The main component of this article is study arch - dams stress distribution in difference earthquake and difference water level with finite element analysis . and the study compare the adversed stress distribution on the position whether existed opening hollow areas and pier or not 在考虑了坝身开孔和闸墩的存在后，坝体应力场也将发生一定的变化，特别是在开孔及闸墩附近，与不开孔及无闸墩情况相比将会有显著的不同。
