Data on performance and variation index for shield tunnelling through soft deposit
The data pertain to field records of EPB shield machine in Metro Line No.5 in Tianjin, China. Field performance of shield machine (cutterhead, screw machine, and shield advancing) are shown in the file. Specifically, the database consists of the main parameters for shield tunnelling including cutterhead rotation speed, cutterhead torque, screw machine rotation speed, screw machine torque, shield thrust, and shield advance rate. In addition, the calculation process of energy consumption and variation index during the tunnelling are displayed. The value of the dataset is the consideration of silt or clay soil encountered in the shield tunnelling area including the proportion of soils, grain gradation, and effects on performance and energy consumption of different parts in shield machine.