Estimation of Energy Input of Main Crack Initiation in Separating Stone Blocks from Rock Mass by Shock Action on Plastic Material in Drillhole
P. N. TAMBOVTSEV1,2
1Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Krasnyi pr. 54, Novosibirsk, 630091 Russia
2Novosibirsk State University of Architecture and Construction, ul. Leningradskaya 113, Novosibirsk, 630008 Russia
Keywords: массив, строчка шпуров, пластичное вещество, инструмент, удар, трещина, отделение блока, rock mass, line of drillholes, plastic substance, tool, shock, crack, separation
Abstract
Based on the experimental data on separation of stone blocks from rock mass, the author has developed an approximate analytical model to find energy input required to initiate main crack depending on mechanical properties of rocks, geometry of bench, diameter of drillholes and meterage drilled.
|
