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依托中亚天然气管道D线穿越F8活动断裂带工程,采用有限元研究方法,研究冻土区埋地管线在走滑断层位移作用下的变形问题。结果表明,随着断层位移增加,管道的变形和弯曲程度增大,管道在断层两侧存在应力应变集中。管道径厚比和内压对管道变形应变存在一定影响。
Relying on the D line of Central Asia Natural Gas Pipeline crossing the F8 active fault zone, the finite element method is used to study the deformation of the buried pipeline in permafrost zone under the strike-slip fault displacement. The results show that as the displacement of the fault increases, the deformation and bending of the pipeline increase, and the stress and strain of the pipeline concentrate on both sides of the fault. Pipe diameter ratio and internal pressure on pipe deformation strain has some impact.