【摘要】 借助离散元法对爆炸挤淤形成堆石散体的振动密实过程进行了数值模拟。通过模拟散体单元相互运动、位置重排,在整体上表现出抛石堤的挤密效应,模拟结果与实际情况基本相符。利用离散元法可以清楚地得知所模拟的抛石堤在振动荷载作用下的运动及受力情况,抛石堤在各个时刻的状态也很明确。这充分说明采用动态离散元来模拟散体是可行的。更多还原

【Abstract】 The breakwater is constructed in deep silt by blasting method and the construction of it will be affected by blasting vibration. Successful numerical simulation is presented of the vibration compacting process on the breakwater made of loose media by distinct element method,and the result of numerical simulation is analyzed. The location and motion state of loose media are successfully simulated by distinct element method. The result of simulation is consistent with fact.更多还原