A rectangular raft of size 20 x 15 m founded at a depth of 3.0 m below the ground surface is subjected to a uniform pressure of 200 kPa. Assume the center of the area is the origin of coordinates (0, 0). and the corners have coordinates (7.5, 10). Calculate stresses at a depth of 20 m below the foundation level by the methods of (a) Boussinesq, and (b) Westergaard at coordinates of (0, 0), (0, 7.5), (7.5, 0) (7.5, 10) and (10, 12). Also determine the ratios of the stresses as obtained by the two methods. Neglect the effect of foundation depth on the stresse
A rectangular raft of size 20 x 15 m founded at a depth of 3.0 m below the ground surface is subjected to a uniform pressure of 200 kPa. Assume the center of the area is the origin of coordinates (0, 0). and the corners have coordinates (7.5, 10). Calculate stresses at a depth of 20 m below the foundation level by the methods of (a) Boussinesq, and (b) Westergaard at coordinates of (0, 0), (0, 7.5), (7.5, 0) (7.5, 10) and (10, 12). Also determine the ratios of the stresses as obtained by the two methods. Neglect the effect of foundation depth on the stresse
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Q.4 A rectangular raft of size 20 x 15 m founded at a depth of 3.0 m below the ground surface
is subjected to a uniform pressure of 200 kPa. Assume the center of the area is the
origin of coordinates (0, 0). and the corners have coordinates (7.5, 10). Calculate
stresses at a depth of 20 m below the foundation level by the methods of (a) Boussinesq,
and (b) Westergaard at coordinates of (0, 0), (0, 7.5), (7.5, 0) (7.5, 10) and (10, 12). Also
determine the ratios of the stresses as obtained by the two methods. Neglect the effect
of foundation depth on the stresses
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