STUDY ON UTILIZING THE BINDING ENERGY TUBE BLASTING INCREMENT BLOCK ADVANCE ON CAVING WORKFACE

This article aims at the method which Caving workface utilizing the elemental error blasting crack advance, it causes the work time longer, affect the coal production time on working face, affect the output and difficultly full exerting the superiority function of the blasting increment block. Based on the mechanism of the binding energy tub using the directional control blast, proposing to use the binding energy tube carry on blasting crack in advance to the coal bed of working face for the first time and shaping the distributed crack, under the perturbation of coalcutter, enhancing the block rate of mining is adopted. It is indicated that the binding energy tube could enhance the block rate 5% compared to the original blast method, obtaining a better economic efficiency for the mine; simultaneously the technology is also applied into Caving workface and enriches the blast theory.