| 深埋巷道围岩稳定性分析与控制技术研究 |
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| 引用本文： | 靖洪文,李元海,许国安.深埋巷道围岩稳定性分析与控制技术研究[J].岩土力学,2005,26(6):877-880. |
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| 作者姓名： | 靖洪文 李元海 许国安 |
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| 作者单位： | 中国矿业大学 建筑工程学院 徐州 221008 |
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| 基金项目： | 国家自然科学基金项目资助(50474063,50490273) |
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| 摘 要： | 针对岩石具有应变软化和剪胀的特点，推导了巷道围岩松动圈理论计算公式，理论分析了巷道埋深、围岩强度、应变软化程度以及支护阻力对围岩稳定性的影响，提出了锚喷、锚注和锚索“三锚”支护的新概念，并成功地应用于工程实践，取得了良好的技术和经济效益。
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| 关 键 词： | 深埋巷道 围岩稳定 松动圈 &ldquo 三锚&rdquo 支护 |
| 文章编号： | 1000-7598-(2005)06-0877-05 |
| 收稿时间： | 2005-02-28 |
Analysis of surrounding rock stability of deeply buried roadways and study on its control techniques |
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| JING Hong-wen,LI Yuan-hai,XU Guo-an.Analysis of surrounding rock stability of deeply buried roadways and study on its control techniques[J].Rock and Soil Mechanics,2005,26(6):877-880. |
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| Authors: | JING Hong-wen LI Yuan-hai XU Guo-an |
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| Institution: | School of Architecture and Civil Engineering, China University of Mining & Technology, Xuzhou 221008, China |
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| Abstract: | Based on the rock characteristics of strain-softening and dilatancy, this paper developed a theoretical formula for calculating broken zone thickness of roadways, analyzed the influence of buried depth, rock strength, strain-softening extent, and support pressure on the surrounding rock stability of the deeply buried roadways. The new concept of ‘three bolting’ support is put forward, which refers to a supporting method combining bolt and shotcrete, grout, and anchorage cable. This new supporting method has been applied to engineering practice; and favorable technical and economic benefit is obtained. |
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| Keywords: | deeply buried roadway surrounding rock stability broken zone ‘three bolting&rsquo support |
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