ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Based on the structure of the rock mass surrounding a highway tunnel under construction,a new methodology for defining the strength of jointed rock mass is proposed. The laboratoryexperiments and numerical simulations of rock samples, including both intact rock and rock with asingle typical joint, are carried out to ensure that the mechanical parameters of the rock and the jointcan be obtained. In addition, the strength of the rock mass surrounding the tunnel, without resortingto the difficult task of sampling and testing of large-scale rock mass, is evaluated by using theproposed method. It is shown that the strength reduction of rock mass is governed by the geometricconfigurations as well as the mechanical properties of the joints, and that the presence of jointsresults in the non-linearity of the pre-peak region
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/55/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.353-358.381.pdf
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