Methodology of koyna dam
Answers
Explanation:
This dam impounds the tail race water from Stage 1 and 2. This water is drawn through penstocks and electricity is generated by four Francis turbine units with a capacity of 80 MW each. The tail race water from these stages then flows through a channel and joins the Arabian Sea near Chiplun
Answer:
ArticlePDF Available
Methodology for estimating probability of dynamical system's failure for concrete gravity dam
February 2014
Journal of Central South University 21(2):775-789
DOI: 10.1007/s11771-014-2001-9
Project: National Natural Science Foundation of China (No.51509182)
Authors:

Chao Wang
Tianjin University

Zhang She-rong

Bo Sun
PowerChina Chengdu Engineering Corporation Limited

Gaohui Wang
Wuhan University
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Citations (6)
References (39)
Figures (12)
Abstract and Figures
Methodology for the reliability analysis of hydraulic gravity dam is the key technology in current hydropower construction. Reliability analysis for the dynamical dam safety should be divided into two phases: failure mode identification and the calculation of the failure probability. Both of them are studied based on the mathematical statistics and structure reliability theory considering two kinds of uncertainty characters (earthquake variability and material randomness). Firstly, failure mode identification method is established based on the dynamical limit state system and verified through example of Koyna Dam so that the statistical law of progressive failure process in dam body are revealed; Secondly, for the calculation of the failure probability, mathematical model and formula are established according to the characteristics of gravity dam, which include three levels, that is element failure, path failure and system failure. A case study is presented to show the practical application of