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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.

Active Publication Date: 2021-05-07
DALIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the third type of method has high accuracy and does not interfere with the subsequent test process, and the test results are highly reliable, but the accuracy of this type of method is based on the accuracy of the measurement of the amount of membrane embedding

Method used

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

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Embodiment Construction

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in detail and clearly below in conjunction with the drawings in the embodiments of the present invention. The described specific embodiments are only some of the many embodiments of the present invention, and do not represent all the embodiments. Generally, the components of the embodiments of the present invention shown in the drawings can be installed and implemented in different combinations. Based on the specific embodiments described in the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0039] In the specific embodiment of the present invention, it should be noted that in the following drawings, some components have the same functi...

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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.

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

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/12G01N3/02G01N3/06
CPCG01N3/02G01N3/06G01N3/066G01N3/068G01N3/12G01N2203/0019G01N2203/0048G01N2203/023G01N2203/0256G01N2203/0617G01N2203/0647G01N2203/0676G01N2203/0682
Inventor 庞锐季晓檬周扬徐斌周晨光
Owner DALIAN UNIV OF TECH
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