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中文摘要：
在我国西部典型黄土地区分别进行连续和高密度（25 m×25 m）的地脉动观测,并分析所采集的信号,探讨了地脉动信号的时间稳定性及空间分布规律,利用地脉动水平和垂直方向（H/V）频谱反演地下黄土层的剪切波速度剖面,并与已有的钻孔波速资料进行对比.结果表明：内陆地区的地脉动信号具有良好的时间稳定性;在黄土覆盖场地,利用地脉动测试以获取地下剪切波速度构造的方法具有较好的适应性.
英文摘要：
Based on continuous microtremor survey and high-density microtremor survey respectively at the typical loess areas in the west of China,the time stability and space distribution of microtremor data were studied.The shear wave velocity profile of underground loess layer was obtained using the inversion method of H/V frequency spectrum of microtremor,and contrasting the existing wave velocity data of borehole at this region as well.The results show that the microtremor signal is stable in time range at inland areas of China,and microtremor survey is available and effective for obtaining underground shear wave velocity profile at deep loess sediment ground.
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