【摘要】 根据实际观测资料研究了泉州市区的地脉动特征以及脉动频谱特性与场地有关参数之间的关系。结果表明,地面脉动卓越周期的变化与场地土层构造有关,与场地工程地质条件的变化相对应。测试结果反映了地基土刚度(剪切波速)的变化与场地覆盖层厚度的大小有关。认为覆盖层厚度是影响地脉动卓越周期的重要原因。更多还原

【Abstract】 Based on the observation data of the earth pulsation in Quanzhoucity, the microtremor feature and the relationship between its spectrum character and relative parameters in site is studied. The result shows that the predominant periods of the earth pulsation are related to soil formation of site, corresponding to engineering geological condition. The test result reflects the varity of thickness of covered soil and rigidity(shear wave velocity) of ground soil in site. Moreover,it is thought that the thickness of covered soil is one of the important factors affecting the predominant periods of the earth.更多还原