石灰处理软土路基当量回弹模量换算新方法  

A New Calculation Method of Equivalent Modulus of Elasticity of Soft Soil Subgrade Treated by Lime

作　　者：袁文瑞[1] 李笑笑[2] 

机构地区：[1]河北工业大学土木工程学院,天津300401 [2]天津市海顺交通工程设计有限公司,天津300400

出　　处：《交通标准化》2014年第21期83-86,共4页Communications Standardization

基　　金：河北省高等学校科学技术研究项目(ZD2014099)

摘　　要：在分析了现行设计规范中当量回弹模量计算公式缺陷的基础上,通过大量计算分析,以等效弯沉的原则,回归出了荷载作用半径为15cm的换算公式。修正后的新公式适用于天津地区石灰土与原状软土模量比小于8且石灰处理厚度大于20cm的路基顶当量回弹模量换算。The calculation method of equivalent modulus of elasticity in present cement concrete pave-ment design specification is improper. According to the analysis of great amount of computing data, the new calculation method of equivalent modulus of elasticity is established based on the principles of equiv-alent deflection whose load radius is 15cm. The new formula is suit for that the modulus ratio of lime to soft soil is less than 8 and soft soil and the treated thickness is more than 20cm.

关 键 词：路基 弹性层状理论 等效弯沉 当量回弹模量 

分 类 号：U416.01[交通运输工程—道路与铁道工程]