A dynamic and static triaxial test device that can eliminate the influence of membrane embedding effect

A triaxial test, dynamic and static technology, applied in the direction of measuring devices, testing material strength by applying stable tension/pressure, instruments, etc.
CN111579377BActive Publication Date: 2021-05-07DALIAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
DALIAN UNIV OF TECH
Publication Date
2021-05-07

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Abstract

The invention discloses a dynamic and static triaxial test device capable of eliminating the influence of membrane embedding effect, and belongs to the technical field of geotechnical tests. The dynamic and static triaxial test device can perform non-contact full-field measurement of the film embedding amount of the triaxial sample of sand and gravel. During the consolidation process, the image acquisition device collects images before and after deformation of the triaxial sample of sand and gravel. After the processing software is processed, the skeleton volume deformation of the triaxial sample of the gravel material is obtained, and then combined with the high-precision electronic balance volume deformation measuring device to measure the total volume deformation of the triaxial sample of the gravel material, the difference between the two is the triaxial sample of the gravel material Membrane embedment as a function of effective confining pressure. The measurement process of the film embedding amount will not cause any interference to the triaxial sample of the gravel material, and the measurement process is completely coupled with the consolidation process. The test device is accurate and efficient, and the measurement device is simple and easy to operate.
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Description

technical field

[0001] The invention belongs to the technical field of geotechnical tests, and in particular relates to a dynamic and static triaxial test device capable of eliminating the influence of membrane embedding effects. Background technique

[0002] Sand and gravel are widely used in the actual construction of geotechnical structures because they exist in large quantities in the natural environment and are easy to obtain. They are often used as cushions, filter materials and transition materials for earth-rock dams. They are also used in high-speed railway foundations, artificial reclamation and nuclear power plants. Breakwaters and other major projects are under construction.

[0003] More and more attention has been paid to the experimental research on the mechanical properties of sand and gravel materials. At present, the indoor test research on sand and gravel materials mainly relies on triaxial test equipment. The structure of the triaxial test equipment is re...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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