Deep rock mass engineering project disaster model experiment method

A technology of model experiment and rock mass, which is applied in the field of model test for experimental research and deep rock mass engineering disaster model experiment, can solve the problems of long period and high cost, and achieve the goal of ensuring accuracy, overcoming high cost and enriching loading methods Effect

Active Publication Date: 2007-12-05
CHINA UNIV OF MINING & TECH (BEIJING)
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  • Deep rock mass engineering project disaster model experiment method
  • Deep rock mass engineering project disaster model experiment method
  • Deep rock mass engineering project disaster model experiment method

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[0028] Test content

[0029] 1) On the basis of the conception of physical finite element plates in geomechanical model tests proposed by Professor He Manchao of China University of Mining and Technology, study how to prepare physical finite element plates, and improve the existing model test methods and technologies;

[0030] 2) Use the test equipment adopted by the rock mass engineering and geological disaster simulation test system (China University of Geosciences, Beijing) to carry out different boundary (mainly lateral) loading methods on the large-scale model samples made of physical finite element plates. Under the plane test, the impact of the boundary loading plate on the loading accuracy and the deformation law of the deep coal rock under continuous loading and discontinuous loading conditions are discussed;

[0031]Before the excavation of the model, the loading comparison test of the boundary continuous loading plate and the discontinuous loading plate is carried o...

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Abstract

The test technique of the geomechanics model the important way to research large-scale and complex rock-soil project and model testing technique can realize the real project situation. But at present, the testing periodic of the test technique of the geomechanics model is long, and when changing a kind of parameter each time, we must remake a model test. The model can not be reused, the fee is high, the testing technique is complex, and the research cost is large. This invention raises the conception of physical finite element board material, by the continuous or discontinuous symmetric load mean, according to the field complex geological conditions, adopting different finite element board combination to simulate the condition. After the damaging test, collecting the undamaged definite element material for the next reuse, at the same time, because the size of the element material is too small, it can simulate all kinds of different rock mass. This overcomes the defects of the long testing period and high cost.

Description

Technical field: [0001] The invention relates to a model test method for deep rock mass engineering disasters, which belongs to the field of mine engineering disaster model research, in particular to a model test method for experimental research on deep mine disasters. Background technique: [0002] Development History [0003] Creation: From the beginning of the 20th century, some countries in Western Europe began to conduct structural model tests and gradually established similar theories. In the 1960s, experts headed by E.Fumagalli pioneered the engineering geomechanics model test technology at the Italian Structural Model Test Institute (ISMES), and the test research ranges from elasticity to plasticity to the final failure stage. Subsequently, countries such as Portugal, the former Soviet Union, France, Germany, the United Kingdom and Japan also carried out research in this area. Development: The 1967 International Conference on Rock Mechanics and the Ninth Internatio...

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IPC IPC(8): G01D21/00G09B25/00
Inventor 何满潮钱增珍孙晓明
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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