| 预应力锚杆弹性波检测的激振波及其传播规律研究 |
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| 引用本文： | 万世文,徐金海,吴锐.预应力锚杆弹性波检测的激振波及其传播规律研究[J].采矿与安全工程学报,2011,28(4):581-584. |
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| 作者姓名： | 万世文 徐金海 吴锐 |
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| 作者单位： | 1. 中国矿业大学煤炭资源与安全开采国家重点实验室,矿业工程学院,江苏徐州221116;山西潞安矿业集团,山西长治046204
2. 中国矿业大学煤炭资源与安全开采国家重点实验室,矿业工程学院,江苏徐州221116 |
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| 基金项目： | 国家自然科学基金项目(50874104) |
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| 摘 要： | 由于预应力的影响,煤矿预应力锚杆的振动特性与非预应力锚杆截然不同,通过理论分析、数值模拟和现场实测,分析了预应力锚杆弹性波检测的激振及其振动特性.采用理论分析和数值模拟方法分析了预应力锚杆锚固体波速的影响因素,得出了锚固体波速计算公式；并分析了激振应力波在预应力锚固系统内的传播规律.预应力和锚固体黏结强度大小不仅影响反...
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| 关 键 词： | 预应力锚杆 振动特性 锚固体波速 次生反射 |
Study on the Exciting Wave and Its Propagation Rules of Elastic Wave Testing on Prestressed Anchor |
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| WAN Shi-wen,XU Jin-hai,WU Rui.Study on the Exciting Wave and Its Propagation Rules of Elastic Wave Testing on Prestressed Anchor[J].Journal of Mining and Safety Engineering,2011,28(4):581-584. |
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| Authors: | WAN Shi-wen XU Jin-hai WU Rui |
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| Affiliation: | WAN Shi-wen1,2,XU Jin-hai1,WU Rui1(1.State Key Laboratory of Coal Resources and Safe Mining,Shool of Mines,China University of Mining & Technology,Xuzhou,Jiangsu 221116,China,2.Lu'an Mining Group,Changzhi,Shanxi 046204,China) |
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| Abstract: | Because of the effect of prestress,the vibration characteristic of prestressed anchor in coal mine is completely different from that of the nonprestressed anchor.In this paper,we analyzed the exciting and vibration characteristics of the prestressed anchor during elastic wave testing by theoretical analysis,numerical simulation and field measurement.First,the influencing factors of wave velocity of anchorage body in prestressed anchor were analyzed by theoretical analysis and numerical simulation,and the ca... |
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| Keywords: | prestressed anchor vibration characteristic wave velocity of anchorage body secondary reflection |
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