某冲孔桩施工振动测试及地震波传播特征分析

Vibration test of a punching pile construction and analysis of the characteristic of seismic wave propagation

根据某冲孔桩施工引起的地振动测试结果,将各测点的数据按照最小二乘法进行回归分析,参照《动力机器基础设计规范》,提出场地能量吸收系数的概念,得出打桩地震动质点峰值振速呈指数衰减的结论,为类似的工程提供一定的参考。

Based on the vibration test results of a punching pile construction, the measuring point data is analyzed with the least square method. The concept of the energy absorption coefficient is put forward reference to the ＂ Dynamic machine foundation design specifica- tion＂ . The peak particle vibration velocity of ground vibration of punching pile construction attenuates exponentially, which provides some reference for similar kinds of projects.