KN The square footing below is built on saturated sand with Ysat = 20 and Ø' = 30°. If the groundwater level rises to the surface, how would the long-term bearing capacity change? m3 Use the Terzaghi method and assume the Internal friction angle will not change in these two KN conditions. Yw = 10; m³ gult,2 = ?) quit,1 Z P 3.00 1 B/6 3.00 P (1) (2)

X=30 Pls answer this question correctly. Explain every portion and try keep handwriting good

A 1.2 meter wide long (strip) footing carries a wall loading of 48 kN per meter of wall length. What vertical stress increase results below the center of the footing at depths of 1 meter, 2 meter, and 4 meter, assuming: (a) Boussinesq conditions apply.(b) Westergaard conditions apply. (c) Show all work

The following results were obtained from CU tests on a clay soil that is the foundation material for an embankment. 03 (kPa) 300 400 600 0₁-03 (kPa) 331 420 487 Au (kPa) 111 160 322 (a) Determine the total and effective principal stresses for all three tests (You may summarize them in a table). (b) Recommend the shear strength parameters to be used for short-term and long-term analyses. The maximum confining pressure (cell pressure) at the depth of interest is 300 kPa. (Note: the clay is a normally consolidated one).