强夯施工振动向外扩散中，因为强夯土体的内部有阻尼作用，振动强度会随着传播距离的增加逐渐减小，其会渐渐地随距离增加有一个衰减过程。  振动的三个主要参数分别为：振幅、频谱、持时，强夯振动衰减关注的主要是振幅随距离由强到弱的变化规律。振幅是指质点振动的速度、位移、加速度中A一个量的A值、峰值或者一定的有效值。 强夯振动研究中一般采用质点振动速度作为振动强度指标。
In the outward diffusion of vibration during dynamic compaction construction, due to the damping effect inside the compacted soil, the vibration intensity will gradually decrease with the increase of propagation distance, and there will be a gradual attenuation process with the increase of distance. The three main parameters of vibration are amplitude, frequency spectrum, and duration. The attenuation of dynamic compaction vibration mainly focuses on the variation law of amplitude from strong to weak with distance. Amplitude refers to the value, peak value, or a certain effective value of A in the velocity, displacement, and acceleration of a particle vibration. In the study of dynamic compaction vibration, the particle vibration velocity is generally used as the vibration intensity index.


强夯振动衰减规律研究主要依赖于强夯振动现场观测。按照一定的测点间隔在离开夯点一一定距离之外的场地上布置测线，在测点上设置振动传感器拾取测点的强夯振动。分析各个测点振动的频率和振幅，提取时域A振幅和不同频率成分的幅值，对振幅和距离的关系进行回归拟合，可以了解不同场地条件对应的强夯振动衰减规律。通过强夯振动频域分析还可以进一步揭示场地条件对强夯振动衰减规律的影响。
The research on the attenuation law of dynamic compaction vibration mainly relies on on-site observation of dynamic compaction vibration. Arrange measuring lines on the site at a certain distance from the compaction point at regular intervals, and set up vibration sensors at the measuring points to pick up the dynamic compaction vibration of the measuring points. Analyzing the frequency and amplitude of vibration at each measuring point, extracting the amplitude of time-domain A and the amplitude of different frequency components, and performing regression fitting on the relationship between amplitude and distance can help understand the attenuation law of dynamic compaction vibration corresponding to different site conditions. The frequency domain analysis of dynamic compaction vibration can further reveal the influence of site conditions on the attenuation law of dynamic compaction vibration.