Numerical Simulation of Rock Blasting Induced Free Field Vibration

As the free field geological condition is usually complex, the conventional wave attenuation law established for the homogeneous open field may not be applicable for actual field situations. Thus, to understand the impact of the attenuation law and the geological features on the blast wave propagati...

Full description

Saved in:
Bibliographic Details
Published in:Procedia engineering 2017, Vol.191, p.451-457
Main Authors: Gui, Y.L., Zhao, Z.Y., Zhou, H.Y., Goh, A.T.C., Jayasinghe, L.B.
Format: Article
Language:English
Subjects:
geological condition
numerical simulation
PPV
rock blasting
rock-soil interface
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:As the free field geological condition is usually complex, the conventional wave attenuation law established for the homogeneous open field may not be applicable for actual field situations. Thus, to understand the impact of the attenuation law and the geological features on the blast wave propagation, a field rock blasting test is conducted and the ground vibration is carefully monitored. To better understand the phenomenon, a numerical model considering the field geological features is established using the finite difference method. The field test results are then used to calibrate the numerical model. From the calibration, the parameters involved in the general form of peak particle velocity have been determined. It is demonstrated that the blast wave propagation in the free field is significantly governed by the field geological conditions, especially the interface between rock and soil layers.
ISSN:1877-7058
1877-7058
DOI:10.1016/j.proeng.2017.05.203