急倾斜煤层深部开采的相似模拟试验和数值分析

Similarity Simulation Test and Nume rical Analysis on Deep Mining of Steep Coal Seam

运用实验室相似模拟试验和FLAC程序,对南桐矿务局东林煤矿的二一区4#和6#层煤的开采进行了研究,得到了二一区开采的岩移基本规律和地表移动与变形特征,绘出了二一区垂直剖面的位移场、应力场和速度场,对现场开采具有一定的指导作用。

Study was made on the extraction of No.4and 6coal seams in No.21minin g district with similarity simulation test and FLAC program,th e basic regularity of rock displacement and the deformation ch aracteristics of ground surface movement in this mining district were obtained and the displace-ment field,stress field and velocit y field in the vertical cross section of this mining district were drawn out,which have guiding sense for the mining of coal mines.