Shuchen Li

Failure wear mechanism and blade width effect of TBM center cutter rotation in water-bearing weakly cemented sandstone

Weakly cemented sandstone (WCS) in western China is rich in clay minerals. Water‑induced softening tends to induce rotation failure of TBM central hobs, which further causes eccentric tip damage and edge chipping and remarkably reduces tunnelling efficiency. Aiming at the poorly...