基于未确知测度理论的采空区稳定性分级

针对采空区复杂性和不确定性的特点,以未确知测度理论为依据,对采空区稳定性进行分级。确定了14项影响因子作为采空区稳定性的评判标准,并建立采空区稳定性评价体系。根据矿山真实数据建立不同因素的未确知测度函数,通过熵计算各影响因素的指标权重,结合置信度识别准确对采空区进行稳定性划分,为采空区治理提供理论依据。将该方法应用于玲珑金矿西山矿区25个采空区的稳定性分析,划分出1个Ι级空区,12个Ⅱ级空区,11个Ⅲ级空区以及1个Ⅳ级空区。研究结果表明,未确知测度理论科学可靠,能够较准确地分析采空区的稳定性,可以在矿山实际生产中推广应用。

Classification of goaf stability based on uncertainty measurement theory

For the complexity and uncertainty of goafs ,their stability is classified based on uncertainty measure-ment theory .14 factors were taken into account as the criteria for goaf stability evaluation and the system for goaf sta -bility evaluation was established .Uncertainty measurement function was established based on the in-situ data .Entropy theory was used to calculate the index weight of factors;and credible degree recognition criteria were used for the pre-cise classification of goaf stability ,providing theoretical basis for goaf treatment .This model was employed to analyze the stability of 25 goafs in Xishan Mining District of Linglong Gold Mine .1 Class Ιgoaf,12 ClassⅡ goafs,11 ClassⅢgoafs and 1 Class Ⅳgoaf were classified .The results show that the uncertainty measurement theory is reasonable , can analyze goaf stability in a relatively precise way and is worth promotion in mining operations .