本文将桩锤对桩的作用简化成一维波的传播问题，将桩振动向土中传播的问题简化成波动传播的轴对称空间问题．得出地面运动不仅按指数规律衰减，而且有波峰与波节的现象存在．所得结论改变了一贯认为简单衰减规律的概念．对实测中的测点布置、主动寻找波峰的位置有指导意义 This paper simplifies the action of the pile hammer on the pile as a one-dimensional wave propagation problem. The problem of propagating the pile vibration into the soil is simplified into the axisymmetric space problem of wave propagation. It is concluded that the ground motion not only decays exponentially, but also has the phenomenon of crest and wave nodes. The conclusions have changed the concept of a simple attenuation law. It is of guiding significance to the arrangement of measurement points in the actual measurement and the active search for the position of the peak.