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由于矿山岩体的复杂性,影响露天矿山边坡稳定性的诸种因素均难以精确观测。根据露天矿山工程实际情况,本文主要考察风化破碎的一类岩质边坡失稳问题;把矿山岩体视为宏观均质各向同性介质,依此建立评价边坡稳定程度的力学和数学模型,计算边坡的破坏概率。为此,文中对破坏概率的计算问题给出了一种新的数值方法,进而可对边坡破坏概率进行定量地计算分析,为评价边坡稳定性提供科学之依据。
Due to the complexity of the mine rock, various factors affecting the stability of the open pit slope are difficult to accurately observe. According to the actual conditions of the open-pit mine project, this paper mainly investigates the problem of instability of a type of rock slope with weathering and crushing; considers the mine rock mass as a macroscopic homogeneous isotropy medium, and establishes a mechanical and mathematical model for evaluating the stability of the slope. Calculate the probability of failure of the slope. For this reason, a new numerical method is given to calculate the damage probability, and then the slope failure probability can be calculated and analyzed quantitatively, which provides a scientific basis for evaluating slope stability.