基于软土结构性对路基沉降的反分析研究
摘要:从软土的结构性出发,对软土较高的孔隙比、较强的透水性以及其压缩曲线的特点等进行分析总结,对公路路基沉降计算方法作进一步探讨。反分析方法在路基沉降方面的应用已经成为预测工后沉降的一种行之有效的途径。该方法是在空域和时域内对工程进行反馈分析的方法,是动态设计的最基本也是最重要的组成部分。它不仅包括在常规设计期间内进行的各种静态分析,而且包括随施工过程,根据工程现场实测的变形及其它可观测信息进行一系列反馈处理,它将设计与施工过程密切联系起来。为了较好地预测工后沉降,从沉降固结计算的角度对模型参数进行反分析,并反演设定参数,预测了沉降趋势,并与实际观测数据及理论计算数值进行比较,对实际工程做出评价,对工后沉降做出合理地预测。
Abstract:Embarking from the structural character of soft soil,this paper studied on the high void ratio,strong permeability and the compression curve of soft soil to discussed the settlement's calculation method in express way foundation. The back analysis method already became one effective way to forecast the later settlement. This method is to analysis and carries on the feedback to the engineering from room and time. It is a dynamic process. It not only includes various static state analysis carried on in normal regulations design period, but also includes the construction process, and according to the real settlement or other information carries on a series of feedback processing. It connects the design and construction closely. For estimating the later settlement,this paper analyzed the model parameters,and forecast the settlement curves. This paper also compares the real curves with the theory curves and forecast curves to evaluate the treatment methods.
中文标题：
基于软土结构性对路基沉降的反分析研究
Back Analysis of Road Foundation Based on Structural Character of Soft Soil
作者：
李献策1,樊绍峰2,张铁壮3
Li Xiance1,Fan Shaofeng2,Zhang Tiezhuang3
作者简介:李献策,1981年生,男,汉族,河北辛集人,助理工程帅。主要从事建筑工程领域。E-mail:licel981@126.com
通讯地址：
1. 华北电力大学, 河北保定 071000; 2. 中国天辰工程有限公司, 天津 300400; 3. 天津化工设计院, 天津 300193
1.NorthChinaElectricPowerUniversity,Baoding071000,Hebei; 2.ChinaTianchenEngineeringCorp,Tianjin300400; 3.TianjinChemicalEngineeringDesignInstitute,Tianjin300193,China
中图分类号:TU471.8
doi:10.3969/j.issn.1007-2993.2009.03.004
出版物：岩土工程技术
收稿日期:2009-03-24
关键词:软土地基,结构性,沉降,反分析
Key words:soft ground,structural character,settlement,back analysis
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