Three-dimensional space structure modeling and key block identifying method of engineering rock mass

Abstract

The invention relates to a three-dimensional space structure modeling and key block identifying method of engineering rock mass, belonging to the fields of modeling and analysis of the entity structure of the rock mass engineering such as geotechnical engineering, mine exploitation, engineering construction, hydraulic engineering, underground structure and the like. The method of the invention comprises the following steps: (1) acquiring the structure original data of the engineering rock mass in the field; (2) processing and extracting the original data of the engineering rock mass; (3) constructing the model of the engineering rock mass; and (4) identifying blocks. The invention has the advantages as follows: the method realizes the purposes of quickly searching the structure of the engineering rock mass and identifying the key blocks, considers the requirement for quickly identifying a new structural surface in the engineering implementation process, and can be used for automatically searching the key blocks and counting the amount of movable blocks.

Description

technical field [0001] The invention belongs to the field of solid structure modeling and analysis of rock mass engineering such as geotechnical engineering, mining, engineering construction, water conservancy engineering, underground structure, etc., and particularly relates to a process based on discontinuous medium, anisotropic rock mass, and engineering disturbance Three-dimensional numerical simulation analysis method and engineering application. Background technique [0002] The factors affecting the stability of engineering rock mass are relatively complex, and there is a big difference from the stability and reliability analysis of traditional structures. It is closely related to the geological characteristics, engineering factors, mechanical mechanism, failure mechanism, disturbance process and other factors of engineering rock mass. . [0003] During the long evolution of geological history, rocks have been subjected to the long-term effects of multi-phase tectoni...

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Problems solved by technology

[0004] Traditional analysis methods are based on numerical methods such as finite element, discrete element, boundary element and their coupling. It is difficult to consider the real characteristics of rock mass structure and engineering disturbance process in the simulation process. At present, block theory is mostly used to solve the above problems. However, the block theory is mainly aimed at the analysis of the stability of slope blocks. The research object is the slope, and it lacks the basic analysis functions of block theory such as stereographic projection. Therefore, it is not a real calculation method of block theory. Other methods such as wedge body stability analysis, etc., which are also quite different from the block theory method

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