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引言1971年2月9日加利福尼亚州圣费尔南多地震(6.6级)时,下圣费尔南多坝(简称下坝)的上游坡发生了大滑坡,为此临时撤退了下游8万多居民以策安全。在这次地震中,上圣费尔南多坝(简称上坝)也有滑坡,向下游滑移1.5米。两坐坝离地震能量释放的主要地只有几英里。以前的研究已经得出结论,下坝滑坡的主要原因在于地震末期靠近坝基和粘
Introduction The February 9, 1971 San Fernando, California earthquake (grade 6.6) resulted in a large landslide on the upper slope of the Lower San Fernando Dam (hereinafter referred to as the lower dam). As a result, more than 80,000 residents in the downstream have been temporarily evacuated for safety reasons. In this earthquake, the San Fernando Dam (also known as the upper dam) also landslide, slipped downstream 1.5 meters. The two dam dams are mainly a few miles from the earth’s energy release. Previous studies have concluded that the main reason for the landslide of the lower dam lies in the proximity of the dam foundation to the dam at the end of the earthquake