Rock Fragmentation Characteristics by TBM Cutting and Efficiency under Bi-Lateral Confinement
Abstract
In this study, the mechanisms of rock breakage are assessed using tunnel boring machine (TBM) disc cutters under bi-axial pressure. Sequential indentation tests were conducted on granite specimens using a tri-axial testing platform. The morphology and volume of the fractured surface were measured and analyzed using a three-dimensional surface profilometer. An analysis of rock breaking growth and efficiency was performed as well. When the minor...
Paper Details
Title
Rock Fragmentation Characteristics by TBM Cutting and Efficiency under Bi-Lateral Confinement
Published Date
Mar 26, 2018
Journal
Volume
8
Issue
4
Pages
498 - 498
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