厚煤层残煤超高水材料充填复采关键技术研究

发布时间：2018-02-14 10:12

本文关键词： 厚煤层充填复采超高水材料关键技术　出处：《中国矿业大学》2015年硕士论文　论文类型：学位论文

【摘要】：煤炭是我国最重要的基础能源,对于我国现代化建设的作用不言而喻。许多老矿井在开采初期,受到开采技术条件、管理水平、求进度重产量等原因的限制,遗留的残煤储量非常可观。在煤炭可采资源愈发匮乏的情况下,如果能够充分利用现有技术条件开展残煤复采,将是能够解决矿井可持续发展的有效途径。论文利用现有研究成果,通过理论分析、数值计算,并结合瑞丰煤业工程实践,研究了厚煤层残煤复采条件下的超高水材料充填关键技术。论文主要包含以下内容:1)研究厚煤层复采工作面覆岩活动规律特点,得出复采工作面残煤岩体基本力学特征和顶板特征,以及复采工作面矿压分布特征;2)对超高水充填材料的基本特点、充填体的受力特征以及超高水充填系统等做了分析论述;3)研究厚煤层超高水材料充填复采的关键技术,包括复采巷道布置、采煤方法与工艺、设备选型与配套、超高水充填方法选择以及顶板管理等,研究并提出了一种适合厚煤层残煤超高水充填复采的新型支架;4)通过工程实践,介绍了厚煤层超高水材料充填复采关键技术的应用情况,并通过矿压观测与地表观测等活动,综合分析了工程效果。
[Abstract]:Coal is the most important basic energy in our country, and it is self-evident for the modernization of our country. Many old mines are restricted by the technical conditions of mining, the level of management, the demand for heavy production and so on in the early stage of mining. The remaining coal reserves are considerable. In the case of increasing scarcity of recoverable coal resources, if the existing technical conditions can be fully utilized to carry out residual coal remining, It will be an effective way to solve the sustainable development of coal mine. This paper makes use of the existing research results, through theoretical analysis, numerical calculation, and combined with the practice of Ruifeng coal industry engineering, This paper studies the key technology of super-high water material filling under the condition of remining residual coal in thick coal seam. The main contents of this paper are as follows: 1) the characteristics of overburden rock activity in thick coal seam mining face are studied. The basic mechanical characteristics and roof characteristics of residual coal and rock mass in remining face, as well as the distribution characteristics of mine pressure in remining face are obtained. The basic characteristics of super-high water filling material are obtained. The mechanical characteristics of filling body and ultra-high water filling system are analyzed and discussed in this paper) the key technology of remining with super-high water material filling in thick coal seam is discussed, including the layout of roadway, mining method and technology, equipment selection and matching, etc. The selection of super-high water filling method and roof management, a new type of support for remining with super high water filling and filling in thick coal seam is studied and put forward. Through engineering practice, the application of the key technology of remining with ultra-high water material in thick coal seam is introduced. The engineering effect is analyzed synthetically by ground pressure observation and surface observation.
【学位授予单位】：中国矿业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TD823.7

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