【摘要】 论述了铁法矿区冲刷带发育的地质背景 ;指出比较常见和对煤层破坏程度较严重的冲刷带成因类型是同沉积河道冲刷带、沉积后河道冲刷带和继承性河道冲刷带 ,并阐明了它们的识别特征。在对铁法矿区煤系沉积相分析的基础上 ,利用煤层顶板砂体等厚图对大隆井田 4 # 煤层中的冲刷带进行了预测 ;揭示了铁法矿区煤层冲刷带的总体分布规律。更多还原

【Abstract】 The geological background of erosion zones in coal seams in Tiefa area is discussed. It is suggested that the genetic types of severely damaged zones in coal seams are related to synsedimentary stream channel erosion zones, postsedimentary stream channel erosion zones and inherited stream channel erosion zones, and their recognizable characteristics are represented. Based on analysis of sedimentary facies of coal measures in Tiefa mining area, the erosion zones in the coal seam No.4 in Dalong mining area are predicted by means of the isopach map of sand bodies of coal roof, and their general distribution regularity in Tiefa mining field is revealed.更多还原