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Intelligent strain control type geotechnical direct shear instrument and data acquisition and analysis method

A technology of strain control and data acquisition card, which is applied in the direction of analysis materials, instruments, scientific instruments, etc., can solve the problems of unrealized automatic data collection and automatic analysis, low intelligence of equipment, etc., and achieve the effect of reducing personnel investment and improving efficiency

Inactive Publication Date: 2018-09-04
CHINA UNIV OF MINING & TECH
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Problems solved by technology

The equipment is easy to operate, easy to carry, and low in application cost. However, two personnel need to participate and cooperate to complete the test. Moreover, the intelligence of the entire equipment is low, and the automatic collection of data and automatic parameters have not yet been realized. analyze

Method used

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  • Intelligent strain control type geotechnical direct shear instrument and data acquisition and analysis method
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  • Intelligent strain control type geotechnical direct shear instrument and data acquisition and analysis method

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with accompanying drawing.

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0022] Such as figure 1 As shown, the present invention includes a stepper motor 1, a shear box 2, a vertical load device 5, a measuring ring 6, a displacement sensor 7, a power supply 8, a data acquisition card 10 and a controller 11;

[0023] Such as figure 2 As shown, the two sides of the shearing box 2 are respectively connected with the stepping mot...

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Abstract

The invention discloses an intelligent strain control type geotechnical direct shear instrument and a data acquisition and analysis method. The direct shear instrument comprises a stepping motor, a shear box, a vertical loading device, a proving ring, a displacement sensor, a power supply, a data acquisition card and a controller. The two sides of the shear box are separately connected with the stepping motor and the proving ring. The shear box is divided into an upper shear box and a lower shear box. The lower shear box is connected with the output shaft of the stepping motor. The upper shearbox is connected with the proving ring. The vertical loading device is arranged at the top of the upper shear box. The displacement sensor is mounted in the proving ring, and is electrically connected with the data acquisition card through a data transmission line. The data acquisition card is electrically connected with the controller. The displacement sensor, the data acquisition card and the controller are electrically connected with the power supply. An automatic shear test of a soft rock and a soil specimen can be realized, data are automatically recorded and presented, meanwhile, the whole group of test is automatically analyzed, the shear strength parameters of a rock mass are provided, personnel investment is reduced, and the geotechnical test efficiency is improved.

Description

technical field [0001] The invention relates to an intelligent strain control type geotechnical direct shear instrument and a data acquisition and analysis method, which is especially suitable for fast, intelligent and accurate determination of shear strength parameters (cohesion force, internal friction angle) of soil and soft rock samples, and can Effectively reduce the number of personnel required for this test and improve test efficiency. Background technique [0002] Research fields such as slope engineering and foundation engineering require a large number of geotechnical tests and rock mechanics tests to determine the physical and mechanical parameters of rock and soil, and to evaluate the stability of slopes and foundations. For slopes or foundations composed of soft rock and soil, the shear strength parameters of the rock / soil mass are the key to determining the stability of slopes or foundations. At present, geotechnical direct shear test is the basic method to me...

Claims

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Application Information

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IPC IPC(8): G01N3/24G01N3/06
CPCG01N3/06G01N3/24G01N2203/0025
Inventor 舒继森韩流李新鹏尚涛
Owner CHINA UNIV OF MINING & TECH
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