跨孔超高密度电法CT在采空区中的应用

Cross- hole Ultra- high Density Electrical Method CT in the application of the mined -out area

跨孔超高密度电法是利用在平行钻孔中布置电极，通过一孔中的两个电极供电，其余电极同时测量的一种电法勘探方法。它不仅可以较准确地解决孔与孔之间的电阻率问题，而且对场地要求低、施工方便。本文针对大龙潭采空区的3个钻孔的施工作业充分证明了该方法在解决此类工程问题上的有效性和准确性。

Cross -hole Ultra -high Density Electrical Method is a electrical prospecting method in which electrodes are arranged in paralleling drilling to use the two electrodes in one of holes as power supply and the rest to measure at the same time. It is not only more accurate to solve the resistivity problem among holes but also is low requirement for site and convenient for construction. In the paper the results fully proved the effectiveness and accuracy of the method in dealing with the problem of this kind of project by the construction of three drilling in Dalongtan mined - out area.