摘要
根据石炭井焦煤公司上保护层的开采条件,应用FLAC3D数值模拟方法模拟计算了3#煤层先行开采后对其下伏的4#、5#突出煤层的卸压影响程度、保护范围(走向、倾向卸压角)等。研究结果对石炭井焦煤公司进行上保护层开采效果考察工作以及安全开采4#、5#煤层具有重要的理论指导作用。
According to the upper protective layer mining conditions of Shitanjing Coking Coal Company,the FLAC30 numerical simula- tion method was used to calculate the pressure relief effect degree,the scope of protection (to pressure relief angle,inclination) etc of 3# coal seam mining in advance to underlying 4# ,5# outburst coal seam. The results of the study has an important theoretical guidance for the work of upper protective layers mining and the safety mining of 4# ,5# coal seam in Shitanjing Coking Coal Company.
出处
《中州煤炭》
2015年第3期5-8,共4页
Zhongzhou Coal
基金
中煤科工集团重庆研究院有限公司青年创新基金项目(2014QNJJ24)
关键词
突出煤层
上保护层开采
数值模拟
保护范围
outburst coal seam
upper protective layer mining
numerical simulation
scope of protection