CN202851013U - Connecting device between arch frame sections of tunnel steel arch frame - Google Patents
Connecting device between arch frame sections of tunnel steel arch frame Download PDFInfo
- Publication number
- CN202851013U CN202851013U CN201220485501.XU CN201220485501U CN202851013U CN 202851013 U CN202851013 U CN 202851013U CN 201220485501 U CN201220485501 U CN 201220485501U CN 202851013 U CN202851013 U CN 202851013U
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- CN
- China
- Prior art keywords
- arch frame
- tunnel
- steel arch
- bow member
- steel
- 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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- Lining And Supports For Tunnels (AREA)
Abstract
The utility model discloses a connecting device between arch frame sections of a tunnel steel arch frame, and belongs to a tunnel construction device. The connecting device between the arch frame sections of the tunnel steel arch frame is characterized in that the left end of each arch frame section and the right end of each arch frame are respectively and symmetrically welded with rectangular connecting plates, bolt holes are symmetrically formed in portions of four corners corresponding to each connecting plate, high-strength bolts are respectively installed inside corresponding bolt holes which are placed between connecting plates on each two adjacent arch frame sections, the high-strength bolts are screwed tightly and fixedly connected with the corresponding bolt holes, and the high-strength bolts are made of 45# steel. Therefore, the problems which exist in welding connection between each two adjacent arch frame sections are avoided, and particularly the connecting device can be in working outside tunnel, before each steel arch frame is installed, a worker enables each arch frame section which is machined to first conduct try-to-splicing, installing, and dismantling, so that the worker can find out quality problems of manufacture and installation of the steel arch frames in advance and resolves the problems in time, and the quality of tunnel supporting is improved.
Description
Technical field
The utility model belongs to the constructing tunnel device, especially relates to a kind of linkage of tunnel steel arch frame.
Background technology
At present, in the tunnel excavation construction, steel arch frame in the supporting and protection structure, generally all adopt H shaped steel or i iron to make, difference according to tunnel surrounding characteristic and excavation method, every Pin steel arch frame processes by designing requirement before installation, and carry out merogenesis, connection between each the bow member joint that processes assembles in the tunnel by the excavation sequencing, according to the tunnel support quality control requirement, the requirement of every Pin steel arch frame machining accuracy and installation accuracy is all very high, and adopts traditional welding method just can't satisfy the requirement of above-mentioned tunnel support quality control between each bow member joint, and welds and will carry out in the tunnel, construction space is little, inconvenient operation, both dangerous, welding quality also is difficult to control.
Summary of the invention
The purpose of this utility model is the linkage that proposes between a kind of bow member joint of tunnel steel arch frame, not only simple installation, safety, and flexible operation, workman easily grasp, and the time is short, work efficiency is high, and improves the supporting quality in tunnel.
The purpose of this utility model is achieved like this: the linkage between a kind of bow member joint of tunnel steel arch frame, each the bow member joint that comprises the steel arch frame, this bow member joint adopts H shaped steel or i iron to process at forming mill according to design at the construction field (site), it is characterized in that: be welded respectively symmetrically at the two ends, the left and right sides of each bow member joint the junction plate of rectangle and on each junction plate the corresponding position that is positioned at four jiaos offer symmetrically bolt hole, install respectively high-strength bolt in the corresponding bolt hole between the junction plate on the adjacent bow member joint in twos and tighten high-strength nut and be fixedly connected with, this high-strength bolt can adopt the steel high-strength bolt No. 45 at each; Like this, just avoided each in twos be weldingly connected existing problem of adjacent bow member joint, particularly can operation outside the tunnel, before every Pin steel arch frame is installed, each the bow member joint that processes is tried first assembly, dismounting, find in advance the processing of steel arch frame, the quality problems of installing and in time solution, improve the quality of tunnel support.
Linkage between the bow member of the tunnel steel arch frame that the utility model the proposes joint, not only simple installation, safety, flexible operation, workman easily grasp, and the time is short, work efficiency is high, and has improved the supporting quality in tunnel.
Linkage between the bow member joint of the tunnel steel arch frame that now in conjunction with the accompanying drawings and embodiments the utility model is proposed is described further.
Description of drawings
Fig. 1 is that the master of the linkage between the bow member joint of the tunnel steel arch frame that proposes of the utility model when using looks schematic diagram.
Fig. 2 is A enlarged diagram among Fig. 1.
Fig. 3 is the part 2 among Fig. 2: schematic diagram is looked on the left side of junction plate.
Among Fig. 1, Fig. 2, Fig. 3: 1, bow member joint 2, junction plate 3, high-strength bolt 4, high-strength nut.
The specific embodiment
From Fig. 1, Fig. 2, can find out among Fig. 3: the linkage between a kind of bow member joint of tunnel steel arch frame, each the bow member joint 1 that comprises the steel arch frame, this bow member joint 1 adopts H shaped steel or i iron to process at forming mill according to design at the construction field (site), it is characterized in that: be welded respectively symmetrically at the two ends, the left and right sides of each bow member joint 1 junction plate 2 of rectangle and on each junction plate 2 the corresponding position that is positioned at four jiaos offer symmetrically bolt hole, install respectively high-strength bolt 3 in the corresponding bolt hole between the junction plate 2 on the adjacent bow member joint 1 in twos and tighten high-strength nut 4 and be fixedly connected with, this high-strength bolt 3 can adopt the steel high-strength bolt No. 45 at each; Like this, just avoided each in twos be weldingly connected existing problem of adjacent bow member joint 1, particularly can operation outside the tunnel, before every Pin steel arch frame is installed, each the bow member joint 1 that processes is tried first assembly, dismounting, find in advance the processing of steel arch frame, the quality problems of installing and in time solution, improve the quality of tunnel support.
Claims (2)
1. the linkage between the bow member of a tunnel steel arch frame saves, each the bow member joint (1) that comprises the steel arch frame, it is characterized in that: the junction plate (2) of the rectangle that is welded respectively symmetrically at the two ends, the left and right sides of each bow member joint (1) also is positioned at four jiaos position in the upper correspondence of each junction plate (2) and offers symmetrically bolt hole, installs respectively high-strength bolt (3) in the corresponding bolt hole between the junction plate (2) on the adjacent bow member joint (1) in twos and tightens high-strength nut (4) and be fixedly connected with at each.
2. the linkage between the bow member of the tunnel steel arch frame according to claim 1 joint is characterized in that this high-strength bolt (3) adopts No. 45 steel high-strength bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220485501.XU CN202851013U (en) | 2012-09-22 | 2012-09-22 | Connecting device between arch frame sections of tunnel steel arch frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220485501.XU CN202851013U (en) | 2012-09-22 | 2012-09-22 | Connecting device between arch frame sections of tunnel steel arch frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202851013U true CN202851013U (en) | 2013-04-03 |
Family
ID=47982223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220485501.XU Expired - Lifetime CN202851013U (en) | 2012-09-22 | 2012-09-22 | Connecting device between arch frame sections of tunnel steel arch frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202851013U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107313790A (en) * | 2017-08-30 | 2017-11-03 | 中国电建集团中南勘测设计研究院有限公司 | A kind of symmetrical trouble hole supporting construction and its construction method |
-
2012
- 2012-09-22 CN CN201220485501.XU patent/CN202851013U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107313790A (en) * | 2017-08-30 | 2017-11-03 | 中国电建集团中南勘测设计研究院有限公司 | A kind of symmetrical trouble hole supporting construction and its construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130403 |