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in a field test a spread footing was quickly loaded until it failed at 80kN. the...

in a field test a spread footing was quickly loaded until it failed at 80kN. the footing was 40x40cm and at depth of 1m below the clay. the unit weight of the clay is 19kN/m^3.
a.) what is the undrained strenfth of the clay?
b.) what would you expect the capcity of a 2m wode strip footing founded 1m below soil surface at the same site?
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