摘要
南昌市某深基坑采用咬合桩与内支撑支护设计,文章基于该案例,考虑深基坑开挖时土体产生的水平向土压力对支护结构产生的变形,采用有限元数值模拟对该设计方案进行对比分析,支护结构变形量的大小直接反映出基坑支护设计的安全可靠性。分析结果表明,该深基坑工程设计方案合理,数值模拟与深基坑设计变形数据较吻合,其土体计算参数合理,可为类似深基坑支护设计提供参考依据。
A deep foundation pit in Nanchang adopts the design of secant pile and internal support.Based on this case,considering the deformation of the support structure caused by the horizontal earth pressure of the soil during the excavation of the deep foundation pit,the fi nite element numerical simulation is used to compare and analyze the design scheme.The amount of the support structure deformation directly reflects the safety and reliability of the foundation pit support design.The analysis results show that the design scheme of the deep foundation pit engineering is reasonable,the numerical simulation is consistent with the design deformation data of the deep foundation pit,and the soil calculation parameters are reasonable,which can provide reference for similar deep foundation pit support design.
作者
樊俊锋
许岩剑
FAN Junfeng;XU Yanjian(Hydrogeological Brigade of Jiangxi Bureau of Geology(Jiangxi Survey and Design Institute Co.,Ltd.),Nanchang 330095,Jiangxi,China)
出处
《工程技术研究》
2024年第15期165-167,共3页
Engineering and Technological Research
关键词
深基坑
结构变形
支护设计
数值模拟
deep foundation pit
structural deformation
support design
numerical simulation
作者简介
樊俊锋,男,硕士,高级工程师,研究方向为岩土工程。
