Determine the preliminary settlement analysis, Civil Engineering

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Preliminary settlement analysis for a building indicated a settlement of 50 mm in 4 years and an  ultimate  settlement  of  250 mm.  The average pressure increment in the clay stratum was 30 kN/m2.

If the following variations occurred in the assumptions, verify the revised value of ultimate settlement and the settlements at the end of the loading period and that at 3 years after the completion of the building.

(i) The loading period was 2 years, which was not considered in the preliminary analysis.

(ii) Borings shown 25% more thickness for the clay layer than originally assumed.

(iii) The water table got lowered permanently during construction by 1.5 metres.

 


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