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Rock shearing seepage coupling true triaxial test system

A test system, true triaxial technology, applied in the direction of applying stable tension/pressure to test material strength, measuring devices, instruments, etc., can solve the problem of no open loading device structure, test box structure seepage loading system structure, no measurement test There are no problems such as the installation of crack-like cracks, no introduction of measuring parts, etc., to achieve the effect of reducing end friction effect and corner effect, uniform triaxial stress state, and high protection strength

Inactive Publication Date: 2012-07-25
SHANDONG UNIV OF SCI & TECH
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Problems solved by technology

[0003] In the prior art, CN2600810Y discloses a true triaxial seepage test measuring device, but it is only a theoretical description, and does not disclose specific The structure of the loading device, the structure of the test box, and the structure of the seepage loading system, and the use of optical fiber measurement to measure the rock seepage state, which means that an optical fiber inlet must be reserved in the test box, the test box is poorly sealed, and it cannot be done accurately seepage control
CN100573095C discloses a true triaxial instrument, which is mainly used for the measurement of soil sample strain, without considering the seepage situation and crack device, so it does not have a seepage system, and there is no similar device for measuring sample cracks such as an acoustic wave measurement system
CN102096107A discloses a method for measuring rock-soil cracks by sound waves, but it is mainly for the measurement of large-structured rocks, not for the measurement of small samples, and it is mainly for the description of data processing methods, without introducing specific Measuring parts

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  • Rock shearing seepage coupling true triaxial test system
  • Rock shearing seepage coupling true triaxial test system
  • Rock shearing seepage coupling true triaxial test system

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Embodiment Construction

[0021] Referring to the accompanying drawings, a rock shear-seepage coupled true triaxial test system includes a loading assembly, a test box, a seepage assembly, a detection assembly, and a control assembly;

[0022] The loading assembly includes a frame, an axial loading device, a lateral loading device, and a transverse shearing loading device. The test box is arranged in the frame and connected with the axial The loading device, lateral loading device, and transverse shearing loading device can apply force to the test box respectively, and the application directions of the above three loading devices are perpendicular to each other; each loading device has an independent loading cylinder, force sensor, pressure first class. The frame adopts the form of frame structure, two side loading oil cylinders are horizontally and vertically fixed on the pressure column, and the force sensor is installed on the piston. The axial loading mechanism includes a loading cylinder, a force...

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Abstract

The invention relates to a rock shearing seepage coupling true triaxial test system, which comprises a loading assembly, a test box, a seepage assembly, a detection assembly and a control assembly. The whole system is high in rigid, safe and reliable in high-pressure water injection and sealability, good in sealing reliability, high in loading stability and protection strength and capable of effectively reducing the end-part friction effect and the corner effect and realizing the uniform triaxial stress state as far as possible; a loading test device and a mainshaft loading mechanism are designed in a split manner, and safe high-pressure water injection is achieved; a safety valve and a pressure-stabilizing control device are arranged on a water outlet; and the rock shearing seepage coupling true triaxial test system is stable to control.

Description

technical field [0001] The invention relates to a rock stress measurement test system, in particular to a rock shear seepage coupled true triaxial test system. Background technique [0002] Since engineering rock mass is generally affected by three-dimensional stress, laboratory research on the stress-seepage coupling characteristics of rock mass cracks under three-dimensional stress conditions can better reflect the actual situation of natural geological rock mass. However, limited by the test conditions, especially the osmotic sealing means, the osmotic pressure that the test box of the existing equipment can withstand is often relatively low under the condition of allowing appropriate shear displacement. Under the coupling action of high water pressure and high triaxial pressure, the real-time tracking of the physical process of rock mass crack damage expansion and the systematic research on the quantitative description of deep rock mass crack distribution are relatively ...

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Application Information

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IPC IPC(8): G01N3/08G01N3/12G01N3/02
Inventor 郭惟嘉尹立明陈绍杰孙文斌张新国王胜清刘彦民
Owner SHANDONG UNIV OF SCI & TECH
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