广东省柔性基层沥青路面设计弯沉计算参数研究  

Study on Calculation Parameters of Design Deflection for Asphalt Pavement with Flexible Base in Guangdong Province

作　　者：黄博彦 王钊 

机构地区：[1]广东晶通公路工程建设集团有限公司,广州510635 [2]广东华美加工程顾问有限公司,广州510627

出　　处：《广东公路交通》2012年第2期8-12,共5页Guangdong Highway Communications

摘　　要：通过分析现行沥青路面设计规范中设计弯沉计算公式的由来及在广东省的适用情况,结合广东省最早修建的几条高速公路沥青路面的路况资料,对柔性基层沥青路面设计弯沉相关计算参数进行了研究,标定了沥青路面设计弯沉计算公式。此外,通过力学分析计算广东省内常见的半刚性、组合式及柔性路面结构中柔性层的总厚度及层底弯拉应力的受力状况,提出了弯沉计算参数不同取值的适用条件。Through analyzing origin of actual design deflection calculation formula in specification for design of highway asphalt pavement and their applications in Guangdong Province, being combined with highway condition data of several highway asphalt pavement constructed earliest, study on calculation parameters of design deflec- tion for asphalt pavement with flexible base is conducted and the formula of asphalt pavement design deflection calculation is calibrated. By means of mechanically analyzing total thickness of flexible base and condition of flexural tensile stress in coarse bottom of semi-rigid base, composite base and flexible base pavement which are commonly used in Guangdong Province, the applicable situation for different values of deflection calculation pa- rameters is put forward.

关 键 词：沥青路面 设计弯沉 柔性基层 参数 广东 

分 类 号：U416.217[交通运输工程—道路与铁道工程]