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| Influence of Hardening Time and Concrete Grade on Rock Bolt Testing with Reflected Wave |
CHEN Jundong1,2,GE Xiurun1,LIU Jibin2,HE Faliang2 |
| (1. School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiaotong University, Shanghai 200240, China; 2. China Southwest Research Institute Co. Ltd., Chengdu 611731, China) |
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Abstract The physical model of rock bolt testing with reflected wave was analyzed and solution to the wave equation with damping coefficient was given. Besides, two analog experiments for different concrete grade and different hardening time were conducted. The experiments indicate that the hardening time has a greater influence while concrete grade has a minor influence on rock bolt testing.
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Received: 12 November 2012
Published: 28 September 2013
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