A novel optimization methodology for the disc cutter designs of tunnel boring machines (TBM) was presented. To fully understand the characteristics and performance of TBM cutters, a comprehen- To fully understand the characteristics and performance of TBM cutters, a comprehen-
During the realization of the Gotthard Base Tunnel project in Switzerland, each of the disc cutters on the cutterhead was pressed into the mountain with up to 27 t of contact pressure. The nature of the ground conditions determines the choice and positioning of the excavation tools for the cutterhead or the cutting wheel.
Tunnel Boring Machine (TBM) A ... All types of hard rock TBMs excavate rock using disc cutters mounted in the cutter head. The disc cutters create compressive stress fractures in the rock, causing it to chip away from the rock in front of the machine, called the tunnel face. The excavated rock, known as muck, is transferred through openings in the cutter …
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ABSTRACT: Rolling disc cutters are the business end of hard rock and mixed face tunnel boring machines (TBMs). Since their ﬁrst successful employment on a TBM over ﬁfty years ago, disc cutter technology has