综合结构势下的路基沉降本构模拟分析  

Embankment settlement constitutive model Analysis based on the comprehensive structure potential

作　　者：衣君 卫宏[1] 吴小锋[1] 

机构地区：[1]海南大学土木建筑工程学院,海南海口570228

出　　处：《西安建筑科技大学学报（自然科学版）》2013年第6期864-869,共6页Journal of Xi'an University of Architecture & Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(51368017)

摘　　要：土体结构性的数学模型是21世纪土力学的核心问题,是决定土的性质的重要内在因素.基于综合结构势的概念,采用应力结构性参数和应变结构性参数,通过q=0和等p剪切试验,修正K-G模型.为检验模型的可靠性,以海口某实际工程为依托,应用修正的K-G模型进行模拟计算路基沉降,并与实测值进行对比,发现此本构模型适用于海南红粘土这一类土质,具有实际意义.The mathematical model for the structured soil is the key problem of soil mechanics in the 218＇ century, an im- portant internal factors for soil properties. In this paper, the stress of structural parameters and structural parameters of strain based on the concept of comprehensive structure potential is used to modify K-G model by q= 0 and P shear test. To checkout the model reliability, the modified K-G is used for the model simulation calculation of embankment settlement based on an engineering practice in Haikou and is compared with the measured values. It is found that this constitutive model is applicable to this type of Hainan red clay soil,with practical significance.

关 键 词：综合结构势 结构性 修正K-G模型 路基沉降 

分 类 号：U213.1[交通运输工程—道路与铁道工程]