某露天矿含空区边坡稳定性分析

本文以某矿山含空区边坡突然滑坡为研究背景,为了找出造成此次滑坡的原因,预测边坡的稳定性状态,探讨此次滑坡的机理以及空区对边坡稳定性的影响。本文利用FLAC和Geo-Slope软件进行数值模拟,结合现场位移监测数据来综合判断边坡的稳定性状态,分析滑坡的机理和空区对边坡的影响。结果表明:边坡目前处于稳定状态,但是在以后的开挖过程中,铁路平台附近边坡可能会发生局部滑坡,需要重点治理;上部边坡岩体比较破碎,加上雨水入渗和爆破振动等外部因素的干扰,是造成此次滑坡的主要原因;空区对边坡的稳定不产生影响。

Analysis on Stability of Slope With Goafs in a Open-pit Mine

In this paper, the research background is the sudden landslide of the slope with goafs in a certain mine is studied. In order to find out the causes of the landslide, predict the stability of the slope, explore the mechanism of the landslide and the effect of goafs on the stability of the slope. FLAC and Geo-Slope software are used for numerical simulation in this paper. Combined with the field displacement monitoring data to comprehensively judge the stability state of the slope, and analyze the mechanism of the landslide and the effect of goafs on the slope. The results show that the slope is in a stable state, but in the later excavation process, the slope near the railway platform may be local landslide, which needs the key treatment. Relatively broken rock mass in the upper slope, and the interference of external factors such as rain infiltration and blasting vibration is the main cause of the landslide. Goafs have no influence on the stability of the slope.