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通过分析溪洛渡库区的地质概况和老滑坡的分布特征,总结出溪洛渡库区库岸老滑坡变形破坏的主要控制因素为地层岩性、岸坡结构和断裂构造,这些控制因素决定了溪洛渡库区库岸老滑坡的成因机制以滑移—拉裂为主。以溪洛渡库区近坝库岸的干海子老滑坡群为例,分析老滑坡复活的内外地质环境控制因素,并通过宏观地质评价和数值计算研究干海子老滑坡群在蓄水前后的稳定性。
By analyzing the geology of the Xiluodu reservoir area and the distribution characteristics of the old landslide, it is concluded that the main controlling factors of the deformation and failure of the old bank landslide in the Xiluodu reservoir area are formation lithology, bank slope structure and fault structure. These control factors determine the distribution of the Xiluodu reservoir area The causes of the old bank landslide slide - pull-based. Taking the Qianhaizidao landslide group near the dam bank in the Xiluodu reservoir area as an example, the control factors of the geological environment of the old landslide resurrection are analyzed. The stability of the Qianhaizi landslide group before and after water storage is studied by macroscopic geological evaluation and numerical calculation.