本文主要研究内容
作者熊富发（2019）在《临涣矿9113工作面运输平巷复合顶板锚网支护技术研究》一文中研究指出：淮北矿区中组煤层复合顶板巷道普遍存在,顶板层数多、厚度薄,且其中还含有软弱夹层,巷道围岩受应力重分布的影响后容易发生离层、冒顶,难以形成稳定的承载结构,巷道支护难题制约了淮北矿区的可持续发展。本文以临涣矿9113工作面运输平巷为研究对象,通过现场调查、实验室试验、数值模拟、理论分析和现场实测等方法,系统地分析了原有U型钢棚支护变形破坏特征及原因,针对不同条件提出不同的锚网支护方案,并在现场进行了工业性试验,本文主要的研究内容及成果有:（1）深入现场调查,收集整理原有U型钢棚巷道围岩变形破坏特征及支护状况,得出U型钢承载性能与复合顶板巷道围岩变形破坏规律之间不相适应是U型钢棚支护发生变形破坏的根本原因,并对巷道顶板煤岩进行了实验室试验,测得了巷道顶板岩层的基本物理力学参数。研究结果表明,临涣矿9113工作面运输平巷为典型的复合顶板巷道,巷道顶板各岩层厚度薄、变化大、且含有软弱夹层,具有一定的独特性。（2）由于复合顶板岩层中含有软弱夹层,为了探究复合顶板巷道锚网支护影响因素,运用FLAC3D数值模拟分别对有无软弱夹层及不同软弱夹层层位进行了对比分析,结果表明,软弱夹层位于锚杆锚固段时对锚杆支护的影响最大,而软弱夹层位于锚杆自由段与位于锚杆锚固区外时对锚杆支护的影响相当,且软弱夹层位于锚杆锚固区范围外时影响略大于软弱夹层位于锚杆锚固区内。（3）根据数值模拟的结果,结合分类支护的思想针对不同的巷道顶板条件,提出了两种不同支护方案,分别对应软弱夹层是否位于锚杆锚固段,并通过数值模拟的方法,对比分析了不同条件下采用不同支护方案的效果,结果表明,“高强预应力锚网索支护技术”方案不足以控制巷道发生变形破坏,通过“高强预应力锚网索+结构补偿锚杆支护技术”方案可对软弱夹层位于锚杆锚固段时进行有效控制。（4）根据研究结果在现场开展了工业性试验,通过分类支护的方式对现场不同条件的顶板采取了不同的支护方案。当软弱夹层位于锚杆锚固段时,采用以锚索为主体的支护方案;软弱夹层位于锚杆自由段及位于锚杆锚固区外时,采用以锚杆为主体的支护方案。现场3个断面监测结果显示,两种支护方案均有效控制了巷道围岩的变形,取得了良好的支护效果。
Abstract
huai bei kuang ou zhong zu mei ceng fu ge ding ban hang dao pu bian cun zai ,ding ban ceng shu duo 、hou du bao ,ju ji zhong hai han you ruan ruo ga ceng ,hang dao wei yan shou ying li chong fen bu de ying xiang hou rong yi fa sheng li ceng 、mao ding ,nan yi xing cheng wen ding de cheng zai jie gou ,hang dao zhi hu nan ti zhi yao le huai bei kuang ou de ke chi xu fa zhan 。ben wen yi lin huan kuang 9113gong zuo mian yun shu ping hang wei yan jiu dui xiang ,tong guo xian chang diao cha 、shi yan shi shi yan 、shu zhi mo ni 、li lun fen xi he xian chang shi ce deng fang fa ,ji tong de fen xi le yuan you Uxing gang peng zhi hu bian xing po huai te zheng ji yuan yin ,zhen dui bu tong tiao jian di chu bu tong de mao wang zhi hu fang an ,bing zai xian chang jin hang le gong ye xing shi yan ,ben wen zhu yao de yan jiu nei rong ji cheng guo you :（1）shen ru xian chang diao cha ,shou ji zheng li yuan you Uxing gang peng hang dao wei yan bian xing po huai te zheng ji zhi hu zhuang kuang ,de chu Uxing gang cheng zai xing neng yu fu ge ding ban hang dao wei yan bian xing po huai gui lv zhi jian bu xiang kuo ying shi Uxing gang peng zhi hu fa sheng bian xing po huai de gen ben yuan yin ,bing dui hang dao ding ban mei yan jin hang le shi yan shi shi yan ,ce de le hang dao ding ban yan ceng de ji ben wu li li xue can shu 。yan jiu jie guo biao ming ,lin huan kuang 9113gong zuo mian yun shu ping hang wei dian xing de fu ge ding ban hang dao ,hang dao ding ban ge yan ceng hou du bao 、bian hua da 、ju han you ruan ruo ga ceng ,ju you yi ding de du te xing 。（2）you yu fu ge ding ban yan ceng zhong han you ruan ruo ga ceng ,wei le tan jiu fu ge ding ban hang dao mao wang zhi hu ying xiang yin su ,yun yong FLAC3Dshu zhi mo ni fen bie dui you mo ruan ruo ga ceng ji bu tong ruan ruo ga ceng ceng wei jin hang le dui bi fen xi ,jie guo biao ming ,ruan ruo ga ceng wei yu mao gan mao gu duan shi dui mao gan zhi hu de ying xiang zui da ,er ruan ruo ga ceng wei yu mao gan zi you duan yu wei yu mao gan mao gu ou wai shi dui mao gan zhi hu de ying xiang xiang dang ,ju ruan ruo ga ceng wei yu mao gan mao gu ou fan wei wai shi ying xiang lve da yu ruan ruo ga ceng wei yu mao gan mao gu ou nei 。（3）gen ju shu zhi mo ni de jie guo ,jie ge fen lei zhi hu de sai xiang zhen dui bu tong de hang dao ding ban tiao jian ,di chu le liang chong bu tong zhi hu fang an ,fen bie dui ying ruan ruo ga ceng shi fou wei yu mao gan mao gu duan ,bing tong guo shu zhi mo ni de fang fa ,dui bi fen xi le bu tong tiao jian xia cai yong bu tong zhi hu fang an de xiao guo ,jie guo biao ming ,“gao jiang yu ying li mao wang suo zhi hu ji shu ”fang an bu zu yi kong zhi hang dao fa sheng bian xing po huai ,tong guo “gao jiang yu ying li mao wang suo +jie gou bu chang mao gan zhi hu ji shu ”fang an ke dui ruan ruo ga ceng wei yu mao gan mao gu duan shi jin hang you xiao kong zhi 。（4）gen ju yan jiu jie guo zai xian chang kai zhan le gong ye xing shi yan ,tong guo fen lei zhi hu de fang shi dui xian chang bu tong tiao jian de ding ban cai qu le bu tong de zhi hu fang an 。dang ruan ruo ga ceng wei yu mao gan mao gu duan shi ,cai yong yi mao suo wei zhu ti de zhi hu fang an ;ruan ruo ga ceng wei yu mao gan zi you duan ji wei yu mao gan mao gu ou wai shi ,cai yong yi mao gan wei zhu ti de zhi hu fang an 。xian chang 3ge duan mian jian ce jie guo xian shi ,liang chong zhi hu fang an jun you xiao kong zhi le hang dao wei yan de bian xing ,qu de le liang hao de zhi hu xiao guo 。
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论文详细介绍
论文作者分别是来自中国矿业大学的熊富发，发表于刊物中国矿业大学2019-07-18论文，是一篇关于复合顶板论文,软弱夹层论文,锚网支护论文,围岩控制论文,中国矿业大学2019-07-18论文的文章。本文可供学术参考使用，各位学者可以免费参考阅读下载，文章观点不代表本站观点，资料来自中国矿业大学2019-07-18论文网站，若本站收录的文献无意侵犯了您的著作版权，请联系我们删除。
标签：复合顶板论文; 软弱夹层论文; 锚网支护论文; 围岩控制论文; 中国矿业大学2019-07-18论文;