伊敏一露天矿内排土对端帮稳定性的影响  

Influence of internal dumping on stability of end wall in Yimin open pits

作　　者：朱玉生[1] 曹守虎 

机构地区：[1]徐州建筑职业技术学院,江苏徐州221008 [2]山东银光化工股份有限公司,山东费县273400

出　　处：《岩土工程学报》2005年第9期1026-1032,共7页Chinese Journal of Geotechnical Engineering

摘　　要：运用FLAC程序,对伊敏一露天矿端帮边坡进行了数值模拟计算。通过对有、无内排土时端帮边坡变形和应力的分析,以及最大稳定边坡角的计算,说明内排土可以减小该矿端帮边坡的变形,提高其稳定性;在安全系数不变的前提下,可以提高该矿端帮边坡的最大稳定边坡角。从而可以减少剥离量或增加采出矿石量,降低剥采比,提高矿山经济效益。The slope model of the Yimin open pits was established and solved by FLAC program. Then the deformation and stress of the end wall was analyzed, and the results of no internal dumping was compared with those of internal dumping. Then the maximum stable angle of the end wall was calculated. The results demonstrated that the internal dumping could decrease the deformation of the end wall in the open pits and improve its stability, and increase its maximum stable angle at the same safety factor. So, using the internal dumping could decrease the waste volume or increase the production, reduce the stripping ratio, and improve the economic benefit.

关 键 词：内排土 端帮边坡 边坡稳定性 FLAC3D 数值模拟 

分 类 号：O319.56[理学—一般力学与力学基础]