露天矿山高陡边坡变形破坏的工程地质模型

我国的大多数大中型露天矿山已经或即将进入深部开采.随着边坡的加高加陡,露天边坡稳定性维护的难度和采场破坏的概率越来越大.由于矿体赋存条件的制约性,矿山边坡的变形破坏模式与地质构造特征、岩体结构特征的关系极为密切.本文通过系统地现场工程地质调查和实验研究,基本掌握了水厂铁矿的地质构造特征与工程地质条件.边坡变形破坏机理和主要破坏模式,建立了水厂铁矿高陡边坡地质模型,为采用极限平衡分析和数值模拟相结合的方法进行边坡稳定性分析和设计提供依据.

Engineering Geologcal Model of High-steep Slope Damagein Opencut Mines

Most of large and middle scale open-pit mines in China have reached deep mining. Along with the deeping and steepening of the slope, the difficulty to maintain stability of the slope and the probability of failure of the mining area are getting large and large. Due to complicated burring conditions of the ore-bodies in the open-pit mines, the failure modes of the slope are closely related to geological structures and rock mass characteristics. Through systematical field investigations, tests and studies, the tectonic features and general conditions of engineering geology, the mechanisms and modes of failure of the slope in Shuichang mine are basically understood. A geological model of the high and steep slopes in Shuichang open-pit mine is established, which provides a strong basis for stability analysis and optimum design of the slopes using numerical modeling and limiting equilibrium analysis methods.