Using the jackhammer as rock digging method in Gabricar quarry, North Bioko, Equatorial Guinea
Blasting and drilling methods are mainly used in basalt rock quarries as blasting-digging methods.The purpose of this study is to argue the validity of using a jackhammer as a rock removal method in Gabricar quarry, based on knowing the LECITHIN geomechanical parameters of rocks as well as the technical-economic indicators for exploitation.Gravimet