CN201121521Y - Opposite pull anchor wire - Google Patents
Opposite pull anchor wire Download PDFInfo
- Publication number
- CN201121521Y CN201121521Y CNU2007201311145U CN200720131114U CN201121521Y CN 201121521 Y CN201121521 Y CN 201121521Y CN U2007201311145 U CNU2007201311145 U CN U2007201311145U CN 200720131114 U CN200720131114 U CN 200720131114U CN 201121521 Y CN201121521 Y CN 201121521Y
- Authority
- CN
- China
- Prior art keywords
- coal column
- anchor rope
- entry
- coal
- locks
- 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
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Abstract
The utility model relates to a counter pull anchor rope comprising an anchor rope, support trays and locks. The two ends of the anchor rope are provided with the support trays and the locks. The inner sides of the support trays and the locks are provided with steel bands or steel channel beams. During the use, compared with an ordinary suspension roof support, first, the counter pull anchor rope is longer to penetrate a coal column and to exert high pretightening force at the two sides of the coal column so as to limit the deformation of the coal column and maintain the stability of the coal column; second, steel bands or steel channel beams can be paved under the counter pull anchor rope, thereby enlarging the action range of the rock surfaces surrounding the coal column. Particularly, the result is remarkable when reinforcement bolting is performed for a coal column entry, and the great technical problem concerning the maintenance of the stable bearing of coal columns in entries through dual-entry or multi-entry drivage is solved, thereby providing a reliable technical assurance to the safety of multi-entry discharge of gas from high-gas mines.
Description
Technical field
The utility model relates to a kind of to drawing anchor cable, be particularly useful for two of down-holes or multi-mine roadway closely exploit in the supporting of coal column between the roadway.
Background technology
At present, flourish along with coal in China industry, work plane output constantly increases, gas emission increases thereupon, requirement such as take over for satisfy ventilating, producing, need the special multi-mine roadway such as gas exhaust lane of digging, many mining areas to take two lanes or many lanes driving to meet the demands.Article two, or multi-mine roadway arrange that closely the stable maintenance issues of coal column becomes increasingly conspicuous between the lane.The excavation in pick tunnel at first makes the tunnel-surrounding country rock be subjected to the unloading effect and produces certain elastic-plastic deformation earlier.When a back roadway excavation, coal column experience excavation disturbance influence for the second time between the lane, with primary stress stack, coal column will produce bigger distortion.During working face extraction, coal column will stand disturbing influence for the third time between the lane, and the stability of coal column will sharply weaken this moment.If coal column can not get effective support, coal column dilatation generation large deformation gradually collapses until destruction.Therefore, must add strong supporting to coal column between the lane.Though conventional bolt support has certain effect, can not give the enough control effects of coal column on the whole, can't guarantee the stability that coal column carries under stress disturbance repeatedly.
The utility model content
The purpose of this utility model provides a kind of simple in structure, and supporting effect is good, guarantee that coal column is difficult for collapsing when large deformation takes place to drawing anchor cable.
Of the present utility modelly comprise anchor cable to drawing anchor cable, pallet and lockset are equipped with pallet and lockset at the two ends of anchor cable, and pallet and lockset inboard are provided with steel band or steel channel beam.
The utility model beneficial effect compared with prior art is: adopt after drawing anchor cable, under the effect of anchor cable pretightning force, coal column obtains invigoration effect to a certain degree, coal column is compressed between the lane, make loose distortion be effectively controlled, can further strengthen simultaneously the stability of coal column and tunnel carrying between the lane, make the tunnel of coal column both sides all keep certain rock-steady structure, prevent that effectively the tunnel from emitting integral body to collapse from the coal column position because of the coal column distortion collapses.To drawing anchor cable, can use with combining anchor as strengthening supporting.When in the coal column anchor pole being arranged, add on this basis drawing anchor cable, can effectively improve country rock intensity and globality, further control coal column country rock dilatation distortion.In use, compare with the common bolt supporting drawing anchor cable, the one, its length is bigger, can penetrate coal column, applies high pretightning force in the coal column both sides, and restriction coal column development of deformation keeps the stable of coal column; The 2nd, can lay steel band or steel channel beam etc. under the anchor cable to drawing, strengthen sphere of action to coal column country rock surface.Especially coal column between the lane is added strong supporting, effect is very obvious, has solved the great technical barrier that the coal column bearing stability is safeguarded between the driving lane of on-the-spot pair of lane or many lanes, for the safety in production of many lanes of highly gassy mine pump drainage gas provides the robust techniques assurance.
Description of drawings
Fig. 1 is of the present utility model to drawing the anchor cable structure schematic diagram.
Fig. 2 is of the present utility model to drawing the anchor cable example schematic
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described:
Shown in Figure 1, of the present utility modelly pallet 2 and lockset 3 are set at the two ends of anchor cable 1 to drawing anchor cable to constitute by anchor cable 1, pallet 2, lockset 3 and steel band or steel channel beam 4, steel band or steel channel beam 4 are equipped with near the end face of coal column wall in pallet 2 and lockset 3 inboards.Shown in Figure 2, arrange many anchor cables 1 according to the length of coal column 5 and thickness, with anchor cable rig or other facility laterally or keep at a certain distance away on vertical and hole, and penetrate coal column 5 at coal column 5; Steel band or steel channel beam 4 laterally or vertically are placed in the boring, on steel band or the steel channel beam 4 pre-drilled eyelet are arranged, and anchor cable 1 are passed in the eyelet of annexes such as steel band or steel channel beam 4; Tray 2, lockset 3 respectively on the anchor cable that exposes in the coal column both sides are stretched to the pretightning force of needs respectively in both sides with the stretch-draw instrument.
Claims (1)
1. one kind to drawing anchor cable, comprises anchor cable (1), and pallet (2) and lockset (3) is characterized in that: the two ends of described anchor cable (1) are equipped with pallet (2) and lockset (3), and pallet (2) and lockset (3) inboard are provided with steel band or steel channel beam (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201311145U CN201121521Y (en) | 2007-11-30 | 2007-11-30 | Opposite pull anchor wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201311145U CN201121521Y (en) | 2007-11-30 | 2007-11-30 | Opposite pull anchor wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201121521Y true CN201121521Y (en) | 2008-09-24 |
Family
ID=40008747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201311145U Expired - Fee Related CN201121521Y (en) | 2007-11-30 | 2007-11-30 | Opposite pull anchor wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201121521Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425439A (en) * | 2012-01-17 | 2012-04-25 | 中国矿业大学 | Method for reinforcing bidirectional staged stretched anchor cable of preset steel strand |
| CN103089279A (en) * | 2013-01-15 | 2013-05-08 | 河南理工大学 | Multi-lane along-groove inter-lane thin coal pillar reinforcing method |
| CN103742171A (en) * | 2013-12-27 | 2014-04-23 | 中国矿业大学(北京) | Mining roadway coal pillar reinforcing method |
| CN103850694A (en) * | 2014-03-19 | 2014-06-11 | 山东科技大学 | Grouting anchor cable and grouting method capable of realizing one-side grouting and two-side tightening |
| CN109611134A (en) * | 2018-11-12 | 2019-04-12 | 山东科技大学 | A kind of grouting cable anchor and strip filling method for loose media strip filling |
| CN114704267A (en) * | 2021-12-23 | 2022-07-05 | 中国矿业大学 | Cooperative anchoring structure for enhancing stability of gob-side entry driving coal pillar and construction method |
-
2007
- 2007-11-30 CN CNU2007201311145U patent/CN201121521Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425439A (en) * | 2012-01-17 | 2012-04-25 | 中国矿业大学 | Method for reinforcing bidirectional staged stretched anchor cable of preset steel strand |
| CN102425439B (en) * | 2012-01-17 | 2014-01-29 | 中国矿业大学 | Method for reinforcing bidirectional staged stretched anchor cable of preset steel strand |
| CN103089279A (en) * | 2013-01-15 | 2013-05-08 | 河南理工大学 | Multi-lane along-groove inter-lane thin coal pillar reinforcing method |
| CN103089279B (en) * | 2013-01-15 | 2016-01-20 | 河南理工大学 | The method that between crossheading lane, a kind of many lanes, bog-head coal post is reinforced |
| CN103742171A (en) * | 2013-12-27 | 2014-04-23 | 中国矿业大学(北京) | Mining roadway coal pillar reinforcing method |
| CN103850694A (en) * | 2014-03-19 | 2014-06-11 | 山东科技大学 | Grouting anchor cable and grouting method capable of realizing one-side grouting and two-side tightening |
| CN103850694B (en) * | 2014-03-19 | 2016-04-06 | 山东科技大学 | The grouting cable anchor that slip casting both sides, a kind of one side are fastening and grouting method |
| CN109611134A (en) * | 2018-11-12 | 2019-04-12 | 山东科技大学 | A kind of grouting cable anchor and strip filling method for loose media strip filling |
| CN109611134B (en) * | 2018-11-12 | 2020-03-31 | 山东科技大学 | Grouting anchor cable for filling loose body strips and strip filling method |
| CN114704267A (en) * | 2021-12-23 | 2022-07-05 | 中国矿业大学 | Cooperative anchoring structure for enhancing stability of gob-side entry driving coal pillar and construction method |
| CN114704267B (en) * | 2021-12-23 | 2023-10-31 | 中国矿业大学 | Collaborative anchoring structure for enhancing stability of gob-side entry driving coal pillar and construction method |
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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: 20080924 Termination date: 20121130 |