Foundaton Notes- Key terms

Foundaton Notes- Key terms - Pile Cap Retaining Walls...

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Key Terms: Foundation Loads include: Dead, Live, Wind, Horizontal, Thrust, Buoyant, Earthquake. General Foundation Requirements: 1. Safe from Structural Failure 2. Foundation Settlement - differential, uniform, tipping 3. Not to affect adversely surrounding properties. Cathedral of Mexico City, 1572-1813, multiple architects Leaning Tower of Pisa, architect unknown, 1173-1373 Heaving - Sources include frost, adfreezing, expansive soils, high water table. (heaving is less likely in bedrock and gravel or course sand.) Types of Soil: rock, boulder, cobble, gravel, sand, silt, clay, peat, topsoil. strata Bearing Strength Borings Open Excavation Sheeting Excavation (braced) Slurry Wall Tremie Bentonite Clamshell Digger Whaler Building Consists of 3 parts Superstructure Substructure Foundations Shallow Foundation Spread Footings Wall footings Piers Slab on Grade (floating, supported, monolithic) Step Footings Raft Foundations Mat Foundations Deep Foundation Caisons (Bell and Socketed) Piles (Timber, Steel, Sitecast, Precast)(Friction, Bearing)
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Unformatted text preview: Pile Cap Retaining Walls Design Factors include: :height, surrounding Soils, Surrounding Water, Surrounding Structures. Design Failures include: cracking, overturning, lateral sliding, undermining. T-Type Gravity L-Type Control Joint Expansion Joint Waterproofing Damproofing Drain Pipes Backfill Drainage Tile Tremie An excavation is created and held open with a slurry (clay/water mix). A "tremie" pipe (open pipe) is lowered to the bottom of the excavation. Concrete is placed into the pipe and allowed to drop through the pipe to the bottom of the excavation. The concrete begins to form a pile at the bottom, displacing the slurry out of the excavation. The pipe (tremie pipe) is raised slowly allowing the excavation to be filled with concrete. This process is used for the slurry wall panels, for secant piles, and for the bottom slab ("plug") at each shaft. The bottom slab is a "plug" designed to prevent water from entering into the shaft from the bottom....
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This note was uploaded on 04/24/2008 for the course ARCH 3007 taught by Professor Ursula during the Spring '08 term at LSU.

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Foundaton Notes- Key terms - Pile Cap Retaining Walls...

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