Characterization of Traffic Loads on Buried Pipeline for Life-cycle Management of Municipal Distribution System
Health monitoring of pipeline structures, which can provide a fast and reliable decision-making tool for life-cycle management of municipal distribution system, has attracted many interests in recent years.For the convenience of distribution and construction, most pipelines are buried under urban main roads frequently carrying heavy traffic.Vehicle load is one dominating factor that influences the structural condition of pipe lines in long-term service.By integrating the framework of structural health monitoring (SHM), this paper develops an intelligent knowledge system for characterizing and modeling traffic loads in view of condition e valuation and residual life assessment of underground pipeline.Stress analysis of buried pipeline under sur face vehicle loads is carried out and the influence of various parameters including buried depth, wheel dis tance and soil stiffness is discussed.A field test is conducted for a water distribution pipe under a main road.Combined with the analytical results and the on-site measurements, a method for the characterization of traffic loads by using pipeline strain responses is proposed.For a certain vehicle, its axle weight on the pipeline is estimated in the form of additional soil pressure.Lane loads regarding traffic flow are character ized based on the data processing in a statistical way.
Suzhen Li Xinliang Li
College of Civil Engineering and the State Key Laboratory of Disaster Research in Civil Engineering, Tongji University, Shanghai, China
国际会议
哈尔滨
英文
73-82
2013-07-06（万方平台首次上网日期，不代表论文的发表时间）