A saturated clayey layer has been sandwiched between two sandy layers. The underground water level is 2 m below the surface. By the consideration of several factors, the foundation of the Aerospace Faculty building has been considered as a radie rigid foundation with 20m width. The plane strain condition holds true for this condition (foundation length is 50m). The foundation applies a net 500 kN/m2 to the soil. The foundation bottom is at 2m depth from the surface. Also, several disturbed and undisturbed soil samples have been taken and sent 

Decide on the depth of the sampling.

D: Please estimate the time-dependent settlement using the ordered test results.

E: Estimate the settlement amount completed within 12 months? 

Results of plastic limit test: PL=30%

   Gs=2.70

Unit weights of the layers:

 Unit weights:

 Upper sand layer: γdry= 17 kN/m3

 Clay: γsat= 20.5 kN/m3

 Bottom sand layer: γsat= 19.5 kN/m3

γsat= 19.5 kN/m3

Data from consolidation test

 Dry mass of specimen= 128 g,

 Height of specimen at the beginning of the test=2.54 cm,

 Area of the specimen=30.68 cm2.

 

      
 

 

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To determine the depth of soil sampling consider the layers involved Given the saturated clayey laye... View the full answer