CN202745885U - Inclined type locking anchor pipe apparatus - Google Patents
Inclined type locking anchor pipe apparatus Download PDFInfo
- Publication number
- CN202745885U CN202745885U CN 201220027435 CN201220027435U CN202745885U CN 202745885 U CN202745885 U CN 202745885U CN 201220027435 CN201220027435 CN 201220027435 CN 201220027435 U CN201220027435 U CN 201220027435U CN 202745885 U CN202745885 U CN 202745885U
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- CN
- China
- Prior art keywords
- anchor pipe
- steel arch
- anchor tube
- locking anchor
- lock pin
- 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 - Lifetime
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- Piles And Underground Anchors (AREA)
Abstract
The utility model relates to an inclined type locking anchor pipe apparatus, comprising a steel arch centering (1) and a locking anchor pipe (2). The inclined type anchor pipe apparatus is characterized in that the locking anchor pipe (2) is disposed at one side of the steel arch centering (1); the steel arch centering (1) is anchored to a deep surrounding rock through the locking anchor pipe (2); the inclining angle of the locking anchor pipe is 15-30 DEG. The inclined type locking anchor pipe apparatus is advantageous in that the locking anchor pipe has an upward holding function, sinking and converging of a tunnel vault can be effectively reduced, and the restraining capability of the support on the deformation of surrounding rocks at the initial stage of a tunnel can be greatly improved.
Description
One, technical field
The utility model relates to a kind of inclined lock pin anchor tube device of bowing in the tunnel support structure, is the improvement to existing lock pin anchor tube device.
Two, background technology
The lock pin refer to the tunnel top bar excavation finish set up the steel arch frame after, the operation that steel arch frame foot is fixing.After the installation of steel arch frame, if do not lock pin, the distortion of country rock may impel the steel arch frame that larger rigid body displacement occurs, thereby the effect of contraction of surrouding rock deformation is weakened.By performing lock pin anchor tube (bar), and firmly weld with the steel arch frame, make lock pin anchor tube (bar) and steel arch frame be linked to be an integral body, the steel arch frame is anchored at the country rock deep, the rigid body displacement of restriction steel arch frame, disperse the bearing capacity of load and increase country rock, make the preliminary bracing that comprises the steel arch frame can stably carry pressure from surrounding rock.
In the soft stratum, for increasing normal pressure and the frictional resistance between country rock and the anchor pole sidewall, act on the vertical stress of anchor pole end with the sinking of opposing tunnel support structure, usually replace the effect of lock foot anchoring stock with the larger lock pin anchor tube of diameter.The Main Function of lock pin anchor tube is the rigid body displacement that limits as much as possible the steel arch frame, makes it bear as early as possible the pressure that surrouding rock deformation causes, guarantees the stability of tunnel initial-stage.
The angle that angle refers to anchor tube and horizontal direction is tiltedly squeezed in bowing of lock pin anchor tube.The angle difference is tiltedly squeezed in bowing of lock pin anchor tube, and the locking ability of steel arch frame is had larger difference.
The angle of squeezing into of traditional lock pin anchor tube is generally 0 °, and namely along the steel arch frame radially, anchor tube is squeezed into the radial depth maximum in the country rock in this case, and anchor tube this moment (bar) can provide larger pulling capacity.But in soft rock, the plastic zone of country rock is larger behind the sap excavating, and anchor tube passes the limited length of plastic zone, and the radially pulling capacity that causes anchor tube also is limited, and only leaning on radially, pulling capacity can not satisfy the restraint forces that locks the steel arch frame.By practice and checking computations proof, when the squeezing into angle and be 15 °～30 ° of lock pin anchor tube, both take into account anchor tube and squeezed into radial depth in the country rock, also provide larger rest effect to the steel arch frame simultaneously, the vault that produces sink and convergence less, the locking action of steel arch frame is greatly improved.
Three, summary of the invention
The purpose of this utility model provides a kind of inclined lock pin anchor tube device of bowing, and improves lock pin anchor tube to the locking ability of steel arch frame, thereby strengthens preliminary bracing to the restriction ability of surrouding rock deformation, improves the safety of construction and the stability of structure.
The technical scheme that realizes the utility model and adopt is:
A kind of inclined lock pin anchor tube device of bowing comprises steel arch frame, lock pin anchor tube, and it is characterized in that: lock pin anchor tube is positioned at steel arch frame one side, and the steel arch frame is anchored in the country rock deep by lock pin anchor tube, and it is 15 °～30 ° that the bowing of lock pin anchor tube tiltedly squeezed into angle
Apply the advantage that method is compared and had with existing: adopt this novel inclined lock pin anchor tube device of bowing, make lock pin anchor tube produce the pop-up effect, effectively reduce tunnel arch top settlement and convergence, Tunnel is greatly improved to the restriction ability of surrouding rock deformation.
Four, description of drawings
Fig. 1 structural representation of the present utility model (the side figure such as axle)
Fig. 2 structural representation of the present utility model (side view)
Five, the specific embodiment
Referring to Fig. 1, Fig. 2, the utility model is a kind of inclined lock pin anchor tube device of bowing, comprise steel arch frame (1), lock pin anchor tube (2), it is characterized in that: lock pin anchor tube (2) is positioned at steel arch frame (1) one side, steel arch frame (1) is anchored in the country rock deep by lock pin anchor tube (2), and it is 15 °～30 ° that the bowing of lock pin anchor tube tiltedly squeezed into angle.
Operating principle: change into 15 °～30 ° by the angle that applies that will lock the pin anchor tube by 0 °, make lock pin anchor tube produce the pop-up effect, Tunnel is greatly improved to the restriction ability of surrouding rock deformation, effectively reduce vault sinking and convergence.
Claims (1)
1. the inclined of bowing is locked pin anchor tube device, comprise steel arch frame (1), lock pin anchor tube (2), it is characterized in that: lock pin anchor tube (2) is positioned at steel arch frame (1) one side, steel arch frame (1) is anchored in the country rock deep by lock pin anchor tube (2), and it is 15 °～30 ° that the bowing of lock pin anchor tube tiltedly squeezed into angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220027435 CN202745885U (en) | 2012-01-20 | 2012-01-20 | Inclined type locking anchor pipe apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220027435 CN202745885U (en) | 2012-01-20 | 2012-01-20 | Inclined type locking anchor pipe apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202745885U true CN202745885U (en) | 2013-02-20 |
Family
ID=47705301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220027435 Expired - Lifetime CN202745885U (en) | 2012-01-20 | 2012-01-20 | Inclined type locking anchor pipe apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202745885U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234724A (en) * | 2014-09-29 | 2014-12-24 | 中铁五局（集团）有限公司 | Device for accurately positioning tunnel foot-lock anchor pipes and integrating with steel frame |
| CN106150533A (en) * | 2015-03-24 | 2016-11-23 | 兰州交通大学 | A kind of loess tunnel vertical deformation control structure and apply method |
| CN106640147A (en) * | 2016-11-25 | 2017-05-10 | 甘肃路桥建设集团有限公司 | Tunnel primary support steel arch frame lock foot fixing method |
| CN106677805A (en) * | 2016-12-28 | 2017-05-17 | 中铁第四勘察设计院集团有限公司 | Connecting device of tunnel steel frame and locking anchor pipe |
| CN108661681A (en) * | 2018-07-20 | 2018-10-16 | 上海大屯能源股份有限公司江苏分公司 | A kind of FLOOR ANCHOR band angle mounting device and installation method |
-
2012
- 2012-01-20 CN CN 201220027435 patent/CN202745885U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234724A (en) * | 2014-09-29 | 2014-12-24 | 中铁五局（集团）有限公司 | Device for accurately positioning tunnel foot-lock anchor pipes and integrating with steel frame |
| CN106150533A (en) * | 2015-03-24 | 2016-11-23 | 兰州交通大学 | A kind of loess tunnel vertical deformation control structure and apply method |
| CN106640147A (en) * | 2016-11-25 | 2017-05-10 | 甘肃路桥建设集团有限公司 | Tunnel primary support steel arch frame lock foot fixing method |
| CN106677805A (en) * | 2016-12-28 | 2017-05-17 | 中铁第四勘察设计院集团有限公司 | Connecting device of tunnel steel frame and locking anchor pipe |
| CN106677805B (en) * | 2016-12-28 | 2019-02-05 | 中铁第四勘察设计院集团有限公司 | A kind of attachment device of tunnel steelframe and lock foot anchor tube |
| CN108661681A (en) * | 2018-07-20 | 2018-10-16 | 上海大屯能源股份有限公司江苏分公司 | A kind of FLOOR ANCHOR band angle mounting device and installation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WEST ZHONGDA CONSTRUCTION GROUP CO., LTD. Free format text: FORMER OWNER: LANZHOU JIAOTONG UNIV. Effective date: 20130415 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 730070 LANZHOU, GANSU PROVINCE TO: 730000 LANZHOU, GANSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130415 Address after: 730000, Gansu Lanzhou Chengguan District, Zhangye Road No. 87 in the vast building of the West China Construction Group Co., Ltd. Patentee after: XI'AN ZHONGDA CONSTRUCTION GROUP CO., LTD. Address before: 730070 Lanzhou, Anning District, Anning West Road,, No. 88, LanZhou JiaoTong University Patentee before: Lanzhou Jiaotong Univ. |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 730000, Gansu Lanzhou Chengguan District, Zhangye Road No. 87 in the vast building of the West China Construction Group Co., Ltd. Patentee after: West China Construction Group Limited by Share Ltd Address before: 730000, Gansu Lanzhou Chengguan District, Zhangye Road No. 87 in the vast building of the West China Construction Group Co., Ltd. Patentee before: XI'AN ZHONGDA CONSTRUCTION GROUP CO., LTD. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 730000 No. 100 Huancheng West Road, Chengguan Town, Yuzhong County, Lanzhou City, Gansu Province Patentee after: Huabang Construction Investment Group Co., Ltd. Address before: 730000, Gansu Lanzhou Chengguan District, Zhangye Road No. 87 in the vast building of the West China Construction Group Co., Ltd. Patentee before: West China Construction Group Limited by Share Ltd |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130220 |