饮用水管道寿命预测机理模型的分析  

Analysis of mechanistic models for lifetime prediction of drinking water pipes

作　　者：罗思敏[1] 于水利[1,2] 

机构地区：[1]同济大学环境科学与工程学院,上海200092 [2]同济大学污染控制与资源化研究国家重点实验室,上海200092

出　　处：《供水技术》2016年第3期1-6,共6页Water Technology

基　　金：国家水体污染控制与治理科技重大专项(2012ZX07403-001)

摘　　要：为了查验管道状况,优化饮用水管网的维护,减少漏水、管道破损甚至爆管等问题,研究人员开发了诸多饮用水管道寿命预测模型。饮用水管道腐蚀失效主要经历3个过程:管道材料腐蚀、机械强度减弱和管道最终失效。第一类管道寿命预测机理模型仅考虑管道材料腐蚀和最终失效;第二类管道寿命预测机理模型则完整地考虑管道腐蚀、机械强度减弱和失效3个过程。分析表明,第二类模型为管道寿命预测机理模型的发展方向,并指出腐蚀模型对管道寿命预测影响最大,有待于进一步研发更普适的腐蚀模型。Mechanistic models for lifetime prediction of drinking water distribution pipes are developed in order to evaluate pipeline situation, to reduce pipeline problems such as leaking, breaking and explosion thus to optimize network maintenance. There are three main processes of pipe corrosion failure： pipe corrosion, reduction of pipeg residual mechanical strength and final pipe failure. The first type of mechanistic models for lifetime prediction takes into consideration only the pipe corrosion and pipe failure. However the second accounts all these three processes. The second type of mechanistic models for lifetime prediction are believed to be potential for future development. Corrosion model have great impact on the modeling result and more sophisticated corrosion models are expected.

关 键 词：饮用水管道 寿命预测 机械模型 腐蚀模型 

分 类 号：TU991.33[建筑科学—市政工程]