摘要
为研究深基坑开挖过程对周围环境的影响,文章通过有限元建模分析了某工程深基坑开挖过程的变形特性,结合工程地质特征设计了支护方案,对比分析了有限元模拟和实际监测的深基坑变形规律。研究结果表明:不同监测点的水平位移随开挖深度的增加而增大,但增大幅度不均匀,呈波动式上升,这表明基坑开挖对边坡稳定性的影响较复杂,需综合考虑多种因素;深基坑土下岩层的位移变化与单一土层有所不同,岩层的强度和刚度对位移变化有一定的抑制作用。
In order to study the influence of deep foundation pit excavation process on the surrounding environment,this paper analyzes the deformation characteristics of an engineering deep foundation pit excavation process through finite element modeling,designs the support scheme according to the engineering geological characteristics,and compares and analyzes the deformation law of deep foundation pit between finite element simulation and actual monitoring.The results show that the horizontal displacement at different monitoring points increases with the increase of excavation depth,but the increase is not uniform and rises in a fluctuating manner,which indicates that the influence of foundation pit excavation on slope stability is complex and requires comprehensive consideration of multiple factors;the displacement change of the rock stratum under the deep foundation pit soil is different from that of the single soil layer,and the strength and stiffness of the rock stratum have a certain inhibitory effect on the displacement change.
作者
钟智勇
ZHONG Zhiyong(Chonfar Engineering and Technology Co.,Ltd.,Changsha 410116,Hunan,China)
出处
《工程技术研究》
2023年第18期60-62,共3页
Engineering and Technological Research
关键词
深基坑
有限元分析
变形监测
deep foundation pit
finite element analysis
deformation monitoring
作者简介
钟智勇,男,本科,工程师,研究方向为地质勘查。
