The manner null which creates accommodation space in mountain zone

摘要

PURPOSE:To economically perform a large-scale construction work by arranging a self-propelling conveyor with a regenerative braking device in a horizontal shaft and a vertical shaft provided between a mountain skirt section and a mountain top, and moving the conveyor by the tare weight of excavated sediment. CONSTITUTION:A horizontal shaft 1 is drilled from a mountain skirt section in a mountain zone to be excavated into the flat ground, and a vertical shaft 2 is provided successively with it and opened to the mountain top. A bucket elevator type self-propelling conveyor 10 having a regenerative braking device 12 is arranged between the mountain top and the mountain skirt section via the vertical shaft 2 and the horizontal shaft 1. The mountain is excavated in sequence from the mountain top, excavated sediment is dropped in the vertical shaft 2, the self-propelling conveyor 10 is moved by the tare weight of sediment, and sediment is moved to the outlet of the horizontal shaft 1 at the mountain skirt section. The self-propelling conveyor 10 is gradually lowered by the regenerative braking device 12, and the electric power generated by regenerative braking is utilized for various accessory facilities.