高温差区钢塑复合管道层间脱粘特性分析  

Interfacial Debonding Analysis of Liner Plastic Compound Pipe in High Temperature Difference Zone

作　　者：卢希 徐港[1] 高德军[1] 邹汉文 LU Xi;XU Gang;GAO De-jun;ZOU Han-wen(College of Civil Engineering & Architecture,China Three Gorges University,Yichang 443002,China;State Grid Hubei Power Transmission and Distribution Engineering Co.,Ltd.,Wuhan 430077,China)

机构地区：[1]三峡大学土木与建筑学院,湖北宜昌443002 [2]国网湖北送变电工程有限公司,湖北武汉430077

出　　处：《水电能源科学》2019年第3期80-83,41,共5页Water Resources and Power

摘　　要：针对埋设于高温差地区的钢塑复合管易出现层间脱粘的问题,基于粘聚区模型建立了钢塑复合管道层间脱粘的计算模型,通过结合强度试验获取并校准cohesive接触参数,应用该套参数建立DN50钢塑复合管道的有限元模型,对钢塑复合管道因受到融沉破坏而导致复合层脱粘的行为进行了仿真分析,给出了管道支座设置数量的合理化建议,为高温差地区钢塑复合管道的铺设提供了参考。The problem of interlayer debonding was easy to occur for the liner plastic compound pipe buried in high temperature difference zone.The interfacial debonding calculation model of liner plastic compound pipe was established based on cohesive zone model,and the contact parameters were obtained and calibrated by bonding strength experiment.The finite element model of the DN50 liner plastic compound pipe was developed by using this set of parameters,and the behavior of interfacial debonding was analyzed due to the thaw settlement damage.The rationalization proposal of the number of pipe support setting was given,which provides reference for the reliable laying of liner plastic compound pipe in alpine region.

关 键 词：衬塑钢管 粘聚区模型 有限元分析 融沉破坏 

分 类 号：TU744[建筑科学—建筑技术科学]