Affiliation:
1. Saint-Petersburg Mining University
Abstract
The study of the effect of Elongated Cumulative Charges (ECC) on rock formations has an important scientific and practical significance for solving a number of process problems in mining practice. The use of charges with a longitudinal concavity for a directional destruction (presplit blasting, “smoothwall” chipping) involves reducing the explosives consumption, preserving the aquifer rock mass from additional explosion-caused cracks, obtaining a smooth contour and reducing the volume of drilling works. It is noted that one of the options that provides the explosion energy redistribution in a destructible medium is the use of elongated cumulative charges with a damping core. Experimental evidences on the dynamic loading of model blocks by an explosion of an elongated cumulative charge with an inert pad of various acoustic stiffness are reported.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science
Reference11 articles.
1. R.J. Eichelberger, E.M. Pugh, Experimental verification of jet formation by charges with lined conical activities, J. Appl. Phys. 23 (1985) 537–542.
2. G.T. Camacho, M. Ortiz, Adaptive lagrangian modelling of ballistic penetration of metallic targets Comput, Methods Appl. Mech. Eng. 142 (1997) 269–301.
3. G.P. Paramonov, A.V. Mysin, V.N. Kovalevskyi, Predicting the shotpile of blasted rock massat a granite deposit. Int. J. of Mechan. Engin. and Technol. 9(11) (2018) 1926–(1935).
4. G.P. Paramonov, V.N. Kovalevskiy, A.V. Mysin, Impact of multicharge detonation on explosion pulse value, IOP Conf. Ser. Earth and Environmental Sci., 194(8) (2018).
5. M.A. Meyers, Dynamic Behavior of Materials, Wiley, New York, (1994).
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献
1. Theoretical aspects of block stone blasting method;Gornye nauki i tekhnologii = Mining Science and Technology (Russia);2024-08-01