Unformatted text preview: o must contain and dispose of spoils and waste slurry o requires special equipment o actual shaft dimensions may be quite variable • Factor of Safety: (minimums) o Iypically use partial safely faclors: P a = Os + 0 1 • W where FS s = 2.0, FS. = 3.0 FS s FS I o also check overall ("global") faclor of safely Available Design Information Global Faclor of Safety, FS Sile Invesligation Axial Compression Sialic Tesl Soil Condifions Load Program Yes Uniform Extensive 2.0 Yes Erratic Average 2.5 No Uniform Extensive 2.5 No Uniform Average 3.0 No Erratic Extensive 3.0 No Erratic Average 3.5...
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- Fall '08
- Erratic Uniform Uniform, Erratic Sile Invesligation, FS Axial Compression, actual shaft dimensions