Thumbnail
Access Restriction
Subscribed

Author Innaurato, N. ♦ Oggeri, C. ♦ Oreste, P. ♦ Vinai, R.
Source SpringerLink
Content type Text
Publisher University of Science and Technology Beijing
File Format PDF
Copyright Year ©2011
Language English
Subject Domain (in DDC) Technology ♦ Engineering & allied operations
Subject Keyword tunnels ♦ boring machines ♦ rock mechanics ♦ stress analysis ♦ Materials Science ♦ Metallic Materials ♦ Characterization and Evaluation of Materials ♦ Ceramics, Glass, Composites, Natural Methods ♦ Surfaces and Interfaces, Thin Films ♦ Tribology, Corrosion and Coatings
Abstract To clarify some aspects of rock destruction with a disc acting on a high confined tunnel face, a series of tests were carried out to examine fracture mechanisms under an indenter that simulates the tunnel boring machine (TBM) tool action, in the presence of an adjacent groove, when a state of stress (lateral confinement) is imposed on a rock sample. These tests proved the importance of carefully establishing the optimal distance of grooves produced by discs acting on a confined surface, and the value (as a mere order of magnitude) of the increase of the thrust to produce the initiation of chip formation, as long as the confinement pressure becomes greater.
ISSN 16744799
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2011-05-29
Publisher Place Beijing
e-ISSN 1869103X
Journal International Journal of Minerals, Metallurgy, and Materials
Volume Number 18
Issue Number 3
Page Count 7
Starting Page 253
Ending Page 259


Open content in new tab

   Open content in new tab
Source: SpringerLink