Method and equipment for constructing strength criterion material parameter of rock sample

A technology of material parameters and rock samples, which is applied in the field of construction of rock sample strength criterion material parameters, can solve problems such as not established

Active Publication Date: 2019-03-08
YANGTZE UNIVERSITY
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Problems solved by technology

Although many scholars combine the rock triaxial compression test to determine the H-B yield criterion parameter m i Relevant research has been carried out on the value method of , but there is no m i Value method, accurately determine the parameter m i Still a technical issue of widespread concern in the industry

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  • Method and equipment for constructing strength criterion material parameter of rock sample
  • Method and equipment for constructing strength criterion material parameter of rock sample
  • Method and equipment for constructing strength criterion material parameter of rock sample

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Embodiment Construction

[0034]In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention. In addition, the technical features in each embodiment or a single embodiment provided by the present invention can be combined arbitrarily with each other to form a feasible technical solution, but it must be based on the realization of those skilled in the art. When there is a contradiction or cannot be realized, it should be considered that t...

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Abstract

An embodiment of the invention provides a method and equipment for constructing a strength criterion material parameter of a rock sample. The method comprises the following steps: obtaining the relation between the material parameter and confining pressure in a curve fitting manner according to the rock sample and a bedding angle; obtaining the relation between the material parameter and the bedding angle in a curve fitting manner according to the rack sample and the confining pressure; obtaining the relation between the material parameter and the confining pressure and the bedding angle by using a user-defined fitting function in combination with the relation between the material parameter and the confining pressure and the relation between the material parameter and the bedding angle, and constructing a predicted value of the strength criterion material parameter of the rock sample. With the adoption of the method and the equipment for constructing the strength criterion material parameter of the rock sample in the embodiment, the predicted value of the strength criterion material parameter of the rock sample can be constructed effectively, accuracy of the predicted value of thestrength criterion material parameter of the rock sample can be further determined, and an improved H-B criterion is obtained on the basis.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of engineering geology, in particular to a method and equipment for constructing material parameters of rock sample strength criteria. Background technique [0002] One of the core problems in the stability evaluation of slopes, dam foundations and underground caverns is to determine the yield criterion of rock mass. A reasonable and feasible yield criterion of rock mass is the basis for numerical simulation evaluation of deformation and stability of various rock masses. The Hoek-Brown (H-B) criterion is one of the most widely used rock mass yield criteria at present, and has been developed and perfected many times. [0003] At present, the Hoek-Brown strength criterion has formed a complete system, which is widely used in almost all projects related to rock mass, such as large slopes, tunnels, foundations, hydropower projects, and mining. The H-B strength criterion is applicable t...

Claims

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Application Information

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IPC IPC(8): G01N3/12
CPCG01N3/12G01N2203/0019G01N2203/0048G01N2203/0075G01N2203/0252G01N2203/0256
Inventor 温韬王凤华胡明毅
Owner YANGTZE UNIVERSITY
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