Research on the Application of Comprehensive Geophysical Exploration Technology in Sand Mining and Backfilling Survey of Yihe Rive
ZHAO Chengliang
SU Yuanyuan
WANG Ruxi
WANG Jigang
Abstract：Sand extraction and backfilling areas are characterized by discontinuous distribution,uneven backfills and under-compactness,which not only seriously affect groundwater recharge and destroy eco-logical environment,but also bring troubles to engineering geological investigation.Because it is difficult to carry out comprehensive and effective survey on sand mining backfill area only by drilling method,the distribution and variation characteristics of sand mining backfill area can be comprehensively obtained by selecting effective geophysical method from line to surface.This paper takes the backfilling area of sand mining along Linyi River in Shandong Province as the research object,carries out investigation for typical backfilling area of sand mining,employs geophysical prospecting method combined with high density resis-tivity method and seismic imaging method,lays out measuring lines in a network,obtains resistivity inver-sion section and waveform section of strata in the measuring area,and combines strata structure,hydro engineering geological characteristics of the research area,etc.This paper mainly studies the influence of sand mining Backfilling on formation electrical characteristics and waveform continuity,and accurately find out burial depth and spatial distribution pattern of sand mining backfilling area by drilling.This method combination provides a certain reference for similar exploration work and provides a rich exploration basis for engineering construction.
Keywords：Yihe riversand extraction backfillingcharacter of geophysical fieldshigh-density electrical methodseismic imaging method
Publication Date：2025-04-30
Online Publishing Date：2026-03-24(First online date of this platform, not the publication date of the document)
Pages：7( 30-36 )