Comparison of vibrations induced by excavation of deep-buried cavern and open pit with method of bench blasting

作     者：卢文波 李鹏 陈明 周创兵 舒大强 

作者机构：State Key Laboratory of Water Resources and Hydropower EngineeringWuhan University Key Laboratory of Rock Mechanics in Hydraulic Structural EngineeringMinistry of EducationWuhan University 

出 版 物：《Journal of Central South University》 (中南大学学报（英文版）)

年 卷 期：2011年第18卷第5期

页      面：1709-1718页

核心收录：

学科分类：081406[工学-桥梁与隧道工程] 08[工学] 0814[工学-土木工程] 082301[工学-道路与铁道工程] 0823[工学-交通运输工程] 

基　　金：Project(2010CB732003) supported by the National Basic Research Program of China Projects(50725931,50779050 and 50909077) supported by the National Natural Science Foundation of China 

主　　题：deep-buried cavem open pit blasting vibration power spectra time-energy density in-situ stress 

摘      要：The measured data of vibrations induced by excavation of deep-buried cavern and open pit with method of bench blasting were analyzed by Fourier Transform and Wavelet Transform,and the characteristics of vibrations induced under these two circumstances were *** is concluded that with the similar rock condition and drilling-blasting parameters,vibration induced by bench blasting in deep-buried cavern has a higher main frequency and more scattered energy distribution than that in open *** vibration induced by bench blasting in open pit is mainly originated from the blast load,while the vibration induced by bench blasting in deep-buried cavern is the superposition of vibrations induced by blast load and transient release of in-situ *** vibration induced by transient release of in-situ stress increases with the stress level.