穿越活动断层埋地管道的应变分析

Strain Analysis of Buried Pipelines Crossing Movable Fault

文中系统回顾了穿越活动断层埋地管道研究的历程,并分析比较了各种方法的特点、适用范围与不足,通过采用Newmark-Hall法和Kennedy法对管道应变进行了计算,并分析了不同参数对管道应变的影响程度,考虑埋地管道安全性以及建设的经济性,建议埋地管道敷设时以50°～80°穿越断层、管道埋深控制在1 m以内,最后针对当前的研究现状,提出对今后穿越活动断层埋地管道研究的建议和看法。

This paper makes a strain-based analysis of oil and gas pipelines crossing a movable fault.First,it systematically introduces diverse methods of the oil and gas pipelines across the movable fault and compares these methods,and then tells the scope and shortcomings.Second,it applies Newmark-Hall Method and Kennedy Method to calculate pipeline strain.Then,it discusses the impact of several parameters on the pipeline strain.Taking economical and safe factors into accout,it is optimal to lay pipes crossing the movable fault at an angle of 50°～80° and control pipe the depth within 1 m.In the end,the paper provides personal views on future oil and gas pipelines crossing the movable fault.