水泥混凝土路面基层顶面当量回弹模量的计算  

Calculation of Equivalent Rebound Modulus of Base Top Surface of Cement Concrete Pavement

作　　者：文畅平[1] 

机构地区：[1]邵阳学院城市建设学院,湖南邵阳422000

出　　处：《城市道桥与防洪》2006年第2期16-18,共3页Urban Roads Bridges & Flood Control

摘　　要：在94水泥混凝土路面设计规范中,基层顶面当量回弹模量Et是通过查图确定的,2002年的规范对此作了改进,但计算公式有6个,计算过程更复杂烦琐。为此,通过2002年规范提供的Et计算公式,计算了1280+175+960个实例,根据基层的非线性特征,用最小二乘法对计算结果进行回归,得到1个Et非线性回归方程。通过实例计算验证,得到的这个Et非线性回归方程完全能够满足水泥混凝土路面基层顶面当量回弹模量的计算要求。In No.94 cement concrete pavement design specification the equivalent rebound modulus E of base top surface is determined by looking for the drawings.In the specification in 2002 this is improved,but there are 6 calculation formulas with more complex calculation progress.Therefore,through Et calculation formula provided in the specification in 2002 it calculated 1280+175+960 examples and in accordance with non-linear characteristics of the base the calculation result is made a regression by the method of the least squares to get a Et non-linear regression equation.Et non-linear regression equation get by the example calculation,test and verification can fully meet the calculation requirement of equivalent rebound modulus of base top surface of cement concrete pavement.

关 键 词：水泥混凝土路面 道路基层 结构设计 当量回弹模量 非线性回归方程 归一化 

分 类 号：U416.02[交通运输工程—道路与铁道工程]