考虑桩-土相互作用单桩载荷试验数值模拟分析  

Numerical Simulation Analysis of Static Load Test of Single Piles Considering PileSoil Interaction

作　　者：王立超 李建光[1] Wang Lichao;Li Jianguang(AVIC INSTITUTE OF GEOTECHNICAL ENGINEERING Co. LTD,beijing 100098)

机构地区：[1]中航勘察设计研究院有限公司,北京100098

出　　处：《工程技术研究》2018年第13期59-60,共2页Engineering and Technological Research

摘　　要：本文以钻孔灌注桩单桩抗压静载试验为基础,结合北京地区典型的土层力学性质,应用Midas GTS NX三维有限元分析软件对钻孔灌注桩桩—土相互作用进行了三维仿真模拟,研究了桩-土相互作用、荷载的传递规律、单桩竖向抗压极限承载力的确定等,该研究进一步揭示了桩-土相互作用的实质,为在无桩基静载试验条件下确定单桩承载力提供了一个切实可行的办法,也为桩-筏-基础沉降协同分析提供参考依据。In this paper,the3-D finite element analysis software of Midas GTS NX was used to simulate the interaction between pile and soil,which based on the compressive static load test of single piles and the typical soil mechanics properties in Beijing.The pile-soil interaction,the law of load transfer and the determination of vertical compressive ultimate bearing capacity of single piles were studied.The study further reveals the essence of the pile-soil interaction and provides a practical and feasible method for determining the bearing capacity of a single pile without the data of pile static load test.It also provides a reference for the pile-sluice-basis settlement analysis.

关 键 词：有限元法 桩-土相互作用 单桩极限承载力 

分 类 号：TU473[建筑科学—结构工程]