鲁西煤矿中厚煤层软弱顶板切顶留巷工程技术及应用.pdf

分类号分类号密密级级公公开开 U D CU D C 单位代码单位代码 1042410424 学学 位位 论论 文文 鲁鲁西西煤煤矿矿中中厚厚煤煤层层软软弱弱顶顶板板切切顶顶留留巷巷 工工程程技技术术及及应应用用 王炳延王炳延 申申请请学学位位级级别别硕士学位硕士学位专专业业名名称称工程管理工程管理 指指导导教教师师姓姓名名文志杰文志杰职职称称副教授副教授 副副指指导导教教师师姓姓名名张为民张为民职职称称高级工程师高级工程师 山山 东东 科科 技技 大大 学学 二二〇〇一九年十一月一九年十一月 万方数据 论文题目论文题目 鲁鲁西西煤煤矿矿中中厚厚煤煤层层软软弱弱顶顶板板切切顶顶留留巷巷 工工程程技技术术及及应应用用 作者姓名作者姓名 王炳延王炳延入学时间入学时间 2017 年年 9 月月 专业名称专业名称 工程管理工程管理研究方向研究方向工工业业企企业业管管理理 指导教师指导教师 文志杰文志杰职职称称 副副教教授授 副指导教师副指导教师张为民张为民高级工程师高级工程师 论文提交日期论文提交日期2019 年年 10 月月 论文答辩日期论文答辩日期2019 年年 11 月月 16 日日 授予学位日期授予学位日期 万方数据 ENGINGEERING TECHNOLOGY OF GOB-SIDE ENTRY RETAINING BY CUTTING ROOFAND RELEASING PRESSUREAND LUXI COALMINE UNDER CONDITIONS OF WEAK ROOFAND MEDIUM-THICK COALSEAM ADissertation ted in fulfillment of the requirements of the degree of MASTER OF ENGINEERING MANAGEMENT from Shandong University of Science and Technology by Wang Bingyan Supervisor Professor Wen Zhijie Vice-supervisor Senior Engineer Zhang Weimin College of Mining and Safety Engineering November 2019 万方数据 学位论文原创性声明学位论文原创性声明 本人呈交给山东科技大学的这篇硕士学位论文，除所列参考文献和世所公本人呈交给山东科技大学的这篇硕士学位论文，除所列参考文献和世所公 认的文献外，全部是本人攻读学位期间在导师指导下的研究成果。除文中已经认的文献外，全部是本人攻读学位期间在导师指导下的研究成果。除文中已经 标明引用的内容外，本论文不包含任何其他个人或集体已经发表或撰写过的研标明引用的内容外，本论文不包含任何其他个人或集体已经发表或撰写过的研 究成果。对本文的研究做出贡献的个人和集体，均已在文中以明确方式标明。究成果。对本文的研究做出贡献的个人和集体，均已在文中以明确方式标明。 本人完全意识到本声明的法律结果由本人承担。本人完全意识到本声明的法律结果由本人承担。 若有不实之处，本人愿意承担相关法律责任。若有不实之处，本人愿意承担相关法律责任。 硕士生签名硕士生签名 日日期期 万方数据 学位论文使用授权声明学位论文使用授权声明 本人完全了解山东科技大学有关保留、使用学位论文的规定，同意本人所本人完全了解山东科技大学有关保留、使用学位论文的规定，同意本人所 撰写的学位论文的使用授权按照学校的管理规定处理。撰写的学位论文的使用授权按照学校的管理规定处理。 作为申请学位的条件之一，作为申请学位的条件之一，学校有权保留学位论文并向国家有关部门或其学校有权保留学位论文并向国家有关部门或其 指定机构送交论文的电子版和纸质版；有权将学位论文的全部或部分内容编入指定机构送交论文的电子版和纸质版；有权将学位论文的全部或部分内容编入 有关数据库发表，并可以以电子、网络及其他数字媒体形式公开出版；允许学有关数据库发表，并可以以电子、网络及其他数字媒体形式公开出版；允许学 校档案馆和图书馆保留学位论文的纸质版和电子版，可以使用影印、缩印或扫校档案馆和图书馆保留学位论文的纸质版和电子版，可以使用影印、缩印或扫 描等复制手段保存和汇编学位论文；为教学和科研目的，学校档案馆和图书馆描等复制手段保存和汇编学位论文；为教学和科研目的，学校档案馆和图书馆 可以将公开的学位论文作为资料在档案馆、图书馆等场所或在校园网上供校内可以将公开的学位论文作为资料在档案馆、图书馆等场所或在校园网上供校内 师生阅读、浏览。师生阅读、浏览。 （保密的学位论文在解密后适用本授权）（保密的学位论文在解密后适用本授权） 硕士生签名硕士生签名导师签名导师签名 日日期期日日期期 万方数据 学位论文审查认定书学位论文审查认定书 研究生研究生在规定的学习年限内在规定的学习年限内，， 按照培养方案及个人培养计划按照培养方案及个人培养计划，， 完成了课程学习，成绩合格，修满规定学分；在我的指导下完成本学位论文，完成了课程学习，成绩合格，修满规定学分；在我的指导下完成本学位论文， 论文中的观点、数据、表述和结构为我所认同，论文撰写格式符合学校的相关论文中的观点、数据、表述和结构为我所认同，论文撰写格式符合学校的相关 规定，同意将本论文作为申请学位论文。规定，同意将本论文作为申请学位论文。 导师签名导师签名 日日期期 万方数据 山东科技大学硕士学位论文摘要 I 摘摘要要 伴随着煤炭资源长期开采，浅部煤层开采接近尾声，大多数煤矿不得不开 始深部煤层开采的探索。在有效实现冲击地压等矿井灾害控制的同时，实现矿 井安全高效生产，已经成为深部煤层开采研究的难点和热点。切顶卸压沿空留 巷技术是有效治理冲击地压等矿井自然灾害，实现煤矿安全高产高效的有效方 式之一，同时可以有效解决资源浪费，资源回收率低，生产效率低，成本高， 工人劳动强度大的问题。但是作为一个新的巷道控制技术，该技术还存在很多 技术风险和安全隐患。本文基于前人的研究，通过理论研究和工程实践相结合 的方式，对鲁西煤矿中厚煤层软弱顶板切顶卸压沿空留巷技术和安全管理进行 研究，分析了中厚煤层软弱顶板切顶卸压沿空留巷技术的必要性，并提出了相 应的围岩控制技术和风险安全管理办法。主要研究内容如下 （1）在充分研究鲁西煤矿工程地质条件的基础上，通过技术、经济、风险 分析等方面对中厚煤层软弱顶板条件下切顶卸压沿空留巷可行性和必要性进行 了分析，研究表明项目可行且对矿井持续发展具有必要性，切顶留巷技术及爆 破切顶技术成熟且适用于该地质条件，经济效益显著，环境友好。对鲁西煤矿 形成多种地质条件下的沿空留巷系列技术具有重要意义。 （2） 开展了针对中厚煤层软弱顶板复杂地质条件下切顶卸压沿空留巷关键 技术研究。在对切顶卸压沿空留巷理论基础上，通过数值模拟分析了切顶卸压 的力学机理，总结得出了切顶卸压沿空留巷关键技术以及中厚软弱煤层“差异 化”支护技术，确定了鲁西煤矿 3 上118 工作面切顶卸压沿空留巷成套技术方案。 同时，通过现场实践，总结得出了中厚煤层软弱顶板预裂爆破切缝机理及关键 参数。 （3） 针对项目施工中存在的安全隐患， 研究双重预防体系在项目中的应用， 双重预防体系主要包含安全风险分级管控和隐患排查治理两个方面。研究了安 全风险分级管控和隐患排查治理体系的基本内容，对切顶卸压沿空留巷施工中 存在的风险和安全隐患进行了排查和分级，确定了中厚煤层软弱顶板切顶卸压 沿空留巷项目施工过程中潜在风险的管控措施和治理方案，从而确保沿空巷道 的施工安全。针对项目实施中已查明的安全隐患，研究可能突发事故的应急管 理办法应用，研究了应急组织和保障体系建设以及突发事故应急响应分级和处 置程序。确定了切顶卸压沿空留巷施工中已查明的风险和安全隐患的应急响应 分级，以及突发事故的应急处理流程，为更好的服务于矿井的救险救灾。 万方数据 山东科技大学硕士学位论文摘要 II 关键词关键词沿空留巷，必要性分析，风险管控，工程管理 万方数据 山东科技大学硕士学位论文摘要 III Abstract With long-term mining, the shallow resources are increasingly exhausted, and most mines have to move to deep mining. How to effectively control mine disasters, such as rock burst, and realize safe and efficient production have become a research hotspot in deep medium-thick coal seam. The gob-side entry retaining technology with cutting roof and releasing pressure is one of the effective ways to effectively control natural disasters and realize high production safety and efficiency of coal mine, and can effectively solve the problems of resource waste, low resource recovery rate, low production efficiency, high cost and high labor intensity caused by coal pillar. However, as a new roadway control technology, there are many risks and safety hazards. In this paper, based on the previous studies, through theoretical research and field practice, gob-side entry retaining technology with cutting roof and releasing pressure and safety management are studied, and the controltechnologyanddualpreventionsystemandemergency management measures of the surrounding rock in deep medium-thick coal seam are put forward. The main research contents are as follows 1 Basis on the full study of engineering geological conditions in Luxi coal mine, gob-side entry retaining technology with cutting roof and releasing pressure of medium and thick soft coal seam for the feasibility was analyzed through technical, economic, safety and environment. The result shows that project is feasible and cutting top technology and blasting for cutting the top technology mature and applicable to the geological conditions, the economic benefit is remarkable, environment friendly. It is of great significance to the ation of a series of technology of gob stay in Luxi coal mine under various geological conditions. 2 The gob-side entry retaining technology with cutting roof and releasing pressure was studied. On the basis of the theory of gob-side entry retaining technology with cutting roof and releasing pressure, the mechanical mechanism of that was analyzed by numerical simulation. the gob-side entry retaining technology with cutting roof and releasing pressure and the “differentiated“ supporting technology of medium and thick soft coal seam were summarized. The complete technical system of gob-side entry retaining technology with cutting roof and releasing pressure of 3upper118 working face in Luxi coal mine was determined. Meanwhile, a new of bi-directional shaped charge blasting is 万方数据 山东科技大学硕士学位论文摘要 IV presented to realize pre-splitting of roof. The optimal blasting technical parameters were determined by field test. 3The double prevention system for unexpected accidents in the implementationoftheprojectwerestudiedanddesigned.The construction of dual prevention system refers to two systems, i.e. the hierarchical management and control of work safety risks and the troubleshooting and control of hidden dangers. The basic contents of that were studied, and the risks and safety hazards existing in the process of the gob-side entry retaining technology with cutting roof and releasing pressure were investigated and classified. The potential risk control measures and management plans were determined, So as to ensure the construction safety along the roadway. According to the safety hidden dangers identified in the project implementation, the application of emergency management measures for possible sudden accidents was studied. The construction of emergency organization and security system and emergency response classification and disposal procedures were studied. The emergency response classification of the risk and safety hidden danger identified in the construction of gob-side entry retaining by cutting roof and releasing pressure was determined, For better service in the mine rescue and relief. Keywordsgob-sideentryretaining,necessityanalysis,Risk management and control, project management 万方数据 山东科技大学硕士学位论文目录 V 目目录录 摘摘要要.........................................................................................................I 目目录录....................................................................................................... V 1绪绪 论论....................................................................................................1 1.1课题的提出......................................................................................................... 1 1.2国内外沿空巷道技术发展现状......................................................................... 2 1.3双重预防体系管理研究现状............................................................................. 6 1.4切顶留巷应急管理研究现状............................................................................. 6 1.5亟需解决的问题和技术难点............................................................................. 6 1.6主要研究内容和技术路线................................................................................. 7 2切顶卸压沿空留巷切顶卸压沿空留巷必要性必要性................................................................10 2.1鲁西煤矿概况................................................................................................... 10 2.2技术必要性....................................................................................................... 15 2.3经济必要性....................................................................................................... 17 2.4安全必要性....................................................................................................... 20 2.5本章小结........................................................................................................... 24 3切顶卸压沿空留巷切顶卸压沿空留巷技术分析技术分析........................................................... 25 3.1切顶卸压沿空留巷研究基础........................................................................... 25 3.2切顶卸压机理模拟........................................................................................... 27 3.3中厚软弱顶板“差异化”支护关键技术............................................................29 3.4本章小结........................................................................................................... 31 4切顶卸压沿空留巷切顶卸压沿空留巷技术风险管控技术风险管控...................................................32 4.1双重预防体系管理实施................................................................................... 32 4.2切顶留巷项目应急管理................................................................................... 37 4.3本章小结........................................................................................................... 48 5切顶卸压沿空留巷项目现场应用及工程经济分析切顶卸压沿空留巷项目现场应用及工程经济分析.......................50 万方数据 山东科技大学硕士学位论文目录 VI 5.1支护设计应用................................................................................................... 50 5.2切顶施工工艺................................................................................................... 53 5.3矿压监测方案设计及结果分析....................................................................... 57 5.4经济评价分析................................................................................................... 59 5.5本章小结........................................................................................................... 61 6主要结论主要结论............................................................................................63 参考文献参考文献..................................................................................................64 致谢致谢..........................................................................................................67 万方数据 山东科技大学硕士学位论文目录 VII Contents Abstract........................................................................................................................I Content........................................................................................................................V 1Introduction...........................................................................................................1 1.1Raising of project.............................................................................................................1 1.2Research status about gob-side entry retaining.......................................................2 1.3Research status about dual prevention system........................................................6 1.4Research status about emergency management......................................................6 1.5Innovation points of the paper..............................................................................6 1.6Main research contents and technical route............................................................7 2Project necessity of gob-side entry retaining by cutting roof and releasing pressure......................................................................................................................10 2.1Condition of Luxi coal mine..............................................................................10 2.2Technical necessity...........................................................................................14 2.3Economic necessity..........................................................................................16 2.4Safety necessity...............................................................................................18 2.5Conclusions.....................................................................................................23 3Technical Analysis of gob-side entry retaining by cutting roof and releasing pressure......................................................................................................................24 3.1Theory of gob-side entry retaining by cutting roof and releasing pressure................24 3.2Mechanism simulation of pressure-relief.............................................................26 3.3“Differentiated“ support technology..................................................................28 3.4Conclusions.....................................................................................................30 4Risk management and control of gob-side entry retaining by cutting roof and releasing pressure..............................................................................................31 4.1Application of dual prevention system.................................................................31 4.2Emergency management of gob-side entry retaining...........................................36 万方数据 山东科技大学硕士学位论文目录 VIII 4.3Conclusions.....................................................................................................47 5Field practice and economic analysis of gob-side entry retaining by cutting roof and releasing pressure......................................................................................49 5.1Application of support technology......................................................................49 5.2Construction technology of cutting roof and releasing pressure..............................52 5.3Design and results of mine pressure monitoring scheme........................................56 5.4Economic uation analysis............................................................................58 5.5Conclusions.....................................................................................................60 6Conclusions..........................................................................................................62 References..................................................................................................................63 Acknowledgement........................................................................................