Science and Technology of Energetic Materials

Vol.63, No.5 (2002)

Research paper

Computer modeling of dynamic ground motion due to explosive blasting and review of some modeling problems
Chang-Ha Ryu


Numerical modeling is an approximate method. The validity of the algorithm used in the numerical method should carefully be investigated by providing whether the calculations performed by the method yield the results that are acceptable. A new technique was developed to predict the dynamic motion of ground induced by blasting, which utilized the finite element analysis, coupled with non - parametric source identification method. The results give the information on the frequency characteristics of ground motion as well as vibration levels. For the validity of the method, measured ground motion were compared with estimated ones. Good agreement was shown between measured ground motion and that calculated by the suggested method. Some problems involved in the numerical modeling were also identified.

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