冻土中输气管道的应力应变分析研究

Study on stress and strain analysis of gas pipeline in frozen soil area

冻害问题一直是寒区输气管道工程建设的重大难题。目前,我国多年冻土区管道工程建设实践和相关的设计施工经验还很缺乏,相关的研究更是少之更少。本文使用简化的冻胀模型对管土相互作用进行分析,解决了管-土相互作用的难题,为冻土地区输气管道设计提供了理论支持。

Freezing damage is difficult to be resolved for gas pipeline project in frozen soil area, where is short of the pipeline operation and engineering experience in china, let alone related research. A simplified frost heave model is used to analyze the frozen induced pipe-soil interaction to solve the problem. It will provide the technical support for gas pipe design at frozen soil area.