Real-time three-dimensional CT (computed tomography) scanning type rock joint shear test system

A rock joint and shear test technology, applied in the field of geotechnical engineering, can solve the problems of inability to realize 360° scanning and poor real-time performance

Pending Publication Date: 2017-01-25
SHAOXING UNIVERSITY
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Problems solved by technology

[0006] In order to overcome the shortcomings of the existing CT scanning rock test system that cannot realize 360° scanning and poor real-time performance, the presen

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  • Real-time three-dimensional CT (computed tomography) scanning type rock joint shear test system
  • Real-time three-dimensional CT (computed tomography) scanning type rock joint shear test system
  • Real-time three-dimensional CT (computed tomography) scanning type rock joint shear test system

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings.

[0026] refer to Figure 1 ~ Figure 3 , a CT real-time three-dimensional scanning rock joint shear test system, including a shear chamber for loading rock joint specimens, a host frame for carrying the shear chamber, and a loading device for applying confining pressure and shear force 1 , a rotating device for realizing 360° rotation of the test piece and a CT scanning device for realizing CT scanning;

[0027] The shearing chamber is a hollow cylindrical shearing chamber, the rock joint test piece is located in the shearing chamber, the action end of the loading device is connected to a rotating washer 3, and the rotating washer 3 is connected to a briquetting block 15, The briquetting block 15 passes through the outer wall of the shearing chamber and abuts against one side of the half of the rock joint test piece, and the other side of the half part of the rock joint...

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Abstract

A real-time three-dimensional CT (computed tomography) scanning type rock joint shear test system comprises a shear chamber, a mainframe framework, a loading device, a rotating device and a CT scanning device. The shear chamber is a hollow cylindrical shear chamber, and a rock joint sample is positioned in the shear chamber. An action end of the loading device is connected with a rotating gasket which is connected with a pressure block, the pressure block penetrates the outer wall of the shear chamber to abut against one side of a half portion of the rock joint sample, the other side of the half portion of the rock joint sample is positioned on a spring retaining plate which is fixed in the shear chamber, and the other half portion of the rock joint sample is fixed in the shear chamber. The rotating device comprises a rotating mechanical support frame and a driving component used for driving the rotating mechanical support frame to rotate, the rotating mechanical support frame is in linkage with the shear chamber, and the rotating mechanical support frame, the shear chamber and the rotating gasket are in coaxial arrangement. The CT scanning device comprises a radioactive source and a detector, and the radioactive source and the detector are arranged on two opposite sides of the shear chamber. The real-time three-dimensional CT scanning type rock joint shear test system has advantages that 360-degree scanning is effectively realized, and great real-time performance is achieved.

Description

technical field [0001] The invention belongs to the field of geotechnical engineering, and relates to a rock shear test system, in particular to a CT real-time three-dimensional scanning rock joint shear test system. Background technique [0002] With the continuous advancement of many major geotechnical projects in the country, the engineering safety problems caused by the instability of jointed rock mass in engineering practice have been paid more and more attention. The shear properties of rock joints are an important basis for evaluating the stability of rock mass, and have always received extensive attention in academia and engineering applications. Most of the existing research focuses on the macroscopic description of the shear properties of rock joints, focusing on obtaining indicators such as shear strength, but the research on the microscopic failure behavior in the shearing process is not deep enough. [0003] The shear failure of rock joints is usually caused by...

Claims

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Application Information

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IPC IPC(8): G01N3/24G01N23/04
CPCG01N3/24G01N23/04G01N2223/616G01N2223/03G01N2203/0025
Inventor 李博杜时贵赵志宏张丽云
Owner SHAOXING UNIVERSITY
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