考虑停机影响的软土盾构隧道施工变形性状分析  

Analysis of deformation behavior of shield tunnel in soft soil under construction considering the effect of shutdown of the shield

作　　者：何彦承 童磊[1] 刘兴旺[1] 姚宏波 HE Yancheng;TONG Lei;LIU Xingwang;YAO Hongbo(Zhejiang Province Institute of Architectural Design and Research,Hangzhou 310006,China)

机构地区：[1]浙江省建筑设计研究院,浙江杭州310006

出　　处：《四川建筑科学研究》2020年第S01期48-55,共8页Sichuan Building Science

基　　金：浙江省重点研发计划项目(2017C03020)。

摘　　要：综合归纳了盾构停机阶段对周边环境形成扰动影响的主要因素,依此建立了考虑停机工况的盾构逐环推进有限元模型。随后对某引水盾构隧道下穿杭州市某地铁盾构隧道的监测数据进行了分析,并结合施工过程中盾构停机的实际情况,探讨了停机阶段对上方既有盾构隧道的附加影响。本文采用考虑停机工况的盾构逐环推进有限元模型对该盾构隧道相互穿越工程进行了验证。This paper summarizes the main factors that affect the disturbance of the surrounding environment during the shutdown of the shield.The ring-by-ring finite element model of the shield tunnel considering the shutdown conditions is then established.Afterwards,the monitoring data of the shield tunnel of a water diversion tunnel under a metro line tunnel in Hangzhou was analyzed,and combined with the actual situation of the shield tunnel shutdown in the construction process,the additional effect on the existing shield tunnel above by shutdown of shield were discussed.This paper uses ring-by-ring finite element model of the shield tunnel considering the shutdown conditions to verify the tunnel interpenetration project mentioned above.

关 键 词：盾构施工 盾构停机 隧道相互穿越 

分 类 号：TU454[建筑科学—岩土工程]