两渡煤业下组煤二采区突水危险性研究

Study on the Risk of Water Burst in the Second Mining Area of the Lower Group of Liangdu Coal Industry

通过对山西汾西矿业(集团)有限责任公司两渡煤业下组煤带压区的底板突水危险性评价方法、下组煤采煤活动对底板破坏基本理论进行分析研究,并结合两渡煤业下组煤二采区煤综采工作面突水危险性实际勘查工作分析,获得了两渡煤业下组煤开采底板破坏深度实测值,评价了下组煤底板隔水层的阻水性能及二采区下组煤开采突水危险程度,为两渡煤业井田二采区10号煤层带压安全开采提供了科学依据。

Through the analysis and research on the risk assessment method of water inrush from the floor of the lower coal seam pressure area of Shanxi Fenxi Mining(Group) Co.,Ltd.in Liangdu Coal Industry,as well as the basic theory of the damage caused by the mining activities of the lower coal seam to the floor,and combined with the actual exploration work analysis of the water inrush risk at the coal comprehensive mining working face of the second mining area of the lower coal seam of Liangdu Coal Industry,the measured depth of the damage to the floor of the lower coal seam mining in Liangdu Coal Industry was obtained,the water resistance performance of the bottom waterproof layer of the lower coal seam and the risk level of water inrush during the mining of the lower coal seam in the second mining area were evaluated,providing a scientific basis for the safe mining of the 10 # coal seam under pressure in the second mining area of Liangdu Coal Industry.