Moreover , based on routine research method on abutment stability , non - linear finite element shear strengthes reducing by step iteration method is put forward in this paper , which is also applied in the analysis of abutment stability of tengzigou arch dam successfully 在此基礎(chǔ)上,介紹了非線性有限元強(qiáng)度折減迭代解法,探討了復(fù)雜地基上拱壩整體穩(wěn)定安全度的評價(jià)方法,并應(yīng)用于藤子溝拱壩穩(wěn)定安全度評價(jià)。