Optimization Analysis of Excavation Cost for Drilling Rig in Xiaowangou Iron Mine
In order to solve the problem of slow tunneling speed of hard rock roadway in metal mines,and in response to the call of"mechanized replacement and automation reduction",more and more mines use drilling rigs to replace manual hand-held air drills to improve perforation efficiency,thereby improving the blasting tunneling speed,but whether the economic cost in the specific implementation process is rea-sonable is unknown.Taking Xiaowangou Iron Mine as an example,the costs of manual drilling and truck drilling are analyzed,and the relationship between tunnel penetration and excavation cost is analyzed by us-ing optimization theory.It is found that the drilling rig saves 914.87 yuan per meter compared with manual drilling.When the footage is lower than 3 269 m,the cost of manual drilling is lower.When the drill depth is higher than 3 269 m,it is recommended to use truck drilling.
NETL
NSTL
万方数据
维普
