CN203257439U - Anchor rope total-length anchoring device used for coal mine soft-rock roadway - Google Patents
Anchor rope total-length anchoring device used for coal mine soft-rock roadway Download PDFInfo
- Publication number
- CN203257439U CN203257439U CN 201320166399 CN201320166399U CN203257439U CN 203257439 U CN203257439 U CN 203257439U CN 201320166399 CN201320166399 CN 201320166399 CN 201320166399 U CN201320166399 U CN 201320166399U CN 203257439 U CN203257439 U CN 203257439U
- Authority
- CN
- China
- Prior art keywords
- grouting
- grouting pipe
- anchor cable
- anchor rope
- anchoring device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000011435 rock Substances 0.000 title claims abstract description 19
- 239000003245 coal Substances 0.000 title claims abstract description 10
- 238000004873 anchoring Methods 0.000 title claims abstract 7
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000005553 drilling Methods 0.000 claims 1
- 230000002787 reinforcement Effects 0.000 abstract description 6
- 238000007569 slipcasting Methods 0.000 description 3
- 230000008093 supporting effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
An anchor rope total-length anchoring device used for a coal mine soft-rock roadway comprises a Z-shaped grouting pipe, an anchor rope and a reinforcement mesh, wherein the middle of the grouting pipe is embedded in the surface of a rock layer, one end of the grouting pipe is arranged in a grouting drilled hole, the other end of the grouting pipe is exposed, and the grouting pipe has the hollow equal section; the anchor rope stretches into the grouting drilled hole, the reinforcement mesh is paved around the drilled hole, and the exposed end of the anchor rope is sequentially provided with a tray and a lock which are fixed on the grouting drilled hole. The Z-shaped grouting pipe is used for grouting to achieve the overall-length anchoring of the anchor rope, and the anchor rope total-length anchoring device has the advantages of being simple in structure and convenient to mount.
Description
Technical field
The utility model relates to a kind of anchor cable full length fastening device for Soft Rock Drifts At Coal, is particularly useful near the relatively poor tunnel of country rock, large-section underground, crossover point, the fault zone and the tunnel that affected by dynamic pressure.
Background technology
For near the relatively poor tunnel of country rock, large-section underground, crossover point, the fault zone and the tunnel that affected by dynamic pressure, adopt the full length fastening cable supplement support can significantly improve supporting effect on the bolt support basis.
Existing hollow grouting cable anchor can be realized the anchor cable full length fastening, and cable body is hollow structure, carries slip casting core pipe, cause anchor cable to break load less, reduced by 31% than the anchor cable of same diameter, broken easily in using at the scene.Also have a shortcoming to be, anchor cable adopts the screw-threaded coupling mode, and the installation of anchor cable, firmly beforehand means are identical with resin anchor, cause its pretightning force less, a little less than the active support effect, can not significantly improve the supporting capacity of country rock.
Summary of the invention
The purpose of this utility model is the weak point that overcomes prior art, and a kind of simple in structure, effective anchor cable full length fastening device that is used for Soft Rock Drifts At Coal is provided.
For achieving the above object, the utility model is used for the anchor cable full length fastening device of Soft Rock Drifts At Coal, comprise that the middle part is inlaid in that rock layer surface, an end are located in the inlet well, the other end exposes, has the mutually prismatic Z-shaped Grouting Pipe of hollow, also comprise and stretch into the anchor cable in the inlet well and be laid on boring steel mesh reinforcement on every side, be provided with successively the pallet and the lockset that are fixed on the inlet well aperture on the exposed junction of anchor cable.
Described Z-shaped Grouting Pipe exposes an end surfaces and is provided with the external screw thread that links to each other with Grouting Pipe; Be attached with the spray-up of fixing Z-shaped Grouting Pipe and anchor cable around the described inlet well aperture.
Beneficial effect: the utility model can guarantee that the intensity of anchor cable does not reduce, and carries out on this basis full length fastening, can improve the supporting capacity of country rock; And anchor cable adopts tension process to apply pretightning force, can reach it and break 40% ~ 70% of load.Adopt the anchor cable of Z-shaped Grouting Pipe slip casting to have by force just support, the anxious characteristic that increases resistance, high-bearing, a near difficult problem of can solve better the region of high stress, fault zone is and decay and lose rapidly owing to the loosening anchored force broken and that large deformation causes of roadway surrounding rock in " three is soft " stratum.Carry out the full length fastening that slip casting has realized anchor cable by Z-shaped Grouting Pipe; Compare with existing hollow grouting cable anchor, cost nearly 80%, it is simple in structure, and is easy for installation, effective, has widely practicality.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is A-A sectional drawing among Fig. 1.
Among the figure: 1-anchor cable, 2-spray-up, 3-lockset, 4-pallet, 5-steel mesh reinforcement, 6-Z shape Grouting Pipe, 7-inlet well, the boring of 8-anchor cable.
The specific embodiment
Below in conjunction with accompanying drawing an embodiment of the present utility model is further described:
As shown in Figure 1, the utility model is used for the anchor cable full length fastening device of Soft Rock Drifts At Coal, mainly consisted of by anchor cable 1, pallet 4, lockset 3, steel mesh reinforcement 5, Z-shaped Grouting Pipe 6, described Z-shaped Grouting Pipe 6 has hollow phase uniform section, its middle part is inlaid in that rock layer surface, an end are located in the inlet well 7, the other end exposes, and Z-shaped Grouting Pipe 6 exposes an end surfaces and is provided with the external screw thread that links to each other with Grouting Pipe.Anchor cable 1 stretches in the inlet well 7, and gos deep in the anchor cable boring 8, and steel mesh reinforcement 5 is laid on around the boring, sets gradually the pallet 4 and the lockset 3 that are fixed on inlet well 7 apertures on the exposed junction of anchor cable 1.Be attached with the spray-up 2 of fixing Z-shaped Grouting Pipe 6 and anchor cable 1 around described inlet well 7 apertures.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320166399 CN203257439U (en) | 2013-04-07 | 2013-04-07 | Anchor rope total-length anchoring device used for coal mine soft-rock roadway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320166399 CN203257439U (en) | 2013-04-07 | 2013-04-07 | Anchor rope total-length anchoring device used for coal mine soft-rock roadway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203257439U true CN203257439U (en) | 2013-10-30 |
Family
ID=49470016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320166399 Expired - Fee Related CN203257439U (en) | 2013-04-07 | 2013-04-07 | Anchor rope total-length anchoring device used for coal mine soft-rock roadway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203257439U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615258A (en) * | 2013-12-06 | 2014-03-05 | 中国矿业大学(北京) | The support structure and support method of the middle rock pillar at the roadway intersection |
| CN113638758A (en) * | 2021-08-16 | 2021-11-12 | 湖南科技大学 | Grouting anchor rod and anchor rope combined type chamber surrounding rock supporting construction |
-
2013
- 2013-04-07 CN CN 201320166399 patent/CN203257439U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615258A (en) * | 2013-12-06 | 2014-03-05 | 中国矿业大学(北京) | The support structure and support method of the middle rock pillar at the roadway intersection |
| CN103615258B (en) * | 2013-12-06 | 2016-03-02 | 中国矿业大学(北京) | Supporting structure and supporting method for middle rock pillar of roadway intersection point |
| CN113638758A (en) * | 2021-08-16 | 2021-11-12 | 湖南科技大学 | Grouting anchor rod and anchor rope combined type chamber surrounding rock supporting construction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131030 Termination date: 20140407 |