摘要
运用Plaxis有限元软件对h形双排桩基坑支护体系的特性进行了数值模拟分析,结果表明后排桩悬臂段高度、双排桩间距等因素是影响基坑支护体系力学性状及坑边地表沉降的两个主要因素,宜根据基坑工程具体条件经计算比较后对它们选定合适的数值,以获得良好的技术和经济性能.本研究为推广应用h形双排桩基坑支护体系及其设计优化提供了参考依据.
With the numerical simulation for excavation, it was shown that the cantilevered height of the back row piles and the spacing between front and back row piles for the h-type double-row-piles support structure are two important factors to the internal forces and horizontal displacements for piles as well as the ground settlement nearby the excavation, and that they should be determined appropriately with calcu- lations to get a proper behavior for the support structure of excavation. This paper could provide a theoretical reference to optimize the design for the h-type double-row-piles system.
出处
《武汉大学学报（工学版）》
CAS
CSCD
北大核心
2016年第5期774-778,共5页
Engineering Journal of Wuhan University
基金
国家自然科学基金资助项目(编号:51379122)
关键词
基坑工程
h形双排桩支护
有限元分析
参数优化
excavation
h-type double-row-piles support
finite element analysis
parameter optimization
