Thursday, November 21, 2019

Geotechnical engineering coursework on foundation design Assignment

Geotechnical engineering coursework on foundation design - Assignment Example Use the borehole information to deduce an average SPT (standard penetration test) blow count for the bearing stratum. Then estimate the angle of shearing resistance ï  ¦Ã¯â€š ¢ using the chart by Peck et. al. (1967) in your lecture notes. Adopt the result as the characteristic value ï  ¦Ã¯â€š ¢ K in your design. Also make the following assumptions: This was calculated by using   Ã‚  v  = v0  +  aΔt   , from the Physics Hypertextbook (2011, pgh. 5). We were able to calculate the time using this equation, and we were also then able to find the resistance of ï  ¦Ã¯â€š ¢ (phi’s derivative), or 1/ï  ¦, we could then calculate that ï  ¦Ã¯â€š ¢ = 0.25. Using Eurocode 7 design approach No. 1, check whether a 3.5m x 3.5m footing is satisfactory to guard against the equilibrium limit state (EQU) for overturning being reached. If necessary, re-design the dimensions of the foundation (must be square) to satisfy the above EQU limit state. For this task ignore lateral earth pressures on column/footing and use the following partial factors: Based on your re-designed footing (if found necessary in Task 1) or the original dimensions (if acceptable in Task 1) carry out calculations to verify the GEO (geotechnical) limit state relating to ground strength, under design approach -1. Re-design the footing width if necessary. Refer to your lecture notes for the partial factors and other formulae

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