摘要
目前越来越多的基坑工程位于已建地铁隧道之上或两侧 .近距离基坑开挖土体卸荷势必引起隧道的位移变化 ,因此如何预测和控制隧道变形、确保隧道使用安全日趋重要 .为此研究了处于软土基坑之下的地铁隧道的位移变化规律 ,分析了基坑工程中时间、空间效应对隆起的影响规律 ,提出了时间、开挖宽度影响系数 。
More and more excavation projects are built above or adjacent to the tunnel,which,in such a close distance,will induce tunnel's displacement.How to control the displacement and protect tunnel is a very important thing.This paper studies the displacement rule of tunnel under excavation,the influence of time and space on the heave during the excavation,and proposes the affection coefficient of time and of excavation width as well.The paper also deduces theoretically a simple,convenient and feasible method of calculating tunnel's displacement in unsiderration of the influence of excavation construction.
出处
《同济大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2001年第5期531-535,共5页
Journal of Tongji University:Natural Science
