CN208122871U - A kind of anti-wall caving retaining wall suspension device in comprehensive pick face - Google Patents
A kind of anti-wall caving retaining wall suspension device in comprehensive pick face Download PDFInfo
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- CN208122871U CN208122871U CN201721714803.9U CN201721714803U CN208122871U CN 208122871 U CN208122871 U CN 208122871U CN 201721714803 U CN201721714803 U CN 201721714803U CN 208122871 U CN208122871 U CN 208122871U
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- retaining wall
- pick face
- wall
- metal mesh
- fan
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Abstract
The utility model discloses a kind of comprehensive anti-wall caving retaining wall suspension devices in pick face, it includes two fan-shaped metal meshes（2）, two fan-shaped metal meshes（2）It is symmetrically fixed at left and right sides of tunnel；The sector metal mesh（2）By reinforcing bar（1）It is welded into；It is poor using the retaining wall supporting construction security reliability of retaining wall supporting or use due to not having to solve the comprehensive pick face of prior art coal mine, comprehensive pick face coal (rock) wall side falling accident is caused the technical problems such as to happen occasionally.
Description
Technical field
The utility model belongs to the anti-wall caving retaining wall suspension device of underground coal mine support technology more particularly to a kind of comprehensive pick face.
Background technique
In general, the comprehensive pick face technological process of production of underground coal mine is：Preceding preparation → development machine the coal cutting of booting coalings, transports
Coal → haul, cash floating clearly → taps → gib → retaining wall supporting → permanent support → subsequent cycle.Due to the lane Zong Jue
Road cross dimensions is generally large, under the influence of the factors such as down-hole mining disturbance, leads to the oriented free face extruding of coal (rock) body of meeting head on
The tendentiousness dished out, it is easy to occur to injure the safety accident of worker or damage equipment by a crashing object due to coal (rock) wall flaps side, particularly with
Those clear height are larger or the biggish bord-up fully mechanized workface in inclination angle.Therefore, it is permanently propped up for guarantee worker in comprehensive pick face
Operation safety when shield, seeking the comprehensive pick face retaining wall supporting construction that a kind of structure is simple, easy for construction, safe and reliable just seems outstanding
It is important.
Currently, underground much comprehensive pick face due to there is no the retaining wall supporting construction security reliability using retaining wall supporting or use
It is poor, cause comprehensive pick face coal (rock) wall side falling accident to happen occasionally.
Utility model content：
The technical problems to be solved in the utility model：A kind of anti-wall caving retaining wall suspension device in comprehensive pick face is provided, it is existing to solve
There is the comprehensive pick face of technology coal mine due to there is no the retaining wall supporting construction security reliability using retaining wall supporting or use poor, causes comprehensive
Pick face coal (rock) wall side falling accident such as happens occasionally at the technical problems.
Technical solutions of the utility model：
A kind of anti-wall caving retaining wall suspension device in comprehensive pick face, it includes two fan-shaped metal meshes, and two fan-shaped metal meshes are symmetrical
It is fixed at left and right sides of tunnel；It is described sector metal mesh by reinforcement welding at.
The size of mesh opening of fan-shaped metal mesh is 100mm × 100mm；The frame of fan-shaped metal mesh uses φ 22mm steel bar welding
It connects.
Fan-shaped metal mesh is indulged muscle twisted steel anchor rod by left-handed nothing and is fixed on coal wall or palisades；Each sector metal Netcom
The vertical muscle twisted steel anchor rod of two left-handed nothings is crossed to be fixed on coal wall or palisades.
Every left-handed nothing indulges muscle twisted steel anchor rod and carries out end anchorage using two section resin anchoring agents.
The top that left-handed nothing indulges muscle twisted steel anchor rod is furnished with matched pallet and nut, and matched pallet is pressed on fan-shaped metal mesh
It is tightened with nut.
The size that left-handed nothing indulges muscle twisted steel anchor rod is 22 × 1800mm of φ.
The beneficial effects of the utility model：
The supporting construction that the utility model uses belongs to anchor pole active support structure, makes with the cooperation of metal mesh supporting component
With greatly improving comprehensive pick face and meet head on coal（Rock）The stability of body can effectively prevent in driving Bracing Process because of coal（Rock）Wall loses
Steady wall caving cause personnel injure by a crashing object, the safety accidents such as equipment damage；The utility model is not only simple in structure, easy for construction, Er Qieneng
Comprehensive pick face is substantially improved to meet head on coal（Rock）The stress of body guarantees construction peace of the comprehensive pick face worker when carrying out permanent support
Entirely；The comprehensive pick face of prior art coal mine is solved due to not having the retaining wall supporting construction security reliability using retaining wall supporting or use
It is poor, cause comprehensive pick face coal (rock) wall side falling accident the technical problems such as to happen occasionally.
Detailed description of the invention：
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the utility model structure schematic side view.
Specific embodiment：
A kind of anti-wall caving retaining wall suspension device in comprehensive pick face, it includes two fan-shaped metal meshes 2, and two fan-shaped metal meshes 2 are right
Title is fixed at left and right sides of tunnel；The sector metal mesh 2 is welded by reinforcing bar 1.
The size of mesh opening of fan-shaped metal mesh 2 is 100mm × 100mm；The frame of fan-shaped metal mesh 2 uses φ 22mm steel bar welding
It connects.
Fan-shaped metal mesh 2 is indulged muscle twisted steel anchor rod 3 by left-handed nothing and is fixed on coal wall or palisades 6；Each sector metal
Net 2 is indulged muscle twisted steel anchor rod 3 by two left-handed nothings and is fixed on coal wall or palisades 6；The utility model indulges muscle using left-handed nothing
Fan-shaped metal mesh 2 is fixed on coal wall or palisades 6 by twisted steel anchor rod 3；To be easy for installation and removal, the construction time is saved,
Reduce difficulty of construction.
Every left-handed nothing indulges muscle twisted steel anchor rod 3 and uses two section resin anchoring agents（5）End anchorage is carried out, prevents anchor pole from existing
Failure is loosened in wall supporting Bracing Process.
The top that left-handed nothing indulges muscle twisted steel anchor rod 3 is furnished with matched pallet 4 and nut, and matched pallet 4 is pressed in fan-shaped metal
It is tightened on net 2 and with nut；It is furnished with matched pallet 4 on the top that left-handed nothing indulges muscle twisted steel anchor rod 3, nut and fan can be increased
Contact area and frictional force between shape metal mesh 2, improve the reliability of whole device.
The size that left-handed nothing indulges muscle twisted steel anchor rod 3 is 22 × 1800mm of φ.
The utility model indulges muscle twisted steel anchor rod 3 and matched four pallets using 2, four reinforcing bar 1, metal mesh left-handed nothings
4, eight section resin anchoring agent 5, every left-handed nothing indulges the mating two sections resin anchoring agent 5 of muscle twisted steel anchor rod 3, using bolting with wire mesh shape
Two fan-shaped metal anchors nets and four anchor poles are arranged symmetrically at left and right sides of tunnel by formula, form retaining wall supporting construction.
The present embodiment is with 5000mm × 3000mm（Clear span × clear height）For Bolt net and jet full-mechanized roadway, it is specifically described practical new
The work progress of type：
Before construction, it is necessary to first carry out gib, only in place, no security risk can reliably face for gib
When supporting screen lower carry out retaining wall support construction.
When construction, retaining wall supporting, which is used, indulges the cooperation of muscle twisted steel anchor rod in 4 left-handed nothings of 22 × 1800mm of φ of construction of meeting head on
The curved metal net that two radiuses are 1800mm makees retaining wall supporting, and every metal mesh two left-handed nothings of construction indulge muscle screw-thread steel anchor
Bar, metal mesh frame are processed with the reinforcement welding of φ 22mm；The metal mesh of retaining wall supporting must be close to coal（Rock）Wall, and fasten
Retaining wall net anchor nut.
In work progress, whether retaining wall supporting of meeting head on check at any time loosens, and discovery, which loosens, to reinforce in time, prevents from constructing
Period coal（Rock）Wall flaps side hurts sb.'s feelings.In work progress, coal of meeting head on（Rock）Wall must there are stand-offs.
Comprehensive pick face retaining wall supporting must can be just withdrawn after preparing to open fully-mechanized digging machine；When withdrawing, all personnel must avoid work
Make dough sheet side, the coverage fallen down of supporting facility, tearing open before retaining wall supporting must be with long brake pricker by loose coal of meeting head on（Rock）
" looking for " completely, and must have special messenger to see mountain and guarantee that the way of escape is unimpeded in whole process.
Claims (6)
1. a kind of anti-wall caving retaining wall suspension device in comprehensive pick face, it includes two fan-shaped metal meshes（2）, it is characterised in that：Two fans
Shape metal mesh（2）It is symmetrically fixed at left and right sides of tunnel；The sector metal mesh（2）By reinforcing bar（1）It is welded into.
2. a kind of comprehensive anti-wall caving retaining wall suspension device in pick face according to claim 1, it is characterised in that：Fan-shaped metal mesh
（2）Size of mesh opening be 100mm × 100mm；Fan-shaped metal mesh（2）Frame use φ 22mm reinforcement welding.
3. a kind of comprehensive anti-wall caving retaining wall suspension device in pick face according to claim 1, it is characterised in that：Fan-shaped metal mesh
（2）Muscle twisted steel anchor rod is indulged by left-handed nothing（3）It is fixed on coal wall or palisades（6）On；Each sector metal mesh（2）Pass through two
Left-handed nothing indulges muscle twisted steel anchor rod（3）It is fixed on coal wall or palisades（6）On.
4. a kind of comprehensive anti-wall caving retaining wall suspension device in pick face according to claim 3, it is characterised in that：Every left-handed nothing is vertical
Muscle twisted steel anchor rod（3）Using two section resin anchoring agents（5）Carry out end anchorage.
5. a kind of comprehensive anti-wall caving retaining wall suspension device in pick face according to claim 3, it is characterised in that：Left-handed nothing indulges muscle spiral shell
Line steel anchor rod（3）Top be furnished with matched pallet（4）And nut, matched pallet（4）It is pressed in fan-shaped metal mesh（2）On with nut twist
Tightly.
6. a kind of comprehensive anti-wall caving retaining wall suspension device in pick face according to claim 3, it is characterised in that：Left-handed nothing indulges muscle spiral shell
Line steel anchor rod（3）Size be 22 × 1800mm of φ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721714803.9U CN208122871U (en) | 2017-12-11 | 2017-12-11 | A kind of anti-wall caving retaining wall suspension device in comprehensive pick face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721714803.9U CN208122871U (en) | 2017-12-11 | 2017-12-11 | A kind of anti-wall caving retaining wall suspension device in comprehensive pick face |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208122871U true CN208122871U (en) | 2018-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721714803.9U Active CN208122871U (en) | 2017-12-11 | 2017-12-11 | A kind of anti-wall caving retaining wall suspension device in comprehensive pick face |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107893670A (en) * | 2017-12-11 | 2018-04-10 | 贵州大学 | A kind of anti-wall caving retaining wall supporting construction in comprehensive pick face |
| CN112412506A (en) * | 2020-11-20 | 2021-02-26 | 中国矿业大学 | Anti-scour method for head-on anchor cable support in coal roadway tunneling |
-
2017
- 2017-12-11 CN CN201721714803.9U patent/CN208122871U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107893670A (en) * | 2017-12-11 | 2018-04-10 | 贵州大学 | A kind of anti-wall caving retaining wall supporting construction in comprehensive pick face |
| CN112412506A (en) * | 2020-11-20 | 2021-02-26 | 中国矿业大学 | Anti-scour method for head-on anchor cable support in coal roadway tunneling |
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