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Laminar shear box device for supergravity-field vibration table test

A technology of shaking table test and layered shear box, which is applied in the direction of applying repeated force/pulsation force to test the strength of materials, measuring devices, instruments, etc., and can solve the problems of difficult to reflect soil, application limitations, and difficulty in controlling the saturation of simulated soil samples , Consolidation, drainage process and other issues to achieve the effect of preventing the sample from being thrown off, reducing the boundary effect and maintaining water tightness

Inactive Publication Date: 2012-01-18
ZHEJIANG UNIV
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  • Abstract
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Problems solved by technology

However, the current domestic layered shear model box test is difficult to reflect the behavior of soil under vibration, and it is difficult to control the saturation, consolidation, and drainage processes of simulated soil samples, so there are relatively large limitations in application.

Method used

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  • Laminar shear box device for supergravity-field vibration table test
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  • Laminar shear box device for supergravity-field vibration table test

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Embodiment Construction

[0024] The specific implementation of the present invention is described in further detail below in conjunction with accompanying drawing:

[0025] like figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Image 6 and Figure 7 As shown, the bottom plate 3 of the present invention is provided with a drainage system 9, and the drainage system 9 is respectively connected with the drain valves around the bottom plate; The cutting frame 1 is superimposed, and the 20th layer is fixed on the bottom plate 3. The long sides of every two rectangular aluminum alloy cutting frames 1 are superimposed and connected by a plurality of rollers perpendicular to the long sides. The cutting box Displacement sensor fixtures 14, two guide columns 15 and static force columns 16 fixed on the bottom plate 3 and top plate 2 are symmetrically arranged in sequence on both sides of the long sides, and the middle parts of the short sides of the shear box are symmetrically arranged. The latera...

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Abstract

The invention discloses a laminar shear box device for a supergravity-field vibration table test. A main body is a shear box formed by laminating 20 layers of rectangular aluminum alloy frames of equal thicknesses; the layers are connected with one another through a rolling shaft; horizontal displacement sensors are arranged on the upper 19 layers through bolts; the periphery of a shear frame is provided with a rigid support frame, which comprises a displacement sensor fixture, a guide post and a static post; the guide post and a top plate are provided with frame guide wheels; a rubber film is arranged on the inner side of the shear box; a drainage system is arranged in a bottom plate of the shear box; and the bottom plate is fixed on a vibration table during testing. In the invention, the behavior of a semi-infinite site soil body can be simulated through a model of a definite size. The laminar shear box device has the characteristics of simple structure and convenience for installing and applying.

Description

technical field [0001] The invention relates to a civil engineering shearing device, in particular to a layered shearing box device used for a vibration table test in a supergravity field. Background technique [0002] In reality, the foundation soil has no boundary, but in the shaking table test, only a limited size model box can be used to hold the model soil. In order to eliminate the artificial boundary effect, the model box is designed to be capable of unidirectional layered shear deformation under earthquake action, and such a model box is called a layered shear box. However, the current domestic layered shear model box test is difficult to reflect the behavior of soil under vibration, and it is difficult to control the saturation, consolidation, and drainage processes of simulated soil samples, so there are relatively large limitations in application. Contents of the invention [0003] In order to overcome the deficiencies in the background technology, the purpose ...

Claims

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Application Information

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IPC IPC(8): G01N3/02G01N3/32
Inventor 周燕国梁甜凌道盛陈云敏孔令刚蒋建群黄锦舒
Owner ZHEJIANG UNIV
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