Shearing box as well as stress testing method and device

A technology of shear box and box body, which is applied in the direction of applying stable shear force to test the strength of materials, measuring devices, instruments, etc., which can solve large measurement errors and increase the friction between the upper shear box and the slide rail , troublesome installation and disassembly of samples, etc., to achieve accurate measurement, improve efficiency and measurement accuracy

Pending Publication Date: 2018-07-24
INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are obvious deficiencies in this technical solution. First, the normal force is directly loaded on the upper shear box. Under high normal pressure, the friction between the upper shear box and the slide rail is increased, resulting in relatively high Large

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  • Shearing box as well as stress testing method and device
  • Shearing box as well as stress testing method and device
  • Shearing box as well as stress testing method and device

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Example

[0039] First embodiment

[0040] Please refer to Figure 1 to Figure 4 This embodiment provides a shear box 10, which has the characteristics of simple structure, convenient use, and small measurement error, and can facilitate the installation and disassembly of the sample, which is beneficial to improve the efficiency and measurement accuracy of the test.

[0041] The cutting box 10 provided in this embodiment includes a first box body 100, a second box body 200, a sliding rail assembly 300 and a gasket 400. The first box body 100 is provided with a first cavity 101, a first sliding groove 110, and a second sliding groove 120. The first cavity 101 is located between the first sliding groove 110 and the second sliding groove 120, and the first sliding groove 110 and the second sliding groove 120 are arranged parallel to each other. The second box body 200 is provided with a second chamber 202, a first installation groove 210 and a second installation groove 220. The second chambe...

Example

[0054] Second embodiment

[0055] Please refer to Figure 1 to Figure 4 This embodiment provides a stress test method, using the shear box 10 provided in the first embodiment. The cutting box 10 includes a first box body 100, a second box body 200, a sliding rail assembly 300 and a gasket 400. The first box body 100 is provided with a first cavity 101, a first sliding groove 110, and a second sliding groove 120. The first cavity 101 is located between the first sliding groove 110 and the second sliding groove 120, and the first sliding groove 110 and the second sliding groove 120 are arranged parallel to each other. The second box body 200 is provided with a second chamber 202, a first installation groove 210 and a second installation groove 220. The second chamber 202 is arranged through and communicates with the first chamber 101, and the second chamber 202 is located in the first installation groove. 210 and the second installation groove 220, the first installation groove ...

Example

[0058] The third embodiment

[0059] Please refer to Figure 1 to Figure 4 This embodiment provides a stress testing device (not shown), including a loading mechanism (not shown) and a shear box 10. The cutting box 10 includes a first box body 100, a second box body 200, a sliding rail assembly 300 and a gasket 400. The first box body 100 is provided with a first cavity 101, a first sliding groove 110, and a second sliding groove 120. The first cavity 101 is located between the first sliding groove 110 and the second sliding groove 120, and the first sliding groove 110 and the second sliding groove 120 are arranged parallel to each other. The second box body 200 is provided with a second chamber 202, a first installation groove 210 and a second installation groove 220, the second chamber 202 is arranged through and communicates with the first chamber 101, and the second chamber 202 is located in the first installation groove 210 and the second installation groove 220, the firs...

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Abstract

The invention discloses a shearing box as well as a stress testing method and device, and relates to the field of the shearing box for stress measurement. The shearing box provided by the invention comprises a first box body, a second box body, a sliding rail assembly and a gasket, wherein the first box body is provided with a first chamber, a first sliding chute and a second sliding groove; the second box body is provided with a second chamber, a second mounting groove and a second mounting groove; the second chamber is formed in a penetrating manner and is communicated with the first chamber. The sliding rail assembly comprises first sliding pieces and second sliding pieces; the first sliding pieces are matched with the first sliding slot in a sliding manner; the second sliding pieces are matched with the second sliding slot in a sliding manner; the gasket is arranged in the second chamber and is used for covering the second chamber. The invention provides the shearing box and a stress testing device, and according to the shearing box, and the stress testing method and device provided by the invention, plastic extrusion of soil samples or soft intercalated layers along an edge ofthe shearing box under high normal pressure can be prevented so as not to cause distortion of a test result; moreover, the testing device is convenient for mounting and dismounting the test samples.

Description

technical field [0001] The invention relates to the field of shear cells for stress measurement, in particular to a shear cell, a stress test method and a device. Background technique [0002] This section is intended to provide a background or context for implementations of the invention that are set forth in the claims and detailed description. The descriptions herein are not admitted to be prior art by inclusion in this section. [0003] With the continuous development of economic construction and national defense construction, there are more and more deep rock mass projects. In deep engineering rock mass, a common weak interlayer is mainly a kind of hard soil-soft rock material, which has a wide distribution range and poor mechanical properties, and is often the main factor controlling the stability of underground engineering surrounding rock mass. [0004] The shear strength parameter of the weak interlayer is one of the main indicators to reflect its mechanical prope...

Claims

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Application Information

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IPC IPC(8): G01N3/24G01N3/02
CPCG01N3/24G01N3/02G01N2203/0025
Inventor 张传庆韩钢周辉刘宁史林肯高阳卢景景宋桂红李华志
Owner INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI
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