Shaanxi Coal and Chemical Technology Institute Company Limited State and Local United Engineering Research Center of Green Safety and High Efficient Coal Mining

为评价煤炭开采度对松散含水层的影响程度,针对松散含水层下伏采动土层,采用钻孔冲洗液消耗、水位观测、微电阻率扫描成像测井及物理模拟等手段,揭示了煤炭开采导水裂隙在土层中的发育规律。研究结果表明:物理模拟试验发现导水裂隙带发育至土层,裂采比28.9。现场实测发现微电阻率扫描成像测井识别完整裂隙准确率100%,识别的裂隙判定裂采比为28.2,与模拟结果吻合。

in order to evaluate the coal mining degree ffected to the loose aquiferaccording to the mining sol layer underied the looe aquifer,the drlling fuid consumption.water able observation.,microres stity scan inaging logging ,physcal simulaton and other means were applied to shoiw the development aw of the wae fow cracks in the soil layer during the cal mining operation. The study resuts showed tat thephysical s imulaton experinent found that the wate fow crack zone developed to the sail ayer and the cracking and mining ratio was 28.9.The site measurement showed that the identifed acuracy of the completed cracks was100% by miero resistivity scan imaging logging. The identified cracking and mining ratio of the crack adjustment was 28.2,which was fiting with the simulation results.

国家重点基础研究发展计划(973计划)资助项目(2014CB047100)；