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Numerical Simulation of Sonic Reflection Method Applied to Rock Bolts\' Anchoring Quality Detection
Author(s): 
Pages: 47-51
Year: Issue:  12
Journal: Journal of Yangtze River Scientific Research Institute

Abstract: 为了研究锚杆声波反射法质量检测中的声波传播规律,建立了三维锚固系统模型,利用动力有限元分析了不同锚固状态下锚固系统的动力响应.围岩质量较好、砂浆密实时锚杆的加速度响应波形规则且衰减较快,砂浆密实度较差及存在局部缺陷时锚杆响应波形不规则,不同介质交界面处产生畸变.
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