Test device for simulating near-sea foundation pit dynamic response under tide load effect
A dynamic response and test device technology, applied in hydraulic model, foundation structure engineering, field foundation soil survey, etc., can solve the problem of not considering the cyclical change of water level, only considering the effect of the highest water level, etc., to achieve the convenience of making holes , Reduce the experimental cost and ensure the effect of absolute rigidity
Active Publication Date: 2018-06-29
ZHEJIANG UNIV
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Problems solved by technology
Existing designs often only consider the effect of the highest water level, but do not consider the impact of water level cyclical changes
Therefore, whether the traditional design is safe or dangerous is not conclusive.
Method used
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[0039] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.
[0040] Such as figure 1 As shown, the present invention provides a test device for simulating the dynamic response of seaside foundation pits under the action of tidal loads, including a constant water level system, a crank slider system, a transmission system, a measurement system and a model box.
[0041] Such as figure 2, 3 As shown, the constant water level system includes a constant water level water tank 1, an inlet pipe valve 2, an inlet pipe 3, an outlet pipe valve 4, an outlet pipe 5, a connecting pipe valve 6, a connecting pipe 7 and a liner A8. The constant water level water tank 1 is a topless water tank formed by bonding 5 square plexiglass plates with AB glue; the top of the first side of the constant water level water tank 1 has a hole for installing the water inlet valve 2; the water inlet pipe The valve 2 is connected to t...
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The invention discloses a test device for simulating the near-sea foundation pit dynamic response under a tide load effect. The test device for simulating the near-sea foundation pit dynamic responseunder the tide load effect comprises a water level constant system, a crank slide rod system, a driving system, a measuring system and a model box. The water level constant system comprises a constant-water-level water tank, a valve, a liner plate A and the like. The crank slide rod system comprises a vertical rod, a liner plate B, a sliding chamber, a crank rod and the like. The model box comprises a model box frame, a retaining wall, a bulwark and the like. The measuring system comprises a miniature earth pressure cell and a hole pressure sensor. The miniature earth pressure cell is embeddedonto the retaining wall; the bulwark is arranged on the driving side of a foundation pit; and a sensor fixing support is placed on the bottom of the model box. The device provided by the invention can be used for simulating the responses of soil pressures of the driving side and the driven side of the foundation pit and a pore water pressure under the effects of different foundation pit widths, retaining wall depths in soil, distances between the bulwark and the retaining wall, and different tide factors. The test device for simulating the near-sea foundation pit dynamic response under the tide load effect provided by the invention can provide an effective test data support for the research of the near-sea foundation pit dynamic response problem under the tide load effect, and provides assistance for theoretical analysis.
Description
technical field [0001] The invention relates to a test device for measuring earth pressure and pore water pressure in marine foundation pit engineering, in particular to a model test device for the response of active and passive side soil pressure and pore water pressure of foundation pits near the sea with changes in tidal elements, which can be used for measurement The values of active and passive lateral soil pressure and pore water pressure of foundation pits near the sea under different excavation widths, different excavation depths, different depths of retaining walls, and different distances between retaining walls and breakwaters. Background technique [0002] With the development of coastal cities, more and more high-rise buildings, underground space development projects, cross-sea team roads, cross-sea bridges and other major projects have been put into construction, followed by the development and construction of a large number of deep and large foundation pits a...
Claims
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IPC IPC(8): E02B1/02E02D1/00
CPCE02B1/02E02D1/00
Inventor 应宏伟朱成伟王霄王迪沈华伟许鼎业章丽莎
Owner ZHEJIANG UNIV