摘要
桩锚支护近几年来得到了越来越广泛的应用,但其理论尚欠完善。目前常用于桩锚支护结构的计算方法有静力平衡法、等值梁法、弹性支点法、逐层开挖支撑支承力不变法、有限元法、有限差分法等。本文以湖南长沙某桩锚支护结构边坡工程为研究背景,主要介绍等值梁法、弹性支点法以及有限差分法三种计算方法的计算原理以及其在工程实例中的应用。对比分析不同计算方法下桩锚支护结构体系桩体内力和变形的差异,并进一步分析产生这些差异性结果的原因,以便更好地根据工程实际情况选用合理的计算方法对类似工程进行设计。
Pile anchor support has been applied more and more widely in recent years,but its calculation and design theory is not advanced.At present,the static balance method,the equivalent beam method,the elastic support point method,the delamination excavation supporting force method,the finite element method and finite difference method are commonly used in the calculation of pile anchor support structure.In this paper,a slope engineering in Changsha,Hunan province is considered as the research background,this paper mainly introduces the equivalent beam method,the elastic support point method and finite difference method about their calculation principles and application in practical engineering.Analysis of the difference of pile internal force and deformation under different calculation method,and further analysis of the reasons for the differences results for choosing the more reasonable calculation method for similar engineering design according to the practical situation.
作者
虢希
李聪
曾立军
唐新建
林宇亮
Guo Xi;Li Cong;Zeng Lijun;Tang Xinjian;Lin Yuliang(China Construction Fifth Engineering Division Corp.,Ltd.,Changsha 410000,China;School of Civil Engineering of Central South University,Changsha 410000,China)
出处
《建筑结构》
CSCD
北大核心
2019年第S02期834-840,共7页
Building Structure
基金
国家自然科学基金面上项目(51678571)
国家自然科学基金面上项目(51878667)
湖南省自然科学基金面上项目(2018JJ2517)
中建五局土木工程有限公司技术开发委托项目(020115003G019).
关键词
桩锚支护
等值梁法
弹性支点法
有限差分法
内力与变形
pile-anchor supporting structure
the equivalent beam method
the elastic support point method
the finite difference method
Internal force and deformation
