Fabricated semi-active connection tunnel suitable for passing through fault fracture zone and method
A movable connection and assembly technology, applied in tunnels, tunnel linings, shaft equipment, etc., can solve the problems of consuming a lot of manpower, material resources and time costs, limited ability to resist fault dislocation, and inability to ensure safe operation of tunnels, etc., to achieve increased The overall strength of the structure, the effect of reducing the possibility, saving manpower, material resources and time costs
Active Publication Date: 2019-08-23
SHANDONG UNIV
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Problems solved by technology
[0004] The inventors found that so far, although some tunnels have adopted related measures such as isolated energy dissipation design, hinged design, overbreak design and other related measures to construct tunnels across active fault zones, due to the relatively simple way, the ability to resist fault dislocation is limited and cannot To ensure the safe operation of the tunnel under the condition of fault activity, the task of repairing the tunnel after the fault activity is arduous, and it often takes a lot of manpower, material resources and time to repair it, which affects the normal passage of the tunnel
Method used
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Embodiment 1
[0047] like figure 1 As shown, a prefabricated semi-movable connection tunnel suitable for crossing the fault fracture zone includes a grouting reinforcement area 2, a prefabricated tunnel 11, a wedge-shaped connector 8, a segment covered with a rubber cushion 10, an elastic deformation part 18, Automatic reset key 9; the grouting reinforcement zone 2 uses high polymer slurry to hydraulically inject around the excavation surface of the fault fracture zone to reinforce the surrounding rock 1 of the fault fracture zone; the grouting reinforcement zone is opened in the fault fracture zone in advance The grouting holes are evenly arranged around the excavation section, and the deep, middle and shallow layers are injected sequentially to ensure that the volume of the grouting reinforcement area is sufficient. The grouting reinforcement area should have the effects of consolidating the surrounding rock, improving the strength of the surrounding rock, and having a certain effect of s...
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The invention discloses a fabricated semi-active connection tunnel suitable for passing through a fault fracture zone and a method. The fabricated semi-active connection tunnel suitable for passing through the fault fracture zone comprises a grouting reinforcement area, a fabricated tunnel duct piece, wedge-shaped connection pieces, a rubber spacer, elastic deformation pieces and automatic resetting keys; high polymer slurry is used for injecting into an excavation area of the fault fracture zone; the fabricated tunnel duct piece comprises a plurality segments of duct piece bodies arranged inthe longitudinal direction of a tunnel, and the adjacent duct piece bodies are connected through the elastic deformation pieces and the automatic resetting keys; each segment of duct pieces comprisesa plurality of duct piece bodies, the piece bodies are connected through the wedge-shaped connection pieces to form a structure with the same cross-sectional shape of the tunnel, and the outer surfaces of each duct piece body are covered with the rubber spacer; and the wedge-shaped connection pieces comprise duct piece wedge-shaped grooves, duct piece wedge-shaped tenons, normal-temperature shapememory alloy layers and wedge-shaped connection piece rubber sealing layers.
Description
technical field [0001] The invention relates to a prefabricated semi-movable connection tunnel suitable for crossing a fault fracture zone and a construction method. Background technique [0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] Controlled by the earth's plate tectonic movement, the Qinghai-Tibet Plateau is constantly uplifting. This has led to very frequent fault activities in the junction of the first and second steps in my country, which has created huge problems for the construction of my country's infrastructure. Under this geodynamic background and geological structure framework, in the process of infrastructure construction in the western region, it is inevitable to encounter the problem of building tunnels near active faults and high-intensity earthquake areas. There are tens of thousands of railway tunnels in my country, and nearly a thousand of them a...
Claims
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Patent Timeline
Login to View More IPC IPC(8): E21D11/15E21D11/18E21D11/22E21D11/10E21D11/38
CPCE21D11/10E21D11/105E21D11/15E21D11/152E21D11/18E21D11/22E21D11/385
Inventor 薛翊国傅康邱道宏巩立亮赵志华崔久华张开孔凡猛
Owner SHANDONG UNIV