基于未确知测度理论的台阶爆破效果综合评价

为了解决台阶爆破效果评价中因素的不确定性问题，运用未确知测度理论建立了台阶爆破效果的综合评价模型，并选取大块率、爆堆形态、松散系数、块度分布、根底率、后裂距离、振动速度、飞散距离、环境影响、炸药单耗、雷管单耗、延米爆破量等12项指标作为未确知测度模型的判别指标。根据实测数据，建立各指标的未确知测度函数，利用信息熵理论和置信度识别准则分别确定了各判别指标的权重和评价等级判定标准。最后得出台阶爆破效果的综合评价结果。用台阶爆破效果的综合评价模型对洪水台土石方平场工程4次台阶爆破效果进行综合评价，分析结果与实际情况完全相符。

Comprehensive evaluation of bench blasting effect based on uncertainty measurement theory

In order to solve the problem of uncertainty factors in the evaluation of blasting,the comprehensive evaluation model of bench blasting effect was established on the base of uncertainty measurement theory.The 12 main factors including the boulder yield,muck pile profile,loose coefficient,fragment distribution,toe rate,back crack distance,blasting vibration,flying distance,environmental impact,explosive consumption,detonator consumption,and blasted volume per meter were selected to act as the index of the uncertaininsure model.The uncertainty measurement function was obtained based on the in-situ data.Entropy theory and rules of credible recognition criteria were applied to respectively obtain the index weight of all indexes,and the comprehensive evaluation results of the bench blasting effect.And,the comprehensive evaluation results of the bench blasting effect were finally obtained.The 4 times bench blasting in Hongshuitai field-leveling projects were comprehensively evaluated,and the analysis results are consistent with the actual situations.