CN206707745U - A kind of lock pin anchor tube that steel arch-shelf deformation characteristic is adapted to for soft rock tunnel - Google Patents
A kind of lock pin anchor tube that steel arch-shelf deformation characteristic is adapted to for soft rock tunnel Download PDFInfo
- Publication number
- CN206707745U CN206707745U CN201720544310.9U CN201720544310U CN206707745U CN 206707745 U CN206707745 U CN 206707745U CN 201720544310 U CN201720544310 U CN 201720544310U CN 206707745 U CN206707745 U CN 206707745U
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- CN
- China
- Prior art keywords
- anchor tube
- tube body
- steel arch
- lock pin
- bearing plate
- 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 discloses a kind of lock pin anchor tube that steel arch-shelf deformation characteristic is adapted to for soft rock tunnel, it is characterized in that：Including anchor tube body, quill, spring, bearing plate and multigroup connecting tube；The front end sleeve of described anchor tube body is provided with dividing plate, spring is provided between quill and dividing plate in quill at front end in anchor tube body；Described anchor tube body, which corresponds at bearing plate, is provided with multigroup connecting tube, and every group of connecting tube includes two connecting tubes, and two connecting tubes are located at same in the plane of anchor tube body axis, are connected between connecting tube and bearing plate by spring.The utility model is simple in construction, easy to operate so that anchor tube body effectively adapts to, due to transversal effect caused by steel arch-shelf and axial effect, make the flexible support effect of anchor tube body more notable, with steel arch-shelf sharing lood.
Description
Technical field
The utility model belongs to constructing tunnel equipment technical field, particularly relates to a kind of soft rock tunnel that is used for and adapts to
The lock pin anchor tube of steel arch-shelf deformation characteristic.
Background technology
China's transport development needs to build substantial amounts of tunnel, in engineering construction, can run into increasing tunnel safety
Support issues, ensure that tunnel surrounding is stable significant to tunnel construction.In numerous supporting construction, lock pin anchor tube is because of it
Economical and practical, simple and easy and significant effect, has been widely used in Modelling of Tunnel Excavation in Soft Rock.
In practice of construction, lock pin anchor tube needs and steel arch-shelf welds together, and forms lock foot anchoring stock and combines with steel arch-shelf
Carrying mechanism, carries pressure from surrounding rock jointly, and mechanical behavior has larger difference with traditional system anchor bolt.In addition, in soft rock tunnel
In road supporting, surrouding rock deformation, pressure from surrounding rock are generally larger, especially in high ground stress soft rock stress tunnel, act on steel arch-shelf
Pressure from surrounding rock is very big, and lock pin anchor tube relies primarily on its horizontal drag and played a supporting role, but is used as flexible link, under end load
Internal force and deformation along country rock depth attenuation quickly, now, the mechanical behavior of lock pin anchor tube is mainly shown as only close to steel arch
Transversal effect in the anchor tube free end smaller range of frame, including moment of flexure, shearing and compatibility of deformation, axial effect is then with anchor
Based on pipe anchoring section end；So that the flexible support effect of lock pin anchor tube is poor.
The content of the invention
In order to solve the above-mentioned technical problem, the utility model provides a kind of simple in construction, easy to operate, anchor tube body it is soft
Property supporting effect it is good be used for soft rock tunnel adapt to steel arch-shelf deformation characteristic lock pin anchor tube.
The technical solution adopted in the utility model is：A kind of lock pin anchor that steel arch-shelf deformation characteristic is adapted to for soft rock tunnel
Pipe, including anchor tube body, quill, spring, bearing plate and multigroup connecting tube；The front end sleeve of described anchor tube body is mounted in movable sleeve
In cylinder, dividing plate is provided with anchor tube body at front end, spring is provided between quill and dividing plate；Described anchor tube body corresponds to pressure-bearing
Multigroup connecting tube is provided with plate, every group of connecting tube includes two connecting tubes, and two connecting tubes are positioned at same perpendicular to anchor tube body axle
In the plane of line, connected between connecting tube and bearing plate by spring.
In the above-mentioned lock pin anchor tube for being used for soft rock tunnel and adapting to steel arch-shelf deformation characteristic, the two of every group of described connecting tube
The axis of individual connecting tube passes through the center of circle of anchor tube body section, and the angle between two connecting tubes is 60 °.
In the above-mentioned lock pin anchor tube for being used for soft rock tunnel and adapting to steel arch-shelf deformation characteristic, described connecting tube and bearing plate
The outside of the spring of connection is provided with fixes sleeve.
In the above-mentioned lock pin anchor tube for being used for soft rock tunnel and adapting to steel arch-shelf deformation characteristic, outside the front end of described anchor tube body
Wall is provided with annular lug, and quill rear end is provided with stop grouting plug.
In the above-mentioned lock pin anchor tube for being used for soft rock tunnel and adapting to steel arch-shelf deformation characteristic, the section of described bearing plate is
Arc, bearing plate and anchor tube body are coaxial.
Compared with prior art, the beneficial effects of the utility model are：The utility model is simple in construction, easy to operate, makes
Anchor tube body effectively adapts to, due to transversal effect caused by steel arch-shelf and axial effect, to make the flexible support effect of anchor tube body more
Significantly, with steel arch-shelf sharing lood.
Brief description of the drawings
Fig. 1 is front view of the present utility model.
Fig. 2 is side view of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in Figure 1, 2, the utility model includes anchor tube body 8, quill 1, spring 2, bearing plate 11 and multigroup connection
Pipe 9；The front end sleeve of described anchor tube body 8 is provided with dividing plate 5, dividing plate 5 is in circle in quill 1 at the Inner Front End of anchor tube body 8
Shape, is provided with spring 2 between quill 1 and dividing plate 5, spring 2 is connected with quill 1 and dividing plate 5 respectively by the hook 3 at both ends
Connect.The front end outer wall of anchor tube body 8 is provided with annular lug 6, and annular lug 6 can prevent quill 1 from being taken off from anchor tube body 8
Fall.The rear end of quill 1 is provided with stop grouting plug 7.Immersion coating or grease are scribbled between described quill 1 and anchor tube body 8.
Described anchor tube body 8, which corresponds at bearing plate, is provided with multigroup connecting tube 9, and every group of connecting tube 9 includes two connecting tubes,
Positioned at same in the plane of the axis of anchor tube body 8, the axis of two connecting tubes 9 passes through the section of anchor tube body 8 for two connecting tubes 9
The center of circle, the angle between two connecting tubes 9 is 60 °.Connected between connecting tube 9 and bearing plate 11 by spring, outside spring
Side is provided with fixes sleeve 10, and immersion coating or grease are scribbled between fixes sleeve 10 and connecting tube 9.Described bearing plate 11 is cut
Face is arc, and bearing plate 11 and anchor tube body 8 are coaxial.
Specific implementation process of the present utility model is as follows：When the axial force that anchor tube body 8 is born is pressure, before anchor tube body 8
End pieces composition, which allows, presses component, and spring 2 is in compressive state, and quill 1 moves towards anchor tube body 1, when pressure reaches certain
During value, stop grouting plug 7 seals grout outlet 5, plays saving material result.When it is pulling force that anchor tube, which holds the axial force that body 8 bears, anchor tube
The front end component of body 8 forms tensional element, and spring 2 is in extended state, and quill 1 moves away from the direction of anchor tube body 8,
Grout outlet 5 continues pulp, and the front end of anchor tube body 1 fully couples anchoring with ground, anchor tube body 8 is not produced sliding by pulling force effect broken
It is bad.In addition, transversal effect is concentrated mainly on the free end near zone of the anchor tube body 8 close to steel arch-shelf, when anchor tube body 8 bears steel
When bow member transmits moment of flexure, shearing and compatibility of deformation effect, the flexible support component of multigroup composition of spring 91, can effectively it delay
Various transversal effects are solved, the drawbacks of free end for being apt to anchor tube body 8 is easily destroyed.
Claims (5)
1. a kind of lock pin anchor tube that steel arch-shelf deformation characteristic is adapted to for soft rock tunnel, it is characterized in that：Including anchor tube body, movable sleeve
Cylinder, spring, bearing plate and multigroup connecting tube；The front end sleeve of described anchor tube body is in quill, in anchor tube body at front end
Provided with dividing plate, spring is provided between quill and dividing plate；Described anchor tube body, which corresponds at bearing plate, is provided with multigroup connecting tube,
Every group of connecting tube includes two connecting tubes, two connecting tubes positioned at same in the plane of anchor tube body axis, connecting tube with
Connected between bearing plate by spring.
2. the lock pin anchor tube according to claim 1 that steel arch-shelf deformation characteristic is adapted to for soft rock tunnel, it is characterized in that：Institute
The axis of two connecting tubes of the every group of connecting tube stated passes through the center of circle of anchor tube body section, and the angle between two connecting tubes is
60°。
3. the lock pin anchor tube according to claim 1 or 2 that steel arch-shelf deformation characteristic is adapted to for soft rock tunnel, its feature
It is：The outside for the spring that described connecting tube is connected with bearing plate is provided with fixes sleeve.
4. the lock pin anchor tube according to claim 1 or 2 that steel arch-shelf deformation characteristic is adapted to for soft rock tunnel, its feature
It is：The front end outer wall of described anchor tube body is provided with annular lug, and quill rear end is provided with stop grouting plug.
5. the lock pin anchor tube according to claim 1 or 2 that steel arch-shelf deformation characteristic is adapted to for soft rock tunnel, its feature
It is：The section of described bearing plate is arc, and bearing plate and anchor tube body are coaxial.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720544310.9U CN206707745U (en) | 2017-05-17 | 2017-05-17 | A kind of lock pin anchor tube that steel arch-shelf deformation characteristic is adapted to for soft rock tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720544310.9U CN206707745U (en) | 2017-05-17 | 2017-05-17 | A kind of lock pin anchor tube that steel arch-shelf deformation characteristic is adapted to for soft rock tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206707745U true CN206707745U (en) | 2017-12-05 |
Family
ID=60464546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720544310.9U Expired - Fee Related CN206707745U (en) | 2017-05-17 | 2017-05-17 | A kind of lock pin anchor tube that steel arch-shelf deformation characteristic is adapted to for soft rock tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206707745U (en) |
-
2017
- 2017-05-17 CN CN201720544310.9U patent/CN206707745U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20171205 Termination date: 20200517 |