CN207093108U - Gob side entry retaining crosses cutting eye supporting facility - Google Patents
Gob side entry retaining crosses cutting eye supporting facility Download PDFInfo
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- CN207093108U CN207093108U CN201720577533.5U CN201720577533U CN207093108U CN 207093108 U CN207093108 U CN 207093108U CN 201720577533 U CN201720577533 U CN 201720577533U CN 207093108 U CN207093108 U CN 207093108U
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- cutting
- eye
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- cylinder
- cash
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Abstract
The utility model discloses gob side entry retaining to cross cutting eye supporting facility, is arranged at the cutting eye in coal cutting roadway, including the support facility for being arranged on the gear cash facility of cutting intraocular and being arranged in tunnel is formed；Keeping off cash facility includes gear cash net, gear cash pillar, and gear cash net is arranged on cutting intraocular and completely closure cutting eye；The tunnel side for keeping off cash net sets gear cash pillar, and gear cash pillar is supported between cutting eye top plate and cutting eyeground plate, and the tunnel side of gear cash pillar sets another gear cash net again；Facility is supported to include some support columns and some backboards on support column；Support column is made up of cylinder epimere and cylinder hypomere, and cylinder hypomere on tunnel parallel to helping, eye mouth of the cylinder epimere across cutting eye.Backboard sets on the support columns and blocks cutting eye.The utility model can be used for being used when exploiting under high-dipping medium-thickness seam, the irregular tunnel of section and complex geological condition, in use, indwelling fender is only needed to complete gob side entry retaining, in the case of moving towards a length of 2000m by working face, each working face receives about 7000 tons of coal more.
Description
Technical field
The utility model is specifically related to the stope drift active workings of down-hole coal excavation along Kong Hu lanes support technology, crosses and cuts especially in tunnel
Cut the supporting facility at eye.
Background technology
With the sixties in last century, some developed countries in the world are to using gob-side entry retaining method to realize no coal column
The technology of exploitation has carried out numerous studies, and become basically universal no coal pillar mining, and by the development of decades, China is in gob side entry retaining skill
Great achievement is also achieved in terms of art.Gob side entry retaining apply in general to exploitation it is slow tiltedly and tilt, thickness below 2m Bao Jizhong
High seam.Compared with this method is when staying coal column, section coal pillar loss can be not only reduced, and can largely reduce drift miner
Cheng Liang
Only stay coal pillar mining technology in nearly horizontal, slow oblique thin and medium seam and preferable roof and floor condition both at home and abroad at present
Applicable cases it is preferable, and for staying coal column under high-dipping medium-thickness seam, the irregular tunnel of section and complex geological condition
Production technique research is also immature, for example the direct top of working seam is mud stone, Sandy Silt, the weak top that joint is more developed
Plate.In order to ensure normally to exploit, exploited under high-dipping medium-thickness seam and complex geological condition, 20m is set using traditional staying
Big coal column method and lived using girder steel point plus anchor pole, anchor net, anchor cable carry out supporting, indwelling 20m's is big because wanting for this kind of method
Coal column, can only retain always after coal column indwelling to produce, therefore loss of the indwelling coal column to coal mining output is very big.
Meanwhile after indwelling coal column, it is also necessary to cutting eye mouth is stamped on coal column, for entering coal excavation apparatus and coal miner
Coal-face is entered at cutting eye.Cut at eye without coal column, therefore support more weakness, artificial supporting particularly to close herein
Key.
Therefore, wasted to more produce coal without causing to exploit, it would be desirable to the more excellent gob-side entry retaining support of design
Mode.
Utility model content
In order to solve the above-mentioned technical problem, the utility model overcomes the shortcomings that prior art, there is provided gob side entry retaining, which is crossed, to be cut
Cut a supporting facility.Efficiently solve and carried out under high-dipping medium-thickness seam, the irregular tunnel of section and complex geological condition
The problem of gob side entry retaining.
Gob side entry retaining crosses cutting eye supporting facility, is arranged at the cutting eye in coal cutting roadway 101, including be arranged on cutting
Gear cash facility in eye 103 is formed with the support facility being arranged in tunnel；Described gear cash facility includes gear cash net 6, gear cash
Pillar 104, gear cash net are arranged in cutting eye 103, vertical with cutting eye, and closure cutting eye 103 completely；Keep off the tunnel of cash net
Side sets gear cash pillar 104, and gear cash pillar is supported between cutting eye top plate and cutting eyeground plate, keeps off the tunnel side of cash pillar again
Another gear cash net is set；Described support facility includes some support columns and some backboards 3 on support column；Described support column
2 are arranged on tunnel at eye mouth of the side with cutting eye, and support column is made up of cylinder epimere and cylinder hypomere, and cylinder epimere is with respect to post
Body hypomere carries out axis deflection, makes cylinder hypomere parallel to being helped on tunnel, eye mouth of the cylinder epimere across cutting eye；Backboard 3 is set
Put on the support columns, and the eye mouth of closure cutting eye completely.
Gob side entry retaining as described above crosses cutting eye supporting facility, specifically, being provided between being helped on support column and tunnel
Some backboards.
Gob side entry retaining as described above crosses cutting eye supporting facility, specifically, the lower end of described cylinder hypomere sets wedge
Enter end, the front end of cylinder epimere is provided with wedging drop hanger 1；Described wedging drop hanger is by chock 1-1 and the drop hanger 1-2 at chock rear
Form, the front end of cylinder epimere is inserted in drop hanger.
Gob side entry retaining as described above crosses cutting eye supporting facility, specifically, described cylinder epimere and cylinder hypomere is equal
It is obliquely installed；Connected between cylinder epimere and cylinder hypomere by ring flange 4.Described cylinder epimere and cylinder hypomere are 11#
I-steel.
Gob side entry retaining as described above crosses cutting eye supporting facility, specifically, what described chock was be arranged in parallel by two
Wedge nail is formed, and drop hanger is attached at the rear portion that wedge is followed closely, and by the rear portion of two wedge nails；Wedge reinforcing bar of the drop hanger by Φ 28mm
Bending is made.
Gob side entry retaining as described above crosses cutting eye supporting facility, specifically, described backboard level is across in two posts
Between body；Backboard be cement plate, wood chip, bamboo chip combination or one of.
Gob side entry retaining as described above crosses cutting eye supporting facility, specifically, described backboard top is provided with obturation
105, obturation be the wooden tip, crushed stone combination or one of.
Gob side entry retaining as described above crosses cutting eye supporting facility, specifically, described gear cash net surrounding is provided with anchor pole
5, anchor pole squeezes into cutting eye top plate and cutting eyeground plate, and the anchor pole that four sides are crossed by Dang Gan Netcoms is fixed on cutting intraocular.
The beneficial effects of the utility model are：
Supporting facility of the present utility model carries out very effective supporting to crossing for gob side entry retaining coal cutting roadway at cutting eye,
Supporting construction process is simple, easy to operate, and supporting is firm, and the utility model production cost is low.
The utility model can be used under high-dipping medium-thickness seam, the irregular tunnel of section and complex geological condition
Used when being exploited, in use, it is only necessary to which indwelling fender can complete gob side entry retaining, move towards a length of by working face
In the case of 2000m, each working face receives about 7000 tons of coal more.
Brief description of the drawings
Fig. 1 is the utility model structure chart.
Fig. 2 is that the utility model supports facility structure schematic diagram.
Fig. 3 is the backboard scheme of installation that the utility model the utility model supports facility.
Fig. 4 is that the utility model wedges drop hanger structural representation.
Fig. 5 is that the utility model keeps off cash web frame schematic diagram.
Wherein：
Coal cutting roadway 101；Spoil 102；Cut eye 103；Keep off cash pillar 104；Obturation 105；Wedge drop hanger 1；Support column
2；Backboard 3；Ring flange 4；Anchor pole 5；Keep off cash net 6；Chock 1-1；Drop hanger 1-2.
Embodiment
It is specific below in conjunction with the utility model to make the purpose of this utility model, technical scheme and advantage clearer
Technical solutions of the utility model are clearly and completely described for embodiment and corresponding accompanying drawing.
With reference to figure 1, the utility model is arranged at the cutting eye in coal cutting roadway 101, including is arranged in cutting eye 103
Gear cash facility and the support facility that is arranged in tunnel form.The main function for keeping off cash facility is to block to adopt from coal-face
The spoil 102 that dead zone glides, does not make spoil be slipped in tunnel.
Gear cash net is arranged in cutting eye 103, vertical with cutting eye, and closure cutting eye 103 completely；Gear cash net surrounding is set
Anchor pole 5 is equipped with, anchor pole squeezes into cutting eye top plate and cutting eyeground plate, and the anchor pole that four sides are crossed by Dang Gan Netcoms is fixed on cutting intraocular.
Gear cash pillar is supported between cutting eye top plate and cutting eyeground plate.Meeting natural downslide, is slipped down to after when goaf, spoil is caving
Cash net is kept off when at gear cash net partly to stop that spoil continues to glide, and keeping off cash net certainly can not stop that substantial amounts of spoil glides completely,
Spoil, which can oppress gear cash net, makes it deform downwards, until being depressed at gear cash pillar, most of weight that spoil glides is by gear cash
Pillar absorbs, so as to thoroughly stop cutting intraocular spoil.Gear cash net under gear cash pillar is used to block to spill from upper side block cash net
Tiny spoil.
It is average that a support column 2 is set per 800mm in coal cutting roadway, and at the eye mouth of cutting eye, be equally also provided with
The support column.Support column is 11# I-steel, is made up of cylinder epimere and cylinder hypomere, and cylinder epimere counter-cylinder hypomere is carried out
Axis deflects, and forms 114 degree of angle, and cylinder hypomere on tunnel parallel to helping, and cylinder epimere is across the eye mouth for cutting eye；Cylinder
Connected between epimere and cylinder hypomere by ring flange 4.Backboard 3 is set on the support columns, and the eye mouth of closure cutting eye completely.
The quantity of backboard 3 is also unlimited, and when the eye mouth of eye is cut in closure, backboard is close to be taken, and is left no gaps, and prevents spoil is scurried out from hurting sb.'s feelings,
The dense degree of backboard is adapted to reduce at side on tunnel.Backboard be cement plate, wood chip, bamboo chip combination or one of, by thin
Wire binding is on cylinder.
The lower end of cylinder hypomere sets wedging end, and wedging end is wedged into roadway floor, and at least submerges 300mm in bottom plate
Length.
The front end of cylinder epimere is provided with wedging drop hanger 1；Drop hanger is wedged by chock 1-1 and the drop hanger 1-2 structures at chock rear
Into the front end of cylinder epimere is inserted in drop hanger.Chock is made up of two wedges be arrangeding in parallel nail, drop hanger at the rear portion that wedge is followed closely, and
The rear portion of two wedge nails is attached；Wedging drop hanger is made up of Φ 28mm bending reinforcement, and chock is squeezed under tunnel in side
About 700mm, it is retained in outside and is divided into 200mm.
Backboard top is provided with obturation 105, obturation be the wooden tip, crushed stone combination or one of, obturation can be further
Stop the possibility that spoil is scurried out.
Support column can play a protective role to the overall top plate in tunnel, support tunnel, when gear cash net and the gear of gear cash part
If cash pillar can not bear completely spoil continue glide pressure when, support column can play further protective effect.
The utility model is arranged in coal cutting roadway 101, and after the supporting scheme, the coal column of institute's indwelling can be by before
20m length big coal column be changed to 14m length fender.
Above-mentioned embodiment is used for illustrating the utility model, rather than the utility model is limited, in this reality
With any modifications and changes in new spirit and scope of the claims, made to the utility model, this is both fallen within
The protection domain of utility model.
Claims (8)
1. gob side entry retaining crosses cutting eye supporting facility, it is arranged at the cutting eye in coal cutting roadway, it is characterised in that including setting
Formed in the gear cash facility of cutting intraocular with the support facility being arranged in tunnel；Described gear cash facility includes gear cash net, gear
Cash pillar, gear cash net are arranged on cutting intraocular, vertical with cutting eye, and closure cutting eye completely；The tunnel side for keeping off cash net is set
Keep off cash pillar, gear cash pillar be supported on cutting eye top plate and cutting eyeground plate between, gear cash pillar tunnel side set again it is another
Keep off cash net；Described support facility includes some support columns and some backboards on support column；Described support column is arranged on lane
On road at eye mouth of the side with cutting eye, support column is made up of cylinder epimere and cylinder hypomere, and cylinder epimere counter-cylinder hypomere enters
Row axis deflects, and makes cylinder hypomere parallel to being helped on tunnel, eye mouth of the cylinder epimere across cutting eye；Backboard is arranged on support column
On, and the eye mouth of closure cutting eye completely.
2. gob side entry retaining as claimed in claim 1 crosses cutting eye supporting facility, it is characterised in that described support column and tunnel
Some backboards are provided between upper side.
3. gob side entry retaining as claimed in claim 1 crosses cutting eye supporting facility, it is characterised in that under described cylinder hypomere
End sets wedging end, and the front end of cylinder epimere is provided with wedging drop hanger；Described wedging drop hanger is hung by chock and chock rear
Hook and form, the front end of cylinder epimere is inserted in drop hanger.
4. gob side entry retaining as claimed in claim 1 crosses cutting eye supporting facility, it is characterised in that described cylinder epimere and post
Body hypomere is obliquely installed；Connected between cylinder epimere and cylinder hypomere by ring flange；Under described cylinder epimere and cylinder
Section is 11# I-steel.
5. gob side entry retaining as claimed in claim 3 crosses cutting eye supporting facility, it is characterised in that described chock is flat by two
The wedge nail that row is set is formed, and drop hanger is attached at the rear portion that wedge is followed closely, and by the rear portion of two wedge nails；Wedging drop hanger passes through Φ
28mm bending reinforcement is made.
6. gob side entry retaining as claimed in claim 1 crosses cutting eye supporting facility, it is characterised in that described backboard level across
Between two cylinders；Backboard be cement plate, wood chip, bamboo chip combination or one of.
7. gob side entry retaining as claimed in claim 1 crosses cutting eye supporting facility, it is characterised in that described backboard top is set
Have an obturation, obturation be the wooden tip, crushed stone combination or one of.
8. gob side entry retaining as claimed in claim 1 crosses cutting eye supporting facility, it is characterised in that described gear cash net surrounding is set
Anchor pole is equipped with, anchor pole squeezes into cutting eye top plate and cutting eyeground plate, and the anchor pole that four sides are crossed by Dang Gan Netcoms is fixed on cutting intraocular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720577533.5U CN207093108U (en) | 2017-05-23 | 2017-05-23 | Gob side entry retaining crosses cutting eye supporting facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720577533.5U CN207093108U (en) | 2017-05-23 | 2017-05-23 | Gob side entry retaining crosses cutting eye supporting facility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207093108U true CN207093108U (en) | 2018-03-13 |
Family
ID=61551082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720577533.5U Expired - Fee Related CN207093108U (en) | 2017-05-23 | 2017-05-23 | Gob side entry retaining crosses cutting eye supporting facility |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207093108U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116201578A (en) * | 2023-05-05 | 2023-06-02 | 中国矿业大学(北京) | Roof-cutting pressure-relief self-forming roadway stone-breaking side bidirectional bearing control system |
-
2017
- 2017-05-23 CN CN201720577533.5U patent/CN207093108U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116201578A (en) * | 2023-05-05 | 2023-06-02 | 中国矿业大学(北京) | Roof-cutting pressure-relief self-forming roadway stone-breaking side bidirectional bearing control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180313 Termination date: 20190523 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |