【作者】 焦志彬；

【导师】 王心义；

【作者基本信息】 河南理工大学 ， 环境工程， 2012， 硕士

【摘要】 我国是一个以煤炭为主要能源的国家，煤炭工业的健康持续发展是我国国民经济可持续发展的必要保证。本文根据已有的矿井地质和水文地质勘探资料以及采掘过程中实际揭露的水文地质信息，分析了平煤八矿西翼己组煤开采时的突水水源、突水通道的特征和矿井涌水量的变化规律及控制因素，并对重要威胁水源——寒武灰岩水的补径排特征、水位动态变化规律、温度场特征循环运移规律进行了系统研究。根据井下物探结果并结合矿井水文地质特征，确定了西大巷底板寒武灰岩的富水异常区，结合已有的水压监测资料和地质钻孔揭露的隔水层厚度资料，评价了八矿西翼寒武灰岩、L₇薄层灰岩和L2薄层灰岩含水层的突水危险性。针对L₇灰岩含水层，设计并实施了寒武灰岩疏水降压方案，评价了水质及综合利用的可行性。7眼寒武灰岩疏水孔总疏水量300m³/h，排至地表可供餐厅、洗浴等方面使用。通过研究，得出以下结论：（1）八矿寒武灰岩水的补给来自李口向斜和自西向东顺岩层走向的侧向径流补给，水位动态主要受疏水降压的影响，八矿区为高地温异常区。（2）突水危险性评价表明，西大巷附近以及矿区北部的大部分地带，L₇薄层灰岩含水层实际突水系数大于临界突水系数值0.06Mpa/m，对己组煤开采威胁较大。（3）西大巷寒武灰岩7眼疏水降压孔总疏水量300m³/h，水温50℃，水质较好，排至地表可供餐厅、洗浴等使用。更多还原

【Abstract】 China is a country which regards coal as the main source of energy, so healthy andsustaining development of the coal industry is necessary for sustainabledevelopment of China’s national economy. According to the information of mininggeology and the hydrogeology, the source of water inrush, the characters of water inrushchannels, and the rules and controlling factors of water inflow in the west part of No.8coal mine in China Pingdingshan Energy and Chemical Group are analyzed. Thefeatures of recharge-runoff–discharge, the dynamic change rules of water level, andthe cycle and movement law of temperature field of Cambrian limestone water which isdangerous for the mining are analyzed systematically. According to the results ofgeophysical explorations and the characters of hydrogeology, water anomaly area ofCambrian limestone in west main tunnel is confirmed. The risk of water inrush fromCambrian limestone, L₇and L2limestone in No.8coal mine is evaluated based on thedata of the monitored water pressure and thickness of impermeable layer discovered byGeological drilling.Water control method is designed based on the partition of water inrush risk fromL₇limestone. Improve scheme of geothermic harm is discussed for area with abnormalhigh temperature in west tunnel and working face. Benefit evaluation is done fordrainage and depressurization, improvement of geothermic harm and comprehensiveutilization of ground hot water. The following conclusions are drawn from studies,（1） The Cambrian limestone water is supplied from Likou syncline and lateral runoffwith the direction from west to east along rock. Water level is mainly affected bydrainage and depressurization. No.8mining is a high temperature abnormal area.（2） Risk evaluation of water inrush shows that in the area near west tunnel and themost region of west part of No.8mine, water inrush coefficient of L₇limestone isgreater than0.06MPa/m which is the critical water inrush coefficient. It has great threatto the mining of ji group coal.（3） The volume of Cambrian limestone water from seven holes for drainage anddepressurization in west tunnel is300m³/h, the temperature of it is50℃, and the waterquality is good. The water can be utilized in restaurant and bathroom if it is pumped tothe ground surface.更多还原