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BCM 210 Foundation Issues- Fall 2000 refer to Allen Text

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Presentation on theme: "BCM 210 Foundation Issues- Fall 2000 refer to Allen Text"— Presentation transcript:

1 BCM 210 Foundation Issues- Fall 2000 refer to Allen Text

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

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

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

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6 Design Chain (foundation design activities)

7 Broad foundation types Shallow Deep

8 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

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10 Place on undistrubed soil Engineered fills No organic soils

11 Special footings and issues Step footings Underpinning Sloping sites

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

16 Thickness required Reinforcing

17 Control of movement, shrinkage, cracking Control joints Walls Slabs

18 Moisture control Damp proofing Waterproofing Waterstops

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

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

24 Pile proprietary Systems Performance Methods

25 Retaining Wall Systems

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29 Soils Soil Rock Components of soil Solids Voids Water Air

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

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33 Coarse Fines

34 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

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

36 Excavation issues Impact of soils

37 Bracing, shoring, slope support Benched foundation Shoring Design considerations

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

39 Lagging and soldier beams Slurry walls Cross lot bracing Soil mixing

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

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

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