DOI: 10.11799/ce201606018
Simulation analysis on geological structure detection of collapse column in coal roadway excavation
HAO Ming-rui
Abstract：To detect the collapse column geological structure hidden behind the excavation face, dual-frequency induced polarization ahead-detecting technology ( DIPAT ) is applied, physical model of collapse column is built, which is simplified into equivalent circuit, according to the electrical parameters. The induced polarization model of collapse column is established based on Simulink, obtaining the resistivity and the PFE value curves. According to the consistency of the simulation detection results and the preinstalled parameters of the induced polarization model, the correctness of the simulation detection model is proved.
Keywords：coal roadway excavationcollapse columndual-frequency induced polarizationSimulinksimulation detection
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 58-60,64 )