摘要
以某矿为例,对油页岩上覆覆岩结构类型及岩性作出分析,在得出上覆岩层为软弱类型的前提下,分别运用经验公式法和数值模拟法对多层油页岩重复开采的覆岩破坏高度作出预计,得出了导水裂缝带最大波及高度为44.03m和38.40m的2种结果,对比2种方法的预计结果,选取偏于安全的经验公式法预计结果作为4,5,6,7层油页岩开采的最终覆岩破坏高度。
After the overlying strata type of oilshales in a mine was analyzed to be soft,applying empirical formula and numerical simulation to predicting overlying strata failure height of repeatedly-mining close-distance oilshales,2 maximum water-connected fissure heights of were obtained to be 44. 03 m and 38. 4m. By comparing 2 results,the result from empirical formula was selected as failure height of 4th,5th,6th and 7th oilshales.
出处
《煤矿开采》
北大核心
2015年第1期78-81,共4页
Coal Mining Technology
基金
中国煤炭科工集团有限公司科技创新基金面上项目(2014MS004)
关键词
近距离多层油页岩
重复开采
覆岩破坏高度
close-distance oilshales
repeatedly-mining
failure height of overlying strata
