| 爆破振动对砂浆锚杆的影响研究 |
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| 引用本文： | 易长平,卢文波.爆破振动对砂浆锚杆的影响研究[J].岩土力学,2006,27(8):1312-1316. |
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| 作者姓名： | 易长平 卢文波 |
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| 作者单位： | 1. 武汉理工大学 资源与环境工程学院，武汉 430070；2. 武汉大学 水利水电学院，武汉 430072 |
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| 基金项目： | 中国科学院资助项目;重庆市应用基础研究基金;湖北省自然科学基金 |
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| 摘 要： | 爆破振动对锚杆有不利影响，运用应力波理论，并利用波函数展开法，研究了爆炸应力波与锚杆的相互作用过程，给出了爆破振动作用下砂浆锚杆周围砂浆体中的动应力和峰值振速分布情况，比较了不同频率应力波对锚杆的影响，导出了不同频率应力波作用下砂浆锚杆的安全质点振速范围。研究结果表明：入射波频率越高，砂浆锚杆所允许的安全质点峰值振速越大。
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| 关 键 词： | 爆破振动 砂浆锚杆 质点峰值振动速度 频率 |
| 文章编号： | 1000-7598-（2006）08-1312-05 |
| 收稿时间： | 2004-10-18 |
| 修稿时间： | 2005-03-10 |
Research on influence of blasting vibration on grouted rockbolt |
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| YI Chang-ping,LU Wen-bo.Research on influence of blasting vibration on grouted rockbolt[J].Rock and Soil Mechanics,2006,27(8):1312-1316. |
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| Authors: | YI Chang-ping LU Wen-bo |
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| Institution: | 1. School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China; 2. School of Water Resources and Hydropower, Wuhan University, Wuhan 430072, China |
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| Abstract: | Blasting vibration can induce some adverse influence on grouted rockbolt. The stress wave theory and wave function expansion method are adopted to analyze the interaction between stress wave and rockbolt. The distribution of stress and peak particle velocity around grout under the blasting vibration is derived; influences of stress wave in different frequencies on grouted rockbolt are compared; the safe peak particle velocity range in the grouted rockbolt is derived with stress waves of different frequencies. The result shows that the higher the frequency of incident wave is, the bigger the safe peak vibration velocity for grouted rockbolt is. |
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| Keywords: | blasting vibration grouted rockbolt peak particle velocity frequency |
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