Mechanical Analysis and Application of the Continuous Belt Conveyor for Shield Excavation in Mountainous City
In response to the problems of slow transportation speed of muck and the tendency of rail transporta-tion slippage in mountainous city with large longitudinal slopes,this paper conducted static analysis of the muck continuous belt conveyor using the finite element software,studied the distribution of stress,strain,and displacement,and summarized the on-site application of the continuous belt conveyor.The results showed that the stress,strain,and displacement at the ends and middles of the conveyor belt are relatively large,and stress concentration may occur at the connection between the bracket and the roller;the bracket can effectively pro-vide support for the belt conveyor,reduce the self-stress of the belt conveyor,and limit the displacement of the belt conveyor;the average daily tunnelling length and the maximum daily tunnelling length using the continu-ous belt conveyor for the muck removal are significantly higher than those using the truck,indicating a signifi-cant improvement in the efficiency of shield tunneling.
Continuous belt conveyorMountainous citiesLarge longitudinal slopeMuck transportation
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