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A Research on Predicting Structural Responses to Blastin g Vibration

LIU Jun1,WU Cong-shi2,GAO Qua n-chen1 (1.China University of Mining Techn ology,Beijing 100083,China; 2.Changsha Institute of Mining and Metallurgy,Changsha Hunan 410012,China) .  
A method that can be used to predi ct structural responses to blasting vibration was introduced in this paper.The s tructural response spectrum was computed using the seismogram of structural foun dation that has been predicted in advance.Then,the structural responses can be d erived by employing dynamic analysis method,and the optimum delay time can also be determined by comparing the predicting results under different delays.The mod el has been used in a practical blast,the predicting results are reliable.The mo del in this paper can be applied to evaluate the security of stuctures before bl ast.
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