| Experimental study on prediction model for maximum rebound ratio |
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| 作者姓名： | 雷卫东 滕军 A.HEFNY 赵坚 关炯 |
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| 作者单位： | [1]Department of Urban and Civil Engineering, Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen 518055, China [2]School of Civil and Environmental Engineering, Nanyang Technological University, Singapore 639798, Singapore [3]Ecole Polytechnique Federale de Lausanne （EPFL）, Rock Mechanics Laboratory, Lausanne CH-1015, Switzerland [4]College of Architecture and Civil Engineering, China University of Mining and Technology, Xuzhou 221008, China [5]Kvaerner E＆C Singapore Private limited, Aker Kvaerner Asia Pacific, Singapore 118254, Singapore |
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| 基金项目： | 国家自然科学基金;国家重点基础研究发展计划(973计划) |
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| 摘 要： | The proposed prediction model for estimating the maximum rebound ratio was applied to a field explosion test, Mandai test in Singapore. The estimated possible maximum peak particle velocities(PPVs) were compared with the field records. Three of the four available field-recorded PPVs lie exactly below the estimated possible maximum values as expected, while the fourth available field-recorded PPV lies close to and a bit higher than the estimated maximum possible PPV. The comparison results show that the predicted PPVs from the proposed prediction model for the maximum rebound ratio match the field-recorded PPVs better than those from two empirical formulae. The very good agreement between the estimated and field-recorded values validates the proposed prediction model for estimating PPV in a rock mass with a set of joints due to application of a two dimensional compressional wave at the boundary of a tunnel or a borehole.
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| 关 键 词： | 爆破波 场爆炸实验 最大回弹比 实验研究 |
| 收稿时间： | 26 May 2006 |
| 修稿时间： | 2006-05-26 |
Experimental study on prediction model for maximum rebound ratio |
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| Lei Wei-dong , Teng Jun , A. Hefny, Zhao Jian and Guan Jiong.Experimental study on prediction model for maximum rebound ratio[J].Journal of Central South University of Technology,2007,14(1):115-119. |
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| Authors: | Lei Wei-dong Teng Jun A Hefny Zhao Jian and Guan Jiong |
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| Affiliation: | 1. Department of Urban and Civil Engineering, Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen 518055, China; 2. School of Civil and Environmental Engineering, Nanyang Technological University, Singapore 639798, Singapore; 3. Ecole Polytechnique Federale de Lausanne (EPFL |
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| Abstract: | The proposed prediction model for estimating the maximum rebound ratio was applied to a field explosion test, Mandai test in Singapore. The estimated possible maximum peak particle velocities(PPVs) were compared with the field records. Three of the four available field-recorded PPVs lie exactly below the estimated possible maximum values as expected, while the fourth available field-recorded PPV lies close to and a bit higher than the estimated maximum possible PPV. The comparison results show that the predicted PPVs from the proposed prediction model for the maximum rebound ratio match the field-recorded PPVs better than those from two empirical formulae. The very good agreement between the estimated and field-recorded values validates the proposed prediction model for estimating PPV in a rock mass with a set of joints due to application of a two dimensional compressional wave at the boundary of a tunnel or a borehole. |
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| Keywords: | blasting wave maximum rebound ratio joint stiffness field explosion test |
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