CN204703936U - Closed full length fastening high pre-stress rib and roofbolt ruggedized construction - Google Patents
Closed full length fastening high pre-stress rib and roofbolt ruggedized construction Download PDFInfo
- Publication number
- CN204703936U CN204703936U CN201520472801.8U CN201520472801U CN204703936U CN 204703936 U CN204703936 U CN 204703936U CN 201520472801 U CN201520472801 U CN 201520472801U CN 204703936 U CN204703936 U CN 204703936U
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- Prior art keywords
- anchor
- hole
- rockbolt installation
- installation hole
- rib
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Abstract
The utility model discloses a kind of closed full length fastening high pre-stress rib and roofbolt ruggedized construction, evenly get out multiple rockbolt installation hole along lower side rib, adjacent several rockbolt installation holes form one group of anchor hole; Resin by injection Anchor Agent in rockbolt installation hole, anchor pole inserts in rockbolt installation hole also by resin anchoring agent anchoring; Metal baffle arranges the through hole identical with the rockbolt installation hole number often organized in anchor hole; Metal baffle is pressed on lower side rib, often organizes anchor pole in the rockbolt installation hole in anchor hole through corresponding metal baffle, is inserted in anchor dish and nut and by nut check anchor pole.The shear failure of changing of the relative positions generation mutually between this structure restriction country rock scar, has good supporting effect in large-inclination-angle coal bed tunnel and soft-rock tunnel; Make concentrated lateral load change face load into simultaneously, make that a little stressed to become face stressed, both can alleviate failure of rib, and rib can be made again to become three dimension stress from unidirectional pressurized, improve strength of coal wall and supporting capacity.
Description
Technical field
The utility model relates to a kind of coal mine roadway surrounding rock consolidation structure, particularly relates to a kind of gob-side entry retaining of large-inclination coal seam or country rock of soft rock roadway ruggedized construction.
Background technology
Present stage, colliery tunnel support generally adopted the surface supporting etc. of anchor pole, anchor cable, anchor net, sprayed mortar.Anchor pole, anchor cable utilize cohesive action country rock and rock mass stability combined and produce suspension effectiveness, compound beam effect, reinforcing effect, to reach the object of supporting.But anchor pole, anchor cable can not limit the changing of the relative positions between rock stratum, in high inclination-angle and soft rock supporting, effect is poor.
Anchor net, concrete spraying support are the effects of restriction surrouding rock deformation, whole scar are formed an entirety.But surperficial rock stratum and inner country rock cannot be formed an entirety by its supporting, its support pattern is passive protecting simultaneously, cannot conduct supporting power to deep.
The anchorage style extensively adopted in current mine bolt supporting is end anchor, and this anchor pole can only provide axial tension, and resist the intercalated dislocation of rock stratum and shear resistance poor.
Utility model content
Cannot provide restriction country rock that the supporting of shearing occurs for existing supporting, the utility model provides a kind of shear failure limiting mutual changing of the relative positions generation between country rock scar, has closed full length fastening high pre-stress rib and the roofbolt ruggedized construction of good supporting effect in large-inclination-angle coal bed tunnel and soft-rock tunnel.
In order to solve the problems of the technologies described above, the utility model have employed following technical scheme:
Closed full length fastening high pre-stress rib and roofbolt ruggedized construction, the lower side rib of gob side entry retaining evenly gets out the rockbolt installation hole that multiple length is greater than rib rupture zone width, rockbolt installation hole horizontal or put in roof strata in a fixed angle of altitude, adjacent several rockbolt installation holes form one group of anchor hole; Resin by injection Anchor Agent in each rockbolt installation hole, anchor pole to insert in rockbolt installation hole and is bonded in rockbolt installation hole by resin anchoring agent; Often organize the corresponding metal baffle of anchor hole, metal baffle arranges the through hole identical with the rockbolt installation hole number often organized in anchor hole; Metal baffle is pressed on lower side rib, often organizes anchor pole in the rockbolt installation hole in anchor hole through corresponding metal baffle, the one end passing metal baffle is inserted in anchor dish and nut and by nut check anchor pole at anchor pole.
Compared with prior art, the utility model has following technique effect:
1, this closed full length fastening high pre-stress rib and roofbolt ruggedized construction limit the shear failure of changing of the relative positions generation mutually between country rock scar, in large-inclination-angle coal bed tunnel and soft-rock tunnel, have good supporting effect.
2, this structure makes concentrated lateral load change face load into simultaneously, makes that a little stressed to become face stressed, both can alleviate failure of rib, and rib can be made again to become three dimension stress from unidirectional pressurized, improve strength of coal wall and supporting capacity.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of closed full length fastening high pre-stress rib and roofbolt ruggedized construction.
In accompanying drawing: 1-roof strata; 2-resin anchoring agent; 3-anchor pole; 4-metal baffle; 5-anchor dish; 6-nut.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, closed full length fastening high pre-stress rib and roofbolt ruggedized construction, the lower side rib of gob side entry retaining evenly gets out the rockbolt installation hole that multiple length is greater than rib rupture zone width, rockbolt installation hole horizontal or put in roof strata 1 in a fixed angle of altitude, adjacent several rockbolt installation holes form one group of anchor hole.Resin by injection Anchor Agent 2 in each rockbolt installation hole, anchor pole 3 to be inserted in rockbolt installation hole and is bonded in rockbolt installation hole by resin anchoring agent.Often organize the corresponding metal baffle 4 of anchor hole, metal baffle 4 arranges the through hole identical with the rockbolt installation hole number often organized in anchor hole.Metal baffle 4 is pressed on lower side rib, often organizes anchor pole 3 in the rockbolt installation hole in anchor hole through corresponding metal baffle 4, the one end passing metal baffle 4 is inserted in anchor dish 5 and nut 6 and locks anchor pole 3 by nut 6 at anchor pole 3.
The effect of the bonding anchoring of total length is to coal body reinforcement, and improve coal mass strength, the effect of closed wall supporting and higher pre-anchored force is lateral pressure rib being provided to an active, and make rib become three dimension stress from unidirectional pressurized, strength of coal wall is able to larger raising.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (1)
1. closed full length fastening high pre-stress rib and roofbolt ruggedized construction, it is characterized in that, the lower side rib of gob side entry retaining evenly gets out the rockbolt installation hole that multiple length is greater than rib rupture zone width, rockbolt installation hole horizontal or put in roof strata (1) in a fixed angle of altitude, adjacent several rockbolt installation holes form one group of anchor hole; Resin by injection Anchor Agent (2) in each rockbolt installation hole, anchor pole (3) to insert in rockbolt installation hole and is bonded in rockbolt installation hole by resin anchoring agent; Often organize the corresponding metal baffle (4) of anchor hole, metal baffle (4) is upper arranges the through hole identical with the rockbolt installation hole number often organized in anchor hole; Metal baffle (4) is pressed on lower side rib, often organize anchor pole (3) in the rockbolt installation hole in anchor hole through corresponding metal baffle (4), the one end passing metal baffle (4) is inserted in anchor dish (5) and nut (6) and locks anchor pole (3) by nut (6) at anchor pole (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520472801.8U CN204703936U (en) | 2015-06-30 | 2015-06-30 | Closed full length fastening high pre-stress rib and roofbolt ruggedized construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520472801.8U CN204703936U (en) | 2015-06-30 | 2015-06-30 | Closed full length fastening high pre-stress rib and roofbolt ruggedized construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204703936U true CN204703936U (en) | 2015-10-14 |
Family
ID=54283559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520472801.8U Expired - Fee Related CN204703936U (en) | 2015-06-30 | 2015-06-30 | Closed full length fastening high pre-stress rib and roofbolt ruggedized construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204703936U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105804074A (en) * | 2016-04-11 | 2016-07-27 | 成都格瑞思文化传播有限公司 | Anchor rod reinforcement structure |
| CN105863693A (en) * | 2016-05-09 | 2016-08-17 | 美亚高新材料股份有限公司 | Full-length anchoring supporting method for deep high-stress roadway |
| CN105888687A (en) * | 2016-04-21 | 2016-08-24 | 西北矿冶研究院 | Method for reinforcing top pillar mining roadway rock mass |
| CN107355257A (en) * | 2017-09-01 | 2017-11-17 | 中煤第建设有限公司 | The permanent traverse point of underground mine use and installation method |
-
2015
- 2015-06-30 CN CN201520472801.8U patent/CN204703936U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105804074A (en) * | 2016-04-11 | 2016-07-27 | 成都格瑞思文化传播有限公司 | Anchor rod reinforcement structure |
| CN105888687A (en) * | 2016-04-21 | 2016-08-24 | 西北矿冶研究院 | Method for reinforcing top pillar mining roadway rock mass |
| CN105888687B (en) * | 2016-04-21 | 2019-01-25 | 西北矿冶研究院 | Method for reinforcing top pillar mining roadway rock mass |
| CN105863693A (en) * | 2016-05-09 | 2016-08-17 | 美亚高新材料股份有限公司 | Full-length anchoring supporting method for deep high-stress roadway |
| CN107355257A (en) * | 2017-09-01 | 2017-11-17 | 中煤第建设有限公司 | The permanent traverse point of underground mine use and installation 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: 20151014 Termination date: 20160630 |
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| CF01 | Termination of patent right due to non-payment of annual fee |