适应灰岩地区的地铁隧道盾构管片内力计算与原位监测  

INTERNAL FORCE CALCULATION OF SHIELD TUNNEL SEGMENTS IN SUBWAY TUNNELS SUITABLE FOR LIMESTONE AREAS

作　　者：谢可为 Xie Ke-wei

机构地区：[1]中铁开发投资集团有限公司,云南昆明650500

出　　处：《建筑技术开发》2023年第8期80-83,共4页Building Technology Development

摘　　要：为了研究适应灰岩地区的地铁隧道盾构管片内力原位现场监测技术,以贵阳地铁三号线一期工程高新路口站—师范学院站盾构区间一处强风化灰岩地层的不利断面为工程背景,采用理论计算和原位监测相互对比分析验证,对其实际的安全状态进行考量,并对比软土地层与灰岩地层管片受力特征,保证地铁隧道盾构管片的安全性。In order to study the in-situ monitoring technology for the internal force of shield segments of subway tunnel in limestone areas,this paper takes the adverse section of a strongly weathered limestone stratum in the shield interval between Gaoxin road crossing station and normal university station of Guiyang metro line 3 Phase I Project as the engineering background,and uses theoretical calculation and in-situ monitoring to compare and analyze and verify each other to consider its actual safety status.The stress characteristics of segments in soft soil layer and limestone layer are compared to ensure the safety of subway tunnel shield segments.

关 键 词：灰岩地层 地铁隧道 盾构管片 数值计算 

分 类 号：U231.3[交通运输工程—道路与铁道工程]