土木与环境工程学报（中英文）2021，Vol.43Issue(1)：1-10,10.DOI:10.11835/j.issn.2096-6717.2020.082
平行隧道开挖引起场地沉降的透明土模型试验研究
Transparent soil model testing on ground settlement induced by parallel tunnels excavation
摘要
Abstract
Parallel tunnels are generally constructed in urban subways to facilitate the movement of traffic in modern cities.Common solutions for predicting settlement induced by the excavation of two parallel tunnels are based on the single tunnel case and the simplified superposition method is utilized to generate the deformation profile without considering the interaction between the two tunnels. In this study, transparent soil model tests were performed to visualize the surface and subsurface settlement induced by the excavation of two parallel tunnels in sandy ground.Several key factors influencing the interaction of the parallel tunnels,as well as the surface and subsurface settlement,were investigated,including the spacing between the two tunnels,the volume of ground loss and the depth at which the tunnels were buried.Then the relationship between volume of the ground loss and the settlement was established.It is hoped that this study can provide guidelines for the design and construction of urban parallel tunnels excavations.关键词
透明土/平行隧道/模型试验/地表沉降/地层沉降Key words
transparent soil/parallel tunnels/model test/surface settlement/subsurface settlement分类
建筑与水利引用本文复制引用
刘汉龙,钟海怡,顾鑫,向钰周,仉文岗..平行隧道开挖引起场地沉降的透明土模型试验研究[J].土木与环境工程学报（中英文）,2021,43(1):1-10,10.基金项目
Chongqing Construction Science and Technology Plan Project (No.2019-0045) （No.2019-0045）
Fundamental Research Funds for the Central Universities (No.2019CDJDTM0007) （No.2019CDJDTM0007）
Graduate Research and Innovation Foundation of Chongqing (No. CYS18024) （No. CYS18024）
