黄金科学技术 ›› 2019, Vol. 27 ›› Issue (1): 80-88.doi: 10.11872/j.issn.1005-2518.2019.01.080
王旷1,李夕兵1,马春德1,2,顾合龙1
Kuang WANG1,Xibing LI1,Chunde MA1,2,Helong GU1
摘要:
针对目前岩爆倾向性中预测模型权重确定存在不足导致模型精度不高的现状,为更准确地预测岩爆倾向性,提出综合运用粗糙集理论中的代数观和信息观,确定属性最优权重,并修正岩爆倾向性与评价指标之间的关系,建立岩爆等级理想点矩阵。根据岩爆发生条件,选取岩石脆性指数、切应力指标和弹性应变能指数3项指标作为岩爆判别指标,以国内外20组典型岩爆数据为样本,建立改进的粗糙集—理想点法(RS-TOPSIS)岩爆倾向性预测模型,并应用该模型对玲珑金矿等工程实际进行了岩爆倾向性预测。结果表明:改进后样本预测精度相比于改进前有了显著提高,所建立的模型对实际工程的岩爆倾向性预测效果良好,预测结果更准确。
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