平煤八矿己四采区瓦斯抽采设计稿本科生毕业设计稿.docVIP

平煤八矿己四采区瓦斯抽采设计 摘要：对突出矿井而言，煤矿生产过程中的最大安全隐患是瓦斯事故。由于瓦斯事故的危害极大，消除瓦斯事故隐患需要花费较多的时间和费用，而瓦斯灾害事故的威胁也极大限制了煤矿生产规模，生产效率和经济效率的提高。瓦斯灾害的有效控制是保证我国煤炭工业可持续发展的一个关键性问题。 平煤矿己四采区煤层瓦斯抽放设计采用上下顺槽打顺层平行钻孔预抽、高位钻孔抽放和采空区埋管抽放、上隅角抽放相结合的瓦斯抽放方法，它能确保采掘工作在低瓦斯含量条件下采掘，给采掘工作创造安全环境。 根据平煤矿己四采区的各项资料研究瓦斯抽放设计的合理组合方式，工艺参数，抽放效果评价技术等是非常有必要的，能够为矿井瓦斯抽放的科学管理，生产计划的科学编制以及计划的严格实施提供必要的科学依据，也是确保安全生产，提高工作效率和生产效益的有效手段。 关键词：瓦斯抽放平行钻孔高位钻孔 Gas drainage design of ji four mining area in Pingdingshan coal eight mine Abstract：Of the gas mine, the coal production process is the biggest security risk of gas accidents. Great harm because gas accidents and eliminate hidden perils of gas takes more time and cost, and the threat of gas disasters have also greatly limits the scale of coal production, productivity and economic efficiency. Effective control of gas disaster is to ensure sustainable development of Chinas coal industry is a key issue. Pingmei Minmetals had eight mining area in gas tank design uses a play up and down along the bedding parallel to nonpallel boring, and high level borehole in gob drainage pipe, drainage in the upper corner of a combination of gas drainage method , he can ensure that the excavation work under the conditions of low gas content of the work, to create a safe working environment for mining, pumping gas costs are relatively low. According to Minmetals had eight mining areas Pingmei all the information of the rational design of combination of gas drainage, process parameters, such as drainage effect evaluation technology is necessary, be able to mine gas drainage and scientific management, production planning the scientific establishment and strict implementation of plans to provide the necessary scientific basis, but also ensure safety in production, improve efficiency and effective means of production efficiency. Keywords：gas drainage； nonpallel boring； high level borehole 1 绪论 1 1.1 概述 1 1.2 设计的指导思想 2 1.3 抽采效果预计 2 1.3.1 瓦斯抽采率 2 1.3.2 矿井瓦斯抽采量 2 2.矿井概况及井田地质特征 3 2.1矿井概况 3 2.1.1交通位置 3 2.1.2地形、地势 4