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Dry-wet cycle test device with oblique shear test function

A dry-wet cycle and shear test technology, which is applied in the direction of applying stable shear force to test the strength of materials, measurement devices, and preparation of test samples, which can solve the problem of single detection direction and insufficient comprehensive data of shear strength, etc. problem, achieve the effect of avoiding interference, controlling error and speeding up the test process

Pending Publication Date: 2022-05-27
WENZHOU GUANGCHENG CONSTR ENG CO LTD
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Problems solved by technology

Soil shear strength refers to the ultimate strength of soil against shear failure, including internal friction and internal friction angle (cohesive soil also includes its cohesion C); the determination method of soil shear strength includes triaxial shear test , direct shear test, and unconfined compression test; at present, most of the direct shear tests are used to test the shear strength of soil, which only has a single detection direction, and there are few tests for oblique shear at different angles. Data on shear strength are not comprehensive enough

Method used

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  • Dry-wet cycle test device with oblique shear test function
  • Dry-wet cycle test device with oblique shear test function
  • Dry-wet cycle test device with oblique shear test function

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Embodiment Construction

[0028] To further elaborate the technical means and efficacy of the present invention to achieve the intended object of invention, the following combined with the accompanying drawings and preferred embodiments, the specific embodiments, structure, features and efficacy of the present invention, as described in detail as follows.

[0029] Reference Figures 1 through 6 As shown, a wet and dry cycle test apparatus having an oblique shear test function, comprising a test bench 1, the test bench 1 is provided with a through hole 11 in the middle, the through hole 11 has a second platform 2 below, the second platform 2 is provided with a weigher 3, the through hole 11 is provided above the shear box assembly 4, the shear box assembly 4 the bottom area is greater than the through hole 11 area, the weigher 3 rises through the through hole 11 to the shear box assembly 4 and the shear box assembly containing soil samples 4 are weighed, The test bench 1 is provided with a vertical pressure ...

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Abstract

The invention relates to a dry-wet cycle test device with an oblique shear test function, which comprises a test bed, a through hole is formed in the middle of the test bed, a second platform is arranged below the through hole, a weighing device is arranged on the second platform, a shear box assembly is arranged above the through hole, and a plurality of shear box assemblies are arranged on the shear box assembly. The area of the bottom surface of the shear box assembly is larger than that of the through hole, and the weighing device ascends to penetrate through the through hole to weigh the shear box assembly and the shear box assembly containing the soil sample; a vertical pressure applying mechanism, a tangential force driving mechanism, a fixed supporting mechanism and a dry-wet circulating assembly are arranged on the test bed, and the vertical pressure applying mechanism, the tangential force driving mechanism, the fixed supporting mechanism and the dry-wet circulating assembly act on the shear box assembly. The soil sample can be subjected to oblique shear tests at different angles, shear in different directions and the shear strength of the soil sample can be detected, and more comprehensive data support is provided for the strength of the soil sample.

Description

Technical field [0001] The present invention relates to a dry and wet cycle test apparatus having oblique shear. Background [0002] The strength index of soil is an important indicator to determine the bearing capacity of soil, so accurately determining the shear strength index of soil is of great significance for the design and construction of construction projects. Soil shear strength refers to the ultimate strength of the soil resistance to shear failure, including internal friction and internal friction angle (clay also includes its cohesion C); the determination method of the shear strength of the soil includes triaxial shear test, straight shear test, no side limit compression test; at present, most of the use of straight shear test to test the shear strength of the soil, only has a single detection direction, rarely tests the oblique shearing of different angles, and the data on the shear strength of the soil is not comprehensive enough. Contents of the Invention [0003...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/24G01N3/02G01N1/28G01N1/30
CPCG01N3/24G01N3/02G01N1/28G01N1/30G01N2203/0003G01N2203/0025G01N2203/0236
Inventor 李丹徐才锋徐怀送董建宁彭雨雨
Owner WENZHOU GUANGCHENG CONSTR ENG CO LTD
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