基于三维数值分析的水利工程TBM开挖围岩变形安全评价
Safety Evaluation of Rock Deformation During TBM Excavation in Hydraulic Engineering Based on Three-dimensional Numerical Analysis
黄呈均1
作者信息
- 1. 深圳市水务工程检测有限公司,广东 深圳 518000
- 折叠
摘要
针对水利工程中采用敞开式TBM进行隧洞开挖的围岩变形问题,提出了一种基于三维数值分析的围岩变形安全评价方法.该方法综合考虑了掌子面前方、TBM护盾区间和出护盾后 3 个阶段的围岩变形情况,通过引入围岩变形安全度(F_disp)进行定量评估.文章通过具体案例,展示了该方法在水利工程中的应用,以及不同支护方案对围岩变形安全性的影响.
Abstract
A safety evaluation method for surrounding rock deformation based on three-dimensional numerical analysis is proposed for tunnel excavation using open TBM in hydraulic engineering.This method comprehensively considers the deformation of the surrounding rock in three stages:the front of the tunnel face,the TBM shield interval,and after the shield is released,and quantitatively evaluates it by introducing the rock deformation safety degree(F_disp).This paper demonstrates the application of this method in hydraulic engineering through specific cases,as well as the impact of different support schemes on the safety of surrounding rock deformation.
关键词
三维数值分析/水利工程/TBMKey words
three dimensional numerical analysis/water conservancy engineering/TBM引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据