CN208619141U - A kind of anchor cable bundle branch protection unit - Google Patents
A kind of anchor cable bundle branch protection unit Download PDFInfo
- Publication number
- CN208619141U CN208619141U CN201821201512.4U CN201821201512U CN208619141U CN 208619141 U CN208619141 U CN 208619141U CN 201821201512 U CN201821201512 U CN 201821201512U CN 208619141 U CN208619141 U CN 208619141U
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- anchor cable
- anchor
- pallet
- cables
- lockset
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Abstract
The utility model provides a kind of anchor cable bundle branch protection unit, it is related to roadway support device field, including pallet, five anchor cables and five respectively correspond the lockset of five anchor cables, five anchor cables are respectively two the first anchor cables, two the second anchor cables and a third anchor cable, first anchor cable, the length of second anchor cable and third anchor cable is respectively a, b and c, c > a > b, four corners of the pallet and middle part have anchor cable hole, the bottom of the third anchor cable is fixed on pallet by lockset, the bottom of described two first anchor cables is fixed on the same side on pallet by lockset, the bottom of described two second anchor cables is fixed on the other side on pallet by lockset, the utility model is applied in tunnel, it is greatly improved anchoring effect.
Description
Technical field
The utility model relates to roadway support device fields, and in particular to a kind of anchor cable bundle branch protection unit.
Background technique
Major part mine with having entered deep paneling at present.Traditional coal roadway support is got under high stress complex geological condition
Not to be able to satisfy the needs of site operation.Coal roadway tunneling gob side entry and large-span tunnel roof pressure be big, roadway deformation
The problems such as amount is big, supporting is difficult shows especially prominent.
Utility model content
The technical problem to be solved by the utility model is to coal roadway tunneling gob side entry and large-span tunnel top plate pressures
Power is big, roadway deformation amount is big, supporting is difficult.
The utility model is to solve above-mentioned technical problem by the following technical programs.
A kind of anchor cable bundle branch protection unit respectively corresponds the lockset of five anchor cables including pallet, five anchor cables and five, described
Five anchor cables are respectively two the first anchor cables, two the second anchor cables and a third anchor cable, the first anchor cable, the second anchor cable and third
The length of anchor cable is respectively a, b and c, c > a > b, and four corners of the pallet and middle part have an anchor cable hole, and described
The bottom of three anchor cables is fixed on pallet by lockset, and the bottom of described two first anchor cables is fixed on pallet by lockset
The same side, the bottom of described two second anchor cables are fixed on the other side on pallet by lockset.
It further, further include five anchor cable cushion blocks, for the anchor cable cushion block between lockset and tray bottom surface, lockset is logical
Cross the bottom that anchor cable cushion block is pressed on pallet.
Further, the tray surface is also provided with an anchor cable hole, further includes anti-fall anchor cable, the bottom of the anti-fall anchor cable
Portion is equipped with block, and the top of anti-fall anchor cable is stretched out upwards out of anchor cable hole on pallet.
Further, the diameter of first anchor cable, the second anchor cable and third anchor cable is 22mm, and length is respectively
8600mm, 7400mm and 9800mm；
Pallet length, width and height are respectively 800mm, 900mm and 16mm；
Anchor cable cushion block length, width and height are respectively 150mm, 150mm and 16mm；
Anchor cable hole aperture is 25mm；
Distance of the anchor cable hole center of four corners on the pallet respectively to two sides is 100mm.
Utility model has the advantages that
The anchor cable of 5 different lengths cooperates big pallet to use, and the anchor cable of one side different length is taken root in different rock stratum
Layer position, increases anchorage length significantly；On the other hand the anchor cable that 5 root long degree do not wait acts on one big pallet and forms powerful beam
Binding force improves the pretightning force of anchor cable similar to the effect of steel strand cable cable-stayed bridge stub, substantially increases supporting effect, specifically
, the utility model is compared with traditional anchor cable is reinforced first is that increasing the anchorage length of anchor cable；The anchor cable of different length take root in
Different rock stratum layer positions, ensure that the anchoring effect of anchor cable；The anchor cable that 5 root long degree do not wait acts on one big pallet and forms by force
Big binding force plays consolidation effect to large-span tunnel, similar to the effect of steel strand cable cable-stayed bridge stub.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment 1；
Fig. 2 is the structural schematic diagram of the utility model embodiment 2.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
Embodiment 1
In conjunction with attached drawing 1, a kind of anchor cable bundle branch protection unit of the utility model, including 1, five anchor cable of pallet and five it is right respectively
The lockset 3 of five anchor cables is answered, five anchor cables are respectively two the first anchor cables, 21, two the second anchor cables 22 and a third anchor
Rope 23, the length of the first anchor cable 21, the second anchor cable 22 and third anchor cable 23 are respectively a, b and c, c > a > b, and the four of the pallet 1
A corner and middle part have anchor cable hole, and the bottom of the third anchor cable 23 is fixed on pallet 1 by lockset 3, described
The bottom of two the first anchor cables 21 is fixed on the same side on pallet 1 by lockset 3, and the bottom of described two second anchor cables 22 is logical
Cross the other side that lockset 3 is fixed on pallet 1.
It further, further include five anchor cable cushion blocks 4, the anchor cable cushion block 4 is located between 1 bottom surface of lockset 3 and pallet, lock
Tool 3 is pressed on the bottom of pallet 1 by anchor cable cushion block 4.
Embodiment 2
Further, 1 surface of pallet is also provided with an anchor cable hole, further includes anti-fall anchor cable 5, the anti-fall anchor cable 5
Bottom be equipped with block 6, the top of anti-fall anchor cable 5 stretches out upwards out of anchor cable hole on pallet 1, and anti-fall anchor pole 5 is without pre-
It tightly only serves and hangs big pallet 1 when big pallet 1 is fallen it is made not fall the effect for pounding people.
Further, the diameter of first anchor cable 21, the second anchor cable 22 and third anchor cable 23 is 22mm, and length is respectively
8600mm, 7400mm and 9800mm；
1 length, width and height of pallet are respectively 800mm, 900mm and 16mm；
4 length, width and height of anchor cable cushion block are respectively 150mm, 150mm and 16mm；
Anchor cable hole aperture is 25mm；
Distance of the anchor cable hole center of four corners on the pallet respectively to two sides is 100mm.
Embodiment 3
By taking certain ground crossheading portable blower chamber is using anchor cable Shu Jiagu as an example, from supporting security consideration, theory requires when checking
Check the maximum supporting intensity in chamber section tunnel.When then checking overall with, possible height rock weight (the every meter of lane of top plate
Road) are as follows:
W=B × h × γ=7.5/8.5 × 4.3 × 25=806.25KN/913.75KN；
In formula, B is span length, B=7.5/8.5m；H is the maximum possible height of top plate, is pushed up in conjunction with 6 coal coal seams
Plate is practical, electromechanical chamber section Roof rock feature: 0-3.8m Sandy Silt；3.8-4.3m charcoal mudrock；4.3-7.0m Sandy Silt；
7.0-7.1m coal；7.1-9.6m Sandy Silt；Maximum possible height takes 4.3m；γ is rock bulk density, γ=25KN/m3.
To ensure the complete reliable of supporting, theory puts aside the auxiliary shoring power of roofbolt, the lane Ze Mei meter when checking
The supporting power of road anchor cable are as follows:
η/s=9 × 200 P=Np × 0.8/1=1440KN > 806.25/913.75KN；
In formula, N is the anchor cable quantity of every row's installation, N=7+5 × 2/5=9；P is the maximum anchor of ￠ 22mm steel strand anchor cable
Gu power, p=200KN；η is anchor cable Fracture Force usage factor, η=0.8；S is array pitch, s=1.0m.
Driving initial stage does not consider the suspension force of anchor pole, carries outside whole top plates and individually undertaken by anchor cable, anchor cable suspends supporting in midair
Safety coefficient:
N=P/W=1440/806.25=1.78,1440/913.75=1.57.
Checked above, this over long distances, large-section underground top shield arrange 9 anchor cables, 10 anchor poles cooperation M5 steel bands,
Ω anchor cable beam, 10# iron wire metal mesh and anchor cable beam combined supporting, are able to satisfy supporting requirement.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
Above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；Although referring to aforementioned reality
Example is applied the utility model is described in detail, those skilled in the art should understand that: it still can be to preceding
Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features；And these
It modifies or replaces, the spirit and model of various embodiments of the utility model technical solution that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (4)
1. a kind of anchor cable bundle branch protection unit, which is characterized in that respectively correspond five anchor cables including pallet, five anchor cables and five
Lockset, five anchor cables are respectively two the first anchor cables, two the second anchor cables and a third anchor cable, the first anchor cable, second
The length of anchor cable and third anchor cable is respectively a, b and c, and c > a > b, four corners of the pallet and middle part have anchor cable
The bottom in hole, the third anchor cable is fixed on pallet by lockset, and the bottom of described two first anchor cables is fixed by lockset
The same side on pallet, the bottom of described two second anchor cables are fixed on the other side on pallet by lockset.
2. a kind of anchor cable bundle branch protection unit according to claim 1, which is characterized in that further include five anchor cable cushion blocks, institute
Anchor cable cushion block is stated between lockset and tray bottom surface, lockset is pressed on the bottom of pallet by anchor cable cushion block.
3. a kind of anchor cable bundle branch protection unit according to claim 1, which is characterized in that the tray surface is also provided with one
Anchor cable hole further includes anti-fall anchor cable, and the bottom of the anti-fall anchor cable is equipped with block, and the top of anti-fall anchor cable is from the anchor cable on pallet
It is stretched out upwards in hole.
4. a kind of anchor cable bundle branch protection unit according to claim 1, which is characterized in that first anchor cable, the first anchor cable,
The diameter of second anchor cable and third anchor cable is 22mm, and length is respectively 8600mm, 7400mm and 9800mm；
Pallet length, width and height are respectively 800mm, 900mm and 16mm；
Anchor cable cushion block length, width and height are respectively 150mm, 150mm and 16mm；
Anchor cable hole aperture is 25mm；
Distance of the anchor cable hole center of four corners on the pallet respectively to two sides is 100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821201512.4U CN208619141U (en) | 2018-07-27 | 2018-07-27 | A kind of anchor cable bundle branch protection unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821201512.4U CN208619141U (en) | 2018-07-27 | 2018-07-27 | A kind of anchor cable bundle branch protection unit |
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| Publication Number | Publication Date |
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| CN208619141U true CN208619141U (en) | 2019-03-19 |
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| CN201821201512.4U Active CN208619141U (en) | 2018-07-27 | 2018-07-27 | A kind of anchor cable bundle branch protection unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825283A (en) * | 2018-07-27 | 2018-11-16 | 淮南矿业(集团)有限责任公司 | A kind of anchor cable bundle branch protection unit and laneway support method |
| CN110821537A (en) * | 2019-11-29 | 2020-02-21 | 淮矿西部煤矿投资管理有限公司 | Support method for fully-mechanized coal mining face pre-digging single-withdrawing channel |
-
2018
- 2018-07-27 CN CN201821201512.4U patent/CN208619141U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825283A (en) * | 2018-07-27 | 2018-11-16 | 淮南矿业(集团)有限责任公司 | A kind of anchor cable bundle branch protection unit and laneway support method |
| CN110821537A (en) * | 2019-11-29 | 2020-02-21 | 淮矿西部煤矿投资管理有限公司 | Support method for fully-mechanized coal mining face pre-digging single-withdrawing channel |
| CN110821537B (en) * | 2019-11-29 | 2021-02-09 | 淮矿西部煤矿投资管理有限公司 | Support method for fully-mechanized coal mining face pre-digging single-withdrawing channel |
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