CN205154203U - Full anchor rope supporting construction of prevention and cure roof sliding rupture - Google Patents
Full anchor rope supporting construction of prevention and cure roof sliding rupture Download PDFInfo
- Publication number
- CN205154203U CN205154203U CN201520926599.1U CN201520926599U CN205154203U CN 205154203 U CN205154203 U CN 205154203U CN 201520926599 U CN201520926599 U CN 201520926599U CN 205154203 U CN205154203 U CN 205154203U
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- roof
- backing plate
- top board
- anchor
- anchor rope
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- 230000008093 supporting effect Effects 0.000 title abstract description 21
- 238000010276 construction Methods 0.000 title abstract description 9
- 230000002265 prevention Effects 0.000 title abstract 2
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 239000011435 rock Substances 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 8
- 239000003245 coal Substances 0.000 abstract description 6
- 230000006378 damage Effects 0.000 description 5
- 238000005452 bending Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000019994 cava Nutrition 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
The utility model relates to a full anchor rope supporting construction of prevention and cure roof sliding rupture, including the roof, be provided with many short anchor ropes on the roof, tray and tool to lock are installed to short anchor rope outer end, roof intermediate position and fillet position are equipped with long anchor rope, and backing plate, spring washers, tool to lock are installed to the long anchor rope outer end in fillet position, and the backing plate comprises trapezoidal steel and the flexible buffer layer of surrounding the outside, the backing plate dorsad on the outer inclined plane of rock -wall one side the hookup have spring washers, be equipped with the round hole that the confession anchor rope passed on backing plate and the spring washers, two help to be provided with the stock, and tray and nut are installed to the stock outer end. This supporting construction maintains the roof according to roof sliding rupture characteristics, the method that adopts the length anchor rope to combine, has improved the ability that roof coal petrography anti -sliding destroyed, avoids phenomenons such as fillet country rock emergence dislocation, embedding, step sink, can guarantee that supporting construction is effective in the continuation of roof sliding motion in -process, and the construction is simple, convenient, and is effectual, has extensive practicality.
Description
Technical field
The utility model relates to a kind of full cable bolting structure of preventing and treating top board sliding rupture, belongs to the supporting field in mine.
Background technology
In colliery tunnel support field, due to anchor pole, anchor cable have material weight light, the advantages such as simple, easy construction, support speed be fast are installed, anchor pole (rope) supporting has become the support form that coal mine roadway is commonly used the most, and successfully solves an a large amount of roadway support difficult problem.The action principle of this supporting and protection structure is by anchor pole rope high tensile performance, stablizes on rock stratum, prevent top board surface rock depression amount excessive by the suspention of superficial part absciss layer coal and rock to deep.But a large amount of engineering practice shows, by strong horizontal tectonic stress and mining operation disturbing influence, not only along vertical generation sunken caves, also can there is sliding motion in back in the horizontal direction, and horizontal direction sliding motion is sometimes abnormal strong.In top board generation sliding motion process, due to the otherness from top board surface each layer of position rock stratum horizontal movement to deep, inharmonic sliding deformation is inevitably there is between adjacent strata, and cause rock mass expansion, destruction formation shear crack and slippage block, especially fillet position immediate roof and coal very easily misplace between helping, embed, step convergence phenomenon, finally cause top board superficial part coal petrography zone of fracture on a large scale.In addition, roof strata sliding motion process, the supporting Problem of Failure such as rock interlaminar shear stress increases rapidly, and the anchor pole that shear strength is lower and anchor cable will be twisted and warped, cut off, and then cause deformation failure to aggravate further.
Top board fillet position complement inclination anchor pole (rope) is the effective measures of controlroof sliding motion.But, because setting angle is comparatively large, anchor pole (rope) stretching process difficulty; And tilt through pallet and country rock because of the member structure of anchor pole (rope), in pretightning force applying process, be bending structure between itself and country rock, pallet, very easily cause stress to concentrate and to cause rod member disrumpent feelings, be also unfavorable for that anchor pole (rope) prestressing force spreads.Therefore, according to roof strata sliding motion feature, need badly and find a kind of reasonably supporting and protection structure, can effective controlroof especially fillet position sliding rupture, the continuous and effective of supporting and protection structure in motion process can be ensured again.
Utility model content
Twisting and warping for overcoming the dislocation, embedding, step convergence and the anchor pole rope that occur in top board sliding motion process, the breakoff phenomenon such as to cut off, the utility model proposes a kind of full cable bolting structure of preventing and treating top board sliding rupture, this supporting and protection structure significantly can improve roof strata resistant slide damage capability, and the continuation that supporting and protection structure controls roof strata and validity can be ensured, construction is simple, convenient, supporting effect is good, has practicality widely.
For achieving the above object, the utility model by the following technical solutions: a kind of full cable bolting structure of preventing and treating top board sliding rupture, comprise top board, top board is provided with many short anchor cables, short anchor cable outer end is provided with pallet and lockset; Top board centre position and fillet position are provided with long anchor cable, and long anchor cable outer end, fillet position is provided with backing plate, elastic washer and lockset; Two help to be provided with twisted steel anchor rod, and twisted steel anchor rod outer end is provided with pallet and nut.
Further, as a kind of concrete form of structure, short anchor cable described in the utility model is length 4000 ~ 6000mm, the common anchor cable of 1 × 7 structure of diameter 15 ~ 18mm, long anchor cable is length 6000 ~ 9000mm, the large diameter anchor of 1 × 19 structure of diameter 20 ~ 22mm.
Further, as a kind of concrete form of structure, backing plate described in the utility model is formed by trapezoidal steel with around the supple buffer layer in outside.
Further, as a kind of concrete form of structure, the outer inclined-plane of backing plate described in the utility model crag side is dorsad connected with elastic washer; Backing plate and elastic washer are provided with the circular hole passed for anchor cable, and circular hole is perpendicular to outer inclined-plane.
The beneficial effects of the utility model are: the supporting and protection structure that (1) adopts long and short anchor cable to cooperatively interact carries out supporting to top board, by applying high pre-stress, improve force-bearing of surrounding rock mass state, greatly improve roof strata rigidity and anti-shearing damage capability; (2) employing major diameter long anchor cable fit strip, elastic washer are reinforced top board fillet position, anchor cable high anchored force greatly can improve fillet coal and rock stability, and the shear stress that can weaken in the horizontal direction in roof strata, avoid the breakoff phenomenons such as country rock dislocation, embedding, step convergence; (3) anchor cable self shear strength will, much larger than anchor pole, adopt full cable bolting structure greatly to improve the anti-shearing damage capability of support system, the breakoff phenomenon such as anchor pole can be avoided to twist and warp, cut short; (4) backing structure set up of fillet anchor cable, can to ensure between anchor cable and supporting plate, country rock, without bending phenomenon, avoid anchor cable stressed concentrated and disrumpent feelings, and anchor cable to be perpendicular to inclined-plane outside supporting plate, and stretch-draw is convenient and be beneficial to prestressing force diffusion.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is for implementing floor map of the present utility model.
Fig. 2 is fillet long anchor cable scheme of installation.
1. tunnels in figure, 2. short anchor cable, 3. pallet, 4. anchor cable lock, 5. long anchor cable, 6. backing plate, 7. elastic washer, 8. twisted steel anchor rod, 9. anchor rod pallet board, 10. nut, 11. trapezoidal steel, 12. supple buffer layer, the outer inclined-plane of 13. backing plates, 14. circular holes.
Detailed description of the invention
Below in conjunction with accompanying drawing, an embodiment of the present utility model is further described:
Prevent and treat a full cable bolting structure for top board sliding rupture, comprise step:
After A, tunnel 1 excavate, back construct short anchor cable boring, short anchor cable hole should be able to extend to 0.5 ~ 1m on tight roof, short anchor cable 2 is installed, the free end of short anchor cable 2 successively through pallet 3 and lockset 4, and applies high pre-stress by tensioning equipment to anchor cable, completes preliminary supporting.Short anchor cable 2 is length 4000 ~ 6000mm, the common anchor cable of 1 × 7 structure of diameter 15 ~ 18mm, and design parameter comprehensively should be determined in conjunction with roof strata feature and execution conditions.
B, in the boring of back centre position construction long anchor cable, long anchor cable hole should be able to extend to 2 ~ 4m on tight roof, installs long anchor cable 5, and long anchor cable 5 free end successively through pallet 3 and lockset 4, and applies high pre-stress by tensioning equipment to anchor cable; Meanwhile, adopt same step to install anchor cable 5 at top board fillet position, the free end of long anchor cable 5 successively through backing plate 6 (being made up of supple buffer layer 12 and trapezoidal steel 11), elastic washer 7 and lockset 4, and applies high pre-stress by tensioning equipment.As shown in Figure 2, wherein, in backing plate, offer position and should determine according to anchor cable setting angle, should ensure that anchor cable keeps vertical with outer inclined-plane 13, so that tensioning equipment applies high pretightening force by circular hole 14 for fillet long anchor cable installation process; Supple buffer layer is made of plastics, and the stress can eliminated between backing plate and country rock is concentrated; Elastic washer is positioned between lockset and backing plate, can slow down friction, greatly reduce loss of prestress.Long anchor cable is length 6000 ~ 9000mm, the large diameter anchor of 1 × 19 structure of diameter 20 ~ 22mm, and design parameter comprehensively should be determined in conjunction with roof strata feature and execution conditions.
C, after the short cable bolting of top board completes, help to adopt that twisted steel anchor rod 8 coordinates pallet 9, nut 10 reinforces to two.
A kind of full cable bolting square structure preventing and treating top board sliding rupture described in the utility model, this supporting and protection structure significantly can improve roof strata resistant slide damage capability, and the continuation that supporting and protection structure controls roof strata and validity can be ensured, construction is simple, convenient, supporting effect is good, has practicality widely.
It should be noted that; above-mentioned explanation is not to restriction of the present utility model; the utility model is also not limited in above-mentioned example; the change that those of ordinary skill in the art makes in essential scope of the present utility model, remodeling, interpolation or replacement, all should be covered by within protection domain of the present utility model.
Claims (4)
1. prevent and treat the full cable bolting structure of top board sliding rupture for one kind, comprise top board, it is characterized in that: described top board is provided with many short anchor cables (2), short anchor cable (2) outer end is provided with pallet (3) and lockset (4); Top board centre position and fillet position are provided with long anchor cable (5), and long anchor cable (5) outer end, fillet position is provided with backing plate (6), elastic washer (7), lockset (4); Two help to be provided with twisted steel anchor rod (8), and twisted steel anchor rod (8) outer end is provided with pallet (9) and nut (10).
2. a kind of full cable bolting structure of preventing and treating top board sliding rupture according to claim 1, it is characterized in that: described short anchor cable (2) is length 4000 ~ 6000mm, the common anchor cable of 1 × 7 structure of diameter 15 ~ 18mm, long anchor cable (5) is the large diameter anchor of 1 × 19 structure of length 6000 ~ 9000mm, diameter 20 ~ 22mm.
3. a kind of full cable bolting structure of preventing and treating top board sliding rupture according to claim 1, is characterized in that: described backing plate (6) is formed by trapezoidal steel (11) with around the supple buffer layer (12) in outside.
4. a kind of full cable bolting structure of preventing and treating top board sliding rupture according to claim 1 or 3, is characterized in that: the outer inclined-plane (13) of described backing plate (6) crag side is dorsad connected with elastic washer (7); Backing plate (6) and elastic washer (7) are provided with the circular hole (14) passed for anchor cable, and circular hole (14) is perpendicular to outer inclined-plane (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520926599.1U CN205154203U (en) | 2015-11-19 | 2015-11-19 | Full anchor rope supporting construction of prevention and cure roof sliding rupture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520926599.1U CN205154203U (en) | 2015-11-19 | 2015-11-19 | Full anchor rope supporting construction of prevention and cure roof sliding rupture |
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| Publication Number | Publication Date |
|---|---|
| CN205154203U true CN205154203U (en) | 2016-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520926599.1U Expired - Fee Related CN205154203U (en) | 2015-11-19 | 2015-11-19 | Full anchor rope supporting construction of prevention and cure roof sliding rupture |
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| CN (1) | CN205154203U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106121684A (en) * | 2016-08-17 | 2016-11-16 | 国投新集能源股份有限公司 | A kind of jacking coal and rock suspension device and construction method thereof |
| CN107461215A (en) * | 2017-08-29 | 2017-12-12 | 河南理工大学 | A kind of back timber formula anchor cable constant-resistance structure and its installation method |
| CN107939426A (en) * | 2018-01-15 | 2018-04-20 | 河南理工大学 | A kind of three hole fillet pallets and application method for the anchoring of trapezoidal roadway bolt |
| CN108547647A (en) * | 2018-06-22 | 2018-09-18 | 四川大学 | A kind of underground chamber high strength support structure |
| CN108625889A (en) * | 2018-08-08 | 2018-10-09 | 霍州煤电集团有限责任公司 | A kind of combined anchor anchor cable support apparatus |
| CN110851953A (en) * | 2019-09-30 | 2020-02-28 | 中铁十二局集团有限公司 | Method, system and medium for calculating anchoring force of long anchor cable penetrating through non-filled karst cave |
| CN114961774A (en) * | 2022-04-08 | 2022-08-30 | 河南理工大学 | High-ground-pressure roadway special-shaped section multidirectional coupling control structure and supporting method |
-
2015
- 2015-11-19 CN CN201520926599.1U patent/CN205154203U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106121684A (en) * | 2016-08-17 | 2016-11-16 | 国投新集能源股份有限公司 | A kind of jacking coal and rock suspension device and construction method thereof |
| CN106121684B (en) * | 2016-08-17 | 2018-11-30 | 国投新集能源股份有限公司 | A kind of construction method of jacking coal and rock suspension device |
| CN107461215A (en) * | 2017-08-29 | 2017-12-12 | 河南理工大学 | A kind of back timber formula anchor cable constant-resistance structure and its installation method |
| CN107939426A (en) * | 2018-01-15 | 2018-04-20 | 河南理工大学 | A kind of three hole fillet pallets and application method for the anchoring of trapezoidal roadway bolt |
| CN108547647A (en) * | 2018-06-22 | 2018-09-18 | 四川大学 | A kind of underground chamber high strength support structure |
| CN108547647B (en) * | 2018-06-22 | 2024-05-10 | 四川大学 | High-strength supporting structure for underground cavern |
| CN108625889A (en) * | 2018-08-08 | 2018-10-09 | 霍州煤电集团有限责任公司 | A kind of combined anchor anchor cable support apparatus |
| CN110851953A (en) * | 2019-09-30 | 2020-02-28 | 中铁十二局集团有限公司 | Method, system and medium for calculating anchoring force of long anchor cable penetrating through non-filled karst cave |
| CN110851953B (en) * | 2019-09-30 | 2023-05-26 | 中铁十二局集团有限公司 | Calculation method, system and medium for anchoring force of long anchor cable penetrating through filling-free karst cave |
| CN114961774A (en) * | 2022-04-08 | 2022-08-30 | 河南理工大学 | High-ground-pressure roadway special-shaped section multidirectional coupling control structure and supporting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 Termination date: 20161119 |
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| CF01 | Termination of patent right due to non-payment of annual fee |