Numerical study of the effect of confining pressure on the rock breakage efficiency and fragment size distribution of a TBM cutter using a coupled FEM-DEM method
Abstract
Confining pressure is an important factor that affects the rock breakage efficiency of Tunnel Boring Machines (TBMs). This study analyses the influence of the confining pressure on the rock breakage process, rock breakage efficiency and fragmentation distribution after crushing using a coupled FEM-DEM method. First, the parameters of the rock numerical model are calibrated using numerical uniaxial compression tests and Brazilian tests. Second,...
Paper Details
Title
Numerical study of the effect of confining pressure on the rock breakage efficiency and fragment size distribution of a TBM cutter using a coupled FEM-DEM method
Published Date
Jun 1, 2019
Volume
88
Pages
260 - 275
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