煤巷围岩稳定性评价指标权重确定方法
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摘要
为了得到更准确的煤巷围岩稳定性评价指标权重,采用层次分析(AHP)和主成分分析(PCA)计算主、客观权重,再通过评价检验确定最优比例因子来计算组合权重。以58条样本巷道为研究对象,选取巷道顶板强度、煤层强度、巷道底板强度、直接顶高度和采高比值、巷道埋深、相邻煤柱宽度和直接顶初次垮落步距7个影响因素为评价指标,最终确定最优比例因子为0.6,得到指标权重依次为0.12、0.12、0.10、0.13、0.15、0.29和0.18。通过比较不同比例因子下评价结果与实测巷道围岩相对移近量的相关性发现:AHP和PCA相结合的主客观综合赋权法确定煤巷围岩稳定性评价指标权重的方法是可靠的,相对于单一的AHP或PCA确定权重更加准确。
In order to get more accurate evaluation index weights of stability of coal roadway surrounding rock, AHP and PCA are used to calculate subjective and objective weight, and then the optimal proportion factor is determined to calculate the combined weight by evaluation and test. Taking 58 samples of laneway as the research object, the paper selects 7 influencing factors as the roof strength of the roadway, the strength of coal seam, the strength of the roadway floor, the ratio of direct top height and mining height, the depth of the roadway, the width of the adjacent coal pillar and the first falling distance of the direct top fall, and finally determines the optimal ratio factor of 0.6, and the weights of the index are 0.12, 0.12, 0.10, 0.13, 0.15, 0.29 and 0.18.By comparing the correlation between the evaluation results of different proportions and the relative displacement of the surrounding rock, the subjective and objective comprehensive weighting method combining AHP and PCA to determine the weight of the stability evaluation index of coal roadway surrounding rock is reliable and more accurate than the single AHP or PCA to determine the weight.
In order to get more accurate evaluation index weights of stability of coal roadway surrounding rock, AHP and PCA are used to calculate subjective and objective weight, and then the optimal proportion factor is determined to calculate the combined weight by evaluation and test. Taking 58 samples of laneway as the research object, the paper selects 7 influencing factors as the roof strength of the roadway, the strength of coal seam, the strength of the roadway floor, the ratio of direct top height and mining height, the depth of the roadway, the width of the adjacent coal pillar and the first falling distance of the direct top fall, and finally determines the optimal ratio factor of 0.6, and the weights of the index are 0.12, 0.12, 0.10, 0.13, 0.15, 0.29 and 0.18.By comparing the correlation between the evaluation results of different proportions and the relative displacement of the surrounding rock, the subjective and objective comprehensive weighting method combining AHP and PCA to determine the weight of the stability evaluation index of coal roadway surrounding rock is reliable and more accurate than the single AHP or PCA to determine the weight.
引文
[1]张召千,徐明德,刘泉声.煤巷围岩稳定性加权平均评价方法研究[J].岩土力学,2009,30(11):3464-3468.
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[6]陶菊春,吴建民.综合加权评分法的综合权重确定新探[J].系统工程理论与实践,2001,21(8):43-48.
[7]宋苏苏,黄林,陈勇.基于粗糙集的土壤肥力组合评价研究[J].农机化研究,2011,33(12):10-13.
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[9]吕跃进.指数标度判断矩阵的一致性检验方法[J].统计与决策,2006(18):31-32.
[10]迟国泰,陈洪海.基于信息敏感性的指标筛选与赋权方法研究[J].科研管理,2016,37(1):153-160.
[11]王丽珍,黄跃飞,傅旭东.基于主客观组合赋权法的巴彦淖尔市生命体健康评价[J].应用基础与工程科学学报,2009,17(S1):18-27.
[12]靖洪文,吴俊浩,马波,等.基于模糊灰色系统的深部巷道围岩变形预测模型及应用[J].煤炭学报,2012,37(7):1099-1104.
[13]崔亮,雷学峰,赵飞虎,等.基于加权平均法的围岩稳定性评价研究[J].煤炭工程,2011(6):77-78.
[14]王壬,陈莹,陈兴伟.区域水资源可持续利用评价指标体系构建[J].自然资源学报,2014,29(8):1441.
[2]杨仁树,王茂源,马鑫民,等.煤巷围岩稳定性分类研究[J].煤炭科学技术,2015,43(10):40-45.
[3]邹喜正.煤矿巷道围岩稳定性分类[M].徐州:中国矿业大学出版社,1995.
[4]王洪德,曹英浩.基于改进变权物元可拓模型的围岩稳定性评价[J].中国安全科学学报,2013,23(8):23.
[5]查奇芬,董洁,陈祖功.主客观组合赋权法在科技成果转化评价分析中的应用[J].统计与决策,2009(16):152-154.
[6]陶菊春,吴建民.综合加权评分法的综合权重确定新探[J].系统工程理论与实践,2001,21(8):43-48.
[7]宋苏苏,黄林,陈勇.基于粗糙集的土壤肥力组合评价研究[J].农机化研究,2011,33(12):10-13.
[8]杨秀贵,仉淼,冯一鸣.改进层次分析法的滑坡灾害危险性[J].辽宁工程技术大学学报(自然科学版),2013,32(6):773-777.
[9]吕跃进.指数标度判断矩阵的一致性检验方法[J].统计与决策,2006(18):31-32.
[10]迟国泰,陈洪海.基于信息敏感性的指标筛选与赋权方法研究[J].科研管理,2016,37(1):153-160.
[11]王丽珍,黄跃飞,傅旭东.基于主客观组合赋权法的巴彦淖尔市生命体健康评价[J].应用基础与工程科学学报,2009,17(S1):18-27.
[12]靖洪文,吴俊浩,马波,等.基于模糊灰色系统的深部巷道围岩变形预测模型及应用[J].煤炭学报,2012,37(7):1099-1104.
[13]崔亮,雷学峰,赵飞虎,等.基于加权平均法的围岩稳定性评价研究[J].煤炭工程,2011(6):77-78.
[14]王壬,陈莹,陈兴伟.区域水资源可持续利用评价指标体系构建[J].自然资源学报,2014,29(8):1441.