Method for refined modeling and block recognition of rock slope structure

Abstract

The invention which relates to the field of the geological modeling technology, provides a method for refined modeling and block recognition of a rock slope structure. The method comprises: (1), obtaining a triangular element grid and a structural plane geometric parameter of a slope free face by using a laser scanning technique; (2) transforming a triangular face unit into a body unit by a projection method; (3) realizing spatial distribution of a structural surface by using a three-dimensional network simulation technology; (4) with a plane where the structural plane is located, cutting an intersected body unit completely; and (5) carrying out blanking on a side surface of a cylindrical unit inside a rock mass, carrying out fusion with the cut body unit, and thus forming block body merging between structural surfaces, thereby realizing block body identification. Therefore, the field measurement data and the block identification are combined; the precision is high and the speed is fast; and the identified block form and number are not limited.

Description

technical field [0001] The invention relates to the technical field of geological modeling, in particular to a refined modeling of rock slope structure and a block identification method. Background technique [0002] Rock slope is a complex structural system formed by cutting structural planes (fault planes, joint planes, fissure planes, etc.) with different structures, occurrences and scales. Homogeneity, anisotropy, inelasticity and other characteristics. The structural face and the free face cut each other, forming blocks of different sizes and shapes inside the rock mass, which control the stability of the slope to a certain extent. It is specifically manifested in two aspects. First, the deterministic block formed between the large-scale structural surface and the air-facing surface undergoes sliding instability under gravity and external disturbances; In addition to randomness, the blocks formed by mutual cutting also have randomness, and their quantity, size and dis...

AI Technical Summary

Problems solved by technology

However, due to the complex pre-processing work such as geological modeling and grid division, the workload is large or even impossible to achieve, in various numerical calculations and analyzes at home and abroad, it is often forced to use simplified methods to establish rock mass geological models, and There are few reflections on the complex shape of the air surface and the internal structural surface of the rock mass engineering, which must have a certain impact on the numerical calculation effect. The method of simplifying the pre-processing of the numerical calculation is an important issue worthy of study

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