Rock multi-unit non-uniform uniaxial loading creep experiment device and working method

An experimental device, multi-unit technology, applied in the direction of measuring device, using stable tension/pressure test material strength, instrument, etc., can solve the problem of not considering rock anisotropy, lack of rock mechanics experimental method, etc.

Active Publication Date: 2020-12-01
NORTHEASTERN UNIV
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Problems solved by technology

Although the experimental research of related scholars has achieved relatively fruitful results, these experimental equipment and methods have not considered the influence of rock anisotropy and the complex stress field in which the crustal rock mass unit is located on the rock creep effect. Experimental equipment that can carry out rock multi-unit non-uniform uniaxial loading creep experiments, and lack of related rock mechanics experiment methods

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  • Rock multi-unit non-uniform uniaxial loading creep experiment device and working method
  • Rock multi-unit non-uniform uniaxial loading creep experiment device and working method
  • Rock multi-unit non-uniform uniaxial loading creep experiment device and working method

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Embodiment Construction

[0038] The present invention will be described in detail below with reference to the drawings and embodiments, but the protection scope of the present invention is not limited by the drawings and embodiments.

[0039] figure 1 It is a structural schematic diagram of the rock multi-unit non-uniform uniaxial loading creep experiment device of the present invention, figure 2 It is a schematic diagram of the structure of the multi-unit axial pressure loading module of the experimental device of the present invention. image 3 It is a schematic diagram of the single loading unit structure of the experimental device unit axial pressure loading module of the present invention, Figure 4 Be the stressed schematic diagram of specimen in the embodiment (when uniaxial loading creep experiment), Figure 5 It is a schematic diagram of Weibull distribution under different parameter conditions in the embodiment (during uniaxial loading creep experiment). as the picture shows:

[0040] A...

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Abstract

The invention relates to the technical field of rock mechanics experiments, in particular to a rock multi-unit non-uniform uniaxial loading creep experiment device and a working method. The experimentdevice comprises a high-rigidity frame, a multi-unit axial pressure loading module, an axial pressure Weibull distribution module, a pressure stabilization control module, a data acquisition module,a video recording module, a safety protection grid and a hydraulic pump. According to the invention, the real stress condition of the engineering rock mass is fully considered, and the anisotropism among all units of the rock and the influence of a complex stress field where the crustal rock mass is located on the creep effect of the rock are studied.

Description

technical field [0001] The invention relates to the technical field of rock mechanics experiments, in particular to a rock multi-unit non-uniform uniaxial loading creep experiment device and a working method. Background technique [0002] Due to the natural anisotropy of rocks and the complex geological structure in the rock mass, the crustal rock mass is in a complex stress field. The stress characteristics of each unit inside the rock mass under such complex stress field conditions have obvious non-uniformity, and the creep effect of the rock mass under such non-uniform load conditions is the cause of underground engineering deformation and instability. The main reason is also an urgent problem to be solved in the current rock mass engineering design. The existing rock mechanics testing technology is generally measured by the overall loading method of applying a uniform load (axial pressure or confining pressure) to the engineering rock specimen as a whole, which cannot r...

Claims

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Application Information

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IPC IPC(8): G01N3/12G01N3/02G01N3/06
CPCG01N3/02G01N3/066G01N3/12G01N2203/0071G01N2203/0252G01N2203/0635
Inventor 徐涛衡振杨天鸿朱万成于庆磊付腾飞于显杨袁阳薛彦超
Owner NORTHEASTERN UNIV
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