摘要
采用监测分析和数值模拟相结合的方法,详细模拟了浅埋隧道施工的全过程,得到不同施工情况下围岩的应力应变状态,并深入分析围岩受施工扰动的应力变化规律和沉降变形趋势,在此基础上,采用非线性回归方法并考虑时间影响因素,得到了地表沉降的时空变形规律.
In order to reduce the negative impact of the environment due to shallow tunnel construction,the ground movement and deformation are estimated through simulating the entire process of the shallow tunnel construction,and the surrounding rock stress and strain in different situations are obtained.On this basis,the non-linear regression method for consideration of time factors is used to obtain the space-time deformation law of ground surface.This work provides a new way of estimating the effect of shallow tunnel construction on ground surface.
出处
《力学与实践》
CSCD
北大核心
2011年第1期43-47,共5页
Mechanics in Engineering
关键词
地下隧道
浅埋暗挖法
数值模拟
非线性回归
地表沉降
underground tunnel
mining method for shallow tunnel
numerical simulation
nonlinear regression
ground subsidence
