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为更清楚地了解我国北方矿井发生煤自燃的危险程度及原因,结合东北、华北、西北地区3个典型矿井的实际情况,基于横向对比的思维方法,运用层次分析法(AHP)和逼近理想解排序法(TOPSIS)构建采空区煤自燃危险性分析模型。利用所建模型,对矿井煤自燃危险性进行对比研究。结果显示,3个地区煤自燃危险性排序为东北南山矿>西北酸刺沟矿>华北宣东矿;煤自燃的主要原因,分别是较慢的采掘速度、较低的采出率和较严重的煤柱裂隙,通过横向对比能够明确矿井在煤自燃灾害方面的特点,使应对措施更加有针对性及合理性。
In order to understand the dangerous degree of spontaneous combustion of coal mines in the northern coal mines of our country and its reason, this paper, based on the actual situation of three typical mines in Northeast, North China and Northwest China, based on the horizontal contrast method of thinking, uses analytic hierarchy process (AHP) and approximation ideal solution Sorting Method (TOPSIS) to Build Coal Goaf Spontaneous Combustion Hazard Analysis Model. By using the model, the risk of coal spontaneous combustion was compared. The results show that the danger rank of coal spontaneous combustion in the three regions is northeast Nanshan ore> northwestern acidchonggou ore> Xindong mine in North China; the main causes of spontaneous combustion of coal are slow mining speed, lower recovery rate and more serious Of the coal pillar fissures, through lateral contrast can clear the characteristics of coal mine in coal spontaneous combustion disasters, so that the response measures more targeted and reasonable.