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Experimental study on prediction model for maximum rebound ratio

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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 Deak 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 ipints due to application of a two dimensional compressional wave at the boundary of a tunnel or a borehole.

blasting wavemaximum rebound ratiojoint stiffnessfield explosion test

LEI Wei-dong、TENG Jun、A.HEFNY、ZHAO Jian、GUAN Jiong

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Department of Urban and Civil Engineering, Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen 518055, China

School of Civil and Environmental Engineering, Nanyang Technological University,Singapore 639798, Singapore

Ecole Polytechnique Federale de Lausanne(EPFL), Rock Mechanics Laboratory,Lausanne CH-1015, Switzerland

College of Architecture and Civil Engineering, China University of Mining and Technology, Xuzhou 221008, China

Kvaerner E&C Singapore Private limited, Aker Kvaerner Asia Pacific, Singapore 118254, Singapore

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国家自然科学基金国家重点基础研究发展计划(973计划)

502780572002CB412703

2007

中南大学学报(英文版)
中南大学

中南大学学报(英文版)

影响因子：0.47
ISSN：2095-2899
年,卷(期)：2007.14(1)
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