...) with transducer of stress wave in ranges of frequency 80 kHz. Two reconstruction algorithms have been used, namely, the tomographic ART algebraic reconstruction technique and the SIRT simultaneous iterative reconstructive technique, in order to represent a contour map of ultrasonic velocity distribution within...

... nondestructive detection artificial neural network wavelet packet crunode equation intelligent diagnosis technology anchorage system flaw spectrum reconstruction Rock Dynamics: From Research to Engineering Li et al. (Eds) © 2016 Taylor & Francis Group, London, ISBN 978-1-138-02953-8 517...

..., the safety and stability of existing tunnel reconstruction is one of the leading research topics in geotechnical engineering. rock fragmentation numerical simulation numerical calculation method vibration reservoir simulation expansion tunnel collapse cavity reconstruction deformation...