3) A circular footing having a diameter of 1.2m has its bottom at a depth of 2.7m from the ground surface. Water table is located at a depth of 1.3m below the ground. Soil has the ff. properties. Dry unit weight = 18.1kn/cum Saturated unit weight = 19.3kn//cum C = 15.74kpa Angle of internal friction = 20deg %3D a) Assuming local shear failure, find ultimate bearing pressure using terzaghi's equation b) Det. Allowable bearing capacity using a factor of safety of 3. c) Find allowable load on footing.

3) A circular footing having a diameter of 1.2m has its bottom at a depth of 2.7m from the ground surface. Water table is located at a depth of 1.3m below the ground. Soil has the ff. properties. Dry unit weight = 18.1kn/cum Saturated unit weight = 19.3kn//cum C = 15.74kpa Angle of internal friction = 20deg %3D a) Assuming local shear failure, find ultimate bearing pressure using terzaghi's equation b) Det. Allowable bearing capacity using a factor of safety of 3. c) Find allowable load on footing.

Principles of Foundation Engineering (MindTap Course List)

9th Edition

ISBN:9781337705028

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter10: Mat Foundations

Section: Chapter Questions

Problem 10.1P: Refer to the rectangular combined footing in Figure 10.1, with Q1 = 100 kip and Q2 = 150 kip. The...

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Refer to the rectangular combined footing in Figure 10.1, with Q1 = 100 kip and Q2 = 150 kip. The distance between the two column loads L3 = 13.5 ft. The proximity of the property line at the left edge requires that L2 = 3.0 ft. The net allowable soil pressure is 2500 lb/ft2. Determine the breadth and length of a rectangular combined footing.
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0:YA O A comprehensive.. Example (1): A strip footing of width 3 m is founded at a depth of 2 m below the ground surface in a (c - 0) soil having a cohesion c = 30 kN/m? and angle of shearing resistance o = 35°. The water table is at a depth of 5 m below ground level. The moist weight of soil above the water table is 17.25 kN/m. Determine (a) the ultimate bearing capacity of the soil, (b) the net bearing capacity, and (c) the net allowable bearing pressure and the load/m for a factor of safety of 3. Use the general shear failure theory of Terzaghi. Example (2): If the soil in Ex. (1) fails by local shear failure, determine the net safe bearing pressure. All the other data given in Ex. (1) remain the same. Example (3): If the water table in Ex. (1) rises to the ground level, determine the net safe bearing pressure of the footing. All the other data given in Ex. (1) remain the same. Assume the saturated unit weight of the soil ya= 18.5 kN/m'. Example (4): If the water table in Ex.1…