典型文献
Comparison of dominant frequency attenuation of blasting vibration for different charge structures
文献摘要：
Dominant frequency attenuation is a significant concern for frequency-based criteria of blasting vibration control.It is necessary to develop a concise and practical prediction equation describing dominant fre-quency attenuation.In this paper,a prediction equation of dominant frequency that accounts for primary parameters influencing the dominant frequency was proposed based on theoretical and dimensional analyses.Three blasting experiments were carried out in the Chiwan parking lot for collecting blasting vibration data used to conduct regression analysis of the proposed prediction equation.The fitting equations were further adopted to compare the reliability of three different types of dominant fre-quencies in the proposed equation and to explore the effects of different charge structures on the dominant frequency attenuation.The apparent frequency proved to be more reliable to express the attenuation law of the dominant frequency.The reliability and superiority of the proposed equation employing the apparent frequency were verified by comparison with the other five prediction equations.The smaller blasthole diameter or decoupling ratio leads to the higher initial value and corresponding faster attenuation of the dominant frequency.The blasthole diameter has a greater influence on the dominant frequency attenuation than the decoupling ratio does.Among the charge structures applied in the experiments,the charge structure with decoupling ratio of 1.5 and blasthole diameter of 48 mm results in the greatest initial value and corresponding fastest attenuation of the dominant frequency.
文献关键词：
中图分类号：
作者姓名：
Pengchang Sun;Wenbo Lu;Junru Zhou;Xincheng Huang;Ming Chen;Qi Li
作者机构：
State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University,Wuhan,430072,China;School of Resource and Environmental Engineering,Wuhan University of Science and Technology,Wuhan,430081,China;Changjiang Institute of Survey,Planning,Design and Research,Wuhan,430010,China
文献出处：
引用格式：
[1]Pengchang Sun;Wenbo Lu;Junru Zhou;Xincheng Huang;Ming Chen;Qi Li-.Comparison of dominant frequency attenuation of blasting vibration for different charge structures)[J].岩石力学与岩土工程学报（英文版）,2022(02):448-459
A类：
Chiwan,blasthole
B类：
Comparison,dominant,frequency,attenuation,blasting,vibration,different,charge,structures,Dominant,significant,concern,criteria,control,It,necessary,develop,concise,practical,prediction,describing,In,this,paper,that,accounts,primary,parameters,influencing,was,proposed,theoretical,dimensional,analyses,Three,experiments,were,carried,out,parking,lot,collecting,data,used,conduct,regression,analysis,fitting,equations,further,adopted,compare,reliability,three,types,quencies,explore,effects,apparent,proved,be,more,reliable,express,law,superiority,employing,verified,by,comparison,other,five,smaller,diameter,decoupling,leads,higher,initial,value,corresponding,faster,has,greater,influence,than,does,Among,applied,results,greatest,fastest
AB值：
0.445227
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