Abstract：
With the development of domestic highway, railway and urban rail transit projects, the super- large shield has been widely used in the underwater tunnelling, with the difficulty of reasonable selection and configuration of the cutting tools for the shield used in underwater tunnels. Based on the Weishan Road river-crossing project in Najing, the primary design concept of cutting tools for the shield machine is introduced, the mechanism of abnormal wear of cutting tools in upper-soft and lower-hard stratum with abundant quartz is analyzed, the life time of cutting tools is prolonged by optimizing the type of disc cutter and main cutting tools, and the times of cutter replacement by hyperbaric intervention are reduced, increasing the adaptability and durability of cutting tools.
.On Configuration and Optimization of Cutting Tools for the Supper-Large Shield Passing through the Upper-Soft and Lower-Hard Stratum[J] MODERN TUNNELLING TECHNOLOGY, 2018,V55(2): 180-188
2018, Vol. 55 