Li, An-Jui, Lo, Vun H. and Cassidy, Mark J. 2015, Back analyses for slope failures in rock, in ARC 2015 : New Innovations and Sustainability : Proceedings of the Asian Regional Soil Mechanics and Geotechnical Engineering 2015 Conference, Japanese Geotechnical Society, Tokyo, Japan, pp. 967-970, doi: 10.3208/jgssp.OTH-01.
Some of the geotechnical parameters used in the analysis may not be accurately measured directly from laboratory tests due to effects of sample disturbance and errors of tests. The back analysis or the observational method are thus often applied to determine the representative and/or dominant strength parameters based on field observations in practice. Based on the Hoek-Brown failure criterion, it was known that the disturbance factor (D) should be determined with caution. The difficulty of measuring rock mass disturbance accurately has been shown. Three rock slope failures will be investigated in this paper using back-analysis technique. In addition, various rock mass strength parameters are taken into consideration.
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