摘要
通过对影响胜利西二号露天煤矿内排土场边坡稳定因素分析,确立可能的滑坡模式。运用Bishop法、剩余推力法,定量分析了不同排土场基底形态、不同排弃高度和不同边坡角条件下的排土场边坡稳定性。结果表明:影响内排土场边坡稳定性的因素主要有基底形态、排弃物料和基底岩层的物理力学性质、大气降水以及边坡形态。当基底岩层倾角3°时,排弃高度130 m,其稳定性边坡角为12°。
Through analyzing the influence factors of slope stability in Shengli West No.2 Open-pit Coal Mine internal dump, the article establishes a possible landslide model. Using Bishop method and residual thrust method, the author quantitatively analyzes the dump slope stability under different dump basal form, abandoned height and slope angle. Results show that the main factors of affecting internal dump slope stability are basal form, abandoned materials , physical and mechanical properties of basement rock, atmospheric precipitation and slope form. When the inclination angle of basement rock is 3°, the abandoned height is 130m, and stability slope angle is 12°.
出处
《露天采矿技术》
CAS
2015年第9期5-7,11,共4页
Opencast Mining Technology
关键词
排土场
边坡稳定
影响因素
滑坡模式
极限平衡
dump
slope stability
influence factor
landslide model
limit equilibrium
