Author(s): Peng Jin, Liquan Xie, Linzhu Zheng, Xin Liang, Yang Li

Linked Author(s): Peng Jin, Xin Liang, Yang Li

Keywords: Discrete element method; Layered rock; Cutter suction dredger; Cutting;

Abstract: Softening may occur in some parts of sandstone rock mass under long-term seawater’s scouring in rocky coastal ports. Reamer is often used to deal with hidden danger caused by the existence of soft rock layer. This paper presents numerical simulation of different rock cutting processes with reamer in the cases that the soft layer exists in different positions in rock mass, based on particle flow method of discrete element method in open source program YADE. The results are analyzed from the cutting output and power for different cases, which show that the reamer obtain same cutting power but need lower power with the increase of soft rock layer’s depth.

DOI: https://doi.org/10.3850/38WC092019-0333

Year: 2019