A model test device for simulating the dynamic response of submarine tunnels under wave loads
A model test device and subsea tunnel technology, applied in fluid dynamics test, teaching model, measurement device, etc., can solve the problems of safety, high construction cost, and unconsidered impact in the project, and achieve low cost, convenient experiment implementation, The effect of reducing costs
Active Publication Date: 2019-02-19
ZHEJIANG UNIV
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Problems solved by technology
However, in the design of my country's existing coastal engineering, for the sake of design convenience, only the loads directly transmitted by waves to the seabed and buildings (structures) are considered, and the pore water pressure in the seabed under the action of waves is not considered on the engineering forces and loads. deformation effect
This makes the subsea tunnel design more conservative than the actual situation, which makes the project construction cost high, and may also cause safety hazards in the project because of ignoring the effect of pore pressure accumulation
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[0026] The present invention will be further described below in conjunction with the accompanying drawings and implementation examples.
[0027] Such as Figure 8 As shown, the present invention simulates the dynamic response model test device of the subsea tunnel under the action of wave load, including three parts: the model box, the tunnel 9 and its support system 10, and the measurement system.
[0028] Such as figure 1 , 2As shown in and 3, the model box is composed of a model box bottom plate 1, an angle steel 2, a rotor B2-1, a bolt B2-2, a left rotating plate 3 of the model box, a rotor A3-1, a bolt A3-2, tempered glass 5, The model box back panel 6, the model box right side panel 7 and the plexiglass plate 8 are composed; the model box bottom plate 1 is a 1 cm thick steel plate, and 4 half-centimeter thick angle steels 2 are spot welded together to form the frame of the entire model box ; The model box right side plate 7 and the model box back panel 6 are all made ...
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The invention discloses a dynamic response model test device for the submarine tunnel under effect of a simulated wave load. The device comprises a model box, a tunnel, a supporting system and a measuring system. The model box comprises a model box bottom plate, angle steel, a model box right side plate, a model box left rotating plate, a model box back panel, tempered glass and an organic glass plate. The supporting system comprises a supporting fork, a supporting tube and a supporting base. The measuring system comprises a strain gauge, a water inflow measuring tank and a piezometer. The strain gauge is adhered on the outer surface of the tunnel and is used for measuring the deformation of the tunnel. The water inflow measuring tank is used for measuring the water inflow of the tunnel. The piezometer is fixed on a sensor fixing bracket and is used for measuring the water pressures of seabed pores. According to the technical scheme of the invention, the water pressure responses of seabed pores around the submarine tunnel, at different buried depths, different excavating radiuses and different lining thicknesses of the tunnel, can be simulated. Meanwhile, the device provides an effective test data support for the research on the submarine tunnel dynamic response problem under the effect of the wave load, and facilitates the theoretical analysis.
Description
technical field [0001] The invention relates to a test device for measuring pore water pressure, tunnel strain and tunnel water inflow in submarine tunnel engineering, especially a model test device for the response of seabed soil pressure and pore water pressure around the submarine tunnel with changes in wave elements, which can be used for Measure the pore water pressure of the seabed around the subsea tunnel under different tunnel embedment depths, tunnel excavation radii, and lining thicknesses. Background technique [0002] With the development of coastal cities, the connections within cities and between different cities are becoming more and more frequent, and the original land transportation is far from being able to meet social needs. Compared with cross-sea bridges, the construction of subsea tunnels has much less impact on shipping and marine environment, and is not affected by weather conditions. The subsea tunnels that have been completed and opened to traffic ...
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Login to View More IPC IPC(8): G01M10/00G09B25/04
CPCG01M10/00G09B25/04
Inventor 应宏伟朱成伟沈华伟许鼎业梁文鹏王霄章丽莎王小刚
Owner ZHEJIANG UNIV