中国地质调查2025，Vol.12Issue(5)：57-65,9.DOI:10.19388/j.zgdzdc.2023.339
基于微动H/V谱比法的土质基质厚度探测
Soil matrix thickness detection based on microtremor horizon-to-vertical spectral ratio:A case study of Naji Town in Arong Banner
摘要
Abstract
Soil matrix thickness is an important index in the investigation of ground substrate.The topography and geomorphology of Arong Banner are mainly low mountains and hills.The cost of using traditional drilling methods to investigate the soil matrix thickness is high,and the construction is difficult.While the microtremor horizon-to-vertical(H/V)spectral ratio method has strong anti-interference ability and flexible construction,which is convenient to complete areal investigation work.In this paper,the spectral ratio method was used to investigate the 1 km×1 km network.Combined with the spectral ratio curve and borehole data,the authors summarized the depth-frequency empirical relationship of the study area,and calculated the soil matrix thickness distribution in the area.The results show that thickness of the soil matrix in the area is estimated to be between 9～60 m.And it generally shows a trend of gradually deepening from northwest to southeast,influenced by ancient river chan-nels.The boundaries and extension directions of the ancient river channels can be delineated based on the undu-lating interfaces of bedrock.The study could provide references for determining the thickness distribution of soil matrix in low hilly areas.关键词
微动H/V谱比法/土质基质厚度/阿荣旗/地表基质Key words
microtremor H/V spectral ratio method/soil matrix thickness/Arong Banner/ground substrate分类
地质学引用本文复制引用
刘欢,李瑞红,路天昊,胡天义,安洪冰,冯欣..基于微动H/V谱比法的土质基质厚度探测[J].中国地质调查,2025,12(5):57-65,9.基金项目
中国地质调查局自然资源综合调查指挥中心地质调查项目"松嫩平原西北缘阿荣旗—鄂伦春南部地区黑土地地表基质调查(编号:ZD20220109)"资助. （编号:ZD20220109）
