岩石防护结构中充填物对应力波削减效应研究
首发时间:2009-07-13
摘要:本文主要探讨人工充填物对岩石防护结构中的应力波削减效应。首先,从理论上给出了单充填层后方透射波的强度解析公式。接着,对比分析了三种具有代表性的金属充填层(钢板、铜板和铝板)对岩石中应力波峰值的削减效果。最后,数值探讨了钢板的厚度、密度以及弹性模量等对应力波传播的影响。文中所得出的结论对智能防护工程的设计具有一定参考价值。
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Study on effect of embedded layer on stress-wave attenuation in rock defense structure
Abstract:This paper focuses on the effect of artificial inclusion (filled layer) on the attenuation of stress wave in rock defense structure. Firstly, the computing formula for the strength of transmission wave after single inclusion is theoretically given. Then, the effects of three representative metal inclusions on the peak attenuation of transmission waves are comparatively analyzed. Finally, the influences of basic parameters of the filled steel-plate such as mass density, thickness and elastic modulus on wave propagation are explored. The conclusions drawn can give a reference to the intelligent design of civil defense structure.
Keywords: Rock defense structure filled layer stress wave attenuation
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