The seismic stability analysis shows that the earthquakes are the main causes to quicken the spillway to break down. 然后考虑地震荷载进行结构抗震稳定分析，结果表明地震是加速溢洪道坝段失稳的重要原因。
The requirements for fortification against earthquakes,which shall be drawn up on the basis of the results of seismic safety evaluation,shall be fulfilled. 并根据地震安全性评价的结果，确定抗震设防要求，进行抗震设防。
