CN202055842U - Structure with connection with steel arch frame and locking anchor pipes of tunnel - Google Patents
Structure with connection with steel arch frame and locking anchor pipes of tunnel Download PDFInfo
- Publication number
- CN202055842U CN202055842U CN2011201886859U CN201120188685U CN202055842U CN 202055842 U CN202055842 U CN 202055842U CN 2011201886859 U CN2011201886859 U CN 2011201886859U CN 201120188685 U CN201120188685 U CN 201120188685U CN 202055842 U CN202055842 U CN 202055842U
- Authority
- CN
- China
- Prior art keywords
- anchor tube
- lock pin
- pin anchor
- locking anchor
- bow member
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 53
- 239000010959 steel Substances 0.000 title claims abstract description 53
- 239000011435 rock Substances 0.000 claims abstract description 17
- 238000005452 bending Methods 0.000 claims abstract description 6
- 238000004873 anchoring Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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- Lining And Supports For Tunnels (AREA)
Abstract
The utility model relates to a structure with connection of a steel arch frame and locking anchor pipes of a tunnel, aiming to achieve firmer connection of the steel arch frame and the locking anchor pipes and improve the ultimate bearing capacity. The structure comprises a steel arch frame (4), a locking anchor pipe (3), a locking anchor pipe (2) and a steel bar connection (1), and is characterized in that the locking anchor pipe (3) and the locking anchor pipe (2) are arranged on the two sides of the steel arch frame (4), the steel arch frame (4) is anchored deep in surrounding rocks through the locking anchor pipe (3) and the locking anchor pipe (2), the ends of the locking anchor pipe (3) and the locking anchor pipe (2) are welded on the steel bar connection (1), and the steel bar connection (1) is welded on the steel arch frame (4) and is made by bending a steel bar.
Description
One, technical field
The utility model patent relates to a kind of tunnel steel arch frame and the connected mode of locking the pin anchor tube in the tunnel support structure.
Two, background technology
Behind the tunnel cavern excavation, the equilibrium state of original country rock is broken, peripheral rock and vault have produced plastic strain and lax, in order to stop by the over-travel of the country rock after the disturbance and distortion, must adopt rational supporting and protection structure to bear the pressure of country rock.The steel bow member is an important ingredient in the Support System in Soft Rock Tunnels preliminary bracing structure, be again the part of permanent support simultaneously, the steel bow member itself has big rigidity and stronger supporting capacity, can be before sprayed mortar reach desired strength, effectively strata pressure and restrained deformation are born in the distortion and the displacement of control country rock.
Excavation back, tunnel if the steel bow member does not have firm base support, may make the steel bow member be easy to produce and skew in new stress field forming process because the load of tunnel peripheral rock discharges.Carry out firm being connected by performing lock foot anchoring stock with the steel bow member, make lock foot anchoring stock and steel bow member be linked to be an integral body, the steel bow member is anchored in the country rock deep, limit the displacement of steel bow member to a certain extent, give full play to the rigidity and the intensity of steel bow member, so that provide bigger supporting drag, prevent that country rock from producing harmful excessive deformation to the tunnel peripheral rock.
In the soft stratum,, usually replace the effect of lock foot anchoring stock with the bigger lock pin anchor tube of diameter for increasing frictional resistance and the normal pressure between country rock and the anchor pole.The main effect of lock pin anchor tube is the displacement that limits the steel bow member as much as possible, and the rigidity and the intensity of performance steel bow member make it bear the pressure that surrouding rock deformation causes as early as possible, guarantee the stability at tunnel initial stage.
The traditional lock pin anchor tube and the connected mode of steel bow member are: will lock the termination bending of pin anchor tube or the termination directly is welded on the steel bow member.The defective of this connected mode is: when bearing certain pressure from surrounding rock, when lock pin anchor tube and steel bow member itself also do not reach the bearing capacity limit, welding position, anchor tube termination has but surpassed weld strength and has destroyed, make the steel bow member lose the constraint of lock pin anchor tube, lose its due supporting capacity prematurely.
Three, summary of the invention
The utility model patent purpose provides the connected mode of a kind of novel tunnel steel arch frame and lock pin anchor tube, strengthens being connected between lock pin anchor tube and the steel bow member, thereby effectively brings into play the supporting capacity of steel bow member, raising safety of construction and stability of structure.
The technical scheme that realizes the utility model patent and adopt is:
A kind of tunnel steel arch frame and lock pin anchor tube connected mode, comprise steel bow member (4), lock pin anchor tube (3) and lock pin anchor tube (2), rebar connector (1), it is characterized in that: lock pin anchor tube (3) and lock pin anchor tube (2) are positioned at steel bow member (4) both sides, steel bow member (4) is anchored in the country rock deep by lock pin anchor tube (3) and lock pin anchor tube (2), lock pin anchor tube (3) and lock pin anchor tube (2) end are welded in rebar connector (1), rebar connector (1) is welded in steel bow member (4), and rebar connector (1) is formed by bar bending.
The advantage of comparing and having with existing structure: adopt this novel tunnel steel arch frame and the connected mode of locking the pin anchor tube, make the connection between steel bow member and the lock pin anchor tube more firm, ultimate bearing capacity is improved.
Four, description of drawings
The structural representation of Fig. 1 this patent (elevation)
The structural representation of Fig. 2 this patent (side view)
The structural representation of Fig. 3 this patent (plan view)
Five, the specific embodiment
The utility model patent is to change the connected mode of traditional lock pin anchor tube and steel bow member (be about to lock the termination bending of pin anchor tube or the termination is directly welded in the steel bow member) into a kind of novel tunnel steel arch frame and lock pin anchor tube connected mode.With reference to Fig. 1～3, in the present embodiment, comprise steel bow member (4), lock pin anchor tube (3) and lock pin anchor tube (2), rebar connector (1), it is characterized in that: lock pin anchor tube (3) and lock pin anchor tube (2) are positioned at steel bow member (4) both sides, steel bow member (4) is anchored in the country rock deep by lock pin anchor tube (3) and lock pin anchor tube (2), lock pin anchor tube (3) and lock pin anchor tube (2) end are welded in rebar connector (1), rebar connector (1) is welded in steel bow member (4), and rebar connector (1) is formed by bar bending.
Operating principle: the lock pin anchor tube that will be positioned at the steel bow member left and right sides is welded on the rebar connector, rebar connector is welded on the steel bow member, make the lock foot anchoring stock and the steel bow member of left and right sides stressed jointly, bonding area is bigger than traditional approach, connection is firm than conventional method, and ultimate bearing capacity is improved.
Claims (1)
1. tunnel steel arch frame and lock pin anchor tube connected mode, comprise steel bow member (4), lock pin anchor tube (3), lock pin anchor tube (2), rebar connector (1), it is characterized in that: lock pin anchor tube (3) and lock pin anchor tube (2) are positioned at steel bow member (4) both sides, steel bow member (4) is anchored in the country rock deep by lock pin anchor tube (3) and lock pin anchor tube (2), lock pin anchor tube (3) and lock pin anchor tube (2) end are welded in rebar connector (1), rebar connector (1) is welded in steel bow member (4), and rebar connector (1) is formed by bar bending.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201886859U CN202055842U (en) | 2011-05-25 | 2011-05-25 | Structure with connection with steel arch frame and locking anchor pipes of tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201886859U CN202055842U (en) | 2011-05-25 | 2011-05-25 | Structure with connection with steel arch frame and locking anchor pipes of tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202055842U true CN202055842U (en) | 2011-11-30 |
Family
ID=45015817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201886859U Expired - Lifetime CN202055842U (en) | 2011-05-25 | 2011-05-25 | Structure with connection with steel arch frame and locking anchor pipes of tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202055842U (en) |
Cited By (7)
| 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 |
| 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 |
| CN106703854A (en) * | 2017-01-05 | 2017-05-24 | 中铁工程设计咨询集团有限公司 | Supporting device used for tunnel primary supporting structure and construction method thereof |
| CN107191204A (en) * | 2017-04-04 | 2017-09-22 | 中铁二十二局哈尔滨铁路建设集团有限责任公司 | A kind of support locking method of tunnel steel arch frame lock foot anchor tube |
| CN107829757A (en) * | 2017-12-13 | 2018-03-23 | 中铁十局集团西北工程有限公司 | A kind of tunnel bracing members lock pin anchor tube positioner |
| CN111335924A (en) * | 2020-03-30 | 2020-06-26 | 中铁隧道集团二处有限公司 | Connecting structure between lock pin anchor pipe and steel frame and mounting method thereof |
| CN112647985A (en) * | 2020-12-28 | 2021-04-13 | 中国科学院武汉岩土力学研究所 | Combined supporting device of lock pin anchor pipe/anchor rod and steel arch frame and construction method |
-
2011
- 2011-05-25 CN CN2011201886859U patent/CN202055842U/en not_active Expired - Lifetime
Cited By (7)
| 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 |
| 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 |
| CN106703854A (en) * | 2017-01-05 | 2017-05-24 | 中铁工程设计咨询集团有限公司 | Supporting device used for tunnel primary supporting structure and construction method thereof |
| CN107191204A (en) * | 2017-04-04 | 2017-09-22 | 中铁二十二局哈尔滨铁路建设集团有限责任公司 | A kind of support locking method of tunnel steel arch frame lock foot anchor tube |
| CN107829757A (en) * | 2017-12-13 | 2018-03-23 | 中铁十局集团西北工程有限公司 | A kind of tunnel bracing members lock pin anchor tube positioner |
| CN111335924A (en) * | 2020-03-30 | 2020-06-26 | 中铁隧道集团二处有限公司 | Connecting structure between lock pin anchor pipe and steel frame and mounting method thereof |
| CN112647985A (en) * | 2020-12-28 | 2021-04-13 | 中国科学院武汉岩土力学研究所 | Combined supporting device of lock pin anchor pipe/anchor rod and steel arch frame and construction 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: 20130402 |
|
| 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: 20130402 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 Anning West Road, Anning District, Gansu, Lanzhou, China, No. 88 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 |
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 |
|
| CP03 | Change of name, title or address | ||
| DD01 | Delivery of document by public notice |
Addressee: Huabang Construction Investment Group Co., Ltd. Document name: Notification of Passing Examination on Formalities |
|
| DD01 | Delivery of document by public notice | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111130 |