Solve this using the equation for approximation.a. In footing A, compute the stress increase at thecenter of the clay layer assuming that the pressurebeneath the footing is spread at an angle of 2 verticalto 1 horizontal. (in kPa)b. Determine the size of the footing B so that thesettlement in the clay layer is the same beneathfooting A and B. footing A is 1.5x1.5. (in m)c. Determine the primary settlement for normallyconsolidated clay beneath footing A. (in mm) Two footings rest in layer of sand 2.7m thick. The bottomof the footings are 0.9m below the ground surface.Beneath the clay layer is hard pan. The water table is at adepth of 1.8m below the ground surface.P-450 kNP, = 900 kN0.90 m0.90 mY418,50 kN/m'Sand0.90 m20.80 kN/mSandy=18.80-kN/me=1.03, C,= 0.301.80 mClaySolve this using the equation for approximation.a. In footing A, compute the stress increase at the

The foundation of your house is a critical part of its structure as it helps to distribute the load…

Answered: Two footings rest in layer of sand 2.7m…

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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1. A soil profile for an office building foundation is on a sand layer of 10.4 meters, which is located above a normal consolidated sand soil layer with a thickness of 2 meters. Under the clay layer there is coarse sand. The groundwater level is 3 meters below ground level. The sand pore number is 0.76 and the clay moisture content is 43%. The building will exert a pressure of 140 kPa on the clay, so that the clay will undergo primary consolidation. Assume that if it rains there can be a rise in the groundwater level to the surface. So the sand can become saturated with water. Cc = 0.3 and Gs = 2.7.
In the design of retaining wall, the factor of safety against sliding is normally higher than the factor of safety against overturning. O True O False The undrained skin resistance for block failure of group piles in clay is normally calculated using an adhesion factor of 1.0 regardless of the shear strength of the surrounding clay. True False
Find the change in vertical stress at level 3m below the base of footing at Point A. It is to be assumed the thickness of both footings are the same. L1 = 2.5m L2 = 1.5m L3 = 4m L4 = 6m L5 = 7m
Please show all work and help me out! I will leave good response!
A soil profile is provided below. The estimated stresses from a spread footing overlying a 9 meter thick over-consolidated clay layer are: 180.0 kPa (top of the clay layer) 97.2 kPa (middle of the clay layer) 64.3 kPa (bottom of the clay layer) Estimate the primary settlement (in meters) of the clay layer assuming Cc'= Cc/log (1+eo) = 0.22 and Cs' =Cs/log (1+eo)= 0.04 taken from consolidation curves. Assume the pre-consolidation pressure is 215 kPa. Assume no settlement from the overlying sand Depth o (GS) 1- layer. ニ(7.3 SAND KN/m³ -3 m XSAT = 19.8 ELAY 12m
depth "z" = 16ft
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
Shear Stress 5. Please provide proper discussion and illustration. Clear and complete solution please thank you. A clay soil has an undrained shear strength (cohesion, Cu) of 800 psf. How could the strength of this soil be increased?
Q.1. A rectangular footing 2.0 m by 3.0 m is built in a homogeneous bed of sand of having bulk unit weight 20 kN/m³ and saturated unit weight 21 kN/m³ with an angle of shearing resistance of ( 37 P. The depth of the base of footing is 1.8 m below the ground surface and water table is located at a deth of 1.0m below the base of the foundation. a) Justify the adequacy of the footing if the proposed design load on the foundation is 1500 kN. b) depth 1.0 m below the ground Level. Calculate the safe load can be carried by the footing if the water table is located at a Consider the factor of safety of 3. Use Terzaghi's Analysis.
A 3.19m x 5.35m footing has a 407 mm column at center with the loads P = 875 kN and My=120.4 kN-m Calculate the pressure at point 2 of the footing in kPa ANSWER IS 64.5392
Calculate the intensity of stress below the centre of footing at depth of 8m due to load of 2000 KN/m² over the footing area of 5 mx 5 m. (Consider 2V: 1H Spread)
Why the bearing capacity of soil reduces when the groundwater table rises up to the ground surface? point: a) Because the effective unit weight. of the soil below the footing will reduce by almost half. b) Because the effective stress at the level of the base of foundation will reduce significantly. c) Both a and b. d) Because groundwater produces seepage.

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Two footings rest in layer of sand 2.7m thick. The bottom of the footings are 0.9m below the ground surface. Beneath the clay layer is hard pan. The water table is at a depth of 1.8m below the ground surface.