深部开采底板奥灰水水害分析及防治技术研究  

Floor Ordovician Limestone Water Hazard and Prevention and Control Technology in Deep Mining

作　　者：徐薇 XU Wei(Otog Banner Energy Bureau,Ordos 016064,Inner Mongolia,China)

机构地区：[1]鄂托克旗能源局,内蒙古鄂尔多斯016064

出　　处：《能源与节能》2025年第2期113-115,共3页Energy and Energy Conservation

摘　　要：为降低深部开采水害影响,确保煤炭安全回采,结合山西省A煤矿回采的4^(#)煤层水文地质条件及底板奥灰水分布情况,对4^(#)煤层回采期间底板奥灰水突水路径及防治水面临的问题进行了分析,并提出了防治水技术措施。在开采4^(#)煤层时应注重区域治理,同时对奥灰水含水层靠近顶部边界的40 m范围进行改造,从而阻断底板承压水与4^(#)煤层采掘空间的水力联系通道;弱化含水层或将含水层改造为隔水层;采取强化区域治理、底板注浆、分区隔离开采等措施降低水害影响。采取上述防治水技术措施后,在4^(#)煤层回采期间底板突水问题得以较好地解决,实现了安全回采。In order to reduce the impact of water hazards in deep mining and ensure safe coal mining,combined with the hydrogeological conditions of the 4~# coal seam and the distribution of floor Ordovician limestone water in A Coal Mine in Shanx Province,the water inrush path of the floor Ordovician limestone water during the mining of the 4~# coal seam and the problem faced in water prevention and control were analyzed,and water prevention and control technical measures were proposed.When mining the 4~# coal seam,attention should be paid to regional governance,and at the same time,the 40 m range near the top boundary of the Ordovician limestone aquifer should be modified to block the hydraulic connection channel between the floo pressure water and the mining space of the 4~# coal seam;weakening the aquifer or transforming it into an aquitard;taking measures such as strengthening regional governance,grouting the floor,and isolating mining to reduce the impact of wate hazards.After adopting the above-mentioned water prevention and control measures,the problem of water inrush from the floo during the mining period of 4~# coal seam was effectively solved,achieving safe mining.

关 键 词：深部开采 奥灰水水害 突水路径 防治水 

分 类 号：TD745.2[矿业工程—矿井通风与安全]