在滑坡探测中多阶模态瑞利面波的利用

目前,在瑞利面波勘探的资料解释中,主要考虑的是基阶模态面波。然而,在某些地质条件下,很难提取到完整的基阶模态面波频散曲线。高阶模态面波也包含丰富的地质信息,如果只提取基阶模态面波,将会有较大的误差。因此,在实测资料解释中,要综合利用基阶和高阶模态的面波,提取能量最大模频散曲线进行资料解释,才可以提高资料解释的精度。在蜈蚣岭滑坡的探测中,多阶模态瑞利面波的利用取得了很好的地质效果。

Application of Multi-modes Rayleigh Wave in Exploration of Landslide

At present,fundamental mode wave is considered in data analysis of transient Rayleigh wave prospecting.However,in some geological condition,it is difficult to get whole fundamental mode wave dispersion curves.High modes Rayleigh wave also includes much geological information,if only extract fundamental mode,it will have bigger error.Thus,in data analysis,we use fundamental mode and high modes together and extract energy-max dispersion curves in the geophysical exploration to improve the precision of data interpretation.In Wugongling landslide exploration,good geological results are obtained by using multi-modes Rayleigh wave.