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Ring type sample preparation device for ring shear tests

An experimental, ring-type technology, applied in the preparation of test samples, measuring devices, sampling, etc., can solve the problems of sample abrasive roughness, sample leveling, and insufficient reliability of soil density and compaction control. , to achieve stable and uniform impact force, good compaction effect, and the effect of improving flatness

Active Publication Date: 2016-05-11
INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a ring-type sample preparation device for ring shear experiments, which solves the problem of rough sample abrasive tools in the prior art, resulting in serious reliability in sample leveling, soil density and compaction control. Insufficient technical issues

Method used

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  • Ring type sample preparation device for ring shear tests

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Embodiment Construction

[0040] The embodiment of the present application provides a ring-type sample preparation device for ring shear experiments, which solves the problem that the traditional method in the prior art is rough in the sample mold, which leads to the reliability of sample leveling, soil density and compaction control. The technical problem of severe lack of stability; the technical effect of improving the processing effect of the sample has been achieved.

[0041] In order to solve the above technical problems, the general idea of ​​the technical solution provided by the embodiment of the present application is as follows:

[0042] A ring type sample preparation device for ring shear experiments, comprising: a base, an inner cylinder, an outer cylinder, a support column and a compacting cylinder;

[0043] Two concentric circular grooves are set on the base, and the inner cylinder and the outer cylinder are respectively embedded in the two concentric circular grooves; the inner cylinder...

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Abstract

The invention belongs to the technical field of geotechnical engineering testing equipment, and discloses a ring type sample preparation device for ring shear tests. The device comprises a base, an inner barrel, an outer barrel, a supporting column and a compaction barrel. The base is provided with two concentric circular grooves. The inner barrel and the outer barrel are embedded into the two concentric circular grooves respectively. The inner barrel, the outer barrel and the top wall of the base form a sample groove. One end of the supporting column is perpendicularly fixed to the base. The compaction barrel is arranged over the sample groove and supported by the supporting column. The compaction barrel is of a barrel structure, and the barrel wall can be embedded into the sample groove. The compaction barrel is provided with a supporting lug and is movably connected with the supporting column through the supporting lug. On the condition that sample compaction and compression operation is executed, the compaction barrel slides along the supporting column to get close to or away from the sample groove, and the barrel wall is embedded into or disengaged from the sample groove. The sample preparation device is high in structure precision, and the sample leveling and compaction operation effect is good.

Description

technical field [0001] The invention relates to the technical field of geotechnical engineering test equipment, in particular to a ring type sample preparation device for ring shear experiments. Background technique [0002] As one of the important parameters to describe geotechnical engineering materials, the residual strength characterizes the minimum shear strength when a large shear displacement is reached at a slow shear rate, and once the sliding surface is formed, the strength of the material is determined by its residual strength, so for The study of residual strength is an important part of the study of the properties of geotechnical engineering materials. Because of its constant shear surface and continuous displacement, the ring shear instrument has been widely recognized and applied in the measurement of soil shear strength and residual shear parameters. [0003] At present, the equipment technology of the ring shear instrument is relatively mature, but there is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/28
CPCG01N1/28G01N1/286
Inventor 孙钱程李邵军程远谭双
Owner INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI
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