Bidirectional laminated shear soil box for vibration table test and use method

Abstract

The invention belongs to the technical field of mechanical test equipment, and relates to a bidirectional laminated shear soil box for a vibration table test and a use method, the bidirectional laminated shear soil box comprises a laminated frame box body, a rolling sliding mechanism, a limiting sliding mechanism and a telescopic mechanism; the laminated frame box body comprises a supporting frame and a multi-layer bidirectional U-shaped frame arranged above the supporting frame; the supporting frame and the two-way U-shaped frames are connected through rolling and sliding mechanisms, and every two adjacent layers of two-way U-shaped frames are connected through rolling and sliding mechanisms. A plurality of rolling and sliding mechanisms are arranged; the telescopic mechanism is arranged on the bidirectional U-shaped frame; and the limiting sliding mechanisms are respectively arranged on the side walls of the laminated frame box body. The influence of the boundary effect of the soil box can be reduced, the experimental error is small, the box body is continuous, and the effect generated by non-uniform seismic excitation can be well achieved; and the structure is simple and manufacturing and mounting are convenient.

Description

Technical field[0001]The present invention belongs to the technical field of mechanical testing equipment, involving a bidirectional laminate shear soil or use method for a vibrating table test.Background technique[0002]At present, the commonly used Soil Box has roughly three, they are rigid boxes, cylindrical flexible boxes and laminated shear boxes, and their common features are connected to the vibrating table, and are mostly a monomer model box, different It is different from the effect of soil on the lateral boundary. In the actual vibrating table test, the model box is a shear box in the simulated soil shear deformation, and the shearing box is usually laminated by a multi-layer steel frame, and the adjacent two-layer steel frame can be relatively smooth. shift. Although the existing shear box can simulate the shear deformation of the earth, the existing soil shear box exists in the process of use: (1) The boundary effect of the fluctuation reflection of the boundary is diffic...

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Problems solved by technology

Although the existing shear box can simulate the shear deformation of the soil, the following problems exist in the use of the existing soil shear box: (1) The boundary effect caused by the large wave reflection of the boundary makes it difficult to reflect The actual seismic response of the soil layer; (2) Due to its integrity, the single model box is not ideal for the realization of non-uniform seismic excitation

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