During an earthquake, the additional hydrodynamic pressures exerted on the face of dams will be produced, the knowledge on which is essential for the anti-seismic design of new dams and the assessment of earthquake safety of existing dams.

• 地震时，库区的地面运动将会使坝体上游坝面承受附加的动水压力。 正确认识坝面动水压力对坝体地震反应的影响，对于新建大坝抗震设计和已建大坝抗震安全性评估都具有重要的意义。