As mentioned in section 3.2, the di

如第3.2节所述，耗散过程与液化的经验有关，经历过液化一遍的地面的EPWP将更快地耗散。因此，如果地面再经历一次液化，地面刚度的恢复过程也将更快。例如，如图8所示，从振动台停止运动的时刻起，情况C1，C-2和C-3在相同地面上的刚度恢复分别持续约15s，13s和11.5s。

如第 3.2 节所述，耗散过程与液化经验有关，而经历多次液化的地面EPWP将更快地消散。因此，如果地面再次发生液化，地面刚度的恢复过程也会更快。例如，如图8所示，从震动表运动停止的那一刻起，C-l、C-2和C-3中同一地面的刚度恢复分别持续了约15秒、13秒和11.5秒。

As mentioned in section 3.2, the dissipation process is in connection with the experience of liquefaction, and EPWP of ground that has experienced liquefaction one more times will dissipate more quickly. Therefore, the recovery process of ground stiffness also becomes quicker if the ground experienced liquefaction one more times. For example, as shown in Fig.8, the recovery of stiffness in the same ground in Cases C-l, C-2 and C-3 lasted about 15s, 13s and 11.5s respectively from the moment when motion of shaking-table stopped.<br>