Features of Pendulum Waves under Deep-Seated Charge Blasting in Blocky Rock Mass
N. I. ALEKSANDROVA
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Krasnyi pr. 54, Novosibirsk, 630091 Russia
Keywords: заглубленная полость, блочная среда, полупространство, волновое движение, волна Рэлея, численное моделирование, deep-seated cavity, blocky medium, half-space, advancing wave, Raleigh wave, numerical modeling
Subsection: ROCK FAILURE
Abstract
The object of the numerical study is the travel of pendulum waves in a blocky medium under nonstationary impact of deep-seated charge blasting on the surface of the expansion chamber. The blocky model is simulated by a two-dimensional lattice of masses connected by elastic springs along the axes and diagonals. The displacements and velocities of the masses at different half-space points are calculated using the finite-difference method.
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