地震断层上海底管线的适应能力研究  

Study on the adaptive capability of offshore pipelines against the seismic fault zone

作　　者：孙政策[1] 林钟明[1] 陈瑞峰[1] 

机构地区：[1]中国船级社,北京100006

出　　处：《中国造船》2005年第B11期186-193,共8页Shipbuilding of China

摘　　要：地震断裂带作用是埋地管线的主要破坏原因，海底管线的抗断裂带能力分析和计算仍然是工程设计中的一个薄弱环节。本文在充分考虑海底管线埋设环境特点及其在地震断裂带的受力状况下，给出了海底管线的抗断裂带错动适应能力校核公式，并结合一工程实例的计算和分析，说明海底管线的断层适应能量要明显高于陆地管线。最后结合理论分析，给出提高海底管线断裂带上适应能力的工程建议．本文的研究结果对加强海底管线的抗震设计能力，提高对海底管线的抗震适应能力的认识，指导海底管线工程施工都具有重要意义。The seismic fault displacement is a main mason of buried pipelines failure. Because of complexity of offshore environment, the analysis and calculation to capability of offshore pipelines against the seismic fault displacements are poor in the technical design of the pipelines. In this paper, a check equation of adaptive capability of the offshore pipelines against the seismic fault displacements is given, which is based on the characters of the soil surrounding offshore pipelines and the stress state of the pipelines acted by fault displacements, and then combined with a engineering project, it is shown that the adaptive capability of the offshore pipelines against the seismic fault displacements is stronger than the land pipelines＇ at the same buried depth. At last, some advices are given to improve the adaptive capability of offshore pipelines against the fault displacements. The results presented by authors have important meanings to strengthen the seismic design capability, improve knowledge to the adaptive capability of offshore pipelines against the fault and guide engineering operations.

关 键 词：海底管线 地震 断层 摩擦力 

分 类 号：P756.2[天文地球—海洋科学] P315.2