双行隧道盾构施工因素引起地表变位的影响分析  

Analysis on Influence Factors of Ground Settlement for Two-track Parallel Tunnel

作　　者：巩振伟[1] 傅国利 濮仕坤[1] 袁灿勤[1] 

机构地区：[1]南京工业大学,江苏南京210009 [2]山东临沂建设安全工程质量检测中心,山东临沂276000

出　　处：《施工技术》2008年第9期82-84,共3页Construction Technology

摘　　要：通过分析上海某双线平行隧道引起地表变位,并与单线隧道对比,发现双线平行隧道引起地表变位的施工因素的影响研究非常重要。基于本工程,就同向异步平行隧道的隧道间距、开挖面支护压力、土体弹性模量、土层损失率、隧道埋深等不同施工因素对地表变位的影响通过数值模拟进行了参数敏感性分析,以指导安全设计施工。By comparing ground settlement of two-track parallel tunnel with single-track tunnel in Shanghai, it shows that it is very important to analyze the construction factors influencing ground settlement of two-track parallel tunnel. Then, with parametric sensitivity analysis by numerical modeling, this paper analyzes the influence of some construction factors to guide the security of design and construction, such as tunnel space, supporting pressures of excavation face, soil elasticity modulus, ground loss ratio and tunnel depth etc.

关 键 词：隧道工程 双线平行隧道 地表变位 参数敏感性分析 

分 类 号：U456.3[建筑科学—桥梁与隧道工程]