TRANSPORTATION METHOD OF DRILLING PRODUCT GENERATED BY EXCAVATION OF TUNNEL USING BLASTING METHOD

摘要

PROBLEM TO BE SOLVED: To improve the transportation work efficiency of drilling products when placing the drilling products, which are generated at the excavation of a tunnel using a blasting method, on a conveyor and conveying the drilling products in a state that the drilling products are crushed to preset sizes or smaller.;SOLUTION: A transportation method of drilling products has: a process for directly inputting muck Za generated by a blasting method into a primary crusher 2a when conveying the muck Za which is generated in excavating a pit face K of a tunnel T by a blasting method to the pit mouth, by using the primary crusher 2a and a secondary crusher 2b, which are sequentially arranged in a vertical row toward a pit mouth from the pit face K, and a telescopic belt conveyor 3; and a process for directly inputting the muck Za generated by the blasting method to the secondary crusher 2b in a state that muck Zb discharged from the primary crusher 2a is crushed by a muck crushing part 6b of the secondary crusher 2b.;SELECTED DRAWING: Figure 5;COPYRIGHT: (C)2018,JPO&INPIT