Simulation of Charge Structure Effect to Integrated Rock Blasting

Abstract:

Different charge structure has an important influence on explosive energy efficiency and rock blasting effect. On the basis of Misses strength theory, using ANSYS/LS-DYNA to simulate the integrated rock blasting effects under different charge structure conditions, including continuous coupling charge, continuous decoupling charge and interval charge. And the effective stress-time curves of typical elements are compared to analysis. The results show that air as a decoupling medium plays a good buffer function, which is an ideal charge form. And interval charge has a better effect to buffer the pore wall peak pressure, thus reducing the destruction around the blast holes.

• Periodical: Applied Mechanics and Materials (Volumes 94-96)
• Pages: 2088-2091
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.94-96.2088
• Online since: September 2011
• Authors: Neng Juan Zhou, Lei Nie, Shi Wei Shen, Li Na Xu
• Keywords: Charge Structure, Misses Strength Theory, Numerical Simulation, Rock Blasting

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