3. A point load of 700 kN is applied on the surface of thick layer of clay. Using Boussinesq's elastic analysis, the estimated vertical stress (?v) at a depth of 2 m and a radial distance of 1.0 m from the point of application of the load, is :
5. The time for a clay layer to achieve 90% consolidation is 15 years. The time required to achieve 90% consolidation; if the layer were twice as thick, 3 times forr permeable and 4 times more compressible would be :
7. For an anisotropic soil, permeabilities in x and y directions are kx and ky respectively in a two dimensional flow. The effective permeability keq for the soil is given by
8. A parabolic curve is used to connect a 4% upgrade with a 2% downgrade as shown in the below figure. The highest point on the summit is at a distance of (measured horizontally from the first tangent point - (FTP)
Correct Answer: The slope of the S-curve with effective rainfall intensity of 1 cm/hr
10. The plan of stairs supported at each end by landings spanning parallel with risers is shown in the below figure. The effective span of staircase slab is