JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Course Objective

To design the earth retaining structures used in construction of road/railways/pipe

lines/open excavations.

Course Outcome

Able to design conventional/Reinforced earth retaining walls, sheet pile walls,

bracing system for open excavations

UNIT - I

Earth Pressure Theories: Rankine’s and Coulomb’s Earth pressure theories for cohesive and cohesion less soils, stresses due to compaction and surcharge loads.

UNIT - II

Conventional Retaining Wall: Types of retaining walls, Stability (sliding, overturning, bearing capacity & overall) of gravity and cantilever walls, Proportioning of retaining walls, Effect of backfill material and drainage, Static and pseudo-static analyses.

UNIT - III

Flexible Walls: Sheet pile walls, Construction methods- Cantilever and Anchored sheet pile wall.

UNIT - IV

Reinforced Soil Walls/Mechanically Stabilized Earth: - Failure mechanisms- Pullout and rupture failures, Analysis methods, Limit equilibrium method- Internal and external stability, Static and seismic analyses.

UNIT - V

Braced Cuts: Lateral earth pressure in braced cuts, Design of various components, Stability of braced cuts, base heave and stability, yielding and settlement of ground surrounding excavation.

TEXT BOOKS:

• 1. Clayton, C.R.I., Woods, R.I., Bond, A.J., Milititsky, J. - Earth Pressure and Earth-retaining structures, CRC Press, Taylor and Francis group, 2013.
• 2. Budhu, M. – Foundations and Earth retaining structures, John Wiley & Sons, Inc., 2008.

REFERENCES:

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• 1. Bowles, J.E. – Foundation Analysis and Design, 5 Edition, BBS Publisher, 2009. nd
• 2. Donald P Coduto – Foundation Design Principles and Practices, 2 edition, Pearson, Indian edition, 2012. M. Tech – I Year – II Sem. (Geotechnical Engineering)