| 破碎围岩环境下巷道应力与变形监测 |
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| 引用本文： | 李立波,来兴平,李玉民,林红梅.破碎围岩环境下巷道应力与变形监测[J].西安科技大学学报,2010,30(1). |
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| 作者姓名： | 李立波 来兴平 李玉民 林红梅 |
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| 作者单位： | 1. 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
2. 神华宁夏煤业集团,宁夏,银川,750002 |
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| 基金项目： | 国家自然科学基金项目，教育部博士点基金项目，陕西省教育厅重点实验室基金项目 |
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| 摘 要： | 开采过程中,破碎围岩环境下巷道煤岩结构及应力与变形随时间演化行为直接影响其稳定性。通过理论计算,结合现场应力监测、声发射(acoustic emission,AE)和钻孔窥视等手段,定量确定了工作面煤巷的松动范围和塑性区范围,综合分析了破碎围岩环境下煤岩非对称变形特征,为工作面安全开采提供了依据。
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| 关 键 词： | 破碎围岩环境 应力与变形监测 声发射特征 岩体破坏范围 |
Monitoring of the deformation and surrounding stress of a roadway under broken rock mass environment |
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| LI Li-bo,LAI Xing-ping,LI Yu-min,LIN Hong-mei.Monitoring of the deformation and surrounding stress of a roadway under broken rock mass environment[J].JOurnal of XI’an University of Science and Technology,2010,30(1). |
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| Authors: | LI Li-bo LAI Xing-ping LI Yu-min LIN Hong-mei |
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| Abstract: | In the process of mining under broken rock mass environment,the stability of structure of surrounding rock-mass will be directly influenced due to stress and deformation evolution.Based on the monitoring instrument of surrounding stress,acoustic emission (AE) and borehole-peer,the deformation and stress characteristics are comprehensively analyzed under the fractured surrounding rock mass.Finally,using theoretical calculation and in-situ test,the loose scope and plastic zone were confirmed quantitatively.Al... |
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| Keywords: | broken rock mass environment stress and deformation monitoring characteristics of acoustic emission(AE) range of rock fracture |
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