三道沟煤矿地表水淹井灾害防治模式研究

发布时间：2018-04-16 10:20

本文选题：山区煤矿 + 地表水淹井灾害　；参考：《西安科技大学》2014年硕士论文

【摘要】：山区煤矿水文地质条件复杂，历史上曾发生多次地表水淹井灾害，是我国山区煤矿地表水淹井多发性区域类型。随着我国矿山企业经济的发展，，地表水淹井灾害直接和间接造成的经济损失愈来愈大。因此，山区煤矿地表水防治模式的研究具有理论和现实意义。煤炭开采过程中改变了原岩应力分布，引发的矿山沟道灾害破坏了天然地表排水系统，为地表水淹井提供了重要通道，严重威胁着矿井生产安全。论文是在全面进行研究区地理、地质条件分析的基础上，对研究区河道灾害进行了统计分析，归纳总结了地表水淹井灾害发育规律。首次提出了“矿山沟道灾害”的概念（煤矿采掘活动过程中由上覆岩层应力分布改变，造成岩土体变形破坏，形成具有受河谷地貌影响，且为矿井充水提供重要通道特征的灾害称为“矿山沟道灾害”）。并将矿山沟道灾害发育演变过程分为岩体应力变化—山体裂缝—岩土体变形破坏三个主要阶段。总结出矿山沟道灾害的分布规律：①裂缝多分布于山坡及山顶；②裂缝走向与巷道走向几乎垂直；③崩塌多位于河道右岸。通过分析得出，这些矿山沟道灾害均成为地表水淹井灾害的重要因素，查明其发展规律及分布特征，是地表水淹井灾害机理研究的基础，也是地表水防治工程设计的重要依据。通过归纳前人治理地表水的经验，结合山区地表水特征，提出矿山地表水防治工程，要根据实际情况和客观条件，按照正确的原则，选择“生物措施+工程措施+管理措施”的综合治理方案。并以三道沟煤矿为例，进行了地表水防治工程设计，共分为三部分：临时防护工程、临时防护工程破坏后修复工程、永久治理工程。为了更好的服务于矿山开采，结合矿区沟道地表水防治沿线长，地质条件复杂多变，结构和基础一体的特点，且需满足沟道排洪设计要求等，尝试性研究提出了一种“矿山沟道地表水防渗结构”。
[Abstract]:The hydrogeological conditions of coal mines in mountainous areas are complex and the surface water flooded wells have occurred many times in history. It is the multiple regional type of surface water flooded wells in mountain coal mines of our country.With the economic development of mining enterprises in China, the economic losses caused directly and indirectly by surface flooding disasters are increasing.Therefore, the study of surface water prevention model in mountain area has theoretical and practical significance.In the process of coal mining, the stress distribution of the original rock has been changed, and the mine channel disaster has destroyed the natural surface drainage system, provided an important passage for the surface water flooded well, and seriously threatened the safety of mine production.Based on the analysis of the geographical and geological conditions of the study area, this paper makes a statistical analysis of the river course disaster in the study area, and summarizes the development law of the surface flooded well disaster.The concept of "mine channel disaster" is put forward for the first time (the stress distribution of the overlying strata changes during the mining activities of coal mines, which results in the deformation and destruction of the rock and soil mass, which is influenced by the valley geomorphology.And the disaster that provides important channel characteristic for mine water filling is called "mine channel disaster".The development and evolution process of mine channel disaster is divided into three main stages: rock stress change, mountain crack and rock and soil deformation and failure.It is concluded that the distribution rule of mine channel disaster is that the Wei 1 crack is mostly distributed on the hillside and the top of the mountain and the strike of the tunnel is almost vertical and the collapse is mostly located on the right bank of the river course.Through analysis, it is concluded that these mine channel disasters are important factors of surface water flooding well disasters, and to find out their development law and distribution characteristics are the basis of the study of surface water flooding disaster mechanism and the important basis of surface water prevention and control engineering design.Through summing up the previous experience of surface water treatment and combining the characteristics of surface water in mountainous areas, the paper puts forward that the mine surface water control project should be based on the actual situation and objective conditions, according to the correct principle,Choose the comprehensive management plan of "biological measures engineering measures management measures".Taking Sandaogou coal mine as an example, the surface water control engineering design is carried out, which is divided into three parts: temporary protection project, repair project after destruction of temporary protection project, permanent treatment project.In order to better serve mine mining, combined with the characteristics of long channel surface water prevention and control, complex and changeable geological conditions, integrated structure and foundation, and so on, it needs to meet the design requirements of channel flood discharge, etc.A kind of "mine channel surface water seepage control structure" is put forward in this paper.
【学位授予单位】：西安科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TD745

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