煤矿矸石山边坡失稳的滑动位移  

Sliding displacement of slope instability of coal gangue

作　　者：尹小军 

机构地区：[1]黑龙江科技大学矿业工程学院,哈尔滨150022 [2]黑龙江科技大学黑龙江省煤矿深部开采地压控制与瓦斯治理省重点实验室,哈尔滨150022

出　　处：《黑龙江科技大学学报》2017年第4期400-403,共4页Journal of Heilongjiang University of Science And Technology

摘　　要：针对煤矿矸石山失稳滑坡问题,基于块体滑动分析法,提出了煤矿矸石山滑坡机理模型。该滑坡模型由两个滑动块体构成。假设滑动体为纯摩擦性材料,滑动过程中体积不发生变化。根据边坡安全因子,选取实际煤矿矸石山的相关参数,计算初始边坡安全因子和滑动过程中的块体位移。利用滑动块体安全因子和块体滑移位移可以反演分析任一时刻滑动块体的剪切强度,表明该方法分析煤矿矸石山边坡失稳的可行性。This paper is a response to the instability of coal gangue rock, one of the major safety problems in mining areas and proposes a new model behind coal gangue sliding, composed of two sliding blocks, based on the block sliding analysis method. Given that the blocks are purely friction material, the research points to no change in the volume of blocks during sliding. The study building on the slope factor of safety involves selecting the relevant parameters of the actual coal gangue and thereby calculating the initial slope safety factor and the displacement of the blocks during the sliding process. The inversion analysis of the shear strength of sliding blocks in any time using the factor of safety and the sliding dis- placement of the blocks verifies the feasibility of this method in analyzing the coal gangue.

关 键 词：矸石山 边坡失稳 滑动位移 临界高度 

分 类 号：TD824.7[矿业工程—煤矿开采]