Rectangular or special-shaped shield tunnel duct piece structure
A shield tunnel segment and special-shaped technology, which is applied in tunnels, tunnel linings, shaft linings, etc., can solve the problems of complex stress on the segment structure, many types of molds, and unstable structures, so as to solve the problems of mechanized construction and reduce the Risk factors, the effect of reducing production costs
Pending Publication Date: 2018-07-24
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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Problems solved by technology
[0007] It is mainly aimed at the construction of subterranean space tunnel segments with rectangular, quasi-rectangular or special-shaped sections, which are difficult to divide into blocks, difficult to deal with joint waterproofing, complex force and unstable structure of the segment after division, and large amount of wedges in curved tunnels that lead to mold failure. A new type of shield tunnel segment structure proposed by various types of problems
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[0027] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0028] Such as Figure 1~5 As shown, a rectangular or special-shaped shield tunnel segment structure is provided, and the rectangular or special-shaped shield tunnel segment structure includes a plurality of segment nodes 1 connected end to end and forming a rectangular or special-shaped shield closed tunnel section; The front and rear ends of each segment node are provided with connecting plates 2 that match the segment nodes, and the adjacent segment nodes are connected through high-stress connection pairs 3 or low-stress connection pairs 4. connection, each segment node is filled with concrete structural blocks 5 .
[0029] A partition plate 8 matching the radian of the segment node is provided at a middle position inside the segment node.
[0030] The upper end or / and the lower end of the partition plate inside each segment node are resp...
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The invention belongs to the technical field of underground engineering construction, and particularly relates to a rectangular or special-shaped shield tunnel duct piece structure. The invention aimsat providing a novel shield tunnel duct piece structure, which effectively solves the technical problems that the underground space tunnel duct piece construction blocking is difficult; the joint waterproof treatment is difficult; the stress of the blocked duct piece structure is complicated; the structure is unstable. The rectangular or special-shaped shield tunnel duct piece structure comprisesa plurality of duct piece nodes which are in head-to-tail connection and form a rectangular or special-shaped shield sealed tunnel cross section; each of the front end and the back end of each duct piece mode is provided with a connecting plate mutually matched with the duct piece node; the adjacent duct piece nodes are subjected to adjacent duct piece connection through a high-stress connectionpair or a low-stress connection pair; a concrete structure block is filled inside each duct piece node. The shield tunnel duct piece provided by the invention effectively solves the problems of many blocks, many joints, joint water leakage and the like of a conventional duct piece structure; the risk factor of ultra-large cross section construction is greatly reduced.
Description
technical field [0001] The invention belongs to the technical field of underground engineering construction; in particular, it relates to a segment structure of a rectangular or special-shaped shield tunnel. Background technique [0002] At present, with the in-depth development of shield tunneling technology, the cross-section of shield tunnels is gradually changing from the traditional circular cross-section to similar rectangular and rectangular cross-sectional structures; There are many disadvantages in the use of concrete structural segments in rectangular and quasi-rectangular tunnels for structural construction and laying: [0003] 1. The stress state of concrete structural segments set in rectangular or quasi-rectangular tunnels is different, and the quality and reliability are poor; because the concrete structural segments set in rectangular or quasi-rectangular section structures are bending members, they are more flexible than circular sections. As far as the ben...
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IPC IPC(8): E21D11/08E21D11/38
CPCE21D11/08E21D11/083E21D11/385Y02E10/20
Inventor 高毅程鹏于少辉李洋罗雨田苏明浩李鹏王宁冯超元罗长明
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD