TUNNEL ELECTRICAL RESISTIVITY EXPLORATION METHOD CPABLE OF ESTIMATING THE GROUND STATE OF THE FRONT SIDE OF A TUNNEL USING AN ELECTRICAL RESISTANCE VALUE WHICH IS MEASURED IN A BLIND END OF THE TUNNEL WHEN EXCAVATING THE TUNNEL AND AN APPARATUS THEREROF

摘要

PURPOSE: A tunnel electrical resistivity exploration method and an apparatus thereof are provided to accurately estimate the thickness, the position, and the electric conductivity of a shattered zone of a single layer.;CONSTITUTION: An exploration apparatus comprises a plurality of sensors(10), a power supply(20), a switch controller(30), a resistance measuring unit(40), and a calculating unit(50). A plurality of sensors is each other separately installed in the front side of a blind end. The power supply supplies power to each sensor in order to measure an electricity resistance value. The switch controller changes a part into a source sensor which receives the power from the power supply and a part of rest into a receiver sensor among the sensors. The resistance measuring unit measures the electrical resistance value between the receiver sensors and the source sensor. The calculating unit estimates the thickness, the position, and the electric conductivity of a shattered zone of a single layer through the 3D electric field interpretation using inverse analysis technique.;COPYRIGHT KIPO 2012