Tunnel rock stratum large deformation analysis method and system based on three-dimensional modeling

By combining three-dimensional laser scanning and finite element analysis, a mechanical model of tunnel rock strata was constructed to identify potential deformation areas and adjust boundary conditions. This solved the problems of insufficient model integration and lack of dynamic adjustment in tunnel rock strata deformation analysis, and achieved high-precision deformation prediction and multi-view early warning.

CN121189113AActive Publication Date: 2025-12-23中国水利水电第七工程局有限公司
2 Cites 6 Cited by

Patent Information

Application Number
CN202511746187.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-26
Publication Date
2025-12-23
Estimated Expiration
2045-11-26

AI Technical Summary

Technical Problem

In existing technologies, the geological and mechanical models for tunnel rock strata deformation analysis are not sufficiently integrated, making it difficult to accurately reflect the mechanical response of complex rock strata. Furthermore, the deformation prediction lacks a dynamic iterative adjustment mechanism, which cannot adapt to stress changes during construction.

Method used

A geological model is constructed by acquiring initial 3D point cloud data through 3D laser scanning. A rock strata mechanical analysis model is established by combining finite element unstructured mesh generation to simulate the stress distribution during construction. Potential deformation areas are identified and boundary conditions are adjusted through iterative calculations to predict deformation trends and generate early warning information based on multi-dimensional feature fusion.

Benefits of technology

It realizes a closed-loop process from three-dimensional geological modeling to mechanical analysis, deformation prediction and visualization early warning, which improves the accuracy, dynamism and visualization of tunnel rock deformation analysis and reduces construction risks.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The embodiment of the invention relates to the technical field of data modeling analysis, and discloses a tunnel rock stratum large deformation analysis method and system based on three-dimensional modeling, and the method comprises the steps: collecting initial three-dimensional point cloud data through three-dimensional laser scanning; constructing an initial three-dimensional geologic model containing spatial morphological characteristics and a rock stratum interface geometric topological relation through space coordinate matching and curved surface reconstruction; finite element unstructured mesh generation is carried out on the model, and a rock stratum mechanical analysis model is established in combination with physical and mechanical parameters; inputting construction parameters and process information, activating unit nodes in sequence, and solving a force balance equation to simulate stress distribution; identifying a potential deformation area through iterative calculation, and adjusting boundary conditions to predict a deformation trend; the three-dimensional space distribution cloud atlas, the time evolution curve and the position marks are fused to generate multi-view deformation early warning information, the accuracy and the visualization degree of tunnel rock stratum deformation analysis are improved, and support is provided for construction safety.
Need to check novelty before this filing date? Find Prior Art