地震工程学报Issue(2)：410-414,5.DOI:10.3969/j.issn.1000-0844.2015.02.0410
遮帘式板桩码头地基地震液化破坏机理
Destruction Mechanism of Covered Sheet-pile Wharf Foundation under Seismic Liquefaction
摘要
Abstract
The all-covered type of sheet-pile wharf is a new type of sheet-pile structure,and research into its seismic performance is important for its design and construction.In this study, based on the FEM-FDM soil coupling calculation platform,the cyclic elastic-plastic constitutive model is introduced.The FORTRAN dynamic programming software is used for saturated sandy soil liquefaction numerical analysis.This software can effectively simulate saturated sand under earthquake dynamic nonlinear and large deformation and can also simulate sand liquefaction flow at the barrier of the pile and the front wall.The results are:under the action of earthquakes,the excess pore water pressures of liquefiable soils increase and there is large deformation due to hori-zontal flow;the horizontal damage to the front wall is greater than the vertical damage.The maxi-mum shear wall is located in the seabed and before the wall at the junction.The barrier pile is the location of the maximum shear displacement parallel to the bottom of the front wall.The rod ten-sion in the back increases gradually,while that in front reduces gradually.Through the analysis of sheet-pile wharf disasters caused by seismic liquefaction,the results of this study provide a refer-ence for seismic and liquefaction resistance design.关键词
遮帘式板桩码头/地震液化/前墙剪力Key words
covered sheet-pile wharf/seismic liquefaction/front wall shear分类
建筑与水利引用本文复制引用
韩小凯,曹雪健,唐小微,张西文,付培帅..遮帘式板桩码头地基地震液化破坏机理[J].地震工程学报,2015,(2):410-414,5.基金项目
国家高技术研究发展计划863资助项目(NO.2012AA112510) （NO.2012AA112510）
