摘要
根据国内既有软岩隧道大变形及洞口浅埋段研究现状,结合九绵高速层状变质软岩隧道自身特点及现场实际的施工情况,采用工程类比的方法,归纳总结层状变质软岩隧道大变形灾害发生、隧道洞口浅埋段的灾害类型与现场不同工法、支护模式及关键参数的关系,提出九绵高速层状变质软岩隧道大变形及洞口浅埋段的适宜施工工法、支护方式及关键参数建议。
Based on the research status of large deformation of existing soft rock tunnel and shallow buried section of the entrance in China,combined with the characteristics of Jiumian high-speed layered metamorphic soft rock tunnel and the actual construction situation on site,this paper adopts the method of engineering analogy.The relationship between the occurrence of large deformation disaster of layered metamorphic soft rock tunnel,the disaster type of shallow buried section of tunnel entrance and different construction methods,supporting modes and key parameters at the site is summarized,and the appropriate construction method,supporting mode and key parameter suggestions for large deformation and shallow buried section of tunnel entrance of Jiumian high-speed layered metamorphic soft rock tunnel are put forward.
作者
钱鑫
王飞
彭撞
杨朝栋
曾楠
QIAN Xin;WANG Fei;PENG Zhuang;YANG Chao-dong;ZENG Nan(Sichuan Mianjiu Expressway Co.Ltd.,Chengdu 610000,China)
出处
《工程建设与设计》
2023年第18期77-79,共3页
Construction & Design for Engineering
关键词
文献现场调研
层状变质软岩
变形统计分析
Jliterature field research
stratified metamorphic softrock
deformation statistical analysis
