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该文论述了甘肃省舟曲县南峪滑坡的过程和灾情.并从内因与外因两个方面对滑坡的成因进行了分析。指出:舟曲南峪滑坡是一个发育在断裂构造破碎带上的老滑坡,这次滑坡的范围仍在老滑坡体的边界内,滑前滑坡区一带共有四次大、暴雨,这对滑坡大规模下滑起了重要的诱发作用,其滑动的土石方总量约875万m ̄3,堵断白龙江达8h,横贯滑坡前缘的S313线有2km路基被毁,中断交通达40天;造成的危害十分严重。
This paper discusses the process and disaster of Nanyu landslide in Zhouqu County, Gansu Province. The cause of landslide is analyzed from two aspects of internal and external factors. It is pointed out that the Zhouqu Nanyu landslide is an old landslide developed on the fractured zone of the fault structure. The scope of this landslide is still within the boundary of the old landslide body. There are four large and heavy rains in the landslide area, The declining scale played an important inducing role. The total amount of sliding earth and stone was about 8,750,000 m 3 and the closure of Bailongjiang reached 8 h. The 2 km subgrade across the S313 line across the front of the landslide destroyed the traffic for up to 40 days. Very serious.