Abstract
Concern with prediction of blast sound propagation, a new method has been developed based on a solution of sound wave theory and spectral analysis such as the Fourier transformation. This method calculates the wave form change during propagation directly based on following procedure; Firstly, the original source sound pressure-time curve is converted to the frequency components by the Fourier transformation and the propagation loss during propagation of each frequency component is calculated by using an acoustic theory and then the sound pressure-time curve is derived by the inverse Fourier transformation of the propagated frequency components which are given by the subtraction of the propagation loss from the original spectrum of each frequency component. Based on the new calculation method, control methods of frequency component and sound level of blast sound due to delay blasting have been also discussed.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
