物探与化探2026，Vol.50Issue(1)：180-187,8.DOI:10.11720/wtyht.2026.2417
小回路线圈瞬变电磁法在露天矿边坡中的探测应用
Application of the small-loop transient electromagnetic method in detecting open-pit slopes
摘要
Abstract
To thoroughly understand the geological characteristics of potential concealed structures in open-pit slopes induced by exter-nal factors such as mining activities and rainfall,this study conducted field detection tests on open-pit slopes using a small-loop transi-ent electromagnetic(TEM)system.Field tests demonstrate that the small-loop TEM system exhibited excellent vertical and horizontal resolution,effectively reflecting the electrical characteristics of concealed structures within slopes and the stratification interfaces of lithospheric materials.Accordingly,the small-loop TEM system proved fast and feasible in detecting open-pit slopes.Combined with layered spatially constrained inversion(SCI)technology,surface lithosphere investigations,and geological constraints of strata,the small-loop TEM system can qualitatively and quantitatively interpret the spatial locations and general morphological characteristics of subsurface concealed structures.These interpretations allow for the inference of the material composition and structural properties of the deep lithosphere and the identification of concealed structures in advance,thereby reducing the risk of open-pit slope failure.关键词
露天矿边坡/隐伏构造/小回路瞬变电磁/空间约束层状反演/岩石圈电性Key words
open pit slope/concealed structure/small-loop transient electromagnetic(TEM)method/layered spatially constrained inversion(SCI)/lithospheric electrical properties分类
天文与地球科学引用本文复制引用
石荔,明攀,耿晓明,陆俊,张盛行,董茂干..小回路线圈瞬变电磁法在露天矿边坡中的探测应用[J].物探与化探,2026,50(1):180-187,8.基金项目
国家重点研发课题(2024YFF1700705) （2024YFF1700705）
国家自然科学基金项目(52409165) （52409165）
中央级公益性科研院所基本科研业务费专项资金项目(Y423001) （Y423001）
