| 高应力硐室群锚注联合支护技术 |
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| 引用本文： | 魏树群,张吉雄,张文海,马立强.高应力硐室群锚注联合支护技术[J].采矿与安全工程学报,2008,25(3). |
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| 作者姓名： | 魏树群 张吉雄 张文海 马立强 |
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| 作者单位： | 1. 金牛能源股份有限公司邢东矿,河北,邢台,054000
2. 中国矿业大学,矿业工程学院,煤炭资源与安全开采国家重点实验室,江苏,徐州,221008 |
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| 基金项目： | 中国矿业大学校科研和教改项目，煤炭资源与安全开采国家重点实验室开放基金 |
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| 摘 要： | 为解决深井高应力条件下大型软岩硐室的维护难题,本文在分析高应力硐室群围岩变形破坏机理的基础上,研究了锚注联合加固的支护机理和工艺流程,提出了浅部围岩化学注浆、对穿组合锚索等施工技术,研究了围岩两步耦合注浆的机理及其主要技术参数、注浆设备和工艺流程.邢东矿二水平泵房、变电所进行加固修复工程的FLAC数值模拟计算结果和实际工程效果表明,采用锚注联合支护技术能有效提高岩体强度、改善围岩力学性能和结构、提高围岩的承栽力及加强锚索的锚固力.进行加固后的深井高应力硐室群围岩变形量明显减小,证明锚注联合支护技术是解决煤矿高应力软岩工程安全维护的有效手段,可在类似条件下的深井高应力大型硐室维护中推广应用.
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| 关 键 词： | 锚注 联合支护 加固 承载力 |
Bolt-Grouting Combined Support Technology for Large-Scale Cavern Group with High Ground Pressure |
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| WEI Shu-qun,ZHANG Ji-xiong,ZHANG Wen-hai,MA Li-qiang.Bolt-Grouting Combined Support Technology for Large-Scale Cavern Group with High Ground Pressure[J].Journal of Mining and Safety Engineering,2008,25(3). |
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| Authors: | WEI Shu-qun ZHANG Ji-xiong ZHANG Wen-hai MA Li-qiang |
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| Affiliation: | 1.Xingdong Coal Mine;Hebei Jinniu Energy Co.Ltd.;Xingtai;Hebei 054000;China;2.School of Mining Engineering;State Key Laboratory of Coal Resources and Mine Safety;China University of Mining & Technology;Xuzhou;Jiangsu 221008;China |
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| Abstract: | To solve the problem of difficult maintenance of the large-scale cavern group with high ground pressure,the deformation mechanism of surrounding rocks of high stress cavern group was analyzed and the technological process of bolt-grouting studied.On the basis of this,we proposed a new technique,that is,chemical grouting for shallow surrounding rocks and opposed prestressed anchors in combination with anchor cable.In addition,we studied the main technical parameters of two-step coupling grouting,grouting equ... |
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| Keywords: | bolt and grouting combined support reinforcement supporting capacity |
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