Volume 10, Issue 2 (Vol. 10, No. 2 Summer 2016 2016)
2016, 10(2): 3427-3444 |
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rezaiy H. Investigation of position marlston in rock mass enginnering classification system,case study: Doosti Dam. Journal of Engineering Geology 2016; 10 (2) :3427-3444
URL: http://jeg.khu.ac.ir/article-1-2325-en.html
URL: http://jeg.khu.ac.ir/article-1-2325-en.html
1- , rezaiy.hamed@gmail.com
Abstract: (7233 Views)
Marly rocks of Abtalkh formation were classified by Q, RMR, RSR and RQD rock mass classification systems using 222 meters logs from exploratory boreholes in Doosti dam site. The results show that the RMR is the most suitable method for classification of studied rock masses and has highest correlation coefficient with RQD. The validity of different Q-RMR equations was studied using error ratio (ER). Cameron et al. (1981) and Morno (1982) equations have lowest ER and highest validity for studied marlstones. Bieniawski (1989) and Cameron (1981) relationships are lower and higher limits of equations for marly rocks respectively.
Keywords: Engineering classification of rock masses, marlstones, geological engineering, Doosti dam, Abtalkh formation
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