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地震波影响的区域要比永久性地土移动所发生的区域广,破坏管道系统薄弱部分的可能性大;但是永久性地土移动比地震波产生的后果要严重得多。由地震引起的大规模永久性地土移动,如地表断裂、沙土液化、塌方等对输油管道的损坏最为严重。从管道损伤的角度来评价损坏的原因,对于规定地震危险等级和工程设施的定点都很重要。例举了1964年阿拉斯加、1971年圣费尔南多、1976年危地马拉和1987年厄瓜多尔发生的地震对石油设施的影响以及从这些地震中得到的教训。
Areas affected by seismic waves are more extensive than those where permanent earth movement occurs, and there is a high probability of damaging the weak parts of the pipeline system; however, permanent earth movement has far more serious consequences than seismic waves. Large-scale permanent earth movement caused by earthquakes, such as surface rupture, sand liquefaction and landslides, have caused the most serious damage to oil pipelines. From the perspective of pipeline damage to evaluate the causes of damage, for the provisions of the seismic hazard level and engineering facilities are very important. Illustrate the impact of the earthquakes on Alaska in 1964, San Fernando in 1971, Guatemala in 1976 and Ecuador in 1987, as well as the lessons learned from these earthquakes.