城市道路地下管道对沥青路面结构影响的力学分析  

Mechanical analysis of asphalt pavement structure affected by underground pipeline of urban road

作　　者：方诗圣[1] 李宏卓 李贺才[1] 

机构地区：[1]合肥工业大学土木与水利工程学院,安徽合肥230009 [2]合肥市城乡建设委员会,安徽合肥230001

出　　处：《合肥工业大学学报（自然科学版）》2011年第4期561-564,共4页Journal of Hefei University of Technology：Natural Science

基　　金：合肥市重点工程建设管理局科技资助项目([2008]169)

摘　　要：文章通过典型沥青路面结构的三维有限元数值模拟,分别计算了在路面重力和车辆荷载作用下,地下管道埋深以及回填土模量变化对沥青路面的影响规律。在沥青路面自重荷载作用下,由于地下管道和沟槽的存在改变了道路结构的局部刚度,路表产生了差异沉降;在车辆荷载的作用下,分析了不同管道埋深和回填土模量对路面沉降和内力的影响规律,为市政道路管道上方路面设计和施工提供了理论参考。This paper establishes a three-dimensional finite element model of typical asphalt pavement structure for numerical simulation.Under the asphalt pavement weight and the vehicle load,the laws that the underground pipeline depth and backfill modulus change affect the asphalt pavement are analyzed.Under the asphalt pavement weight,the existence of underground pipelines and trenches changes the local stiffness of the asphalt pavement structure and causes the surface differential settlement.While under the vehicle load,the laws that the different underground pipeline depth and backfill modulus affect the surface settlement and internal forces are revealed.The study provides a theoretical reference for designing and constructing the municipal asphalt pavement structure on the top of the underground pipelines.

关 键 词：城市道路 地下管道 沥青路面结构 力学分析 

分 类 号：U416.01[交通运输工程—道路与铁道工程]