BCM 210 Foundation Issues- Fall 2000 refer to Allen Text

Elements of foundations. Footings. Deep systems such as piles Elements of foundations Footings Deep systems such as piles and caissons Foundations Walls

Functional Aspects of foundation systems. Transfer Loads. Dead loads Functional Aspects of foundation systems Transfer Loads Dead loads Live Loads

Impact of soils on foundations selection, size, structural design, methods, and performance Bearing Settlement Elastic Consolidation Horizontal forces Frost Heave

Design Chain (foundation design activities)

Broad foundation types Shallow Deep

Shallow Foundation Types. Strip footings. Pad or column footings Shallow Foundation Types Strip footings Pad or column footings Trench footings Slab on grade with thickened edge Interior footings for bearing walls Thickened slabs

Place on undistrubed soil Engineered fills No organic soils

Special footings and issues Step footings Underpinning Sloping sites

Foundation walls. Concrete unreinforced. Concrete reinforced Foundation walls Concrete unreinforced Concrete reinforced Concrete block

Thickness required Reinforcing

Control of movement, shrinkage, cracking Control joints Walls Slabs

Moisture control Damp proofing Waterproofing Waterstops

Deep Foundation Systems. Drilled systems. Caissons. Belled caissons Deep Foundation Systems Drilled systems Caissons Belled caissons Socketed caissons Auger cast piles

Driven systems. Timber piles. Steel H piles. Precast concrete Driven systems Timber piles Steel H piles Precast concrete End bearing Friction piles

Pile proprietary Systems Performance Methods

Retaining Wall Systems

Soils Soil Rock Components of soil Solids Voids Water Air

Soil Classifications Unified Soil Classification System(USCS) Boulders Cobbles G S M C O or pt

Coarse Fines

Classification Process (USCS). Soil sampling and testing. methods Classification Process (USCS) Soil sampling and testing methods Flow of process Sieve analysis Atterberg Limits for fines Lab testing and reporting

Soils reporting Uses. Foundation design. Planning for construction Soils reporting Uses Foundation design Planning for construction activities

Excavation issues Impact of soils

Bracing, shoring, slope support Benched foundation Shoring Design considerations

Sheet Shoring Components. Shoring. Removable. Permanent. Whalers Sheet Shoring Components Shoring Removable Permanent Whalers Rakers Tie Backs

Lagging and soldier beams Slurry walls Cross lot bracing Soil mixing

Water in soils and dewatering measures. Impacts of water Water in soils and dewatering measures Impacts of water Dewatering methods

Compaction. Proctor testing and densities. Modified Proctor Compaction Proctor testing and densities Modified Proctor Specified densities Equipment