(6) Soil gradation requirements Percent passing Particle size (mm) 125mm 90mm 75mm 37 5 37.5 10mm 5mm 600 microns 63 microns.

Vertical stress – Meyerhoff y pressure p.Checks for overturning and eccentricity and eccentricity.Lumped Lumped Factor of Safety Factor of Safety.Vertical stress – simple p static pressure.No check for overturning and overturning and eccentricity.(5) Major differences between BS 8006 and d FHWA BS 8006 BS 8006. Seismic design Reinforced Soil Walls - 3.Covers metallic and polymeric reinforcement materials, but not anchored earth.Seismic Loads are not considered FHWA NHI-00-0043.Reinforced walls, slopes and Anchored Earth are discussed elaborately.Covers both polymeric and metallic reinforcements.BS 8006 Strengthened/Reinforced Soils and Other Fills, British Code of Practice (1995 & 2006) FHWA Mechanically Stabilised Earth Walls and Reinforced Soil Slopes: Design and Construction Guidelines, FHWANHI 0043 (2001) NHI-0043 Segmental Retaining Walls, National Concrete Masonry Association, Herndon, Virginia, USA(2009) Seismic Analysis and Design of Retaining Walls, Buried Structures, Slopes, and Embankments, NCHRP National Cooperative Highway Research Project, Project Transportation Research Boads, Washington, DC USA (2008). (3) Codes and Design Standards for the Reinforced Soil Retaining Walls Soil Retaining Walls Stability Analysis of Reinforced Soil R t i i Walls Retaining W ll.Fundamentals of earth pressure theories.Different Standards for Reinforced Soil Retaining walls.Rajagopal Department of Civil Engineering IIT Madras, Chennai e-mail: (2) Outline of the Lecture (1)Geosynthetics y and Reinforced Soil Structures Reinforced Soil Walls … continued Prof K K.

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