基于CW-VIKOR的底板突水威胁评价

Floor water inrush threat assessment based on comprehensive weight and VIKOR(CW-VIKOR)

准格尔煤田开采面临突水威胁,传统的评价方法已不能满足实际生产中的需求。为了丰富底板突水威胁评价理论,提出一种基于综合权重和直觉模糊多属性决策法的突水威胁评价方法,以准格尔煤田黄玉川煤矿为例,通过对研究区地质条件的分析,建立含水层、隔水层和地质构造为主要影响因素的评价指标体系,选择层次分析法和CRITIC赋权法分别作为主客观赋权方法,求得各影响因素的综合权重;将直觉模糊多属性决策法作为此次研究的评价模型基础,计算各评价单元的折中评价值后进行排序,折中评价值越小的单元突水威胁越大,利用自然分级法将研究区分为危险、较危险、较安全、安全4个区域,得到研究区突水威胁评价结果图。将评价结果与研究区范围内已有出水位置进行比较发现,突水位置均位于危险区与较危险区中,证明评价结果较为准确。

The mining of Zhungeer Coalfield is facing the threat of water inrush,and traditional evaluation methods can no longer meet the needs of actual production.To enrich the floor water inrush threat evaluation theory,a water inrush threat evaluation method based on comprehensive weighting and intuitionistic fuzzy multi-attribute decision-making method was proposed.Taking Huangyuchuan Coal Mine in Zhungeer Coalfield as an example,an evaluation index system was established based on the analysis of geological conditions in the study area,with aquifers,waterproof layers,and geological structures as the main influencing factors.The AHP and CRITIC weighting method were selected as the subjective and objective weighting methods to obtain the comprehensive weights of each influencing factor.Using the intuitionistic fuzzy multi-attribute decision-making method as the basis of the evaluation model for this study,the compromise evaluation values of each evaluation unit were calculated and ranked.The unit with a smaller compromise evaluation value had a greater water inrush threat.Using the natural classification method,the study was divided into four areas:dangerous,more dangerous,safer,and safe,and the evaluation result map of the water inrush threat in the study area was obtained.By comparing with the existing water outlet positions within the research area,it was found that the water inrush positions were all located in the dangerous and more dangerous areas,proving that the evaluation results were more accurate.