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A rectangular footing (3mx2m) exerts a pressure of 100 kN/m2 on a cohesive soil (Es35x104kN/m2 and p= 0.5). Solve the immediate settlement at the centre, assuming i) the footing is flexible and ii) the footing is rigid Take If for the flexible footing is 1.36 and If for rigid footing is 1.06

A rectangular footing (3mx2m) exerts a pressure of 100 kN/m2 on a cohesive soil (Es35x104kN/m2 and p= 0.5). Solve the immediate settlement at the centre, assuming i) the footing is flexible and ii) the footing is rigid Take If for the flexible footing is 1.36 and If for rigid footing is 1.06

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Two load tests were conducted at a site - one with a 0.5 m square test plate and the other with a 1.0 m square test plate. For a settlement of 25 mm, the loads were found to 7. be 60 kN and 180 kN, respectively in the two tests. Solve the allowable bearing pressure of the sand and the load which a square footing of 2 m x 2 m, can carry with the settlement not exceeding 25 mm. A strip footing of width 2 m is founded at a depth of 2 m below the ground surface in a (c - p) soil having a cohesion c = 30 kN/m2 and angle of shearing resistance, p = 35°. %3D The water table is at a depth of 8 m below ground level. The moist weight of soil above the water table is 17.25 8. kN/m3. Solve (i) the ultimate bearing capacity of the soil, (ii) the net bearing capacity, and (ii) the net safe bearing pressure and the load/m for a factor of safety of 3. Use the general shear failure theory of Terzaghi. For p = 35°, N. = 57.8, Nq =41.4, and Ny = 42.4.
Transcribed Image Text:Two load tests were conducted at a site - one with a 0.5 m square test plate and the other with a 1.0 m square test plate. For a settlement of 25 mm, the loads were found to 7. be 60 kN and 180 kN, respectively in the two tests. Solve the allowable bearing pressure of the sand and the load which a square footing of 2 m x 2 m, can carry with the settlement not exceeding 25 mm. A strip footing of width 2 m is founded at a depth of 2 m below the ground surface in a (c - p) soil having a cohesion c = 30 kN/m2 and angle of shearing resistance, p = 35°. %3D The water table is at a depth of 8 m below ground level. The moist weight of soil above the water table is 17.25 8. kN/m3. Solve (i) the ultimate bearing capacity of the soil, (ii) the net bearing capacity, and (ii) the net safe bearing pressure and the load/m for a factor of safety of 3. Use the general shear failure theory of Terzaghi. For p = 35°, N. = 57.8, Nq =41.4, and Ny = 42.4.
A rectangular footing (3mx2m) exerts a pressure of 100 kN/m2 on a cohesive soil (Es=5x104 kN/m2 and u= 0.5). 5. Solve the immediate settlement at the centre, assuming i) the footing is flexible and ii) the footing is rigid Take If for the flexible footing is 1.36 and If for rigid footing is 1.06 A footing, 2 m square, is founded at a depth of 1.5 m in a sand deposit, for which the corrected value of N is 27. The water table is at adepth of 2 m from the surface. Solve the 6. net allowable bearing pressure, if the permissible settlement is 40 mm and a factor of safety of 3 is desired against shear failure.
Transcribed Image Text:A rectangular footing (3mx2m) exerts a pressure of 100 kN/m2 on a cohesive soil (Es=5x104 kN/m2 and u= 0.5). 5. Solve the immediate settlement at the centre, assuming i) the footing is flexible and ii) the footing is rigid Take If for the flexible footing is 1.36 and If for rigid footing is 1.06 A footing, 2 m square, is founded at a depth of 1.5 m in a sand deposit, for which the corrected value of N is 27. The water table is at adepth of 2 m from the surface. Solve the 6. net allowable bearing pressure, if the permissible settlement is 40 mm and a factor of safety of 3 is desired against shear failure.
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