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中国公路学报
CHINA JOURNAL OF HIGHWAY AND TRANSPORT
2007 Vol.20 No.2 P.18-22,50

数字化期刊

基于工程应用的膨胀土本构模型

韦秉旭  周玉峰  刘义高  郑健龙 

摘 要:采用侧限有荷膨胀试验,研究了膨胀土有荷膨胀率和上部荷载、终了含水量以及过程含水量之间的关系,据此推导出了可以用来计算膨胀土路堤随含水量以及上部荷载变化而变形的本构模型.研究结果表明:在初始含水量一定的条件下,有荷膨胀率与上部荷载半对数呈线性关系,终了含水量与上部荷载半对数呈线性关系,有荷膨胀率与过程含水量呈线性关系;该模型是利用室内常规试验可以得到的,能反映研究地区岩土体主要性状的应用型本构模型.
关键词:道路工程;膨胀土;有荷膨胀试验;本构模型;含水量
分类号:U416.167 文献标识码:A

文章编号:1001-7372(2007)02-0018-05

Constitutive Model for Expansive Soil Based on Engineering Application

WEI Bing-xu  ZHOU Yu-feng  LIU Yi-gao  ZHENG Jian-long 

基金项目:国家西部交通建设科技项目(2002 318 000 015)
作者简介:韦秉旭(1970-),男,陕西户县人,副教授,工学博士,E-mail:weibingxu555@163.com.
作者单位:韦秉旭(长沙理工大学,公路工程学院,湖南,长沙,410076) 
     周玉峰(长沙理工大学,公路工程学院,湖南,长沙,410076) 
     刘义高(长沙理工大学,公路工程学院,湖南,长沙,410076) 
     郑健龙(长沙理工大学,公路工程学院,湖南,长沙,410076) 

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收稿日期:2006年6月8日

出版日期:2007年3月31日

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