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Application of Air Foam Stabilized Soil for Bridge-Embankment Transition Zone in Thailand
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2009
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EngineeringStructural EngineeringSoil MechanicGeotechnical EngineeringGeotechnical ProblemGeoenvironmental EngineeringEmbankment DamFoundation EngineeringGeographyLarge SettlementEngineering GeologySediment TransportBridge-embankment Transition ZoneGeotechnical PropertyCivil EngineeringSoil StructureGeomechanicsDifferential SettlementLightweight MaterialConstruction Engineering
Large settlement is a problem of most highway bridge approaches constructed in the lower Choa Phraya river basin of the Kingdom of Thailand. The presence of thick and highly compressible soft clay layer in these areas usually results in differential settlement between bridge superstructures and highway embankments. Moreover, it also affects driving comfort of the traveling public. There are many alternatives that can be used to prevent the vertical movement, and use of lightweight material is one of the alternatives. Recently, Thailand's department of highways (DOH) has initiated a project for use of light weight soil to reduce settlement under bridge approaches. The test section was located on highway number 35, at the kilometer post of 72+712.5 to 72+775.0. Geotechnical instrumentation was also installed at the tested site for material behavior study.