A Centrifugal Model Test Device and Test Method for Simulating Scouring of Reinforced Soil Retaining Wall Toe
A technology of centrifugal model test and model test, which is applied in the test of foundation structure, hydraulic model, protection device, etc., can solve the problems of inability to realize soil erosion of foundation, deformation and damage of retaining wall, etc., and achieves convenient control, low cost, Reliable effect
Active Publication Date: 2021-09-03
TONGJI UNIV
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Problems solved by technology
[0005] The purpose of the present invention is to provide a centrifugal model test device and test method for simulating the scouring of the toe of the reinforced soil retaining wall, so as to solve the problem that the existing centrifugal model test device cannot realize the centrifugal test simulation of the erosion of the foundation soil, and can It is more economical, convenient, reliable, and intelligent to study the evolution of the mechanical characteristics of the reinforced soil retaining wall under the influence of water erosion in the laboratory, as well as the deformation and failure process of the retaining wall
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Embodiment 1
[0059] This embodiment provides a centrifugal model test device and test method for simulating the erosion of the toe of a reinforced earth retaining wall. The main structure is as follows: figure 1 As shown, it mainly includes reinforced soil retaining wall, sand suction mechanism and computer control equipment 14. The reinforced earth retaining wall is built inside the model test box 5 with an open top, and is composed of filling soil 1, reinforcement material 2, wall module 3 and foundation soil 4; , sand collection box 11, hard pipe 7, hose 9, vertical slide rail 10, horizontal slide rail 8 and sand suction port 6; computer control equipment 14 is connected with horizontal slide rail 8 and vertical The slide rails 10 are connected. The sand-absorbing port 6 installed at the end of the hard pipe 7 can move horizontally and vertically through the sand-absorbing mechanism controlled by the computer control device 14; by using the suction force generated by the exhaust fan 12...
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The invention relates to a centrifugal model test device and test method for simulating the erosion of the toe of a reinforced soil retaining wall. The test device comprises: a model test box; a reinforced soil retaining wall model: including foundation soil laid at the bottom of the model test box , the reinforced soil retaining wall arranged in the middle of the foundation soil, and the filling soil compacted and filled in the cavity surrounded by one side of the reinforced soil retaining wall and the side of the model test box, the reinforced soil retaining wall is composed of It is composed of a horizontal base buried in the foundation soil, a wall module laid on the horizontal base layer by layer, and several layers of reinforcement laid horizontally in the filling soil from top to bottom and connected with the wall module; sand mechanism; high-speed camera. Compared with the prior art, the present invention can be more economical, convenient, reliable, and intelligent in the laboratory to study the evolution of the force characteristics of the reinforcement of the reinforced soil retaining wall under the influence of water flow erosion, and the deformation and failure of the retaining wall process.
Description
technical field [0001] The invention belongs to the technical field of geotechnical engineering and geological engineering tests, and relates to a centrifugal model test device and a test method for simulating the erosion of the toe of a reinforced earth retaining wall. Background technique [0002] In the 1960s, French engineer Henri Vidal proposed the concept of "reinforced soil", and the reinforced soil retaining wall came into being. Compared with the traditional gravity retaining wall, cantilever retaining wall and buttress retaining wall, the reinforced earth retaining wall has the advantages of low cost, simple construction, beautiful appearance, high stability and good seismic performance. It has developed rapidly and has been widely used in engineering construction in the fields of construction, transportation, water conservancy and land resources. Reinforced soil retaining wall is a good flexible structure, which has a certain degree of deformation resistance unde...
Claims
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IPC IPC(8): E02D33/00E02D31/06E02D29/02E02B1/02
CPCE02B1/02E02D29/0241E02D31/06E02D33/00E02D2600/10
Inventor 陈建峰杜长城郭小鹏姚宇昂
Owner TONGJI UNIV
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