推导了冲激荷载作用下薄层单元法的基本计算公式，运用这一方法对土中的波动传播进行了模拟，并给出了计算实例。
The formulation of thin-layer element method was derived, the wave propagation process was simulated by the method, and a calculation example was given.
通过数值计算给出了地基表面振动的动力时程和三维波动场的分布，发现当移动荷载的马赫数接近或大于1.0时地基中产生明显的波动传播现象。
The time histories of ground responses and wave motions are presented, and it was found that significant wave propagations are generated when Mach number of moving load approaches or exceeds 1.0.
基于己建立的非饱和土中的波动方程，研究了瞬间扭转荷载作用下桩的动力响应问题。
Based on the wave equation in unsaturated soil, the dynamic response of a pile under transient torsional loading was theoretically investigated.
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