兴隆庄煤矿下组煤安全带压开采条件评价.pdf

硕士学位论文 兴隆庄煤矿下组煤安全带压开采条件评价 uation of Conditions under the Lower Coal Seam during Mining with Pressure in Xinglongzhuang Mine [国家重点基础研究发展计划项目（2013CB036003）] 作者唐鑫 导师姜振泉 教授 中国矿业大学 二○一五年五月 万方数据 中图分类号TD12学校代码10290 UDC622密级公开 中国矿业大学 硕士学位论文 兴隆庄煤矿下组煤安全带压开采条件评价 uation of Conditions under the Lower Coal Seam during Mining with Pressure in Xinglongzhuang Mine 作者唐鑫导师姜振泉 申请学位工学硕士培养单位资源与地球科学学院 学科专业地质工程研究方向工程地质与岩土工程 答辩委员会主席评 阅 人 二○一五年五月 万方数据 学位论文使用授权声明学位论文使用授权声明 本人完全了解中国矿业大学有关保留、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 作为申请学位的条件之一， 学位论文著作权拥有者须授权所在学校拥有学位论文的 部分使用权，即①学校档案馆和图书馆有权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；②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 内师生阅读、浏览。另外，根据有关法规，同意中国国家图书馆保存研究生学位论文。 （保密的学位论文在解密后适用本授权书）。 作者签名导师签名 年月日年月日 万方数据 论文审阅认定书论文审阅认定书 研究生 唐鑫 在规定的学习年限内，按照研究生培养方案的要求，完 成了研究生课程的学习， 成绩合格； 在我的指导下完成本学位论文,经审阅， 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，同意将本论文作为学位申请论文送专家评审。 导师签字 年月日 万方数据 致谢致谢 光阴飞逝，转眼，三年的研究生学习时光就要画上句号。此时，心中太多的感慨、 感动与感激。感慨时光的流逝，感动老师的教诲、师兄弟的照顾、同学朋友的相助，感 激学校的培养、领导的栽培。在此，对所有参与到我生活中的人和事表示感谢，特别对 我的论文有过指导和帮助的人表示衷心感谢。 感谢我的导师姜振泉教授的大力支持和悉心指导。 导师在论文选题上给予高瞻远瞩 的指导,在技术路线的设计上给予了高屋建瓴的点拨,在论文框架的构建以及最后的文 理疏通、审阅定稿等每一步工作中,导师也都倾注了大量的心血和智慧。导师渊博的知 识、敏锐的思维，踏实勤奋的工作作风都深深影响着我，可以说他不仅授我以文，而且 也教我以如何做人。回首过往三年，我的学习、生活、工作中所取得的每一点进步都离 不开导师的关怀与帮助，师恩难忘，我会铭记在心，在此，谨向我的导师表示最衷心的 感谢和最崇高的敬意。在校期间，课题组朱术云副教授和孙强副教授对于我的学习、工 作、生活等各方面给予莫大的帮助，在此也向他们表示由衷地感谢。 感谢矿大杨永国教授、李文平教授、曹丽文教授、朴春德副教授、于宗仁副教授、 李小琴副教授等多位老师在论文选题及答辩过程以及日常生活中的大力帮助， 在此表示 衷心的感谢。 感谢师兄钱自卫博士、张蕊博士、黄震博士、梁德贤博士在论文的框架构建和文理 疏通上给予极大的帮助。感谢同门张卫强博士、周海涛博士、符家驹硕士、邓舒硕士在 三年的学习生活中给予极大的帮助。 感谢师弟师妹刘彬硕士、 姚亚辉硕士、 孙晓倩硕士、 吴现帅硕士、张辉硕士、刘荡平硕士、张瑞硕士、杨礼宁硕士、耿济世硕士在科研和生 活中给予的帮助。 感谢好友郭伟红博士、张少腾硕士、葛明洋硕士、李佩硕士、赵立鹏硕士、刘飞硕 士、张强硕士、张冬冬硕士等陪伴我度过三年的快乐时光，你们给我在矿大的三年添上 上浓墨重彩的一笔，往日生活中的点点滴滴都将珍藏心底。感谢我的家人、亲戚朋友们 对我关怀、鼓励和无私奉献，你们不仅是我此刻顺利完成学业，也是我漫漫人生路上的 坚实后盾和精神支柱。 最后，感谢各位专家在百忙之中对论文评审提出宝贵意见。 万方数据 I 摘要摘要 随着煤矿开采深度不断增加， 煤层底板突水已成为威胁煤矿安全生产的主要矿井地 质灾害之一，研究采动影响下下组煤底板隔水岩层的阻渗性能，对于底板突水的评价和 防治具有重要意义。 为此， 本文以兖州矿区兴隆庄煤矿下组煤底板带压开采为工程背景， 对其深部下组煤采区的突水危险性进行了综合研究。 根据矿井水文地质资料及相邻矿井的下组煤底板带压开采资料， 分析了兴隆庄煤矿 下组煤底板带压开采条件。 影响下组煤安全开采的含水层主要为十三灰、 十四灰和奥灰， 井田范围内十四灰大部分沉缺，且十三灰与十四灰间隔厚度较小，将十三灰与十四灰并 为同一含水层考虑。奥灰含水层富水性中等，主要通过断裂构造与其他含水层发生水力 联系。下组煤底板砂岩、薄层灰岩及泥质岩均为良好的隔水层，17 煤与十三灰、十三灰 与奥灰两个隔水层段的岩性及其组合结构、 发育厚度对于下组煤底板带压开采的安全性 起到至关重要的作用。 通过现场原位压渗实验， 获取兖州矿区下组煤不同岩性组合及结构条件底板的阻渗 性对比试验数据， 提出了适用于兴隆庄煤矿下组煤底板不同岩性及结构的阻水岩层平均 阻渗强度建议值，在此基础上建立基于阻渗条件的评价模型。 综合运用突水系数法和阻渗条件对兴隆庄煤矿下组煤带压开采底板突水危险性进 行了评价分区， 结果表明井田 17 煤正常结构状态底板在井田东南边下一、 下三等采区存 在发生十三灰水突水的可能。对于构造扰动底板，根据煤层与含水层间阻水岩层厚度进 行分区评价，结果表明发生十三灰水沿断层带导渗的可能性很大，阻水岩层厚度小于 60m 时，存在奥灰水沿断层带导渗的可能，阻水岩层厚度大于 60m 时开采 16上煤对于 落差不大于 8m 的断层，底板阻水岩层可以有效地阻隔奥灰水沿断层带导渗，开采 17 煤时，5m 落差是断层发生渗透破坏的临界条件。 最后以兖州矿区相邻井田两个下组煤工作面为例， 对比分析突水系数法和阻渗条件 评价下组煤底板带压开采安全条件的适用性， 结果表明阻渗强度能更加真实地反映底板 阻水能力。 此次基于阻渗条件对兴隆庄煤矿下组煤底板带压开采条件的评价结果能够有效地 指导井田下组煤开采，为井田下组煤带压开采水害防治提供技术保障。 该论文有图 44 幅，表 24 个，参考文献 85 篇。 关键词关键词下组煤；带压开采；突水系数；阻渗强度；安全带压系数 万方数据 II Abstract Along with the depth of coal mining increasing, water inrushing from coal seam floor has been one of main mine geological disasters threaten the safety production of mine. Research on water-resisting property of strata on Lower Coal Group Floor in effect of mining has great significance for the uation and prevention of water inrush.Therefore, risk of water inrush in deep lower group of Coal Seams mining had been comprehensive studied, under engineering background of mining with pressure on Lower Coal Group Floor in Xinglongzhuang coal mine of Yanzhou mining area, on this paper. According to the hydrological geological datas and datas of mining with pressure on Lower Coal Group Floor in next neighboring mine, conditions of mining with pressure on Lower Coal Group Floor in Xinglongzhuang coal mine had been analysised. Aquifers had effect of Safety mining on Lower Coal Seam are NO.13 limestone、NO.14 limestone and Ordovician limestone. NO.13 limestone and NO.14 limestone had been mergered the same layer because most areas of Mine had no NO.14 limestone, and thickness between NO.13 limestone and NO.14 limestone was small. Water abundance of Ordovician limestone was medium and water of it flow into other aquifers throw fault zone. Sandstone、thin limestone and argillaceous rock were favorable aquifuge. The lithology、structure and development of thickness between NO.17 coal seam and NO.13 limestone、NO.13 limestone and Ordovician limestone had important affect on safety of mining with pressure on Lower Coal Group Floor. Through the in-situ seepage tests, contrast test datas of water-resisting property about different lithology and structure Lower Coal Seam Floor in Yanzhou mining area had been Obtained. In addition, recommended value of average water-resisting strength about different lithology and structure rock stratums on Lower Coal Seam Floor in Xinglongzhuang coal mine had been proposed. On basis of this, uation model based on condition of water-resisting property had been established. Risk of water inrush on Lower Coal Group Floor in Xinglongzhuang coal mine had been uated and parted through water inrush coefficient and condition of water-resisting property. The results show that there was possibility that NO.13 limestone water inrushed from normal floor in southeast following first、following third mine etc. of mine when mining NO.17 coal. Floor at fault zone had been uated and parted according to the thickness of rock stratum between coal seam and aquifer. The results show that there was possibility that NO.13 limestone water inrushed from fault zone. Ordovician limestone water could not inrushed from fault zone in condition ofthe fault throw less than 8m and thickness of rock stratum more than 60m when mining NO.16 coal. The critical condition to produce seepage 万方数据 III failure was the fault throw achieving 5m when mining NO.17 coal. At last, the applicability of uating safety conditions of mining with pressure on Lower Coal Group Floor through water inrush coefficient and condition of water-resisting property had been comparative analysised on basis of analysising two mining faces of Lower Coal Group Floor in Yanzhou mining area. The results show that the water-resisting strength coule reflect the ability of preventing water veritably. The uation results about conditions of mining with pressure on Lower Coal Group Floor in Xinglongzhuang coal mine, on basis of water-resisting condition, could guide mining Lower Coal Seam effectively. It could provide technical support on prevention and cure of water damage about mining Lower Coal Seam with pressure in mine. Key words Lower Coal Seam; mining with pressure;water inrush coefficient;water-resisting strength;safety factor under pressure 万方数据 IV 目录目录 摘要摘要..............................................................................................................................................I 目录目录...........................................................................................................................................IV 图清单图清单........................................................................................................................................VIII 表清单表清单...........................................................................................................................................XI 变量注释表变量注释表................................................................................................................................XIII 1 绪论绪论.............................................................................................................................................1 1.1 研究背景及意义........................................................................................................................1 1.2 国内外研究现状........................................................................................................................2 1.3 存在的问题................................................................................................................................7 1.4 研究内容、方法与技术路线...................................................................................................8 2 矿井地质条件矿井地质条件...........................................................................................................................10 2.1 井田位置及交通条件.............................................................................................................10 2.2 自然地理.................................................................................................................................10 2.3 矿井地质概况..........................................................................................................................11 2.4 下组煤水文地质概况..............................................................................................................17 3 下组煤底板带压开采条件下组煤底板带压开采条件.......................................................................................................21 3.1 含水层特征..............................................................................................................................21 3.2 隔水层特征..............................................................................................................................28 3.3 构造控水特征..........................................................................................................................32 3.4 底板采动破坏深度..................................................................................................................33 4 下组煤底板带压开采阻渗效应下组煤底板带压开采阻渗效应...............................................................................................36 4.1 底板阻渗能力.........................................................................................................................36 4.2 底板阻渗评价模型.................................................................................................................47 5 下组煤底板带压开采安全性评价下组煤底板带压开采安全性评价...........................................................................................51 5.1 基于底板突水系数评价.........................................................................................................51 5.2 基于底板阻渗条件评价.........................................................................................................58 5.3 安全性分区.............................................................................................................................68 5.4 构造扰动底板阻渗性.............................................................................................................76 6 底板带压开采安全条件评价实例底板带压开采安全条件评价实例............................................................................................81 万方数据 V 6.1 杨村煤矿 4601 工作面底板评价实例................................................................................... 81 6.2 杨村煤矿 4603 工作面底板评价实例................................................................................... 82 7 结论及建议结论及建议................................................................................................................................86 7.1 结论.........................................................................................................................................86 7.2 建议.........................................................................................................................................87 参考文献参考文献.......................................................................................................................................88 作者简历作者简历.......................................................................................................................................93 学位论文原创性声明学位论文原创性声明...................................................................................................................94 学位论文数据集学位论文数据集...........................................................................................................................95 万方数据 VI Contents Abstract.........................................................................................................................................II Contents....................................................................................................................................... VI List of Figures...........................................................................................................................VIII List of Tables................................................................................................................................XI List of Variables........................................................................................................................XIII 1 Introduction.................................................................................................................................1 1.1 Research Background and Significance......................................................................................1 1.2 Research Present Situation of Domestic and Foreign.................................................................2 1.3 Existing Problems.......................................................................................................................7 1.4 Research Contents、Approach and Technical Way....................................................................8 2 Geological Conditions of Mine................................................................................................ 10 2.1 Location of Mine and Traffic Conditions..................................................................................10 2.2 Natural Geography...................................................................................................................10 2.3 Geology General Situation of Mine..........................................................................................11 2.4 Hydro-geological Condition of Lower Coal Seam....................................................................17 3 The Conditions of Coal Mining under Pressure on Lower Coal Group Floor................... 21 3.1 Features ofAquifer...................................................................................................................22 3.2 Features ofAquifuge................................................................................................................ 28 3.3 Features of Structure Controlling Water...................................................................................32 3.4 Failure Depth of Mining Floor................................................................................................. 33 4 Water-resisting Effect of Coal Mining under Pressure on Lower Coal Group Floor........ 36 4.1 Water-resistingAbility of Floor................................................................................................36 4.2 uation Model of Water-resisting Property on Coal Floor...................................................47 5 Safety uation of Coal Mining under Pressure on Lower Coal Group Floor............... 51 5.1 uation of Water Inrush Coefficient....................................................................... 51 5.2 uation o