular structure not Inflating tight closure after pressure, fully wrapped around horizontal lateral spacing anchor pole in only ensureing annular air-pocket pressure bag body, effectively prevention running pulp is existing As;And horizontal lateral spacing anchor pole can be made directly to contact with concrete perfusion, cohesive force is higher.
Further, the material of described annular air-pocket pressure bag is essential safe type rubber or PVC material or high strength plastics.
Compared with prior art, the present invention uses the mode of annular air-pocket pressure bag, by resist displacement anchor and water Annular air-pocket pressure bag is fixed by flat lateral spacing bracing means;Resist displacement anchor is combined into annular air-pocket template and roof and floor Entirety, enhance concrete filling body of wall longitudinal shear resistance cut, resistant slide, resistance to deformation effect, effectively prevent filled wall bias Unstable failure;Horizontal lateral spacing bracing means can effectively limit the transversely deforming of filled wall, it is ensured that gob side entry retaining successfully stays and sets, after Phase deflection is little, it is possible to resist repeatedly roof weighting, improves concrete wall stability in the large;Annular air-pocket pressure bag structure, to Need inflation before the internal concrete perfusion of filling chamber, undertake hard and soft falsework and use, after annular air-pocket pressure bag is exitted, right Filling concrete in it, both construct gob side entry retaining roadside packing body of wall jointly, and whole flow process eliminates frame steel form and tears steel open The link of template, middle slip casting flow process without waiting for, reduce labor strength, save the procedure connection time, it is achieved that continuously Change Fast Filling operation, face propulsion speed can be closelyed follow.
Accompanying drawing explanation
Fig. 1 is the front view of annular air bag form in the present invention;
Fig. 2 is A-A profile in Fig. 1;
Fig. 3 is the front view of annular air bag form inflation in the present invention;
Fig. 4 is A-A profile in Fig. 3;
Fig. 5 is the front view of annular air bag form entoplasm liquid grout in the present invention;
Fig. 6 is A-A profile in Fig. 5;
Fig. 7 is the front view of annular air bag form air pressure aerofluxus in the present invention;
Fig. 8 is A-A profile in Fig. 7;
Fig. 9 is the front view of annular air bag form serosity slip casting in the present invention;
Figure 10 is A-A profile in Fig. 9;
Figure 11 is the perspective view of the present invention;
Figure 12 is the saturating schematic diagram of the stereochemical structure of resist displacement anchor in the present invention;
Figure 13 is resist displacement anchor and the perspective view of horizontal lateral spacing bracing means in the present invention;
Figure 14 is the construction embodiment floor map of the present invention.
In figure: 1, resistant slide anchor pole, 2, filled wall top board anchor cable, 3, resistant slide crab-bolt, 4, hang mould iron wire, 5, horizontal side Limit anchor pole pre-manufactured hole, 6, horizontal lateral spacing anchor pole, 7, unidirectional concrete filling valve, 8, steam vent I, 9, one-way cock air-filled pore, 10, adopt Dead zone, 11, filling chamber, 12, gob side entry retaining, 13, top longitudinal direction reinforced bands, 14, top transversal reinforcement band, 15, bottom laterally adds Rib tape, 16, bottom longitudinal direction reinforced bands, 17, coal-face, 18, hydraulic support, 19, the filled wall built by laying bricks or stones, 20, aerofluxus Hole II, 21, filled wall roofbolt, 22, annular air-pocket pressure bag, 23, anti-running pulp edge of a wing band.
Detailed description of the invention
The invention will be further described below.
As shown in Fig. 1 to Figure 14, the present invention includes annular air-pocket pressure bag 22 and unidirectional concrete pouring valve 7, described annular Gasbag pressure bag 22 surrounds a filling chamber 11 for all round closure structure;Described unidirectional concrete pouring valve 7 is through annular air-pocket pressure The side of bag 22 is through with filling chamber 11 to be connected, and annular air-pocket pressure bag 22 is provided with check valve air-filled pore 9, steam vent I 8 and row Pore II 20, annular air-pocket pressure bag 22 is provided with horizontal lateral spacing anchor pole pre-manufactured hole 5, and the top of filling chamber 11 is provided with top longitudinally Reinforced bands 13 and top transversal reinforcement band 14, the bottom of filling chamber 11 is provided with bottom laterally reinforced bands 15 and bottom longitudinal direction reinforced bands 16。
Further, anti-running pulp edge of a wing band 23 it is respectively equipped with at the top of filling chamber 11 and bottom;Increase anti-running pulp edge of a wing band 23, either roof and floor rock integrity the most still belongs to broken roof and floor, and concrete grouting serosity all can rely on self gravitation effect Anti-running pulp edge of a wing band 23 is compacted, compresses, prevents annular air-pocket pressure bag 22 from connecing the edge generation running pulp at the end, top and slurry phenomenon of overflowing, And can ensure that concrete grouting serous fluid is directly fully contacted with roof and floor country rock, it is greatly improved the cohesive force of concrete and roof and floor country rock With sawtooth gmatjpdumamics, be sufficient filling with roof and floor wall-rock crack and bad contact surface.
Further, described horizontal lateral spacing anchor pole pre-manufactured hole 5 is fluffy tubular structure;Use fluffy tubular structure not Inflate tight closure after pressure, fully wrapped around horizontal lateral spacing anchor pole 6 in only ensureing annular air-pocket pressure bag 22 body, effectively prevent running pulp Phenomenon;And horizontal lateral spacing anchor pole 6 can be made directly to contact with concrete perfusion, cohesive force is higher.
Further, the material of described annular air-pocket pressure bag 22 is essential safe type rubber or PVC material or high strength plastics.
Work process is:
In concrete wall front, side, lane, apply filling along gob side entry retaining direction correspondence position according to conventional construction method Body of wall roofbolt 21, roofbolt pallet, filled wall top board anchor cable, crab-bolt pallet, anchorage and bar-mat reinforcement carry out supporting, Construct in the lump top, the crab-bolt boring of base plate and crab-bolt reaming simultaneously, anchoring resistant slide crab-bolt 3 in top, the boring of base plate correspondence, connect And put N-shaped pallet, upper jack panel in it;Reserve the bulk of the other body of wall to be filled in gob side entry retaining lane, if near goaf When 10 side spoil inbreaks are serious or roof stability is poor, applying wooden prop or the support of backboard cutaneous branch near side, goaf 10 Top board, it is ensured that body of wall stability of cavern roof to be filled;In locus to be filled, place gob-side entry retaining concrete filling wall annular gas Capsule template, paves bottom laterally reinforced bands 15 and bottom longitudinal direction reinforced bands 16;In annular air-pocket pressure bag 22, resistant slide is installed Anchor pole 1 so that it is female thread is tightened on resistant slide crab-bolt 3 external screw thread;Horizontal lateral spacing anchor in annular air-pocket pressure bag 22 both sides Bar pre-manufactured hole 5, to wearing horizontal lateral spacing anchor pole 6, installs horizontal lateral spacing anchor rod at horizontal lateral spacing anchor pole 6 two ends;Use and hang mould ferrum Silk 4 is by annular air-pocket pressure bag 22 Suspending fixation to roofbolt or bar-mat reinforcement position, and extension mould iron wire 4 both can direct colligation top Plate is prone to hitch point, it is possible to use hook form directly to hang;After model sheetinstallat completes, first close steam vent I 8 and steam vent II 20, then use inflator or pressure ventilation pipe docking one-way cock air-filled pore, inflate in annular air-pocket pressure bag 22 body, it is ensured that gas Capsule pressure bag 22 completely attaches to roof and floor in case running pulp, and keeps stable gas pressure;After completing inflation, close one-way cock inflation Hole 9, connects concrete pumping equipment by unidirectional concrete pouring valve 7, by unidirectional concrete pouring valve 7 to the internal perfusion of filling chamber 11 Concrete slurry, now the anti-running pulp edge of a wing band 23 of roof and floor relies on grouting serous fluid self gravitation effect compacting, compresses, and treats serosity Irrigate full after, close in time unidirectional concrete pouring valve 7, extract filling concrete pipeline, stand and condense a period of time, treat coagulation Soil reaches preset strength;Complete installation and its internal filling chamber 11 of multiple gob-side entry retaining concrete filling wall annular air-pocket template Filling concrete, when in filling chamber 11 perfusion concrete reach preset strength after, open steam vent I 8 and steam vent II 20, Filling concrete pipeline is connected one of them steam vent, concrete perfusion in annular air-pocket pressure bag 22, simultaneously its another The outside aerofluxus of individual steam vent, stops perfusion after serosity is full in annular air-pocket pressure bag 22, and standing condensation a period of time treats it After intensity reaches, the concrete in annular air-pocket pressure bag 22 and the concrete in filling chamber is made jointly to construct the other body of wall in lane.

Claims (4)

1. a gob-side entry retaining concrete filling wall annular air-pocket template, it is characterised in that include annular air-pocket pressure bag (22) With unidirectional concrete pouring valve (7), described annular air-pocket pressure bag (22) is that all round closure structure surrounds a filling chamber (11);Described Unidirectional concrete pouring valve (7) is through with filling chamber (11) through the side of annular air-pocket pressure bag (22) to be connected, annular air-pocket pressure Power bag (22) is provided with check valve air-filled pore (9), steam vent I (8) and steam vent II (20), and annular air-pocket pressure bag sets on (22) Having horizontal lateral spacing anchor pole pre-manufactured hole (5), the top of filling chamber (11) is provided with top longitudinal direction reinforced bands (13) and top transversal reinforcement Band (14), the bottom of filling chamber (11) is provided with bottom laterally reinforced bands (15) and bottom longitudinal direction reinforced bands (16).
A kind of gob-side entry retaining concrete filling wall annular air-pocket template the most according to claim 1, it is characterised in that filling Top and the bottom of filling out chamber (11) are respectively equipped with anti-running pulp edge of a wing band (23).
A kind of gob-side entry retaining concrete filling wall annular air-pocket template the most according to claim 1 and 2, it is characterised in that Described horizontal lateral spacing anchor pole pre-manufactured hole (5) is fluffy tubular structure.
A kind of gob-side entry retaining concrete filling wall annular air-pocket template the most according to claim 1 and 2, it is characterised in that The material of described annular air-pocket pressure bag (22) is essential safe type rubber or PVC material or high strength plastics.
CN201610459242.6A 2016-06-22 2016-06-22 A kind of gob-side entry retaining concrete filling wall annular air-pocket template Active CN106194250B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106968698A (en) * 2017-04-13 2017-07-21 中煤能源研究院有限责任公司 Gob side entry retaining pours the template hydraulic support and its application method of pier stud by lane
CN110219685A (en) * 2019-07-08 2019-09-10 哈密豫新能源产业研究院有限责任公司 A kind of roof reinforcement grouting equipment and grouting method
CN112176810A (en) * 2020-09-08 2021-01-05 杨恩德 Combined pneumatic precast concrete pavement laying method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201090245Y (en) * 2007-09-19 2008-07-23 中国矿业大学 Flexible filling bag with vessel
CN201835869U (en) * 2010-09-09 2011-05-18 中国矿业大学 Gob-side retained entry reinforcing fill structure
CN203756230U (en) * 2014-02-13 2014-08-06 山西晋煤集团技术研究院有限责任公司 Mold bag type sealed retaining wall capable of being quickly formed
CN103603688B (en) * 2013-09-25 2015-07-15 安徽理工大学 Gob-side entry three-dimensional reinforcement filled wall structure and filling method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201090245Y (en) * 2007-09-19 2008-07-23 中国矿业大学 Flexible filling bag with vessel
CN201835869U (en) * 2010-09-09 2011-05-18 中国矿业大学 Gob-side retained entry reinforcing fill structure
CN103603688B (en) * 2013-09-25 2015-07-15 安徽理工大学 Gob-side entry three-dimensional reinforcement filled wall structure and filling method thereof
CN203756230U (en) * 2014-02-13 2014-08-06 山西晋煤集团技术研究院有限责任公司 Mold bag type sealed retaining wall capable of being quickly formed

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106968698A (en) * 2017-04-13 2017-07-21 中煤能源研究院有限责任公司 Gob side entry retaining pours the template hydraulic support and its application method of pier stud by lane
CN106968698B (en) * 2017-04-13 2019-07-30 中煤能源研究院有限责任公司 Gob side entry retaining pours the template hydraulic support and its application method of pier stud by lane
CN110219685A (en) * 2019-07-08 2019-09-10 哈密豫新能源产业研究院有限责任公司 A kind of roof reinforcement grouting equipment and grouting method
CN112176810A (en) * 2020-09-08 2021-01-05 杨恩德 Combined pneumatic precast concrete pavement laying method

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