鄂尔多斯深部矿区冲击地压防治思考

根据国家能源西进战略,鄂尔多斯矿区近年来新建了部分深部矿井,由于缺乏深部开采经验,其在矿井建设阶段未充分考虑冲击地压因素,导致矿井在开采过程中面临冲击地压灾害。通过对鄂尔多斯深部矿区冲击地压显现现场调研,分析了其冲击地压影响因素,提出了鄂尔多斯深部矿区冲击地压研究方向。鄂尔多斯深部矿区受开采深度、煤岩冲击倾向性、顶板特性、区段煤柱以及高强度开采等因素的影响,矿井面临冲击地压灾害。在借鉴中东部深井冲击地压灾害防治的基础上,该矿区冲击地压研究工作取得了一定成果,但仍应在成煤规律、覆岩运动、顶板疏放水诱冲、保护层开采、超大工作面冲击规律以及坚硬煤层卸压等方面进一步研究,从而实现鄂尔多斯深部矿区冲击地压灾害的科学防治。

Exploration on characteristics of rock bust in deep mining area of Ordos and its prevention

According to the national energy westward strategy,some deep mines have been newly built in the Ordos mining area in recent years.Due to the lack of deep mining experience,it did not consider the rock bust factor during the design phase,which caused the mine to face an rock bust disaster during the mining process.Based on the field investigation on the appearance of rock burst in the deep mining area of Ordos,the influencing factors of the rock burst were analyzed,and the research direction of rock burst in the deep mining area of Ordos was put forward.The deep mining area of Ordos is affected by factors such as mining depth,coal rock impact tendency,roof characteristics,section coal pillars and high-intensity mining and other factors.Based on the reference to the prevention of rock burst in deep boreholes in the central and eastern parts,some achievements have been made in the study of rock burst in the mining area,however,further studies should be made on coal forming law,overburden movement,roof drainage and water induced scour,protective seam mining,impact law of super large working face and pressure relief of hard coal seam,so as to realize the scientific prevention and control of rock burst disaster in deep mining area of Ordos.