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:
The twin shear strength criterion has been proposed to consider the intermediate principalstress effect on the rock mass strength. The unified rock mass strength criterion could consider theintermediate principal stress effect on the rock mass strength. The unified rock mass elasto-plasticmaterial model is implemented in ABAQUS user interface. As a case for study, the stabilityanalysis of Dongjusi railway tunnel within hard rock mass is studied using the unified rock massstrength material. For comparison, the Hoek-Brown empirical strength criterion is also chosen forthe rock mass material modeling. The computation results show that the plastic zone calculatedusing the unified rock mass strength criterion is smaller than that using the Hoek-Brown empiricalstrength criterion. The railway tunnel lining structure is designed according to the unified rock massstrength criterion and greatly makes use of the rock mass potential strength, which decreasesengineering cost
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/55/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.353-358.2994.pdf
