低桩承台驳岸在堆载作用下的水平位移变形规律  

Deformation regularity of horizontal displacement of low pile cap revetment under surcharge load

作　　者：刘术俭 顾宽海 张逸帆 LIU Shu-jian;GU Kuan-hai;ZHANG Yi-fan(CCCC Third Harbor Consultants Co.,Ltd.,Shanghai 200032,China)

机构地区：[1]中交第三航务工程勘察设计院有限公司

出　　处：《水运工程》2019年第8期171-176,182,共7页Port & Waterway Engineering

摘　　要：低桩承台驳岸结构是由挡土墙、承台、桩基3种结构组合而成,且承台底面位于地面以下的一种驳岸结构形式。分别采用竖向弹性地基梁法与有限元计算方法对该结构进行建模计算,验证两种计算方法的正确性。在此基础上,从堆载参数(堆载距离、堆载宽度、堆载大小)和桩基参数(桩长、桩径、桩间距)两个方面,研究在复杂堆载作用下,低桩承台驳岸结构水平位移变形规律。结果表明:堆载距离驳岸前沿线4倍挡土高度内,其对驳岸结构水平位移有影响,而桩长对水平位移影响较小。成果可为类似工程提供借鉴。Low pile cap revetment is a kind of structure constituted of pile foundation,cushion cap,retaining wall,which cushion cap is below ground.This paper uses elastic foundation beam theory and finite element method to design the revetment structure separately,and verifies the accuracy of two methods.On this basis,this paper studies on the variation of the horizontal displacement of the low pile cap revetment under the complex surcharge load by controlling surcharge load parameters(distance,width and value of surcharge load)and pile foundation parameters(length,diameter and spacing of pile).The results show that the horizontal displacement is affected by the surcharge load located at a range of four times retaining height to frontier of the wall,and the length of the pile has little effect on the horizontal displacement.The achievements can provide references for similar projects.

关 键 词：低桩承台驳岸 堆载 水平位移 

分 类 号：TV861[水利工程—水利水电工程] U656.3[交通运输工程—港口、海岸及近海工程]