长寿命沥青路面设计指标研究.pdfVIP

第8 卷 第3 期 交 通 运 输 工 程 学 报 Vol1 8 No1 3 2008 年6 月 Journal of Traffic and T ransportation Engineering Jun. 2008 : 1671-1637( 2008) 03-0037- 06 崔 鹏, 邵敏华, 孙立军 ( , 200092) : 为了研究长寿命路面设 方法, 采用SHELLAI 等设 方法对国外提出的沥青层底拉应 变与土基顶面压应变标准进行了验证, 根据国外典型长寿命路面结构组合进行应变指标 算与统 分析, 并基于中国路面设 参数对长寿命路面设 指标进行修正经过统 分析, 验证了国外提 出的2 个长寿命路面设 指标的可行性, 并提出了适用于中国长寿命路面结构设 的控制指标: 沥 - 6 - 6 青层底拉应变不大于120@ 10 , 土基顶面压应变不大于280 @ 10 , 并对已有试验路结构进行了 力学分析分析结果表明: 试验路的沥青层底拉应变均小于 120 @ 10- 6 , 土基顶面压应变均小于 - 6 280@ 10 , 这表明试验路段满足长寿命路面指标 : 路面工程; 长寿命沥青路面; 设 指标; 应变分析; 结构组合 : U 416. 217 : A Research on design indices of perpetual asphalt pavement Cui Peng, Shao M in-hua, Sun L-i jun ( Key Laboratory of Road and T raffic Engineering of M inistry of Education, Tongji Universit y, Shanghai 200092, China) Abstract: In order to investigate the design method of perpetual asphalt pavement, the indices about tensile strain at the bottom of asphalt layer and the compressive strain at the top of subgrade w ere validated w ith SHELL design method, AI design method and so on, the strain indices w ere statistically analyzed according to the structure combination of representative perpetual asphalt pavement in foreign countries, and the design indices w ere modified based on the pavement design parameters in China, the tw o foreign design indices of perpetual pavement w ere approved to be reasonable, the control indices of structure design for perpetual pavement in China