基于集对联系数的围岩稳定性组合评价模型研究

Study on A Combined Evaluation Model of the Stability of Surrounding Rock Based on Connection Number

为降低围岩稳定性评价风险,在单项评价的基础上探讨了围岩稳定性组合评价模型。首先将单项评价模型两两构建为集对,其次基于正态分布理论确定集对关系准则,再次利用集对联系数定量刻画单项评价模型间的确定性与不确定性关系,获得组合权重系数。最后构建出围岩稳定性组合评价模型。应用表明,该模型能够合理有效地降低围岩稳定性评价风险。

In order to reduce the risk of the evaluation of the stability of surrounding rock,a combined evaluation model of the stability of surrounding rock was discussed on the basis of single evaluation.Firstly,the individual evaluation models are constructed as set pairs,and then the set-pair relationship criterion is determined based on the normal distribution theory.The set-pair connection number is used to quantitatively characterize the relationship between the certainty and uncertainty of the individual evaluation models and obtain the combination weight coefficient.Finally,a combined evaluation model of the stability of surrounding rock is constructed.The application shows that the model can reasonably and effectively reduce the risk of the evaluation of the stability of surrounding rock.