摘要
从工程应用角度出发,选取岩石坚固性系数f、岩石的波阻抗、炸药消耗量和岩体平均裂隙距作为煤矿岩巷岩体可爆性分级的评判指标,运用层次分析法确定各影响因素的权值。通过扩展的最小二乘法准则构造目标函数,建立灰色关联模型对岩巷岩体可爆性分级进行评判。实际工程应用表明,分级评判结果较符合实际情况,对于煤矿岩巷的快速、安全掘进设计具有一定参考价值。
Based on the engineering application, rock consistence coefficient f, wave impedance of rock, explosive consumption and average crack spacing of rock mass were selected as indexes for classification of rock mass blastability in coal mine rock roadway, applying AHP to determine the weight of each index. Evaluation was conducted ibr the blastability classification, utilizing grey correlation model based on the objective function constructed with extended least square method. Engineering application shows that, the classification results are loyal to actual situation and can offer references for the fast and safe drivage of rock roadway in coal mine.
出处
《煤炭工程》
北大核心
2014年第9期1-4,共4页
Coal Engineering
基金
国家自然科学重点基金资助项目(51134025)
