TY - CONF
T1 - A new rock mass failure criterion for biaxial loading conditions
AU - Kulatilake, P. H.S.W.
AU - Malama, B.
AU - Park, J.
N1 - Funding Information:
This research was funded by the U.S. National Science Foundation, Grant Number CMS-9800407. Authors would like to thank Dipl.-Ing. T. Mutschler from the Universitat Karlsruhe, Germany and Dr. F. H. Cornet from the Institut de Physique du Globe de Paris, France for providing the German and French translations, respectively for the English abstract.
Publisher Copyright:
© 2003 10th ISRM Congress. All rights reserved.
PY - 2003
Y1 - 2003
N2 - To simulate brittle rocks, a mixture of glastone, sand and water was used as a model material. Thin galvanized sheets were used to create joints in blocks made out of the model material. To investigate the failure modes and strength, both the intact material blocks as well as jointed model material blocks of size 35.6 ?17.8 ?2.5 cm having different joint geometry configurations were subjected to uniaxial and biaxial compressive loadings. Results obtained from the intact model material blocks are used to validate a new intact rock failure criterion for biaxial loading. Results obtained from both the intact and jointed model material blocks are used to develop a strongly non-linear new rock mass failure criterion for biaxial loading. In this failure criterion, the fracture tensor component is used to incorporate the directional effect of fracture geometry system on jointed block strength. The failure criterion shows the important role the intermediate principal stress plays on rock mass strength.
AB - To simulate brittle rocks, a mixture of glastone, sand and water was used as a model material. Thin galvanized sheets were used to create joints in blocks made out of the model material. To investigate the failure modes and strength, both the intact material blocks as well as jointed model material blocks of size 35.6 ?17.8 ?2.5 cm having different joint geometry configurations were subjected to uniaxial and biaxial compressive loadings. Results obtained from the intact model material blocks are used to validate a new intact rock failure criterion for biaxial loading. Results obtained from both the intact and jointed model material blocks are used to develop a strongly non-linear new rock mass failure criterion for biaxial loading. In this failure criterion, the fracture tensor component is used to incorporate the directional effect of fracture geometry system on jointed block strength. The failure criterion shows the important role the intermediate principal stress plays on rock mass strength.
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M3 - Paper
AN - SCOPUS:33646104882
SP - 669
EP - 675
T2 - 10th International Society for Rock Mechanics Congress, ISRM 2003
Y2 - 8 September 2003 through 12 September 2003
ER -