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Rock double linkage three axis rheogeniometer

A three-axis rheological and double-linkage technology, which is applied in the direction of instruments, flow characteristics, scientific instruments, etc., can solve the problems of roof sinking, bottom plate lifting, caving, etc., and achieves high reliability, good system versatility, and high precision. high effect

Inactive Publication Date: 2008-03-05
INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI
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  • Summary
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AI Technical Summary

Problems solved by technology

So far, the research results on the nonlinear rheological characteristics of soft rock have not fully grasped its deformation and failure laws. During the production process of many soft rock roadways, the bottom plate heaves, and the roof sinks, cracks, breaks and even falls.

Method used

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  • Rock double linkage three axis rheogeniometer

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Experimental program
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Effect test

Embodiment Construction

[0038] According to Figure 1, Figure 2 and Figure 3, the tester is composed of dedicated three-axis pressure chambers 5a, 5b, pressure sensor 2, displacement sensor 3, axial servo loading system 8a, confining pressure servo loading system 8b, and computer 11, etc. .

[0039] The basic connection relationship of this tester is:

[0040] The loading frame 1 is connected with the pressure sensor 2 to measure the axial force exerted by the sample, and the measurement accuracy is 2N

[0041] The pressure sensor 2 is connected with the three-axis pressure chamber 5a to collect and control the applied axial force during the test in real time;

[0042] The triaxial pressure chamber 5b is connected with the base 6 of the testing machine, and the base 6 of the testing machine is connected with the displacement sensor and the piston 7 of the axial output cylinder, and its function is the axial displacement that occurs during the test of the sample.

[0043] The triaxial pressure chamber 5a a...

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Abstract

The invention comprises a pressure sensor, a displacement sensor servo system, an axial output oil cylinder piston, an axial servo loading system, a computer and a loading frame. The loading frame is connected to the pressure sensor; the pressure sensor is connected to the triaxial pressure chamber; the triaxial pressure chamber is connected to the metal piece; the triaxial pressure chamber is respectively connected to the loading frame and base; there is an axial spacer located in the triaxial pressure chamber; a lateral extensometer chain and a lateral extensometer clamp are mounted on the sample tunnel wall of the triaxial pressure chamber.

Description

Technical field [0001] The invention relates to a dual-linkage rock triaxial rheometer, which is suitable for the rheological characteristics of soft rock and hard soil under different stress conditions. Using advanced servo control, ball screw and hydraulic technology combination, it can automatically stabilize the voltage, automatically record the stress-displacement curve, and the temperature duration curve. This equipment can realize triaxial creep tests with the same axial pressure and different confining pressures. Background technique [0002] In various engineering constructions, such as petroleum development, nuclear waste storage, the construction of the Three Gorges Project, and the Western Development, there are more and more engineering problems encountered in the rheology of rock and soil materials. Many scholars have discussed the use of rock mass Rheology theory is used to analyze and calculate various time-related phenomena and problems in the treatment of underg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N11/00G01N19/00G01N3/00
Inventor 陈卫忠于洪丹贾善坡谭贤君
Owner INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI
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