基于模糊贴近度的下向进路侧帮矿体稳定性评价

在综合分析下向进路侧帮矿体特点及其稳定性影响因素的基础上, 参考大量实例及专家意见，建立了侧帮稳定性等级及其指标评分体系.在此基础上，基于模糊贴近度理论, 建立了下向进路侧帮矿体稳定性评价模型.在模型构建过程中，结合梯形分布函数和信息分配原理，建立各评价指标的隶属度函数，基于海明距离算法计算待评价模糊子集与标准模糊子集的贴近度，利用层次分析法确定各评价指标的权重，最后采用最大隶属度原则确定评价对象的稳定性级别.以江西某金属矿山某采场为例，利用构建的评价模型，进行了对比评价，经现场观察，评价结果与实际情况基本一致，说明所建方法是合理和可靠的. 

Fuzzy approach degree-based research on stability of ore body at underhand cut-and-fill drifts side

Based on analyzing the characteristics and major affecting factors of stability of ore body at under-hand cut-and-fill drift, and referring to a great deal of instances and expertise, an index evaluation system of stability of ore body was established. On this bases,a model to make an assessment of stability of ore body was established by using fuzzy approach. In the process,combining the trapezoidal distribution function and infor-mation distribution principle, a membership function of evaluation index was established, the weighing of e-valuation index was defined by AHP, and the fuzzy proximity was calculated between the evaluation target fuzzy set and the standard set by hamming distance. At last, the stability level of the object was defined by the maximum membership principle. Few examples of a mental mine in Jiangxi was evaluated by using this model. Through field investigation and comparative analysis, the evaluation results are basically consistent with the actual situation which indicates that the evaluation method is reasonable and credible.