Three-dimensional space structure modeling and key block identification method of engineering rock mass
A technology of three-dimensional space structure and identification method, applied in the field of engineering application, can solve the problems of not being, lack of basic analysis function of block theory, etc.
Inactive Publication Date: 2011-12-28
NORTHEASTERN UNIV LIAONING
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[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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[0101] This embodiment selects a highway tunnel as an example for illustration, and the specific implementation process is as follows:
[0102] I. Project overview
[0103] The axial direction of the tunnel: the entrance is 218°, the exit is 210°, the section is approximately elliptical, the clear width of the tunnel is 19.24m, and the height is 10.39m. From 670m to pile number K345+130m, the total length is 520m, the longitudinal slope of the tunnel is 1.6%, and the tunnel is located on the flat curve of R=5500m.
[0104] II. Field geological survey
[0105]The field geological survey starts from the side slope of the k345+360 road, 300m to the north, and is divided into two measurement sections. The length of the measurement section is 100m in the south and 200m in the north. Mainly, shale is only found at 0-10m, gray-purple, thin-layered, and the layer occurrence is 58 / 45. The remaining 10-100m of this survey section is all limestone. In the north survey section 146.5-150...
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The invention relates to a three-dimensional spatial structure modeling and key block identification method of engineering rock mass, belonging to the field of solid structure modeling and analysis of rock mass engineering such as geotechnical engineering, mining, engineering construction, hydraulic engineering, underground structure, etc. The steps are as follows 1. Acquisition of original data of engineering rock mass on-site structure; 2. Processing and extraction of original data of engineering rock mass; 3. Construction of engineering rock mass model; 4. Block identification method. The advantages of the invention: the method realizes the rapid search of engineering rock mass structures, the identification of key blocks, takes into account the rapid identification of new structural planes in the process of engineering implementation, and can automatically search for key blocks and count the number of movable blocks. method.
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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IPC IPC(8): G06T17/00
Inventor 王述红杨勇朱万成杨天鸿
Owner NORTHEASTERN UNIV LIAONING