九绵高速层状变质软岩隧道大变形统计分析研究  

Statistical Analysis of Large Deformation of Jiumian Expressway Layered Metamorphic Soft Rock Tunnel

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)

机构地区：[1]四川绵九高速公路有限责任公司,成都610000

出　　处：《工程建设与设计》2023年第18期77-79,共3页Construction & Design for Engineering

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.

关 键 词：文献现场调研 层状变质软岩 变形统计分析 

分 类 号：U451.2[建筑科学—桥梁与隧道工程]