云南水力发电2025，Vol.41Issue(2)：59-63,5.DOI:10.3969/j.issn.1006-3951.2025.02.015
滇中引水工程凤屯隧洞典型软岩洞段衬砌结构安全分析
Safety Analysis of Lining Structure of Typical Soft Rock Cave Section in Fengtun Tunnel of Central Yunnan Water Diversion Project
摘要
Abstract
Central Yunnan Water Diversion Project is a long-distance water diversion project mainly composed of tunnels.Large deformation of soft rock is one of the key technical challenges faced in tunnel construction,with the Chuxiong section's"Dian Zhong Red Beds"soft rock being the most representative.This article selects a typical soft rock cave section of Fengtun Tunnel in Chuxiong section,and based on the actual geological conditions revealed by excavation,reviews and evaluates the safety of the lining structure through two methods:"load structure method"and"stratum structure method".The calculation results indicate that the bearing capacity and crack width of the lining structure meet the requirements of the specifications.Considering the rheological effect,the overall lining structure of the tunnel is under compression,with minimal structural stress and deformation,ensuring the safety of the lining.关键词
隧洞/软岩大变形/衬砌结构/安全分析/滇中引水Key words
tunnel/large deformation of soft rock/lining structure/security analysis/Central Yunnan Water Diversion Project分类
建筑与水利引用本文复制引用
王爱东,李树芳,杨鹏靖,向天兵,杨小龙,马建伟..滇中引水工程凤屯隧洞典型软岩洞段衬砌结构安全分析[J].云南水力发电,2025,41(2):59-63,5.基金项目
云南省重点科技专项(202102AF080001) （202102AF080001）
电建集团重点科技项目(DJ-ZDXM-2022-23) （DJ-ZDXM-2022-23）
