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Soil body shearing device for moraine dynamic performance test

A technology of dynamic performance and shearing device, which is applied in measuring device, using stable shearing force to test material strength and strength characteristics, etc., can solve the problem of inconvenient dynamic performance testing of moraine objects.

Pending Publication Date: 2022-05-06
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a soil shearing device for testing the dynamic performance of moraines, so as to solve the existing problem that it is inconvenient to test the dynamic performance of moraines

Method used

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  • Soil body shearing device for moraine dynamic performance test
  • Soil body shearing device for moraine dynamic performance test
  • Soil body shearing device for moraine dynamic performance test

Examples

Experimental program
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Effect test

Embodiment

[0040] refer to figure 1 , a soil shearing device for testing the dynamic performance of moraine, including: a reaction force frame 10, a support assembly 20, a compaction assembly 30 and a multi-directional loading assembly 40. The reaction force frame 10 is in the shape of a square, and its bottom inner wall is provided with a rolling groove 11, and the support assembly 20 can slide along the rolling groove 11, so that the horizontal position of the support assembly 20 can be adjusted conveniently.

[0041] refer to figure 1 and figure 2, the support assembly 20 includes: a pressure bearing plate 21 slidingly fitted with the reaction force frame 10, a base 22 arranged above the pressure bearing plate 21, and a lower base 23 located above the base 22, and the bottom surface of the pressure bearing plate 21 is connected with multiple A roller 24 rolling and cooperating with the rolling groove 11 makes the roller 24 roll along the rolling groove 11, thereby driving the press...

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Abstract

The invention discloses a soil body shearing device for moraine object dynamic performance testing, and belongs to the technical field of rock-soil body mechanical testing. The invention relates to a soil body shearing device for moraine dynamic performance testing. The soil body shearing device comprises a counter-force frame, a supporting assembly, a pressing assembly, a multidirectional loading assembly and a temperature control device. The supporting assembly is slidably arranged on the counter-force frame, the test piece is located between the supporting assembly and the pressing assembly, the Z-direction loading piece is located on the top face of the pressing assembly, loads are applied to the test piece through the pressing assembly, and the X-direction loading piece and the Y-direction loading piece make contact with the side faces of the supporting assembly correspondingly, so that the loads are applied to the supporting assembly; therefore, the test piece can bear shear loads in the normal direction and the horizontal direction at the same time, the loading condition is closer to the earthquake action borne by an actual engineering site, the shear stress can be directly applied, the generated shear strain can be directly measured, and the problem that dynamic performance testing of moraine objects is not convenient at present is solved.

Description

technical field [0001] The invention relates to the technical field of rock and soil mechanics tests, in particular to a soil shearing device used for testing the dynamic performance of moraines. Background technique [0002] In the difficult and dangerous mountainous areas of the west where the natural environment is very complex, land transportation infrastructure has huge demand and room for development, but also faces more severe technical challenges and safety tests from the harsh environment. The Sichuan-Tibet Railway, the Shanghai-Kunming High-speed Railway, and the Chengdu-Guizhou High-speed Railway, etc. under construction, have opened the curtain of building high-speed railways in the difficult and dangerous mountainous areas of the west. [0003] Moraine is a large amount of rock and soil debris carried by glaciers during the movement of glaciers. It is a wide-graded mixed accumulation of boulders, boulders, crushed stones, gravels, silt, and clay deposited by the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/24G01N3/02G01N3/04
CPCG01N3/24G01N3/02G01N3/04G01N2203/0025
Inventor 张迎宾贺建先丁天力富海鹰余鹏程李得建赵炼恒黄达
Owner SOUTHWEST JIAOTONG UNIV
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