带压煤层底板构造致灾突水水量预测方法初探

发布时间：2018-03-26 22:36

本文选题：突水　切入点：水量预测　出处：《煤矿开采》2015年02期

【摘要】：由于底板构造突水水量的难以预测性,生产中常用底板疏降水量代替突水水量,导致矿井防排水系统建设的主要依据可靠度偏低。以霍州煤电集团大水矿区为例,分析了矿井正常涌水量、最大涌水量和突水水量的区别与联系,基于含水层补给能力和导水通道的过水能力两方面因素,构建了断裂和陷落柱2种导水通道的突水水量预测模型,提出了适用于构造突水情况的矿井涌水量预测修正方法。以霍州矿区2个矿井的资料为例进行验证,结果表明基于含水层补给能力的突水预测模型更符合实际突水情况,该矿区构造类突水水量的决定因素为含水层富水性。考虑底板突水因素,提出了矿井抗灾指标的计算方法,提高了抗灾系统指标的可靠性。
[Abstract]:Because of the unpredictability of the water inrush of the floor structure, the water inrush is replaced by the sparse precipitation of the floor in production, which leads to the low reliability of the main basis for the construction of the mine water prevention and drainage system, taking Dashui mine area of Huozhou Coal and Power Group Group as an example. This paper analyzes the difference and relation among normal discharge, maximum discharge and water inrush of mine, based on the two factors of aquifer recharge capacity and water passing capacity of diversion channel. In this paper, the water inrush prediction model of two water diversion channels of fault and collapse column is constructed, and a modified method for predicting water inflow of coal mine is put forward, which is suitable for structural water inrush. The data of two mines in Huozhou mining area are taken as an example to verify the prediction of water inrush. The results show that the prediction model of water inrush based on the recharge capacity of aquifer is more suitable for the actual water inrush, and the determining factor of the water inrush volume of the structure in this mining area is aquifer water enrichment. Considering the water inrush factor of bottom plate, the calculation method of mine disaster resistance index is put forward. The reliability of the index of disaster resistance system is improved.
【作者单位】：中煤科工集团西安研究院;
【基金】：国家自然科学基金重点资助项目(51034003) 国家科技计划支撑课题(2012BAC10B03)
【分类号】：TD745

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