| 改进脆弱性指数法在煤矿底板突水评价中的应用 |
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| 引用本文： | 陈建平,李金柱,王雪冬,刘垚.改进脆弱性指数法在煤矿底板突水评价中的应用[J].中国地质灾害与防治学报,2019,30(3):67-74. |
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| 作者姓名： | 陈建平 李金柱 王雪冬 刘垚 |
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| 作者单位： | 辽宁工程技术大学矿业学院 |
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| 基金项目： | 国家自然科学基金项目(51604140) |
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| 摘 要： | 针对传统的AHP型脆弱性指数法在权重确定方面的不足,采用熵权法对其改进,将熵权法计算的客观权重与AHP法计算的主观权重进行加权平均,综合确定各主控因素诱发突水的权重比例。在综合分析长平煤矿水文地质资料的基础上,应用GIS建立主控因素专题图并进行归一化处理,运用基于GIS的改进AHP型脆弱性指数法确定各主控因素权重,建立井田西部3号煤底板奥灰突水危险性评价模型。利用自然间断点分级法确定了分区阈值,将研究区按突水危险性的相对大小分为5个区域。评价结果符合实际,对煤矿安全生产具有重要的现实意义。
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| 关 键 词： | 煤层底板突水 脆弱性指数法 GIS 改进的AHP法 突水危险性分区 |
Improved vulnerability index method for evaluating water inrush from the floor of coal seam |
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| CHEN Jianping,LI Jinzhu,WANG Xuedong,LIU.Improved vulnerability index method for evaluating water inrush from the floor of coal seam[J].The Chinese Journal of Geological Hazard and Control,2019,30(3):67-74. |
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| Authors: | CHEN Jianping LI Jinzhu WANG Xuedong LIU |
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| Affiliation: | (College of Mining,Liaoning Technical University,Fuxin,Liaoning123000,China) |
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| Abstract: | Entropy weight method is used aiming at improving the traditional AHP vulnerability index method in weight-determination process. The objective weight value calculated by the entropy weight method and the subjective weight value calculated by the AHP( Analytic Hierarchy Process) method are weighted average.The weight proportion of each main control factor inducing water inrush is determined synthetically. Using GIS( Geographic Information System) to establish and normalize the thematic maps of main control factors,after the comprehensive hydrogeological data analysis of Changping coal mine was carried out. The weight of each main control factor is determined using the improved AHP vulnerability index method based on GIS. The risk assessment model of Ordovician limestone water inrush in No. 3 coal seam of the West Mine is established.The threshold is determined by natural breaks classification method,and the study area is divided into 5 regions according to the relative size of water-inrush risk. The evaluation results are consistent with actual situation and have important practical significance for coal-mine safety production. |
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| Keywords: | water outburst from coal seam floor vulnerable index method GIS improved AHP method water-inrush hazard zone |
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