五沟矿10煤层底板灰岩水数值模拟及其防治研究

发布时间：2018-04-24 05:11

本文选题：五沟煤矿 + 水文地质条件　；参考：《安徽理工大学》2013年硕士论文

【摘要】：五沟煤矿位于宿南-临海童井田的童亭背斜的西南角,是我国典型的华北型煤矿开采类型,深受其底部各种高承压灰岩水威胁。研究其宏观与微观水文地质条件,采取行之有效防治水方法与措施,对解放煤炭资源,具有十分重要的意义。论文在查阅国内外相关灰岩水防治研究现状文献资料基础上,以皖北五沟煤矿10煤层开采为研究对象,通过系统整理分析区域及矿井地质及水文地质资料,获得了井田内灰岩含水层之间水力联系、断层导、隔水水性以及充水水源等信息,并分析矿井工作面在疏放-注浆过程中不同含水层水位的响应关系,从而获得了断层控制区块的连通程度。通过对底板灰岩含水层边界、结构厚度及补径排条件的分析,建立了水文地质概念模型及数学模型,运用Visual Modflow软件模拟识别了其水文地质参数。针对1021、1023及1025工作面底板灰岩水害情况,利用上述模型,结合突水系数,计算并评价了两种方案下的灰岩水疏放效果,预测了安全开采条件下的地下水流场变化规律。系统总结分析了该矿10煤层底板灰岩水防治方法与技术,即直流电法勘探、音频电透视技术以及无线电波坑透技术的超前探测技术、疏水降压与注浆加固技术等,以上是解决该矿高承压灰岩水上采煤最有效途径与措施。最后,依据五沟煤矿充水含水层水质组分特点,研发了“五沟煤矿突水水源判别与分析系统”软件,为快速判别分析突水水源提供了最直接有效手段。
[Abstract]:Wugou Coal Mine is located in the southwest corner of Tongting anticline , which is a typical North China coal mining type , which is deeply threatened by various high pressure - bearing limestone water at the bottom of China . It is very important to study the macroscopic and microscopic hydrogeologic conditions , and to adopt effective methods and measures to prevent and cure coal resources .

Based on the literature and data of the research on the prevention and control of limestone water at home and abroad , this paper takes 10 coal seams in Wugou Coal Mine of Anhui Province as the research object . Through systematic analysis and analysis of regional and mine geological and hydrogeologic data , this paper obtains the information of hydraulic connection , fault conductivity , water - proof and water - filling water level of limestone aquifer in the well field , and analyzes the relationship between the water level of different aquifer in the process of dredging and grouting , and establishes the conceptual model and mathematical model of hydrogeologic geological model . The hydrogeological parameters are identified by using the Visual Modflow software simulation .

According to the water damage condition of the bottom plate of 1021 , 1023 and 1025 working faces , using the above model , combined with the number of water inrush systems , the effect of limestone water drainage under the two schemes is calculated and evaluated , and the variation law of groundwater flow field under safe mining conditions is predicted .

The system summarizes the methods and technologies of prevention and control of limestone water in the bottom floor of 10 coal seam of the mine , that is , direct current electric prospecting , audio power transmission technology and advanced detection technology of radio wave pit transmission technology , hydrophobic step - down and grouting reinforcement technology , etc . , which is the most effective way and measure to solve the problem of high pressure - bearing limestone on water .

Finally , according to the characteristics of water quality component of water - filled aquifer in Wugou Coal Mine , the software of " Water Source Identification and Analysis System for Water inrush of Wugou Coal Mine " is developed , which provides the most direct and effective means for quick discriminant analysis of water inrush sources .

【学位授予单位】：安徽理工大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TD745

【参考文献】