CN203867599U - Underground construction roadway pressure yielding anchor rod - Google Patents
Underground construction roadway pressure yielding anchor rod Download PDFInfo
- Publication number
- CN203867599U CN203867599U CN201420299555.6U CN201420299555U CN203867599U CN 203867599 U CN203867599 U CN 203867599U CN 201420299555 U CN201420299555 U CN 201420299555U CN 203867599 U CN203867599 U CN 203867599U
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- CN
- China
- Prior art keywords
- anchor rod
- pressure yielding
- handle nut
- underground construction
- allow
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- 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 an underground construction roadway pressure yielding anchor rod. The underground construction roadway pressure yielding anchor rod comprises an anchoring head, one or more pressure yielding connectors, an elastic cushion block, a W-shaped steel belt, a base plate, a pressure yielding device and a handle nut, wherein the anchoring head is arranged at the end of the anchor rod and used for anchoring the anchor rod in rock, the elastic cushion block, the W-shaped steel belt, the base plate, the pressure yielding device and the handle nut are sequentially arranged on a net piece and at one end, located on the outer wall of the rock, of the anchor rod, each pressure yielding connector is used for connecting a left segment of anchor rod body and a right segment of anchor rod body and is a cavity, the ends, located in each cavity, of the two segments of connected anchor rod bodies are provided with piston stopping blocks respectively, springs are arranged between the piston stopping blocks and the ends of the cavity of each connector, one or more pressure yielding connectors are adopted for the pressure yielding anchor rod, the pressure yielding capacity of the anchor rod can be directly adjusted according to the number of the connectors, the handle nut is adopted at the end of the anchor rod, the pre-tightening force of the anchored rod can be adjusted, the pressure yielding supporting capacity can be adjusted, and practicability is high.
Description
Technical field
The utility model relates to underground engineering wall rock supporting field, particularly a kind of underground construction roadway pressure-relieving achor bar.
Background technology
In the underground engineering field such as mine, tunnel, supporting roadway surrounding rock is absolutely necessary.Field, mine, along with mining depth increases day by day, geostatic stress enlarges markedly, and roadway surrounding rock stress increases, and at deep tunnel, country rock geology presents soft rock, and Deformation in Soft Rock Tunnel is large, and roadway support difficulty is large.
For large deformation underground construction tunnel, the engineering structural system supportings such as tunnel, mainly contain passive protecting both at home and abroad, three kinds of forms of active support and combined supporting, for better country rock of soft rock roadway being carried out to supporting, giving full play to self is this area basic supporting thought, suitably allow support system discharge country rock part strain energy of distortion, form the support system of " allowing-Zhi " one, give full play to self, support system can suitably release energy simultaneously, powerful supporting is provided again simultaneously, but, yield supporting system in currently available technology, itself otherwise can not well reach constant working resistance, constant working resistance depends on this body structure of support system, can not regulate according to the actual country rock geological condition in tunnel, often do not reach supporting-country rock one supporting effect of anticipation.
Summary of the invention
The problem existing for overcoming prior art, the pressure-relieving achor bar that provides a kind of underground construction roadway yield supporting system to use is provided the utility model object, this pressure-relieving achor bar can carry out constant " allow pressure " according to on-the-spot country rock geostatic stress situation, can adapt to different soft rock geology underground engineering wall rock support systems.
The utility model is achieved by the following technical solution:
A kind of underground construction roadway pressure-relieving achor bar, comprise anchorage head, one or more pressure connectors that allow, elastic cushion block, W-shaped steel band, backing plate, allow depressor and handle nut, anchorage head is arranged on anchor pole end, be used for anchor rod anchored in rock mass, be positioned at rock mass outer wall one end at anchor pole and on net sheet, elastic cushion block be set successively, W-shaped steel band, backing plate, allow depressor and handle nut, described allowing presses connector for connecting left and right two joint anchor bar bodies, it is a cavity body, the end that the two joint anchor bar bodies that connect are positioned at this cavity body is equipped with pistons stops, between pistons stops and connector cavity body end, spring is set.
The described depressor that allows can be spring or allow pressure pipe.
The threaded engagement of handle nut and anchor pole end, the pretightning force level of adjustable anchor pole.
Compared with prior art, useful technique effect of the present utility model:
Pressure-relieving achor bar has adopted one or more pressure connectors that allow, and what how many uses of connector directly can regulate anchor pole allows pressure energy power; Anchor pole end has adopted handle nut simultaneously, and the pretightning force of its adjustable anchor pole regulates yield supporting ability.
Brief description of the drawings
Fig. 1: pressure-relieving achor bar structure chart.
Fig. 2: allow pressure connector.
In figure: 1. tunnel/tunnel, 2. net sheet, 3. anchorage head, 4. allows pressure connector, 5. elastic cushion block, 6.W shape steel band, 7. backing plate, 8. allows depressor, 9. handle nut.
Detailed description of the invention
Below in conjunction with specific embodiment, the utility model is described further, but the desired protection domain of the utility model is not limited to the described scope of specific embodiment.
Example 1: in conjunction with a kind of underground construction roadway pressure-relieving achor bar of Fig. 1 and Fig. 2, comprise that anchorage head 3, one or more allowing press connector 4, elastic cushion block 5, W-shaped steel band 6, backing plate 7, allow depressor 8 and handle nut 9, it is characterized in that:
Anchorage head 3 is arranged on anchor pole end, for by anchor rod anchored in rock mass;
Allow and press connector 4 for connecting left and right two joint anchor bar bodies, it is a cavity body, the end that the two joint anchor bar bodies that connect are positioned at this cavity body is equipped with pistons stops, between pistons stops and connector 7 cavity body ends, spring is set, in the time that bolt support is in rock mass, connector 7 will allow surrouding rock deformation in scope to a certain degree allow pressure;
Be positioned at rock mass outer wall one end at anchor pole arranges successively elastic cushion block 5, W-shaped steel band 6, backing plate 7, allows depressor 8 and handle nut 9 on net sheet 2, the described depressor 8 that allows can be spring or allow pressure pipe, threaded engagement by handle nut 9 with anchor pole end, the pretightning force level of adjustable anchor pole, regulates bolt support power.
Below by reference to the accompanying drawings embodiment of the present utility model is explained in detail; but the utility model is not limited to this; in the ken possessing person of ordinary skill in the field; under the prerequisite that does not depart from the utility model aim, can also make a variety of changes; person of ordinary skill in the field is from above-mentioned design; without performing creative labour, all conversion of having done, within all dropping on protection domain of the present utility model.
Claims (2)
1. a underground construction roadway pressure-relieving achor bar, comprises that anchorage head (3), one or more allowing press connector (4), elastic cushion block (5), W-shaped steel band (6), backing plate (7), allow depressor (8) and handle nut (9), it is characterized in that:
Anchorage head (3) is arranged on anchor pole end, be used for anchor rod anchored in rock mass, be positioned at rock mass outer wall one end at anchor pole arranges successively elastic cushion block (5), W-shaped steel band (6), backing plate (7), allows depressor (8) and handle nut (9) on net sheet (2), allow and press connector (4) for connecting left and right two joint anchor bar bodies, it is a cavity body, the end that the two joint anchor bar bodies that connect are positioned at this cavity body is equipped with pistons stops, between pistons stops and connector (7) cavity body end, spring is set;
Described handle nut (9) and the threaded engagement of anchor pole end, the pretightning force level of adjustable anchor pole;
The described depressor (8) that allows is spring.
2. a kind of underground construction roadway pressure-relieving achor bar according to claim 1, is characterized in that: described in allow depressor (8) adopt to allow pressure pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420299555.6U CN203867599U (en) | 2014-06-08 | 2014-06-08 | Underground construction roadway pressure yielding anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420299555.6U CN203867599U (en) | 2014-06-08 | 2014-06-08 | Underground construction roadway pressure yielding anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203867599U true CN203867599U (en) | 2014-10-08 |
Family
ID=51648569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420299555.6U Expired - Fee Related CN203867599U (en) | 2014-06-08 | 2014-06-08 | Underground construction roadway pressure yielding anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203867599U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089686A (en) * | 2015-07-23 | 2015-11-25 | 合肥吉源电子有限公司 | Anti-impact ground-pressure lengthening anchor rod |
| CN105178313A (en) * | 2015-05-07 | 2015-12-23 | 重庆交通大学 | Yielding type anchor rod assembly |
| CN110258597A (en) * | 2019-07-15 | 2019-09-20 | 中南大学 | A method of it consumes energy for rock bolt shank damping |
| CN110924389A (en) * | 2019-12-10 | 2020-03-27 | 华北水利水电大学 | Device and system for intelligently monitoring stability of extensible anchor rod and acoustic emission rock-soil body under control of multistage stress and displacement |
| CN111042127A (en) * | 2019-12-27 | 2020-04-21 | 宁夏大学 | Energy-consumption self-recovery pressure type anchor rod and construction method thereof |
-
2014
- 2014-06-08 CN CN201420299555.6U patent/CN203867599U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178313A (en) * | 2015-05-07 | 2015-12-23 | 重庆交通大学 | Yielding type anchor rod assembly |
| CN105089686A (en) * | 2015-07-23 | 2015-11-25 | 合肥吉源电子有限公司 | Anti-impact ground-pressure lengthening anchor rod |
| CN110258597A (en) * | 2019-07-15 | 2019-09-20 | 中南大学 | A method of it consumes energy for rock bolt shank damping |
| CN110924389A (en) * | 2019-12-10 | 2020-03-27 | 华北水利水电大学 | Device and system for intelligently monitoring stability of extensible anchor rod and acoustic emission rock-soil body under control of multistage stress and displacement |
| CN111042127A (en) * | 2019-12-27 | 2020-04-21 | 宁夏大学 | Energy-consumption self-recovery pressure type anchor rod and construction method thereof |
| CN111042127B (en) * | 2019-12-27 | 2021-07-20 | 宁夏大学 | Construction method of energy-consumption self-recovery pressure type anchor rod |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141008 Termination date: 20160608 |