填土控制对施工中软土路基稳定的影响分析  

Influence of filling control to the stability of soft soil embankment

作　　者：郑明新[1] 左威[1] 涂文靖[1] 吴刚[1] 但慧娟[1] 

机构地区：[1]华东交通大学道桥与岩土工程研究所,江西南昌330013

出　　处：《湖南科技大学学报（自然科学版）》2011年第1期48-51,共4页Journal of Hunan University of Science And Technology：Natural Science Edition

基　　金：国家自然科学基金资助项目(51068006);江西省科技支撑计划(2009BSB08701);江西省交通运输厅项目(2009c0002)资助

摘　　要：以彭湖高速公路K41+200段软土路堤填筑为研究对象,根据plaxis强度折减法与地下水渗流原理建立了分层填筑并考虑地下水渗流的有限元模型,进而分析了不同填土施工速度、填方高度、渗流与非渗流条件下软土路基的稳定性,得到了软土路基施工合理的分层厚度、分层间隔等参数,对于软土路基安全施工具有一定的指导意义.On the basis of plaxis strengthen reduction theory and principle of groundwater infiltration,embankment of K41＋200 along Peng-hu expressway was taken as the object to establish the FEM model of layer filling and groundwater seepage flow.Then,the stability of soft soil embankment in various filling construction speed,different height of embankment and in the condition of infiltration or not were analysed.Finally,the influence parameters of filling construction,such as thickness of filling layer and interval time of layer construction were put up,which lay on guidance for the filling of soft soil embankment.

关 键 词：填土控制 有限元强度折减法 稳定性 渗流 

分 类 号：TU472[建筑科学—结构工程]