千米深井高地压软岩条件下硐室支护设计研究
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摘要
为了解决口孜东井下软岩大硐室的支护问题,分析了两淮矿区深井高地压硐室支护技术现状、特点。并根据口孜东矿主井箕斗装载硐室处工程地质情况,对装载硐室支护方案设计进行了比选和优化,提出了"锚索网带喷+钢筋混凝土+直墙肋梁加固"联合支护形式,其支护效果和经济性大幅提高。可为深井高地压软岩条件下大硐室支护设计提供一定的借鉴经验。
In order to solve the support problem of underground large chamber in soft rock in Kouzidong Coal Mine,the status quo and characteristics of the support technology of the deep shaft high pressure chamber in Huainan and Huaibei Mining Area were analyzed. According to the engineering geological conditions of the skip loading chamber of the main shaft,the support design scheme of the skip loading chamber was selected and optimized,and the"anchor-cable-meshbelt-shotcreting + reinforced concrete + straight wall rib beam reinforcement"combined support scheme was proposed,which greatly improved its support effect and economy. It can provide some references for the design of large chamber support in soft rock deep shaft under high ground pressure.
In order to solve the support problem of underground large chamber in soft rock in Kouzidong Coal Mine,the status quo and characteristics of the support technology of the deep shaft high pressure chamber in Huainan and Huaibei Mining Area were analyzed. According to the engineering geological conditions of the skip loading chamber of the main shaft,the support design scheme of the skip loading chamber was selected and optimized,and the"anchor-cable-meshbelt-shotcreting + reinforced concrete + straight wall rib beam reinforcement"combined support scheme was proposed,which greatly improved its support effect and economy. It can provide some references for the design of large chamber support in soft rock deep shaft under high ground pressure.
引文
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[10]陆占金,曹建军,袁本庆,等.口孜东矿111303工作面围岩应力分布规律数值模拟[J].煤炭技术,2015(11):76-78.
[11]黄旭.复杂环境下软岩变形破坏机理与控制技术研究[J].金属矿山,2009(3):32-34,95.
[12]梁智鹏,范世平,贾怀晓,等.主井箕斗装载硐室数值模拟及现场监测分析[J].煤矿安全,2009(3):198-201.
[2]石建真,李剑.关于国内外地下软岩巷道支护理论与方法的研究[J].中国矿业,2010(19):109-114.
[3]李帅,胡长青,袁亮.千米深井高应力条件下软岩巷道支护技术的探索[C]//第十二次全国岩石力学与工程学术会议论文摘要集,2012.
[4]荣传新,黎明镜,蔡海兵.千米深井主井装载硐室支护结构优化及其内力监测分析[C]//矿山建设工程技术新进展——2009全国矿山建设学术会议文集(上册),2009.
[5]付强,李晓云.软岩巷道支护理论研究与发展[J].矿业安全与环保,2007,34(2):70-72.
[6]陈志勇,姚直书,何超.煤矿主井箕斗装载硐室支护结构优化及受力监测分析[J].煤炭技术,2014(10):307-308.
[7]程桦,蔡海兵,荣传新,等.深立井连接硐室群围岩稳定性分析及支护对策[J].煤炭学报,2011(2):261-266.
[8]刘德利,李文洲.深井软岩装载硐室及马头门支护研究[J].煤矿开采,2011(6):54-55,65.
[9]梁冠军.主井箕斗装载硐室围岩稳定性数值模拟研究[J].中州煤炭,2013(4):8-9,12.
[10]陆占金,曹建军,袁本庆,等.口孜东矿111303工作面围岩应力分布规律数值模拟[J].煤炭技术,2015(11):76-78.
[11]黄旭.复杂环境下软岩变形破坏机理与控制技术研究[J].金属矿山,2009(3):32-34,95.
[12]梁智鹏,范世平,贾怀晓,等.主井箕斗装载硐室数值模拟及现场监测分析[J].煤矿安全,2009(3):198-201.