| 深部高应力软弱围岩支护方案评价及优化 |
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| 引用本文： | 伍中建,汤国禹,朱新民,杨海萍.深部高应力软弱围岩支护方案评价及优化[J].矿业工程研究,2011,26(2):1-7. |
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| 作者姓名： | 伍中建 汤国禹 朱新民 杨海萍 |
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| 作者单位： | 丰城曲江煤炭开发有限责任公司,江西丰城,331136 |
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| 摘 要： | 针对深部高应力巷道围岩难支护问题,以江西曲江矿西大巷为例,采用数值分析对返修支护方案进行评价和优化.在原返修支护方案的基础之上,设计了"锚网+U29半圆钢架+围岩胶结注浆"联合支护为主的4种工况,并对它们进行了计算和分析.结果表明在进行"锚网+U29棚架+围岩胶结注浆"联合支护的同时布设底角锚杆可以减少顶板和两帮的移近量,而且还可以减少底板塑性破坏单元区域.最后,给出了巷道围岩的整体返修优化方案和具体支护参数.该研究对控制深部矿井巷道围岩的变形具有重要工程价值.
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| 关 键 词： | 深部高应力 巷道支护 数值分析 方案优化 |
On supporting technology for deep soft rock under high stress and scheme optimization |
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| WU Zhongjian,TANG Guoyu,ZHU Xinmin,YANG Haiping.On supporting technology for deep soft rock under high stress and scheme optimization[J].Mineral Engineeering Reseach,2011,26(2):1-7. |
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| Authors: | WU Zhongjian TANG Guoyu ZHU Xinmin YANG Haiping |
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| Affiliation: | WU Zhongjian,TANG Guoyu,ZHU Xinmin,YANG Haiping(Qujiang Coal Developing Co.Ltd,Fengcheng 331136,China) |
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| Abstract: | Aimed at the supporting problem of deep soft rock under high stress,the western main roadway in Qujiang Coal Mine is taken as an example,and the numerical analysis method is adopted to evaluate and optimize the repair supporting scheme.Four schemes of the combined supporting of bolting with wire mesh,U29 semi-circle steel frame and cement slip-casting is designed based on the repair supporting scheme,computation and analysis are made to them.The results showed that the combined supporting of bolting with wi... |
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| Keywords: | deep and high stress roadway support numerical analysis scheme optimization |
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