管道穿越断层最佳交叉角度研究  

Study on optimal crossing angle of pipeline passing through fault

作　　者：杨汗青[1] 郭恩栋[2] 赵宇[3] 王琼[4] 刘智[2] 

机构地区：[1]中国石油集团工程设计有限责任公司西南分公司,四川成都610017 [2]中国地震局工程力学研究所,中国地震局地震工程与工程振动重点实验室,黑龙江哈尔滨150080 [3]中国科学院水利部成都山地灾害与环境研究所,四川成都610041 [4]哈尔滨学院,黑龙江哈尔滨150080

出　　处：《世界地震工程》2012年第4期11-16,共6页World Earthquake Engineering

基　　金：管道工程特殊地段应变设计和工程措施研究(CPE-2011-06)

摘　　要：基于MIDAS结构分析软件,采用大变形壳有限元方法分析了大口径油气管道在断层位错作用下的应变响应。考虑管道与土体的非线性和管土耦合作用,系统分析了不同断层类型下不同交叉角度对管道应变的影响,得到了断层与管道的交角对管道应变响应的影响规律和变化曲线,并在此基础上,总结得到了不同覆盖土层厚度下管道穿越断层的最佳交叉角度。Based on structural analysis software MIDAS, the strain response of large diameter oil and gas pipeline under dislocation of faults was analyzed by large deformation shell finite element method. Considering pipeline-soil coupling and material nonlinearity of both pipeline and soil, the influence of different crossing angles on the pipeline response in different types of earthquake fault was analyzed systematically, the influence law and variation curve of strain response of pipelines for different crossing angles were acquired. Based on the results, the optimal crossing angle of oil - gas pipeline passing through earthquake fault at different cover thickness is obtained.

关 键 词：管道 断层 管土耦合 最佳交叉角度 应变响应 

分 类 号：U442.55[建筑科学—桥梁与隧道工程]