Abstract
Deformation modulus (Em) is one of the most important parameters needed for the evaluation of the rock mass behaviour under loading and unloading conditions. Many empirical correlations have been developed over the years to determine this parameter from various rock mass classification systems. Although the preliminary design of various components of a Hydro-electric power project is based on the empirically obtained parameters, which are found to deviate substantially in the field quite often. The field values of the rock mass deformation modulus can be determined by more direct tests like plate load test (PLT) and Plate Jacking test. In this paper, deformation modulus (Em) of the rock mass at the dam site is obtained using various empirical correlations relevant to the site conditions. An attempt has been made to develop an empirical correlation between deformation modulus and GSI at Pare H.E.P site consisting of weak rock mass. Additionally, some critical comments pertaining to the empirical correlation developed have been made in this paper.
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Singh, P.K., Goswami, D., Kalita, D. (2022). A Comparison of Rock Mass Deformation Modulus from Empirical Correlations Versus Plate Load Test at Pare Hydro-electric Power Project, Papum Pare, Arunachal Pradesh. In: Satyanarayana Reddy, C.N.V., Muthukkumaran, K., Satyam, N., Vaidya, R. (eds) Ground Characterization and Foundations. Lecture Notes in Civil Engineering, vol 167. Springer, Singapore. https://doi.org/10.1007/978-981-16-3383-6_34
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DOI: https://doi.org/10.1007/978-981-16-3383-6_34
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