鄂庄煤矿水文地质特征及对下组煤开采影响-地质工程专业论文.docx

摘 要
矿井底板突水一直是煤矿开采重大隐患,影响底板突水的因素很多,包括水压、隔水层厚度、构造、富水性、开采条件等多种影响。在开采下组煤时,由于距奥灰含水层近,奥灰水极易穿透煤层底板造成底板突水。本文在广泛查阅相关文献的基础上,针对鄂庄煤矿煤层特征、井田构造特征及其水文地质条件进行全面、详细、系统分析,查明了井田中各种断裂构造及矿井各个含水层、隔水层的情况,尤其是距离 19 煤很近的奥灰含水层及相应隔水层的情况。采用数值模拟方法预测底板破坏深度,在得出底板破坏深度的基础上,先分别采用突水系数法、地质构造突水危险性预测两种方法定性、定量的预测相应危险区;然后将影响底板突水的因素如富水性、构造、水压、隔水层厚度等因素通过建立数学模型,进行多源信息融合,得出更加符合实际情况的 19 煤层突水危险性分区图;最后编制底板突水预测软件。
关键字:奥灰,下组煤,数值模拟,底板破坏深度,突水系数,构造,信息融合,突水预测
ABSTRACT
Floor water-inrush is one of great hidden danger during the coal mining. Mining water-inrush is affected by hydraulic pressure, waterproof layer thickness, rich water, mining condition and other is so easily for Ordovician limestone water to pierce through the coal seam when Lower-group coal mined. Based on widely read related references home and abroad about mining water inrush, this paper analyzed the property of the coal seam and the hydrological pletely and in detail investigated the main aquifer and the mian aquifuge, Ordovician Limestone aquifers especially which is away from the 19-coal used the numerical simulation software RFPA to forecast the the depth of destroyed floor and the result is the basis of the result, firstly we use the method of the water bursting coefficient and the anlysis about the conformation to predict the floor water- then we fuse the main factors that influence floor water-inrush through the use of the establishment the mathematic model to obtain The partition map of fatalness of water-inrush floor from 19-coal seam to Ordovician last,we will develop the software to predict the floor water-inrush.
Keywords: limestone aquifers, lower-group coal, numerical simulation, the depth of destroyed floor, water bursting coefficient, conformation, information fusion, forecast of water inrush.
目 录
1 绪论..................................................................................................................1
论文选题及其研究意义................................................