METHOD FOR DIGGING ROCK STEPS

摘要

FIELD: mining. SUBSTANCE: method provides drilling a network of explosive wells with increased spacing (as compared to usual option) between wells. In so doing filling in wells are drilled in the center of rectangles formed as lines connected each pair of adjacent explosive wells in adjoining lines of different direction. Filling-in wells are filled with solution and after holding them up the solution or water are filled additionally. Then charges are fired and digging and loading works begins. EFFECT: high efficiency. 1 dwg