CN208310825U - Gob side entry driving fender erosion control release anchors integral structure to drawing - Google Patents
Gob side entry driving fender erosion control release anchors integral structure to drawing Download PDFInfo
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- CN208310825U CN208310825U CN201820787018.4U CN201820787018U CN208310825U CN 208310825 U CN208310825 U CN 208310825U CN 201820787018 U CN201820787018 U CN 201820787018U CN 208310825 U CN208310825 U CN 208310825U
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- erosion control
- side entry
- control release
- entry driving
- anchor cable
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Abstract
The utility model discloses a kind of gob side entry driving fender erosion control releases to anchor integral structure to drawing, in gob side entry driving fender using upper and lower two rows of to drawing anchor cable support reinforcement, upper row uses erosion control release large diameter borehole to the drilling for drawing anchor cable, large diameter borehole both ends are closed using concrete filling, and middle part is sky.On coal column construct large diameter borehole and install to draw anchor cable, it realizes erosion control release and installation anchor cable function is combined into one, realize the release of coal column erosion control and the double action to the two-way reinforcing coal column of anchor cable is drawn, improve stability of coal pillar, reduce lane side deformation, concrete enclosing drilling both ends can prevent from breaking drawing anchor cable and fly out, and prevent toxic and harmful gas and water in gob area from entering gob side entry driving crossheading.It is reinforced suitable for coal mine coal column erosion control release.
Description
Technical field
The utility model belongs to coal mine gob side entry driving technical field, and in particular to a kind of gob side entry driving fender erosion control release
Integral structure is anchored to drawing.
Background technique
Coal recovery rate can be improved with reasonable development coal resources without coal pillar mining, reduce tunnelling amount.No coal column is opened
Adopt mainly include gob side entry driving without coal pillar mining and gob side entry retaining without coal pillar mining two ways.Gob side entry driving is in a upper work
Make after mining influence caused by the back production of face is stablized along mined out area edge digging laneway.In practical applications, pick lane tunnel with it is upper
Coal pillar width between one roadway workface, which stays, to be set from 3 to 8m etc., and reserved coal pillar is in stress relaxed area, but buries some
Deep big, strong mine pressure has the mine of shock hazard when carrying out gob side entry driving, and coal column compressive deformation is serious, and lane side displacement is big,
Still there is certain impulsion pressure risk, threatens mine safety production.When usual manner reinforces fender using anchor cable, anchorage cable anchoring
Duan Caiyong resin anchoring agent, after fender pressure is crisp, anchorage cable anchoring power is greatly reduced, and consolidation effect is poor, and roadway deformation is big.In order to drop
Low impulsion pressure risk reduces gob side entry surrouding rock deformation, increases gob side entry driving fender intensity, needs to study a kind of with anti-
Punching, release, the structure for reinforcing fender.
Utility model content
In view of the above deficiencies, the purpose of the utility model is to provide a kind of gob side entry driving fender erosion control releases anchors drawing
Integral structure.The utility model is easy to operate, realizes coal column and shifts to an earlier date release and to the dual of the drawing two-way reinforcing coal column of anchor cable
Effect.
What the utility model adopts the following technical solution to realize:
Gob side entry driving fender erosion control release anchors integral structure to drawing, including be arranged on gob side entry driving fender,
It is lower it is two rows of for reinforcing to drawing anchor cable, wherein upper row uses erosion control release large diameter borehole, and upper row to drawing the drilling of anchor cable
To drawing anchor cable to pass through erosion control release large diameter borehole, lower row uses slim hole to the drilling of drawing anchor cable, and lower row is to drawing anchor
Rope passes through slim hole；The filling of erosion control release large diameter borehole both ends is closed with concrete, and middle part is sky；It is upper and lower two rows of right
It draws the ipsilateral both ends of anchor cable to be all made of metal mesh to connect with steel band；To draw anchor cable include a steel strand, both ends arrangement two
Two locksets of a supporting plate and both ends arrangement；Metal mesh includes the first metal mesh and the second metal mesh, and steel band includes the first steel band
With the second metal mesh, two supporting plates are respectively the first supporting plate and the second supporting plate, and two locksets are respectively the first lockset and the second lock
Tool；Steel strand sequentially passes through the first lockset, the first supporting plate, the first steel band, the first metal mesh, gob side entry driving fender,
Two metal meshes, the second steel band, the second supporting plate and the second lockset.
The utility model, which further improves, to be, the width of gob side entry driving fender is 4-8m.
The utility model, which further improves, to be, the diameter of erosion control release large diameter borehole is not less than 150mm.
The utility model, which further improves, to be, the concrete length of erosion control release large diameter borehole both ends filling is
0.5-1.0m。
The utility model, which further improves, to be, the diameter of slim hole is not more than 42mm, drilling depth 6m-20m.
The utility model, which further improves, to be, steel strand is 0.3m-0.5m in goaf side exposed length.
The utility model has following beneficial technical effect:
The utility model provides a kind of gob side entry driving fender erosion control release and anchors integral structure to drawing, and realizes anti-
It rushes release and installation anchor cable function drilling is combined into one, reduce the punching quantity on coal column；Realize coal column shift to an earlier date release and
Double action to the two-way reinforcing coal column of anchor cable is drawn；It prevents from breaking the wound that flies out to drawing anchor cable after drilling both ends concrete enclosing
People prevents toxic and harmful gas and water body from drilling into gob side entry driving crossheading from goaf；Solves the reinforcing of usual manner anchor cable
The problem of fender anchor force is greatly reduced；It realizes big buried depth, strong mine pressure, there is shock hazard mine to stay in gob side entry driving
If the erosion control release of coal column and support reinforcement have further consolidated safety production condition when gob side entry driving back production.This is practical new
Type can be widely applied to the fields such as coal mine, metal mine, Tunnel Engineering.
Detailed description of the invention
Fig. 1 is the utility model gob side entry driving position view；
Fig. 2 is that the fender erosion control release of the utility model gob side entry driving anchors integral structure cross-section diagram to drawing；
Fig. 3 is the utility model to drawing anchor cable structure schematic diagram；
Fig. 4 is that the utility model gob side entry driving fender anchors integral structure enlarged drawing to drawing to drawing release.
In figure: 1- gob side entry driving fender；Row is to drawing anchor cable on 2-；3- erosion control release large diameter borehole；Row is to drawing under 4-
Anchor cable；5- slim hole；6- concrete；7- metal mesh；The first metal mesh of 7-1-；The second metal mesh of 7-2-；8- steel band；8-1-
First steel band；The second steel band of 8-2-；9- steel strand；10- supporting plate；The first supporting plate of 10-1-；The second supporting plate of 10-2-；11- lock
Tool；The first lockset of 11-1-；The second lockset of 11-2-；12- upper curtate face belt crossheading；13- lower curtate working face is along empty pick
Lane.
Specific embodiment
The utility model is made further instructions below in conjunction with drawings and examples.
Embodiment:
A coal mine is when gob side entry driving stays and sets fender using erosion control release to drawing anchoring integral structure and construction method, A
3 coal of stope of coal mines, 3 coal average thickness be 5m, flat seam, buried depth 500m or so, working face arrange two crossheadings, respectively
Haulage gate and air return way.30104 working face air return way use gob side entry driving, 30104 working face air return way and 30102
It is stayed between working face haulage gate and sets fender, fender width 6m.3 coals are accredited as weak Burst Tendency coal seam, which exists
Integral structure is anchored to drawing using erosion control release when implementing gob side entry driving.
Gob side entry driving fender erosion control release is to the construction method for drawing anchoring integral structure, and its step are as follows:
1) prepare: 30102 working face of upper curtate arranges two crossheadings, using drawing back, 30104 working face of lower curtate
Gob side entry driving 13 prepares, and is gob side entry driving fender 1 between two working faces；
2) it drills: in the upper curtate 30102 face belt crossheading 12 adjacent with 30104 working face of lower curtate, non-
The top of back production side is constructed erosion control release large diameter borehole 3, lower side construction slim hole 5, large diameter borehole depth 15m, small
Diameter bores depth 7m；
3) steel strand wires are installed: being inserted into the steel strand 9 of diameter 21.6mm, 7m long in large and small diameter bores, to drawing steel
Twisted wire 9 fills in end and plastic protective sleeve is arranged in advance, leans on goaf side one in erosion control release large diameter borehole 3 and slim hole 5
End plug enters the concrete 6 that length is 1.0m and carries out filling closing, 9 goaf side exposed length of steel strand to drilling end
0.5m；
4) adhesive tape crossheading non-back production side linked network install steel band lockset: 12 non-back production side of upper curtate face belt crossheading according to
The first metal mesh 7-1 of secondary extension, the first steel band 8-1, the first steel band 8-1 both ends of the hole pass through upper and lower steel strand 9, to upper and lower right
Drawing steel stranded wire 9 installs the fixed steel strand 9 of the first supporting plate 10-1 and the first lockset 11-1, upper curtate face belt crossheading 12
Work terminates；
5) fender gob side entry driving: 30104 working face gob side entry driving 13 of lower curtate lags 30102 working face of upper curtate
400m-500m distance driving, the gob side entry driving fender 1 of 6m, lower curtate working face gob side entry driving 13 are retained according to design width
Upper and lower steel strand 9 can be shown in driving by goaf side coal side；
6) it digs fender side coal wall linked network in lane and steel band lockset is installed: in gob side entry driving, in erosion control release large diameter borehole
3, filled in slim hole 56 pairs of concrete of length 1.0m length drillings by 13 one end of lower curtate working face gob side entry driving into
Row filling closing, then successively hangs the second metal mesh 7-2, the second steel band 8-2, and the second steel band 8-2 both ends of the hole passes through above and below to drawing
Steel strand wires install the fixed steel strand 9 of the second supporting plate 10-2 and the second lockset 11-2 to upper and lower steel strand, to large and small
Pretightning force on steel strand 9 in drilling forms the release of gob side entry driving fender erosion control and anchors integral structure to drawing.
The structure that the above method is formed is as follows:
As shown in Figures 1 to 4: gob side entry driving fender erosion control release anchors integral structure to drawing: small in gob side entry driving
For coal column 1 using upper and lower two rows to drawing anchor cable to reinforce, upper row uses erosion control release large diameter borehole 3 to the drilling for drawing anchor cable 2；Institute
The upper row stated passes through diameter 42mm to drawing anchor cable 4 to the erosion control release large diameter borehole 3 for drawing anchor cable 2 to pass through diameter 150mm, lower row
Slim hole 5；3 both ends of erosion control release large diameter borehole are sky using the filling closing of concrete 6, drilling middle part；
The upper and lower two rows connect the drawing ipsilateral both ends of anchor cable using metal mesh 7, steel band 8；Described pair of drawing anchor cable is by one to drawing steel
Two locksets 11 composition of twisted wire 9, two supporting plates 10 of both ends arrangement and both ends arrangement；Metal mesh 7 includes the first metal mesh 7-1
With the second metal mesh 7-2, steel band 8 includes the first steel band 8-1 and the second metal mesh 7-2, and two supporting plates 10 are respectively the first supporting plate
10-1 and the second supporting plate 10-2, two locksets 11 are respectively the first lockset 11-1 and the second lockset 11-2；Steel strand 9 is successively
Across the first lockset 11-1, the first supporting plate 10-1, the first steel band 8-1, the first metal mesh 7-1, gob side entry driving fender 1, second
Metal mesh 7-2, the second steel band 8-2, the second supporting plate 10-2 and the second lockset 11-2.
Claims (6)
1. gob side entry driving fender erosion control release anchors integral structure to drawing, which is characterized in that including being arranged in gob side entry driving
Fender (1) is upper and lower two rows of for reinforcing to drawing anchor cable, wherein upper row uses erosion control release big the drilling for drawing anchor cable (2)
Diameter bores (3), and upper row passes through erosion control release large diameter borehole (3), drilling of the lower row to anchor cable (4) are drawn to drawing anchor cable (2)
Using slim hole (5), and lower row passes through slim hole (5) to drawing anchor cable (4)；Erosion control release large diameter borehole (3) two
End filling is closed with concrete (6), and middle part is sky；Upper and lower two rows are all made of metal mesh (7) and steel band to the drawing ipsilateral both ends of anchor cable
(8) it connects；To drawing anchor cable to include a steel strand (9), two of two supporting plates (10) and both ends arrangement that both ends are arranged
Lockset (11)；Metal mesh (7) includes the first metal mesh (7-1) and the second metal mesh (7-2), and steel band (8) includes the first steel band (8-
1) with the second metal mesh (7-2), two supporting plates (10) are respectively the first supporting plate (10-1) and the second supporting plate (10-2), two locksets
It (11) is respectively the first lockset (11-1) and the second lockset (11-2)；Steel strand (9) sequentially pass through the first lockset (11-1),
First supporting plate (10-1), the first steel band (8-1), the first metal mesh (7-1), gob side entry driving fender (1), the second metal mesh (7-
2), the second steel band (8-2), the second supporting plate (10-2) and the second lockset (11-2).
2. gob side entry driving fender erosion control release according to claim 1 anchors integral structure to drawing, which is characterized in that
The width of gob side entry driving fender (1) is 4-8m.
3. gob side entry driving fender erosion control release according to claim 1 anchors integral structure to drawing, which is characterized in that
The diameter of erosion control release large diameter borehole (3) is not less than 150mm.
4. gob side entry driving fender erosion control release according to claim 1 anchors integral structure to drawing, which is characterized in that
Concrete (6) length of erosion control release large diameter borehole (3) both ends filling is 0.5-1.0m.
5. gob side entry driving fender erosion control release according to claim 1 anchors integral structure to drawing, which is characterized in that
The diameter of slim hole (5) is not more than 42mm, drilling depth 6m-20m.
6. gob side entry driving fender erosion control release according to claim 1 anchors integral structure to drawing, which is characterized in that
Steel strand (9) is 0.3m-0.5m in goaf side exposed length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820787018.4U CN208310825U (en) | 2018-05-24 | 2018-05-24 | Gob side entry driving fender erosion control release anchors integral structure to drawing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820787018.4U CN208310825U (en) | 2018-05-24 | 2018-05-24 | Gob side entry driving fender erosion control release anchors integral structure to drawing |
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| CN208310825U true CN208310825U (en) | 2019-01-01 |
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| CN201820787018.4U Active CN208310825U (en) | 2018-05-24 | 2018-05-24 | Gob side entry driving fender erosion control release anchors integral structure to drawing |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108590723A (en) * | 2018-05-24 | 2018-09-28 | 中煤能源研究院有限责任公司 | Gob side entry driving fender erosion control release is to drawing anchoring integral structure and construction method |
| CN109505639A (en) * | 2019-01-04 | 2019-03-22 | 山东科技大学 | A kind of gob side entry driving coal column hardened system and its application method |
| CN111946395A (en) * | 2020-06-17 | 2020-11-17 | 华能庆阳煤电有限责任公司核桃峪煤矿 | Pressure relief method for preventing air leakage and communicating accumulated water in goaf |
-
2018
- 2018-05-24 CN CN201820787018.4U patent/CN208310825U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108590723A (en) * | 2018-05-24 | 2018-09-28 | 中煤能源研究院有限责任公司 | Gob side entry driving fender erosion control release is to drawing anchoring integral structure and construction method |
| CN109505639A (en) * | 2019-01-04 | 2019-03-22 | 山东科技大学 | A kind of gob side entry driving coal column hardened system and its application method |
| CN109505639B (en) * | 2019-01-04 | 2020-03-31 | 山东科技大学 | Gob-side entry driving coal pillar reinforcing system and using method thereof |
| CN111946395A (en) * | 2020-06-17 | 2020-11-17 | 华能庆阳煤电有限责任公司核桃峪煤矿 | Pressure relief method for preventing air leakage and communicating accumulated water in goaf |
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