CN106194250B - 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 PDFInfo
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- CN106194250B CN106194250B CN201610459242.6A CN201610459242A CN106194250B CN 106194250 B CN106194250 B CN 106194250B CN 201610459242 A CN201610459242 A CN 201610459242A CN 106194250 B CN106194250 B CN 106194250B
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- Prior art keywords
- annular air
- pressure bag
- gob
- side entry
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
Abstract
The invention discloses a kind of gob-side entry retaining concrete filling wall annular air-pocket templates to be fixed to annular air-pocket pressure bag by resist displacement anchor and horizontal lateral spacing bracing means by the way of annular air-pocket pressure bag；Resist displacement anchor combines annular air-pocket template and roof and floor integral；Horizontal lateral spacing bracing means can effectively limit the transversely deforming of filled wall, ensure that gob side entry retaining successfully stays and set, can resist multiple roof weighting, improve concrete wall overall stability；Annular air-pocket pressure bag structure, it needs to inflate before the concrete perfusion to the inside of filling chamber, the use of hard and soft falsework is undertaken, after the deflation of annular air-pocket pressure bag, to filling concrete in it, the two constructs gob side entry retaining roadside packing wall jointly, whole flow process eliminates frame steel form and tears the link of steel form open, and intermediate slip casting flow without waiting, reduces labor intensity, serialization Fast Filling operation is realized, face propulsion speed can be closely followed.
Description
Technical field
The present invention relates to a kind of air bag form, specifically a kind of gob-side entry retaining concrete fills wall annular air-pocket template.
Background technology
Gob side entry retaining is only dug a tunnel and is adopted the stope drift active workings in face under as upper one using no coal pillar mining mode
One gob side entry retaining for adopting face uses, and greatly improves coal recovery rate, has saved valuable coal resources, alleviates excavation replacement
Nervous situation is a great technological revolution of stope of coal mines and tunnel reasonable Arrangement in recent years.But as China is shallow
Portion's coal resources are petered out, and deep fractures exploitation is gradually transferred to, while adjoint strata behaviors are apparent, ground pressure increases,
Roadway deformation is serious, well lane engineering is difficult in maintenance, repair rate is high, reprocesses a series of problems, such as cost increase, especially old top plate
Fracture causes discontinuity at the top of gob side entry retaining road-in packing, and filling body-bias stress, less serious case is brought to cause the big change of obturation
Shape or sliding, it is serious so that its overall collapse is destroyed, bring the security risks such as roof collapse, Gas Outburst, goaf gushing water.
Existing roadside packing technology is also faced with problems with：With the raising of mining mechanization level, it is real to adopt face " three machines "
Continuous exploitation is applied, common roadside packing technique and construction method are discontinuity operating type, it is difficult to get caught up in coal mining speed, sternly
Ghost image rings back production efficiency；Common rigid template there are roadside packing connect poor top effect, easy running pulp, cannot achieve it is full connect push up and
The quick pressure-bearing effect of concrete；When using filling bag as template, exists to fill bag and easily squeeze to drop and crumple, just poured the concrete being poured in
Easily pressurized flow deformation is so that influencing concrete final set strength, being likely to result in gob side entry retaining failure or reprocessing cost in filling bag
Increase；Common gob side entry retaining roadside packing construction technology is cumbersome, and labor intensity is big, generally requires to set up template and dismounting
The techniques such as template not only cause temporal waste, it is also difficult to achieve filling and support reinforcement wall quick and continuous operation.
Invention content
In view of the above existing problems in the prior art, the present invention provides a kind of gob-side entry retaining concretes to fill wall annular air-pocket
Template, it is simple in structure, it is easy to use, it is not necessarily to form removal, has Tight filling effect good, coagulation will not occur in perfusion
Native running pulp phenomenon can make the concrete coagulation after perfusion, ensure the intensity of its final filled wall well.
To achieve the goals above, the technical solution adopted by 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, the annular air-pocket pressure bag are all round closure structure
Surround a filling chamber；The unidirectional concrete pouring valve passes through the side of annular air-pocket pressure bag to be connected with filling chamber perforation, annular
Gasbag pressure bag is equipped with check valve air-filled pore, gas vent I and gas vent II, and annular air-pocket pressure bag is equipped with horizontal lateral spacing anchor
The top of bar pre-manufactured hole, filling chamber is equipped with top longitudinal direction reinforced bands and top transversal reinforcement band, and the bottom of filling chamber is equipped with bottom
Transversal reinforcement band and bottom longitudinal direction reinforced bands.
Further, it is respectively equipped with anti-running pulp edge of a wing band at the top of filling chamber and bottom；No matter increase anti-running pulp edge of a wing band
It is that roof and floor rock integrity is good or belong to broken roof and floor, the concrete slurries that are in the milk can rely on self gravitation effect to anti-running pulp
Edge of a wing band compacting compresses, and prevents the edge that annular air-pocket pressure bag connects top bottom from running pulp occurs and slurry phenomenon of overflowing, and can ensure
Concrete grouting serous fluid directly comes into full contact with roof and floor country rock, greatly improves concrete and is engaged with the cohesive force of roof and floor country rock and sawtooth
Power is sufficient filling with roof and floor wall-rock crack and bad contact surface.
Further, the horizontal lateral spacing anchor pole pre-manufactured hole is fluffy tubular structure；Not using fluffy tubular structure
Only ensure that it is existing effectively to prevent running pulp for tight closure, fully wrapped around horizontal lateral spacing anchor pole after inflation pressure in annular air-pocket pressure bag body
As；And horizontal lateral spacing anchor pole can be made to be in direct contact with concrete perfusion, cohesive force is stronger.
Further, the material of the annular air-pocket pressure bag is essential safe type rubber or PVC material or high strength plastics.
Compared with prior art, the present invention passes through resist displacement anchor and water by the way of annular air-pocket pressure bag
Flat lateral spacing bracing means fixes annular air-pocket pressure bag；Resist displacement anchor is combined into annular air-pocket template and roof and floor
It is whole, enhance concrete filling wall longitudinal shear resistance cut, the effect of resistant slide, resistance to deformation, effectively prevent filled wall bias
Unstable failure；Horizontal lateral spacing bracing means can effectively limit the transversely deforming of filled wall, ensure that gob side entry retaining successfully stays and set, after
Phase deflection is small, can resist multiple roof weighting, improves concrete wall overall stability；Annular air-pocket pressure bag structure, to
It needs to inflate before concrete perfusion inside filling chamber, undertakes the use of hard and soft falsework, it is right after the deflation of annular air-pocket pressure bag
Concrete is filled in it, the two constructs gob side entry retaining roadside packing wall jointly, and whole flow process eliminates frame steel form and tears steel open
The link of template, intermediate slip casting flow without waiting, reduce labor intensity, save the procedure connection time, realize continuous
Change Fast Filling operation, face propulsion speed can be closely followed.
Description of the drawings
Fig. 1 is the front view of annular air bag form in the present invention；
Fig. 2 is A-A sectional views in Fig. 1；
Fig. 3 is the front view of annular air bag form inflation in the present invention；
Fig. 4 is A-A sectional views 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 sectional views in Fig. 5；
Fig. 7 is the front view of annular air bag form air pressure exhaust in the present invention；
Fig. 8 is A-A sectional views in Fig. 7；
Fig. 9 is the front view of annular air bag form slurries slip casting in the present invention；
Figure 10 is A-A sectional views in Fig. 9；
Figure 11 is the dimensional structure diagram of the present invention；
Figure 12 is the saturating schematic diagram of stereochemical structure of resist displacement anchor in the present invention；
Figure 13 is the dimensional structure diagram of resist displacement anchor and 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 plate anchor cable, 3, resistant slide anchor bolt, 4, hang mould iron wire, 5, horizontal side
Limit anchor pole pre-manufactured hole, 6, horizontal lateral spacing anchor pole, 7, unidirectional concrete fill valve, 8, gas 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 plus
Rib tape, 16, bottom longitudinal direction reinforced bands, 17, coal working face, 18, hydraulic support, 19, the filled wall built by laying bricks or stones, 20, exhaust
Hole II, 21, filled wall roofbolt, 22, annular air-pocket pressure bag, 23, anti-running pulp edge of a wing band.
Specific implementation mode
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, the annular
Gasbag pressure bag 22 is that all round closure structure surrounds a filling chamber 11；The unidirectional concrete pouring valve 7 passes through annular air-pocket pressure
The side of bag 22 is connected with the perforation of filling chamber 11, and annular air-pocket pressure bag 22 is equipped with check valve air-filled pore 9, gas vent I 8 and row
Stomata II 20, annular air-pocket pressure bag 22 are equipped with horizontal lateral spacing anchor pole pre-manufactured hole 5, and the top of filling chamber 11 is equipped with top longitudinal direction
The bottom of reinforced bands 13 and top transversal reinforcement band 14, filling chamber 11 is equipped with bottom transverse direction reinforced bands 15 and bottom longitudinal direction reinforced bands
16。
Further, it is respectively equipped with anti-running pulp edge of a wing band 23 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 is good still belongs to broken roof and floor, and concrete grouting slurries can rely on self gravitation effect
It to the compacting of anti-running pulp edge of a wing band 23, compresses, prevents the edge that annular air-pocket pressure bag 22 connects top bottom from running pulp occurs and slurry phenomenon of overflowing,
And can ensure that concrete grouting serous fluid directly comes into full contact with roof and floor country rock, greatly improve the cohesive force of concrete and roof and floor country rock
With sawtooth snap-in force, be sufficient filling with roof and floor wall-rock crack and bad contact surface.
Further, the horizontal lateral spacing anchor pole pre-manufactured hole 5 is fluffy tubular structure；Not using fluffy tubular structure
Only ensure that tight closure, fully wrapped around horizontal lateral spacing anchor pole 6 effectively prevent running pulp after inflation pressure in 22 body of annular air-pocket pressure bag
Phenomenon；And horizontal lateral spacing anchor pole 6 can be made to be in direct contact with concrete perfusion, cohesive force is stronger.
Further, the material of the annular air-pocket pressure bag 22 is essential safe type rubber or PVC material or high strength plastics.
The course of work is：
By the lane in front of concrete wall, applies according to conventional construction method along gob side entry retaining direction corresponding position and fill
The carry out supporting of wall roofbolt 21, roofbolt pallet, filled wall top plate anchor cable, anchor bolt pallet, anchorage and bar-mat reinforcement,
Construction top, the anchor bolt drilling of bottom plate and anchor bolt reaming together, the anchoring resistant slide anchor bolt 3 in top, bottom plate correspond to drilling connect simultaneously
It and puts on N-shaped pallet, it is interior to tighten nut；The bulk of gob side entry retaining lane side wall to be filled is reserved, if close to goaf
When 10 side spoil inbreaks are serious or roof stability is poor, wooden prop or the support of backboard cutaneous branch are being applied close to 10 side of goaf
Top plate ensures wall stability of cavern roof to be filled；In spatial position to be filled, places gob-side entry retaining concrete and fill wall annular gas
Capsule template paves bottom transverse direction reinforced bands 15 and bottom longitudinal direction reinforced bands 16；In annular air-pocket pressure bag 22, resistant slide is installed
Anchor pole 1 makes its internal thread be tightened on 3 external screw thread of resistant slide anchor bolt；Horizontal lateral spacing anchor in 22 both sides of annular air-pocket pressure bag
Bar pre-manufactured hole 5 installs horizontal lateral spacing anchor rod to wearing horizontal lateral spacing anchor pole 6, at horizontal 6 both ends of lateral spacing anchor pole；Using extension mould iron
For silk 4 by 22 Suspending fixation of annular air-pocket pressure bag to roofbolt or bar-mat reinforcement position, hanging mould iron wire 4 both can directly bind top
Plate is easy to hitch point, and hook form can also be used and directly hang；Template first closes gas vent I 8 and gas vent II after installation is complete
20, it then uses inflator or pressure ventilation pipe to dock one-way cock air-filled pore, is inflated into 22 body of annular air-pocket pressure bag, ensure gas
Capsule pressure bag 22 is completely attached to roof and floor to prevent running pulp, and keeps stable gas pressure；After completing inflation, one-way cock inflation is closed
Unidirectional concrete pouring valve 7 is connected concrete pumping equipment by hole 9, by unidirectional concrete pouring valve 7 to being perfused inside filling chamber 11
Concrete slurry, at this time the dependence grouting serous fluid self gravitation effect of anti-running pulp edge of a wing band 23 compacting of roof and floor compress, and wait for slurries
Be perfused it is full after, close unidirectional concrete pouring valve 7 in time, extract filling concrete pipeline, stand condensation a period of time, wait for 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 templates
Filling concrete, after the concrete being perfused in the filling chamber 11 reaches preset strength, open gas vent I 8 and gas vent II 20,
By the one of gas vent of filling concrete piping connection, the concrete perfusion into annular air-pocket pressure bag 22, while its is another
A gas vent is vented outward, stops perfusion after slurries in annular air-pocket pressure bag 22 are full, is stood condensation and is waited for it for a period of time
After intensity reaches, the concrete in concrete and filling chamber in annular air-pocket pressure bag 22 is made to construct wall by lane jointly.
Claims (4)
1. a kind of gob-side entry retaining concrete fills wall annular air-pocket template, which is characterized in that including annular air-pocket pressure bag (22)
With unidirectional concrete pouring valve (7), the annular air-pocket pressure bag (22) is that all round closure structure surrounds a filling chamber (11)；It is described
Unidirectional concrete pouring valve (7) passes through the side of annular air-pocket pressure bag (22) to be connected with filling chamber (11) perforation, annular air-pocket pressure
Power bag (22) is equipped with check valve air-filled pore (9), gas vent I (8) and gas vent II (20), and annular air-pocket pressure bag is set on (22)
There are horizontal lateral spacing anchor pole pre-manufactured hole (5), the top of filling chamber (11) to be equipped with top longitudinal direction reinforced bands (13) and top transversal reinforcement
The bottom of band (14), filling chamber (11) is equipped with bottom transverse direction reinforced bands (15) and bottom longitudinal direction reinforced bands (16).
2. a kind of gob-side entry retaining concrete according to claim 1 fills wall annular air-pocket template, which is characterized in that filling
It fills out the top of chamber (11) and bottom and is respectively equipped with anti-running pulp edge of a wing band (23).
3. a kind of gob-side entry retaining concrete according to claim 1 or 2 fills wall annular air-pocket template, which is characterized in that
The horizontal lateral spacing anchor pole pre-manufactured hole (5) is fluffy tubular structure.
4. a kind of gob-side entry retaining concrete according to claim 1 or 2 fills wall annular air-pocket template, which is characterized in that
The material of the annular air-pocket pressure bag (22) is essential safe type rubber or PVC material or high strength plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610459242.6A CN106194250B (en) | 2016-06-22 | 2016-06-22 | A kind of gob-side entry retaining concrete filling wall annular air-pocket template |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610459242.6A CN106194250B (en) | 2016-06-22 | 2016-06-22 | A kind of gob-side entry retaining concrete filling wall annular air-pocket template |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106194250A CN106194250A (en) | 2016-12-07 |
| CN106194250B true CN106194250B (en) | 2018-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610459242.6A Active CN106194250B (en) | 2016-06-22 | 2016-06-22 | A kind of gob-side entry retaining concrete filling wall annular air-pocket template |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109736563B (en) * | 2019-03-01 | 2024-04-16 | 中交第二航务工程勘察设计院有限公司 | Rigid-flexible transition die of large-scale die plate and application method |
| CN110219685B (en) * | 2019-07-08 | 2020-09-18 | 哈密豫新能源产业研究院有限责任公司 | Roof reinforcing grouting equipment and grouting method |
| CN112176810B (en) * | 2020-09-08 | 2022-01-25 | 喜跃发国际环保新材料股份有限公司 | Combined pneumatic precast concrete pavement laying method |
Citations (4)
| 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 |
-
2016
- 2016-06-22 CN CN201610459242.6A patent/CN106194250B/en active Active
Patent Citations (4)
| 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 |
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| Publication number | Publication date |
|---|---|
| CN106194250A (en) | 2016-12-07 |
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| CB03 | Change of inventor or designer information |
Inventor after: Li Ang Inventor after: Ma Qiang Inventor after: Chen Jianbo Inventor after: Li Liang Inventor after: Mou Qian Inventor after: Liu Peng Inventor before: Li Ang |
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