Mullaperiyar dam was constructed and completed in 1895 across the river
Periyar in the then Travancore State to meet the requirements of
irrigation in Madras Presidency. The Periyar dam is the first composite
gravity dam of its kind in the country and also perhaps one of the
earliest projects of inter-basin water transfer. Due to occurrence of
some recent earthquake in the area, concern about the safety of this
114 years old composite gravity dam was raised. As a result, the
seismic safety analysis of Mullaperiyar dam foundation system was
referred to the Department of Earthquake Engineering, lIT Roorkee by
the Chief Engineer, I & A and ISW, Government of Kerala vide
No. GO (RT) No. 1087/2007 /WRD dated August 08, 2008.
structural stability of Mullaperiyar dam has been carried out in two
parts. Part-I deals with deals with the seismic hazard assessment
whereas, Part-II deals with the seismic stability analysis. This study
deals with Part-II i.e., the 2D Plain Stress Linear Dynamic Finite
Element Model (FEM) Analyses of Main dam as well as Baby dam. In this
connection various reports on the study on Mullaperiyar dam conducted
by Government of Tamil Nadu, Central Water Commission (CWC) and
Government of Kerala were provided.
The useful suggestions
provided by Er. M.K. Parameswaran Nair, Chairman, Mullaperiyar Special
Cell, Dr. Arun Bapat, Chairman, Expert Committee, Er. P. Lathika, Chief
Engineer, I&A and ISW, Er. N. Sasi, Chief Engineer,
ISW, Er. M. Sasidharan, Chief Engineer (Rtd.), KSEB, and Er. James
Wilson, Assistant Executive Engineer, KSEB are greatly acknowledged.
investigations have been carried out by Dr. D. K. Paul Professor and
Dr. Pankaj Agarwal, Associate Professor in the Department of Earthquake
Engineering, IIT Roorkee. Mr. Brijesh Singh, M. Tech student and Mr.
Rajib Sarkar, PhD. Scholar, Department of Earthquake Engineering
provided help in conducting the finite element analysis of the Main dam
as well as Baby dam in addition to preparation of the technical report.
D.K. Paul, Professor
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