摘要
针对双排桩支护结构计算复杂、且无统一计算方法的特点,本文总结目前简化计算的几种模型,并提出了一种基于极限平衡法的永久边坡双排桩支护体系简化计算模型。以某地铁停车场边坡永久支护结构为算例,将简化模型的计算结果与有限元模型分析的模拟结果以及现场的监测数据进行对比分析。结果表明:简化计算模型所得水平位移及弯矩与有限元模型所得结果相差较小,位移和弯矩的曲线差值在10%~20%,二者计算结果变化规律一致,该永久边坡双排桩支护体系的简化计算方法是可行且可靠的。
In view of the complex calculation of double-row pile supporting structure and the lack of unified calculation method,several simplified calculation models are summarized,and a simplified calculation model of double-row pile supporting system for permanent slope based on limit equilibrium method is put forward.Taking a subway parking lot slope permanent support structure as an example,the calculation results of the simplified model are compared with the simulation results of analysis by the finite element model and the on-site monitoring data.The results show that:the difference between the horizontal displacement and bending moment obtained by the simplified calculation model and that obtained by the finite element model is small,and the curve difference between the displacement and bending moment is between 10%and 20%basically.The variation rule of the two calculation results is consistent.The simplified calculation method of the double-row pile supporting system for permanent slope is feasible and reliable.
作者
刘成军
王一兆
陈俊生
张旭群
张荣辉
陈仕洪
谭宜玮
LIU Chengjun;WANG Yizhao;CHEN Junsheng;ZHANG Xuqun;ZHANG Ronghui;CHEN Shihong;TAN Yiwei(Guangzhou Metro Design and Research Institute Co.,Ltd.,Guangzhou 510010,China;School of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510640,China;State Key Laboratory of Subtropical Building Science,School of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510640,China;South China Institute of Geotechnical Engineering,Guangzhou 510640,China)
出处
《应用科技》
CAS
2022年第3期106-112,共7页
Applied Science and Technology
关键词
双排桩
永久边坡
支护体系
极限平衡法
简化计算模型
有限元模型
模型计算
数据对比
double row pile
permanent slope
support system
limit equilibrium method
simplified calculation model
finite element model
model calculation
data contrast
