This is Civil Engineering. Specifically Foundation Engineering. Please post thorough answers and work. Any plot needs to be computer generated. Thank you 6.3 Refer to Figure 6.7 and consider a rectangular foundation. Given:B = 1.5 m, L= 2.5 m, Dy= 1.2 m, H = 0.9 m, d' = 40°, d = 0, andy = 17 kN/m³, Using a factor of safety of 3, determine the grossallowable load the foundation can carry. Use Eq. (6.10).SHOW ANSWER6.4 Repeat Problem 6.3 with the following data: B = 1.5 m, L = 1.5 m,Dj = 1 m, H = 0.6 m, o'= 35°, c = 0, and y = 15 kN/m³. UseFS = 3.(6.10)=qN₁F + BN, F₁qu => 270▸ Details(6.9)Figure 6.7▶ Details1(a) Failure surface under a rough continuous foundation; (b) variation ofD/B with soil friction angle d'where0Now, if a rigid rough base is located at a depth of H D, N₁ = N₁, N₁ = N₁, and N₁ = N₁ (Lundgren andMortensen, 1953). The variations of Nº, Nº, and N with H/B and the soilfriction angle ø' are given in Figures 6.8, 6.9, and 6.10, respectively.It can be seen from Figures 6.8, 6.9 and 6.10 that when the depth to the rigidbase H decreases, the bearing capacity factors and hence the ultimate bearingcapacity of the foundation increase. It can also be seen that when H>B,especially for lower friction angles, one can conservatively ignore the presenceof the rigid base and use the general bearing capacity factors Ne, Ng, and Ny(Table 5.3).

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6.3 Refer to Figure 6.7 and consider a rectangular foundation. Given: B = 1.5 m, L=2.5 m, Df = 1.2 m, H = 0.9 m, o' = 40°, c = 0, and y = 17 kN /m³, Using a factor of safety of 3, determine the gross allowable load the foundation can carry. Use Eq. (6.10). SHOW ANSWER 6.4 Repeat Problem 6.3 with the following data: B = 1.5 m, L = 1.5 m, Dj = 1 m, H = 0.6 m, ' = 35°, c = 0, and y = 15 kN/m³. Use FS = 3.

6.3 Refer to Figure 6.7 and consider a rectangular foundation. Given: B = 1.5 m, L=2.5 m, Df = 1.2 m, H = 0.9 m, o' = 40°, c = 0, and y = 17 kN /m³, Using a factor of safety of 3, determine the gross allowable load the foundation can carry. Use Eq. (6.10). SHOW ANSWER 6.4 Repeat Problem 6.3 with the following data: B = 1.5 m, L = 1.5 m, Dj = 1 m, H = 0.6 m, ' = 35°, c = 0, and y = 15 kN/m³. Use FS = 3.

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 10.11P

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