摘要
通过对东方路下立交工程现场监测数据分析,得到了基坑开挖卸荷引起下方隧道纵向变形的总体规律和时空效应规律,推导了考虑时空效应影响的隧道隆起经验计算方法。用公式S=A1*eA2/B可以简单估算开挖时间和开挖宽度下基坑开挖引起隧道隆起的最大值。
Based on measured settlement in the Dongfang Road Underpass Project, some genenral laws and time-space effects laws of tunnel longitudinal deformation, which is resulted from the above deep excavation, were obtained. The empirical formula, taking time-space effect into account, is derived to calculate the tunnel's upheaval, and the formula, S=A_1*e^(A^2/B), can be used simply to calculate the max upheaval of the tunnel.
出处
《地下空间与工程学报》
CSCD
2005年第4期619-623,共5页
Chinese Journal of Underground Space and Engineering
关键词
卸荷
回弹
残余应力
时空效应
深基坑
relief
rebound
residual stress
time-space effect
deep pit
