A Scenario Reconstruction Method of Collapse and Rolling Rock Disaster

Abstract

The invention discloses a scene reappearance method of the collapse and rolling stone disaster, which constructs the overall panoramic three-dimensional model and the partial collapse and rolling stone three-dimensional model, and extracts the terrain and structural surface elements of the collapse and rolling stone disaster; regards the geometric surfaces forming the rolling stone body as consisting of a series of vertices The polygonal surface surrounded by the rolling stone block model is established; the three-dimensional surface grid of the landslide rolling stone disaster scene is reconstructed through the surface contour control points and their material properties, and then the sliding bed block system model is constructed using the three-dimensional surface grid; the collapse The triangular mesh of the body outline and the deterministic structural surface, and then use the geometric elements of the random joint surface to generate a three-dimensional random joint network in the collapse body outline, construct the collapse block system, obtain the disaster scene map of the collapse and rolling rocks, and realize the simulation of the entire disaster evolution process . The invention realizes the seamless connection and effective fusion of measurement-model-calculation data, reproduces the scene evolution process of landslides and rolling stones, and has the advantages of advanced technology, simple operation and the like.

Description

technical field [0001] The invention belongs to the technical fields of disaster prevention and reduction engineering, water conservancy and hydropower, transportation, mining and other geotechnical engineering, and more specifically relates to a method for reproducing disaster scene of collapse and rockfall, and is especially suitable for scenario analysis of evolution process of collapse and rockfall disaster. Background technique [0002] my country, especially the west, is the region with the most serious geological disasters in Asia and even in the world. During the long history of geological evolution, the crust of the western region has been greatly uplifted, forming the landform characteristics of undulating mountains, deep rivers and steep slopes, making this region an ideal place for the breeding of collapsed rocks. Under the influence of environmental factors such as rainfall and earthquakes, the unstable landslides and rolling rocks formed by the geological evolu...

AI Technical Summary

Problems solved by technology

[0004] In view of the above defects or improvement needs of the existing technology, in order to overcome the above-mentioned shortcomings of the prior art, the present invention aims to solve the problem that the existing work cannot directly apply the characteristic parameters of the collapse and rolling rocks obtained by photogrammetry to the disaster movement of the collapse and rolling rocks. Process Analysis, Issues Constraining the Development of Scenario Reproduction Methods for Landslides and Rolling Rock Disasters

Images