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多拱梁法和有限元法是目前拱坝计算的两种基本方法，我们建立了一套比较完整的拱坝非线性多拱梁法和程序，首次把Saenz非线性应力应变关系引用到多拱梁法中，提出了拱与梁开裂后失效角的概念和计算方法．还提出了拱坝沿建基面滑动的整体失稳的计算方法，此时，可以考虑混凝土开裂、破坏、沿建基面滑动、分期施工、分期蓄水，以及逐步施加增量荷载，直到拱坝整体失稳，从而求得拱坝的整体安全系数．
Multi-arch method and finite element method are two basic methods of arch dam calculation. We have established a complete set of arch dam nonlinear multi-arch method and procedure. For the first time, Saenz nonlinear stress-strain relationship is referenced to multi-arch In beam method, the concept and calculation method of failure angle after arch and beam cracking are proposed. In addition, the calculation method of the total instability of the arch dam sliding along the foundations is also proposed. In this case, cracking, destruction of concrete, sliding along the built surface, staging construction, staging of water storage, incremental loading can be considered until the arch The whole dam instability, so as to obtain the overall safety factor arch dam.