基于富水砂卵石地层的基坑施工监测技术数值模拟
Numerical Simulation of Monitoring Technology for Foundation Pit Construction Based on Water Rich Sand and Pebble Strata
祝李京1
作者信息
- 1. 武汉华中科大检测科技有限公司,湖北 武汉 430074
- 折叠
摘要
城市轨道交通施工中的基坑降水开挖始终存在一定的安全隐患,为避免出现安全事故,利用Abaqus二维化的有限元模型来对基坑施工实施监测,并利用实验验证其有效性.实验结果表明,坑外地表的沉降值对比实验中,模拟监测的数值和实际监测的数值误差维持在2%～5%之间,围护结构水平位移对比实验中的误差则维持在10%左右.
Abstract
There are always certain safety hazards in the dewatering and excavation of foundation pits during urban rail transit construc-tion.Therefore,in order to avoid safety accidents,the Abaqus two-dimensional finite element model is used to monitor the construction of foundation pits,and its effectiveness is verified through experiments.The experimental results indicate that in the comparison experi-ment of the settlement values of the surface outside the pit,the error between the simulated monitoring values and the actual monitoring values remains between 2% and 5%,while the error in the comparison experiment of the horizontal displacement of the enclosure structure remains around 10%.
关键词
富水砂卵石地层/基坑施工监测技术/Abaqus/轨道交通Key words
water rich sand pebble formation/monitoring technology for foundation pit construction/Abaqus/rail transit引用本文复制引用
基金项目
国家自然科学基金面上项目(51778262)
出版年
2024
NETL
NSTL
维普
万方数据