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59_CEG 4012 Notes Fall 2011 CEG 4012 Notes Fall 2011

59_CEG 4012 Notes Fall 2011 CEG 4012 Notes Fall 2011 - pas...

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pas? a Reduction of Settlement: (It will move how much?) Increase stiffness: expensive, risky Increase flexibility: lighter members, simple connections Lighten structural loading Construction joints / closure pours: eliminates differential Install means of adjusting structure: screw jacks & shims, requires active monitoring Deal with problem later, design structure for easy repair Spread load: larger or more footings Mat foundation: bridges poor soils, settlement uniform Compensate for foundation load with excavation: often use a mat Geofabrics: more uniform settlement Deep foundation: piles, shafts Surcharge to preconsolidate soil, sand drains to speed ~, ... , ... ~,I~I-I).. Compaction, penetration or chemic.aLgmu.t..o( jn sands 2. Grout unrelia61e in silts/clays/mixes (some uncertaint
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