Schügerl R., 2009: Dynamic characteristics of rocks and method of their determination. Acta Geologica Slovaca, 1, 1, 15–26. (in Slovak with English summary)
Dynamické charakteristiky hornín a spôsoby ich zisťovania
Dynamic characteristics of rocks and method of their determination
Radoslav Schügerl
Katedra inžinierskej geológie, Prírodovedecká fakulta, Univerzita Komenského v Bratislave, Mlynská dolina G, 842 15 Bratislava; schugerl@fns.uniba.sk
Abstract
This paper presents selected problems of the research of the influence of technical vibrations on rocks. The vibrations are the products of the technological procedure, such as mining blasting, ramming of the piles, using of the drilling-equipment or vibration machines. The vibrations could be also evocated by road or train traffic. The most important dynamic characteristics of rocks are dynamic modulus of elasticity Edyn; dynamic modulus of deformation Edef, dyn; dynamic shear-modulus Gdyn; and especially dynamic Poisson´s ratio νdyn. These parameters were obtained by laboratory testing of conglomerate samples.
Key words: amplitude, dynamic Poisson's ratio, dynamic deformation modulus, dynamic elastic modulus, frequency, hydraulic jack
Manuscript received: 2009-06-12
Revised version accepted: 2009-07-29
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