Deep rock mass engineering project disaster model experiment method

A model experiment and rock mass technology, which is applied in the field of deep rock mass engineering disaster model experiment and model test for experimental research, can solve the problems of high cost and long cycle, and achieve high cost, ensure accuracy, and accurate loading method Effect

Active Publication Date: 2009-07-01
CHINA UNIV OF MINING & TECH (BEIJING)
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Problems solved by technology

This also overcomes the shortcomings of long model test period and high cost.

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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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Experimental program
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Embodiment Construction

[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

Geomechanical model test technology is an important means to study large-scale and complex geotechnical engineering problems. Model test technology can truly reproduce the actual engineering situation. However, the current geomechanical model test technology has a long test cycle, and it must be done again every time a parameter is changed. Model test, the model cannot be reused, the cost is high, the test technology is complicated, and the cost of research is large. However, the present invention proposes the concept of physical finite element plate material and adopts the method of continuous or discontinuous symmetrical load. According to the complex geological conditions on site, The combination of unit plates with different strengths is used to simulate the occurrence. After the destructive test is completed, the undamaged unit materials are collected and can be reused for the next test. At the same time, due to the small size of the unit plate material, various rock masses can be flexibly simulated. This also overcomes the shortcomings of long model test 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 International Conference on Rock Mechanics in 1967 and the Ninth Interna...

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Application Information

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Patent Type & Authority Patents(China)
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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