Course

Unit 1

Geosynthetics classifications- functions- applications- raw materials used. Different types of Geosynthetics- manufacturing, system- Design and sustainability. Various properties of Geosynthetics, physical properties, mechanical properties, hydraulic properties & endurance properties- Mechanism of filtration and drainage functions & their applications. Background of reinforced earth, mechanism and concepts- Basis of reinforced earth wall design-

Unit 2

Geogrid reinforced soil walls, geocell wall, gabion wall. Model for single and multi-layer reinforced slopes, guidelines for design of reinforced slopes, software for reinforced soil slopes. Design of basal reinforced embankment, placement of Geosynthetics, construction procedure, widening of existing road embankments.

Unit 3

Consolidation techniques, Development of design chart for prefabricated vertical drains, ground instrumentation and monitoring, Design of encased stone columns, geocell/geofoam systems. Bearing capacity of Geosynthetics reinforced soil system, geocell reinforced sand overlaying soft clay- Applications, advantage, function of geofoam, physical, mechanical and thermal properties of geofoam, design of embankment using geofoam, geofoam reinforced soil walls.

Prerequisite(s): 23CIE211 Geology and Soil Mechanics

Course Objective

• To acquire knowledge about the types and functions of various geosynthetics and their manufacturing
• To understand the design principles of reinforced soil

Course Outcome

CO1: Testing and valuation of various properties of geosynthetics used in soil structures CO2: Principle of soil reinforcement and design of reinforced soil retaining structures CO3: Design of drains for consolidation

CO-PO Mapping

Text book(s)

Shukla, S.K. and Yin, J.-H. (2006). Fundamentals of Geosynthetic Engineering. Taylor and Francis, London, UK.

Koerner, R. M.(2012). Designing with Geosynthetics, 6th Edition,Vol. 1 and 2,Xlibris corp., 914 p.

Giroud, J.P.(1984).”Geotextiles and Geomembranes. Definitions, Properties and Design,” Selected Papers, Revisions and Comments, 4th ed., IFAIPublishers, 325 p.

Reference(s)

Holtz, R. D., Christopher,B. R. and Berg, R. R.(1997) Geosynthetic engineering,Bitech publishers Ltd., 452p.

Hausmann, M. R.(1990).Engineering Principles of Ground Modification, McGraw-Hill Publishing Company, New York, 632 p. Ingold, T.S.(1982). Reinforced Earth, Thomas Telford Ltd., London, 141 p.

Shukla, S.K. (2002). Geosynthetics and Their Applications. Thomas Telford Publishing, London, UK.

*CA – Can be Quizzes, Assignment, Projects and Reports