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Lateral Earth Pressures N. Sivakugan Contents Geotechnical applications K0, active passive states Rankine’s earth pressure theory Lateral Support Lateral Support Soil Nailing Sheet Pile Sheet Pile Sheet Pile Lateral Support Lateral Support Earth Pressure at Rest Estimating K0 Active/Passive Earth Pressures Active Earth Pressure Active Earth Pressure Active Earth Pressure Active Earth Pressure Active Earth Pressure Active Earth Pressure Passive Earth Pressure Passive Earth Pressure Passive Earth Pressure Passive Earth Pressure Passive Earth Pressure Passive Earth Pressure Earth Pressure Distribution Rankine’s Earth Pressure Theory Retaining Walls - Applications Retaining Walls - Applications Retaining Walls - Applications Gravity Retaining Walls Cantilever Retaining Walls Design of Retaining Wall Points to Ponder basement wall High-rise building cobbles cement mortar plain concrete or stone masonry They rely on their self weight to support the backfill They act like vertical cantilever, fixed to the ground Reinforced; smaller section than gravity walls 1 1 2 2 3 3 toe toe Wi = weight of block i xi = horizontal distance of centroid of block i from toe Block no. - in granular soils Analyse the stability of this rigid body with vertical walls (?Rankine theory valid) 1 1 2 2 3 3 PA PA PP PP S S toe toe R R y y Safety against sliding along the base H h soil-concrete friction angle ? 0.5 – 0.7 ? to be greater than 1.5 PP= 0.5 KP?h2 PA= 0.5 KA?H2 SIVA Copyright?2001 Duration: 18 min Design of retaining walls A Mini Quiz A 2-minute break / 起重机 立体停车设备 电动葫芦 / 衬塑复合管 涂塑复合管 钢塑复合管 消防涂覆钢 In geotechnical engineering, it is often necessary to prevent lateral soil movements. Cantilever retaining wall Braced excavation Anchored sheet pile Tie rod Sheet pile Anchor We have to estimate the lateral soil pressures acting on these structures, to be able to design them. Gravity Retaining wall Soil nailing Reinforced earth wall Sheet piles marked for driving Sheet pile wall During i
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