摘要
本文以广州塔南广场项目的深基坑开挖为例,借助PLAXIS 2D有限元软件,根据不同材料特性分别选择合适的应力应变关系,评估基坑开挖过程中对连续墙的变形影响,从而确定最佳开挖方式。并对基坑开挖的理论结果与现场监测数据作比对。结果表明,准确合理地利用plaxis 2d软件,能够较为精准地预测大型深基坑开挖过程支护结构的变形情况,对基坑设计和施工有着重要的指导意义。
Taking the Guangzhou Tower South Plaza project in the center of the city as an example,with the help of PLAXIS 2D finite element software,suitable stress-strain relations are selected according to different material characteristics,the deformation of diaphragm wall during excavation is evaluated to determine the best excavation method.The theoretical results of foundation pit excavation are compared with the field monitoring data.The results show that the application of plaxis 2D software can accurately predict the deformation of retaining structure during the excavation of large-scale deep foundation pit,which is of great significance to the design and construction of foundation pit.
作者
凌文轩
LING Wen-xian(Guangzhou First Construction Engineering Co.,Ltd.,Guangzhou 510000)
出处
《广州建筑》
2023年第3期77-80,共4页
GUANGZHOU ARCHITECTURE
基金
广州市建筑集团有限公司科技计划项目(2021-KJ027)、(2021-KJ014)。
关键词
逆作法
深基坑
数值分析
PLAXIS
变形
inverse method
deep foundation pit
numerical analysis
PLAXIS
deformation
