煤田水文地质条件探查的三维电阻率测井方法

通过三维电阻率测井方法应用于煤田的理论及探测方案的分析，并在淮南煤田两个岩溶陷落柱发育区进行了探测试验，探查距钻孔450m半径范围内，700—1200m不同埋深电阻率分布情况，查清了研究区深部水文地质条件，并通过6个地质钻孔揭露及连通抽水试验验证了此方法的可靠性及有效性。表明该方法在探查矿区深部水文地质条件方面具有明显的效果，通过地质钻孔与地面电极的有机结合，可查清深部水文地质特征。为深部受承压水水害威胁的煤炭资源的安全开采提供了一种很好的地球物理探测手段。

3-dimension Resistivity Log Method of Mine Hydrogeologic Condition Exploration

By analyzing theory and exploration program of 3-D resistivity log method applying in mines, exploration tests are operated in two karst collapse column developmental zones in Huainan mine, and electrical resistivity distribution is explored in plane scale of 450m radius to bore and vertical scale of 700 - 1200m burial depth of stratum, so deep hydrogeologic condition is known. 6 geologic bores data and connected pumping test has verified the reliability and validity of this method. It is shown that 3-D resistivity log method has obvious effect on deep hydrogeologic condition exploration in mines, and deep hydrogeologic characters can be clearly revealed by combining geologic bore with ground poles, which provide a effective geophysical exploration measure for safety exploitation of coal resources under threat of water hazards coming from deep confined aquifer.