CN205778957U - A kind of delayed section of support system of workings subject to dy namic pressure - Google Patents
A kind of delayed section of support system of workings subject to dy namic pressure Download PDFInfo
- Publication number
- CN205778957U CN205778957U CN201620628379.5U CN201620628379U CN205778957U CN 205778957 U CN205778957 U CN 205778957U CN 201620628379 U CN201620628379 U CN 201620628379U CN 205778957 U CN205778957 U CN 205778957U
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- pressure
- anchor
- stress
- strength high
- supporting
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Abstract
A kind of delayed section of support system of workings subject to dy namic pressure, including high-strength high pre-stress pressure-relieving achor bar, high-strength high pre-stress pressure-release anchor cable, grouted anchor bar, anchor net, π section steel beam, allows pressure hydraulic prop.Roadway surrounding rock is laid anchor net, utilize high-strength high pre-stress pressure-relieving achor bar and high-strength high pre-stress pressure-release anchor cable that back is carried out supporting, set up π section steel beam, by allowing pressure hydraulic prop that top board is carried out strengthening supporting, with high-strength high pre-stress pressure-relieving achor bar, entity coal side in tunnel is carried out supporting, with grouted anchor bar, thin coal pillar is carried out grouting and reinforcing, accelerate thin coal pillar side stable, close crack, prevent from leaking out.This utility model construction is simple, and safety is good, it is adaptable to delayed section of supporting roadway surrounding rock of workings subject to dy namic pressure, is particularly suited for bump than more serious mine.
Description
Technical field
This utility model relates to deep laneway surrounding rock supporting field, is specifically related to a kind of delayed section of supporting system of workings subject to dy namic pressure
System.
Background technology
Under the conditions of deep-well gob side entry retaining, country rock rotates at top board and is chronically at high-speed deformation shape under the disturbance sunk
State, still shows long-time rheological phenomena after old roof construction is stably.Roadway surrounding rock convergence presents the large deformation of entity coal side,
Sinking significantly spent by top board, and entity coal side deflection accounts for two and helps more than the 80% of the amount of shifting near, and entity coal side holds with supporting construction
Carry the key point that performance is delayed section of surrounding rock stability of gob side entry retaining.Especially, often there is large area sheet in thin coal pillar side
Side unstability and air leakage phenomena, cause serious threat to the safety in production of work surface.
Summary of the invention
For overcoming existing technical problem, this utility model provides a kind of delayed section of support system of workings subject to dy namic pressure, use with
High-strength high pre-stress pressure-relieving achor bar, high-strength high pre-stress pressure-release anchor cable, allow hydraulic fluid press stanchions π section steel beam and grouted anchor bar
For the support system of core, there is higher supporting intensity, this support system is used for delayed section of workings subject to dy namic pressure, can guarantee that and enclose
Rock slowly allows pressure on the premise of certain supporting intensity, discharges a part of uncontrollable surrouding rock deformation, alleviates supporting
The pressure from surrounding rock that system is born, and then the self-bearing ability of Appropriate application roadway surrounding rock, efficiently control the large deformation of country rock.
This utility model is achieved through the following technical solutions: a kind of delayed section of support system of workings subject to dy namic pressure, including height
Strong high pre-stress pressure-relieving achor bar, high-strength high pre-stress pressure-release anchor cable, grouted anchor bar, anchor net, π section steel beam, allow pressure hydraulic prop, its
Feature is: lays anchor net on roadway surrounding rock, utilizes high-strength high pre-stress pressure-relieving achor bar and high-strength high pre-stress pressure-release anchor cable pair
Back carries out supporting, sets up π section steel beam, by allowing pressure hydraulic prop that top board is carried out strengthening supporting；In advance should with high-strength height
Power pressure-relieving achor bar carries out supporting to tunnel entity coal side, with grouted anchor bar, thin coal pillar is carried out grouting and reinforcing, accelerates thin coal pillar side
Stable, close crack, prevent from leaking out.
Preferably, described high-strength high pre-stress pressure-relieving achor bar includes: nut, allows pressure device, damping gasket, supporting plate, anchor pole
The body of rod, described nut has the female thread matched with anchor rod body, is threaded connection between nut and anchor rod body, described in allow
Pressure device is by the Loadings On Hemispherical Shell of hot-rolled steel impact, is provided with bolthole in the middle of it, for positioning anchor pole.
Preferably, described high-strength high pre-stress pressure-release anchor cable includes: lockset, damping gasket, supporting plate, anchor cable, at rope
It is provided with several on body and allows pressure ball body, be filled with expanded rubber granule in spheroid, spheroid can be compressed when country rock is pressed,
Thus increase anchor cable length, not only act as allow pressure effect, also increase the frictional force between anchor cable and rock mass, play anti-
Sliding effect.
Preferably, described anchor net is selected has bulk strength height, rigidity expanded metal lath good, not sealing-off, is conducive to improving and props up
The integer support intensity of protecting system.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of delayed section of support system of a kind of workings subject to dy namic pressure.
Fig. 2 is the structural representation of high-strength high pre-stress pressure-relieving achor bar.
Fig. 3 is the structural representation of high-strength high pre-stress pressure-release anchor cable.
Reference: the most high-strength high pre-stress pressure-relieving achor bar, the most high-strength high pre-stress pressure-release anchor cable, 3. anchor net, 4. π shaped steel
Beam, 5. coal column, 6. grouted anchor bar, 7. allow pressure hydraulic prop, 8. nut, 9. damping gasket, 10. allows pressure device, 11. supporting plates, and 12.
Anchor rod body, 13. locksets, 14. allow pressure ball body, 15. anchor cables, 16. expanded rubber granules.
Detailed description of the invention
The utility model is described in further detail below in conjunction with the accompanying drawings, a kind of delayed section of support system of workings subject to dy namic pressure, a kind of
Delayed section of support system of workings subject to dy namic pressure, including high-strength high pre-stress pressure-relieving achor bar 1, high-strength high pre-stress pressure-release anchor cable 2, slip casting anchor
Bar 6, anchor net 3, π section steel beam 4, allow and press hydraulic prop 7, it is characterized in that: on roadway surrounding rock, lay anchor net 3, utilize high-strength height pre-
Stress pressure-relieving achor bar 1 and high-strength high pre-stress pressure-release anchor cable 2 carry out supporting to back, set up π section steel beam 4, by allowing pressure
Hydraulic prop 7 carries out strengthening supporting to top board；With high-strength high pre-stress pressure-relieving achor bar 1, entity coal side in tunnel is carried out supporting, use
Grouted anchor bar 6 carries out grouting and reinforcing to thin coal pillar 5, accelerates thin coal pillar side and stablizes, closes crack, prevent from leaking out.
Described high-strength high pre-stress pressure-relieving achor bar 1 includes: nut 8, allows pressure device 10, damping gasket 9, supporting plate 11, anchor pole
The body of rod 12, described nut 8 has the female thread matched with anchor rod body 12, between nut 8 and anchor rod body 12 by screw thread even
Connect, described in allow pressure device 10 be by the Loadings On Hemispherical Shell of hot-rolled steel impact, be provided with bolthole in the middle of it, for anchor pole is carried out
Location.
Described high-strength high pre-stress pressure-release anchor cable 2 includes: lockset 13, damping gasket 9, supporting plate 11, anchor cable rustling sound body 15,
It is provided with several on cable body and allows pressure ball body 14, in spheroid, be filled with expanded rubber granule 16, can be by ball when country rock is pressed
Body compress, thus increase anchor cable 15 length, not only act as allow pressure effect, also increase anchor cable 15 and rock mass
Between frictional force, play anti-skidding effect.
The detailed description of the invention of delayed section of support system of a kind of workings subject to dy namic pressure is: first pass through linked network anchor pole by solid for anchor net 3
It is scheduled on top board and two to help, prevents sliding and the generation of inbreak phenomenon of tunnel top rock mass, then beat high on top board successively
Strong high pre-stress pressure-relieving achor bar 1 and high-strength high pre-stress pressure-release anchor cable 2 carry out initial support to top board, then set up π section steel beam
4, by allowing pressure hydraulic prop 7 that top board is carried out strengthening supporting；Then by high-strength high pre-stress pressure-relieving achor bar 1, entity coal is helped
Carry out supporting, finally by grouted anchor bar 6, thin coal pillar 5 is carried out grouting and reinforcing, accelerate thin coal pillar side and stablize, close crack, anti-
Leak-stopping wind, thus form complete support system.
Claims (3)
1. delayed section of support system of workings subject to dy namic pressure, including high-strength high pre-stress pressure-relieving achor bar, high-strength high pre-stress allows pressure anchor
Rope, grouted anchor bar, anchor net, π section steel beam, allow pressure hydraulic prop, it is characterized in that: on roadway surrounding rock, lay anchor net, utilize high-strength
High pre-stress pressure-relieving achor bar and high-strength high pre-stress pressure-release anchor cable carry out supporting to back, set up π section steel beam, by allowing pressure
Hydraulic prop carries out strengthening supporting to top board；With high-strength high pre-stress pressure-relieving achor bar, entity coal side in tunnel is carried out supporting, with note
Slurry anchor pole carries out grouting and reinforcing to thin coal pillar, accelerates thin coal pillar side and stablizes, closes crack.
A kind of delayed section of support system of workings subject to dy namic pressure the most according to claim 1, is characterized in that: described high-strength high pre-stress
Pressure-relieving achor bar includes: nut, allows pressure device, damping gasket, supporting plate, anchor rod body, and described nut has and matches with anchor rod body
Female thread, be threaded connection between nut and anchor rod body, described in allow pressure device be by hot-rolled steel impact hemisphere
Housing, is provided with bolthole in the middle of it, for positioning anchor pole.
A kind of delayed section of support system of workings subject to dy namic pressure the most according to claim 1, is characterized in that: described high-strength high pre-stress
Pressure-release anchor cable includes: lockset, damping gasket, supporting plate, anchor cable, is provided with several and allows pressure ball body, in spheroid on cable body
It is filled with expanded rubber granule, spheroid can be compressed when country rock is pressed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620628379.5U CN205778957U (en) | 2016-06-23 | 2016-06-23 | A kind of delayed section of support system of workings subject to dy namic pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620628379.5U CN205778957U (en) | 2016-06-23 | 2016-06-23 | A kind of delayed section of support system of workings subject to dy namic pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205778957U true CN205778957U (en) | 2016-12-07 |
Family
ID=58130935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620628379.5U Expired - Fee Related CN205778957U (en) | 2016-06-23 | 2016-06-23 | A kind of delayed section of support system of workings subject to dy namic pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205778957U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108049899A (en) * | 2017-12-06 | 2018-05-18 | 中国矿业大学(北京) | A kind of gob side entry driving thin coal pillar breaking surrounding rock reinforcement means |
| CN108951670A (en) * | 2018-09-06 | 2018-12-07 | 北京伊勒派斯科技有限公司 | A kind of combined support system |
| CN110939464A (en) * | 2019-11-29 | 2020-03-31 | 天地科技股份有限公司 | Gob-side entry retaining combined supporting method for adjacent working faces |
-
2016
- 2016-06-23 CN CN201620628379.5U patent/CN205778957U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108049899A (en) * | 2017-12-06 | 2018-05-18 | 中国矿业大学(北京) | A kind of gob side entry driving thin coal pillar breaking surrounding rock reinforcement means |
| CN108951670A (en) * | 2018-09-06 | 2018-12-07 | 北京伊勒派斯科技有限公司 | A kind of combined support system |
| CN110939464A (en) * | 2019-11-29 | 2020-03-31 | 天地科技股份有限公司 | Gob-side entry retaining combined supporting method for adjacent working faces |
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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: 20161207 Termination date: 20170623 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |