井上下协同探测奥灰水治理技术研究

Study on Technology of Coal Mine Synergistic Detection of Ordovician Limestone Water

塔山煤矿8228工作面掘进期间发生突水,经音频电穿透、三维地震和CSAMT综合物探等一系列手段,最终分析工作面前方有一陷落柱和3条落差15~35 m的断层将奥灰水导入到工作面。为了保证8228工作面的安全掘进开采,研究分析了奥灰水治理方案,并制定了注浆方案和辅助措施,对陷落柱顶部进行充填和加固处理并对奥灰顶部、8^#煤层底板隔水层下部进行注浆加固,为8228工作面安全生产打下了扎实的基础,解放煤炭资源达1000万t,同时为大同矿区治理奥灰水获得宝贵的经验。

Water inrush occurred during the excavation of 8228 face in Tashan coal mine.The use of a series of means such as audio frequency electrical penetration,3D seismic and CSAMT integrated geophysical prospecting,a sink hole and three faults with 15 to 35 meters of subsidence in front of the final analysis work lead the Ordovician ash water to face.In order to ensure the safe driving and mining of 8228 face,the treatment scheme of Ordovician limestone water was studied and analyzed,the grouting scheme and auxiliary measures have been worked out.The top of the collapsed column was filled and strengthened,and the bottom of the water-proof layer of the roof of Ordovician limestone and No.8 coal seam was reinforced by grouting.On a solid basis,10 million tons of coal resources were liberated,and valuable experience was gained for Datong mining area to control the Ordovician limestone water.