| 复杂破碎围岩状态下大断面巷道稳定性综合分析 |
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| 引用本文： | 张子飞,李立波,来兴平.复杂破碎围岩状态下大断面巷道稳定性综合分析[J].西安科技大学学报,2008,28(4). |
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| 作者姓名： | 张子飞 李立波 来兴平 |
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| 作者单位： | 1. 神华新疆能源有限责任公司,新疆,乌鲁木齐,830027
2. 西安科技大学,能源学院,陕西,西安,710054;教育部西部矿井开采及灾害防治重点实验室,陕西,西安,710054 |
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| 基金项目： | 国家自然科学基金项目
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| 摘 要： | 复杂破碎围岩状态下大断面巷道开挖后,巷道围岩出现应力集中。受开采扰动的影响,岩体强度大大降低,围岩呈现不稳定变形破坏,如冒顶、片帮等,给煤矿安全生产带来极大威胁。依据我国西部强震区复杂围岩环境下某煤矿大断面巷道顶板离层、巷帮压力等监测数据,结合钻孔窥视,围岩松动圈监测系统,对该区顶板离层、巷帮压力变化规律进行了声-光-电多元指标参数综合研究,较全面的对复杂破碎围岩状态下大断面巷道的稳定性进行综合分析。
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| 关 键 词： | 西部强震区 破碎围岩 大断面巷道 多元指标参数 |
Hybrid evaluation on large-scale roadway's stability under complex and cracked condition |
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| ZHANG Zi-fei,LI Li-bo,LAI Xing-ping.Hybrid evaluation on large-scale roadway's stability under complex and cracked condition[J].JOurnal of XI’an University of Science and Technology,2008,28(4). |
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| Authors: | ZHANG Zi-fei LI Li-bo LAI Xing-ping |
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| Institution: | ZHANG Zi-fei1,LI Li-bo2,3,LAI Xing-ping2,3 |
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| Abstract: | After large section entries excavated under complex fragmentized surroundings,stress in adjacent rock may concentrate which makes the rock's strength decrease seriously.Based on field monitoring data of roof delaminating and pressure in large roadway of a coal mine at the western intensity earthquake region surrounded by complex geologic condition,associated with borehole camera tool and Broken-Zone Device,the law of roof's delaminating and pressure development are researched using multi-parameters.Large section entry's stabilization under complex fragmentized surroundings are estimated and evaluated comprehensively. |
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| Keywords: | western intensity earthquake region cracked surrounding rock large-scale roadway multi-parameters |
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