Application of AMT in Exploration of Karst Ground Collapse in Mining Area
Ground collapse is one of the common geological disasters,which has the characteristics of concealment,randomness,sudden occurrence,etc.These characteristics often make the safety of personnel and property losses greater.A certain salt mining enterprise used the double well horizontal drilling connection water solution method to mine mirabilite ore.The connection to the inlet formed a phenomenon of surface collapse and deformation,causing several residential buildings to become dangerous,seriously threatening the safety of people's lives and property.After consulting materials and conducting surveys,the Audio-frequency Magnetotellurics(AMT)was selected to explore the hidden disaster prone areas underground.This project is taken as an example to introduce the application of AMT in ground subsidence exploration,and briefly describes its working principle and field work methods.The exploration conclusions have been strongly proven by later drilling verification,which can provide a basis for the next step of disaster management and ground restoration.
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