天然源面波法在堰塞体上的研究及应用  

Research and Application of Natural Source Surface Wave Method on Barrier Body

作　　者：熊友亮 高建华[1] 彭军[1] Xiong Youliang;Gao Jianhua;Peng Jun(Changjiang Institute of Survey Technical Research, Ministry of Water Resources, Wuhan Hubei 430011, China)

机构地区：[1]水利部长江勘测技术研究所,湖北武汉430011

出　　处：《工程地球物理学报》2022年第2期149-154,共6页Chinese Journal of Engineering Geophysics

基　　金：国家重点研发计划项目(编号:2018YFC1508500)。

摘　　要：堰塞体具有物质组成复杂,结构不均一的特点,给传统物探方法应用带来局限性。目前国内外有关堰塞体的研究资料极少,为研究清楚堰塞体物质结构组成,指导堰塞坝病险情处置,笔者在堰塞体上进行了相关实验。由于常规电法及地震法不适宜开展,而天然源面波法具有场地适应性强,勘探深度大,探测结果分辨率高的特点。本文选用天然源面波的方法,通过分析其适应性,研究其在不均匀堆积体上的实验效果。结果表明,天然源面波法在堰塞体上有较好的频散谱,也能满足勘探深度要求。天然源面波速度能够很好地反映堰塞体物质结构组成,面波速度高值对应大块径块石区,面波速度低值对应松散物质夹碎石。通过本次试验可以得到结论,天然源面波法在堰塞体上应用是可行的,其研究结果能为堰塞坝病险情处置提供有力的依据。The barrier body has the characteristics of complex material composition and uneven structure,which brings limitations to the application of traditional geophysical prospecting methods.At present,there are few research data about barrier body at home and abroad.In order to study the material structure of barrier body and guide the treatment of barrier dam disease,the author carried out relevant experiments on barrier body.Since the conventional electrical and seismic methods are not suitable for barrier body,the natural source surface wave method has the characteristics of strong site adaptability,large exploration depth and high resolution of detection results.This paper selects the natural source surface wave method on the barrier body,and study its experimental results in uneven deposit by analysing its adaptability.The results show that,the natural surface wave velocity can well reflect the material structure of the barrier body,the high value of surface wave velocity corresponds to large diameter rock area,and the low value corresponds to loose material mixed with gravel.It can be concluded from this experiment that the application of natural source surface wave method on barrier body is feasible,and the research results can provide a strong basis for the treatment of barrier dam disease.

关 键 词：天然源面波 堰塞体 物质结构 

分 类 号：P631.4[天文地球—地质矿产勘探]