【摘要】 地面钻探资料表明,朱集东煤矿东二(11-2)盘区存在较大范围的11-2煤层不可采区,首采面两巷实际揭露了3条条带状煤层缺失带。通过对无煤带岩性、分布特征的分析,结合三维地震解释及部分属性分析资料,确认了该无煤带形成原因为砂岩冲刷,原圈定的不可采区范围得到了进一步修正,为工作面回采及盘区设计合理化提供了较可靠的技术依据。更多还原

【Abstract】 The ground drilling data indicates that,a large range of zone which can not be mining exits in 11-2 coal seam of the East 2(11-2) Panel of Zhujidong Coal Mine,while the 2 roadways of the first coal face disclose 3 none coal zones.Through the analysis of the lithology and distribution characteristic of the no coal zone and the three dimensional seismic survey data,it is clear that the sand erosion makes these none coal zones.The old distribution range can be further modified,which has provided reasonable basis for design of the coal face mining and seam panel.更多还原