基于块体化程度和云模型的露天矿边坡稳定性分级评价方法

发布时间：2018-05-25 01:33

  本文选题：露天矿山 + 边坡　； 参考：《矿冶工程》2017年04期

【摘要】：针对当前边坡稳定性分级方法不能全面刻画岩体的完整性且无法同时考虑影响因子随机性和模糊性的问题,引入了块体化程度概念,并基于云模型理论,提出了一种适用于露天矿岩质边坡的稳定性分级评价方法。该方法用块体化程度从三维空间角度描述岩体的完整性;将云模型应用到稳定性分级评价的各个环节,并借助层次分析法和有限差分数值模拟手段,可以充分考虑影响因子的随机性和模糊性,减小分级评价过程中人为因素的影响。结合工程实例,验证了该方法的可行性和有效性。
[Abstract]:In view of the problem that the current slope stability classification method can not fully describe the integrity of rock mass and can not consider the randomness and fuzziness of the influencing factors at the same time, the concept of block degree is introduced and based on cloud model theory. In this paper, a classification method for evaluating the stability of rock slopes in opencast mines is presented. In this method, the integrality of rock mass is described from the angle of three-dimensional space by using the degree of block, and the cloud model is applied to every step of stability grading evaluation, and the analytic hierarchy process (AHP) and finite difference numerical simulation are used to describe the integrity of rock mass. The randomness and fuzziness of the influencing factors can be fully considered to reduce the influence of human factors in the process of grading evaluation. The feasibility and effectiveness of the method are verified by an engineering example.
【作者单位】： 中国地质大学(武汉)工程学院;
【基金】：国家自然科学基金(41672317)
【分类号】：TD804
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本文编号：1931492