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Pressure chamber for CT triaxial test

A triaxial test, pressure chamber technology, applied in measuring devices, instruments, scientific instruments, etc., can solve problems such as affecting the rotation accuracy of the turntable

Inactive Publication Date: 2014-01-01
INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned shortcomings existing in the prior art, the object of the present invention is to provide a pressure chamber for CT triaxial test, the device is simple and light in structure, and solves the problem that the device is too heavy to affect the rotation accuracy of the turntable, And it can also collect confining pressure, axial pressure and sample deformation while performing CT scanning

Method used

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  • Pressure chamber for CT triaxial test
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  • Pressure chamber for CT triaxial test

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Embodiment 1

[0027] The specific embodiment of the present invention is described in detail below in conjunction with the accompanying drawings.

[0028] Such as figure 1 , figure 2 , image 3 with Figure 4As shown, a pressure chamber for CT triaxial test is composed of a pressure chamber cylinder 1, a pressure chamber upper fixing flange 2-1, a pressure chamber lower fixing flange 2-2, a pressure chamber upper cover 3-1 and Pressure chamber base 3-2, sample base 6, upper indenter 7-1 and lower indenter 7-2, loading piston 9, reaction frame, flat jack 11, displacement measuring piece and battery-type data acquisition instrument 15, thermal The shrink sleeve 16 is composed of; the connection relationship is: the two ends of the pressure chamber cylinder 1 are glued together with the upper fixed flange 2-1 of the pressure chamber and the lower fixed flange 2-2 of the pressure chamber, and are connected to the upper cover of the pressure chamber 3-1 and The pressure chamber base is seal...

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Abstract

The invention discloses a pressure chamber for a CT triaxial test. A pressure chamber cylinder, a pressure chamber upper fixing flange and a pressure chamber lower fixing flange are cemented and are sealed by a pressure chamber top cover and a pressure chamber pedestal, a loading piston is arranged on the pressure chamber top cover, a sample pedestal is arranged on the pressure chamber pedestal, a lower pressing head, a sample and an upper pressing head are arranged between the loading piston and the sample pedestal in the pressure chamber, and a reaction frame comprises a reaction column fixed on the pressure chamber top cover through a reaction column locking nut. The pressure chamber for the CT triaxial test provides axial loading for the sample by arranging a flat jack between the loading piston and the reaction frame. The pressure chamber has a simple structure, is portable, solves a problem of the influence of the rotation precision of a rotary stage by the overweight of the pressure chamber, and can acquire the confining pressure, the axial load and the sample deformation during CT scanning.

Description

technical field [0001] The invention belongs to the technical field of CT triaxial test, and more specifically relates to a pressure chamber for CT triaxial test, which is suitable for observing and studying the mechanical and permeation characteristics of samples under conventional triaxial pressure with Micro-focus CT microscopic evolution. Background technique [0002] The main purpose of the rock mechanics test is to simulate the mechanical and seepage characteristics of the rock in the natural state and the mechanism behind it. The conventional triaxial tester is one of the most common equipment in the field of experimental rock mechanics. The sample in this test is usually a cylindrical sample, and the sample is placed in a pressure chamber to apply a value of σ 3 In addition, a piston is set at the end of the pressure chamber concentric with the sample and transmits the load of the external actuator to apply σ to the sample 1 The axial compressive load of , so far t...

Claims

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Application Information

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IPC IPC(8): G01N3/02
Inventor 石露李小春
Owner INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI
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