STUDY AND APPLICATION ON THE CENTRAL BRIDGE TRANSPORT SYSTEM OF LARGE OPEN PIT MINES

摘要

In China, large open-pit mines mainly adopts single shovel-truck technology. It always uses both sides of end slope for in-pit waste dump. Under certain conditions, the central bridge transport system can effectively shorten the travel distance of a truck and reduce the transportation cost. We established an inequality to optimize the reasonable service level of middle bridge under the complex geological conditions dumping considering that transportation distance with middle bridge is less than without one. Analysis of the feasibility of the central bridge transport system, when the bottom of the pit begins to enter the area of the sharp decline, rise and fault in coal seam.