It is indicated that the dynamic amplification of abutment rock body and dam-water-foundation interaction should be considered in the aseismatic stability analysis for high arch dam abutment.
For the resistance and mountain body of Shuanghe arch dam is thin and weak, safety factor of abutment stability is low.
双河拱坝抗力体山体单薄，坝肩的稳定安全度均比较低。
3
Integral abutment means constructing top structure, abutment and pile foundation as a whole body. The pile foundation is steel H-pile, and can be deformed with abutment, having greater flexibility.