单桩场地液化土横向流动的数值试验分析

英文篇名：Numerical test of lateral spreading of liquefied soil of single pile site
中文刊名：吉林地质
英文刊名：Jilin Geology
作者：韩明泽 ; 孙晶 ; 邵琪
英文作者：HAN Ming-ze1 ; SUN Jing2 ; SHAO Qi3 1 Jilin Institute of Geological and Mineral Exploration and Design Changchun 130012 ; Jilin ; China ; 2.Institute of Geological Sciences of Jilin Province ; Changchun 130012 ; Jilin ; China ; 3 Dalian University of Technology ; Institute of Geotechnical Engineering ; Dalian 116023 ; Liaoning ; China
中文关键词：单一流速 ; 横向流动 ; 单桩场地模型 ; 非线性数值试验分析
英文关键词：simple flow velocity ; laterally spreading ; model of single pile site ; nonlinear analysis of numerical test
出版日期：2010-12-15
机构：吉林省地矿勘察设计研究院;吉林省地质科学研究所;大连理工大学岩土工程研究所;
年：2010
期：04
出版单位：吉林地质

摘要

强震中,液化土体在重力作用下往往发生水平扩展流动,对桩基础造成了严重破坏,因此有关液化土体流动对桩的影响及其之间的动力相互作用,一直是岩土工程领域研究的热点。通过模拟振动台实验,将这一过程简化为三维的单桩模型进行计算。经过对某一固定流速土体流动的计算,分析得到液化土横向流动中自身的孔隙水压力、变形以及对桩的内力和位移的影响规律。
During strong earthquakes,liquefied soil under gravity frequently has horizontally spreading deformation which causes serious damages of pile foundations.Therefore,the influence of soil flow on pile-soil interaction and piles's earthquakes,liquefied soil under gravity frequently has horizont internal force and deformation is always the hot spots in geotechnical engineering.By simulating shake-talbe experiments,the three-diimensional single-pile model is simplified to the calculation of laterally spreading soil in unit velocity,during which the laws of pore water pressure,deformation and internal force,deformation are discussed.

引文

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