Abstract
The construction result with recent large-diameter slurry shields shows that actual thrust and torque values are to a considerable extent lower than the installed capacity values.
This paper analyzes the actual performance data with large-diameter slurry shields between Komagome and Meguro of the Namboku Line constructed by the Teito Rapid Transit Authority and the measurement data during shield excavation of the Tanimachi section of the Line while providing the basic values necessary for thrust and torque of shield machines. This paper also proposes a method for estimating the installed thrust and torque of large-diameter slurry shields.
