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首页> 美国政府科技报告 >Demonstration Project - Mine Void Detection Time Domain Electromagnetic (TDEM) Surface Geophysical Method Lots Branch Tailings Impoundment Site Prenter, West Virginia. Final Report
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Demonstration Project - Mine Void Detection Time Domain Electromagnetic (TDEM) Surface Geophysical Method Lots Branch Tailings Impoundment Site Prenter, West Virginia. Final Report

机译：示范项目 - 矿井空洞探测时域电磁（TDEm）地表地球物理方法很多分支尾矿蓄水场地prenter，西弗吉尼亚州。最终报告

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摘要

This report presents the results of the results of a demonstration project of the Time Domain Electromagnetic (TDEM) surface geophysical method and the subsequent verification of the geophysical interpretation based on borings and imaging of parts of mine workings within the Lewiston Coal at the Lots Branch tailings impoundment site in Prenter, West Virginia. TDEM is a technique that offers the possibility of deriving electrical cross sections of the ground. The TDEM measurements were conducted as a companion technique to a DC resistivity survey, which also results in the mapping of electrical cross sections. The overall concept exploited for both techniques is that mine workings can be identified on the basis of conductive mine water, which will stand out as being more conductive than natural ground.

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