基于云模型的围岩稳定性分类

围岩稳定性分类具有模糊性和随机性特点。基于云模型理论探讨了围岩稳定性分类新模型,以综合分析围岩稳定性评价的模糊性和随机性。该模型依据围岩稳定性评价因子分类标准,计算各评价因子隶属于不同围岩稳定性等级的云数字特征,并结合评价因子权重和正向正态云发生器,得到待评样本的综合确定度,以确定围岩稳定性级别。实例应用结果及与其它评价方法对比结果表明,该模型应用于围岩稳定性分类是有效可行的,且具有计算过程简便,结果可靠的优点,也为其他类似问题分析提供了参考。

Classification of stability of surrounding rock using cloud model

According to the characteristics of fuzziness and randomness in the classification of surrounding rock stability, the cloud model is introduced to conduct the corresponding evaluation. The cloud of each factor on different stability levels is generated based on the evaluation indexes. Considering the measured evaluation index values and the corresponding index weights, the comprehensive degrees of certainty are obtained. The stability level is finally specified by the maximum certainty degree. By comparing the evaluation results from the proposed cloud model with those of a practical example and other methods, it can be concluded that the proposed cloud model is reliable and simple, and its feasibility and effectiveness are verified. It may provide a reference method for other similar problems.