【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。更多还原

【Abstract】 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.更多还原