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UNIVERSITY OF KERALA - College of Engineering, Trivandrum

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08.705.2. Elective-III EARTH DAM ENGINEERING<br />

L T P/D Cr<br />

3 1 0 4<br />

Module I<br />

Earth dam – types – selection – requirements <strong>of</strong> foundation – materials <strong>of</strong> construction - seepage through dams<br />

– determination <strong>of</strong> phreatic line – Casagrande’s solution – Kozheny’s parabola - entrance and exit corrections –<br />

flow nets for homogeneous earth dams .<br />

Module II<br />

Stability analysis – method <strong>of</strong> slices - pore pressure during construction, steady seepage and sudden drawdown<br />

– approximate analysis for the above conditions using Taylor’s stability charts<br />

Embankment construction – compaction control – placement water content<br />

Module III<br />

Failure <strong>of</strong> earth dams – types <strong>of</strong> failure and damages – embankment compressibility and swelling – settlement <strong>of</strong><br />

foundations – movement <strong>of</strong> crest –Adverse effects <strong>of</strong> seepage – liquefaction and its prevention -<br />

instrumentation in earth dams -<br />

Control <strong>of</strong> seepage – cut <strong>of</strong>f trenches – grout curtains – sheet pile walls – upstream blankets – relief wells<br />

References:<br />

1. Sherard, Woodward, Gizienzki and Clevenger --- Earth and Earth-Rock dams, John Wiley & Sons, New<br />

York, 1963<br />

2. Bharat Singh & Punmia --- Earth and Rockfill dams - Standard Publishers Distributors, New Delhi, 1988<br />

Question Paper: Duration:3 hours<br />

The question paper consists <strong>of</strong> Part A and Part B.<br />

Part A carries 40 marks. There will be 8 compulsory short answer questions covering entire syllabus.<br />

Part B is for 60 marks. There will be 2 questions from each module. The candidate has to answer one question<br />

<strong>of</strong> 20 marks from each module.<br />

77

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