Economic Analysis of Continuous Belt Conveyor Auxiliary Driving for TBM Tunnel
The working principle and driving mode of drum transfer typed auxiliary driving and magnetic friction typed auxiliary driving for TBM tunnel continuous belt conveyor are introduced.And relying on the water conveyance tunnel of the Yellow River Diversion Project in central Shanxi,the economics are compared and analyzed from the equipment procurement cost,maintenance cost and comprehensive cost.The results show that:the magnetic friction typed auxiliary driving avoids the impact on the belt caused by the high-level unloading and transportation of slag,which helps to reduce the belt failure rate and the belt maintenance time and cost;the use of magnetic friction typed auxiliary driving has high investment in the initial stage of the project,but the comprehensive cost is relatively low.The magnetic friction typed auxiliary driving should be selected for the projects with abundant funds in the early stage.
TBM tunnelcontinuous belt conveyormuckingauxiliary drivingmagnetic friction typedrum transfer typeeconomic comparison
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