Sample preparation die for large coarse-grained soil triaxial test

A technology of triaxial test and sample preparation mold, which is applied in the preparation of test samples, sampling, measuring devices, etc. It can solve the problems of easily damaged sample shape and complicated operation, so as to avoid the fracture and deformation of the sample and simplify the sample preparation. The effect of operating procedures

Pending Publication Date: 2020-05-12
SHIHEZI UNIVERSITY
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Problems solved by technology

[0005] In view of the deficiencies of the above test equipment, the present invention proposes a sample preparation mold for triaxial test of large-scale coarse-grained soil, which can consider the looseness of coarse-grained soil, and solve the problem of easy damage to the shape of the sample during the disassembly of the sample cylinder. operationally complex issues

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  • Sample preparation die for large coarse-grained soil triaxial test
  • Sample preparation die for large coarse-grained soil triaxial test
  • Sample preparation die for large coarse-grained soil triaxial test

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Embodiment Construction

[0021] The specific implementation manner of the present invention will be described below in conjunction with the accompanying drawings.

[0022] Such as figure 1 , 2 , 3, and 4, a sample preparation mold for triaxial testing of large-scale coarse-grained soil, including mold annular bottom plate 5, mold top limit collar 1, middle collar 4, two semicircle with clamping table Cylindrical steel plate 2, and two fixed limit screw rods 3, characterized in that the two semi-cylindrical steel plates 2 have the same size and shape, and they are closed to form a cylindrical sample tube. The semi-cylindrical steel plate 2 has two external Protruding card platforms 7 and 8, the card platform 7 in the middle is used to clamp the middle collar 4, the card platform 8 at the bottom is used to clamp the mold annular bottom plate 5, and the inside of the top of the semi-cylindrical steel plate 2 A bayonet socket is formed by cutting for installing the limit collar 1 on the top of the mold....

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Abstract

The invention relates to a sample preparation die for a large coarse-grained soil triaxial test. The die comprises a die annular bottom plate, a die top limiting lantern ring, a middle lantern ring, two semi-cylindrical steel plates with clamping tables, and two fixed limiting screw rods, and is characterized in that two semi-cylindrical steel plates with clamping tables are folded to form a sample cylinder; the sample cylinder is mounted above the die annular bottom plate; the die top limiting lantern ring is mounted at the top of the sample cylinder; the fixed limiting screw rod is used fortensioning the die annular bottom plate and the die top limiting lantern ring; and the middle lantern ring is installed outside the semi-cylindrical steel plate and clamped on the semi-cylindrical steel plate clamping table; and the middle lantern ring is provided with two screw rods used for clamping the two semi-cylindrical steel plates. Thus, the die disclosed in the invention is used for preparing a sample for triaxial test of large coarse granular materials.

Description

technical field [0001] The invention relates to the technical field of geotechnical engineering geotechnical tests, in particular to a sample preparation mold for triaxial tests of large-scale coarse-grained soils, which is suitable for preparing samples for triaxial tests of large-scale bulk coarse-grained materials. Background technique [0002] Soil triaxial test is an important rock and soil test to study various indicators such as soil shear strength and internal friction angle based on the Coulomb-Moore strength theory. The commonly used triaxial test equipment is mainly rock triaxial test machine, and large-scale Coarse-grained soil triaxial testing machine is mainly used to study various strength indexes of loose coarse-grained soil in roadbed engineering. Compared with the rock triaxial test, the large-scale coarse-grained soil triaxial test is suitable for coarse-grained soil with a maximum particle size of 75mm, which is usually used as roadbed filler, so the samp...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/36
CPCG01N1/36G01N2001/366
Inventor 程建军王瑞祁延录王梦田丁泊淞
Owner SHIHEZI UNIVERSITY
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