Find the depth of the borehole required for the site investigation in which a circular footing of 3 m diameter is constructed at a depth of 2 m below the ground surface; che foundation is subjected to a load of 1560 kN. Notes: Water table (W.T) is located at 1.5 m below the ground surface (G.S.). Bedrock layer is located at 22 m below G.S. Dry and saturated unit weights of the soil is 17 and 19 kN/m', respectively.

Find the depth of the borehole required for the site investigation in which a circular footing of 3 m diameter is constructed at a depth of 2 m below the ground surface; che foundation is subjected to a load of 1560 kN. Notes: Water table (W.T) is located at 1.5 m below the ground surface (G.S.). Bedrock layer is located at 22 m below G.S. Dry and saturated unit weights of the soil is 17 and 19 kN/m', respectively.

Principles of Foundation Engineering (MindTap Course List)

9th Edition

ISBN:9781337705028

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter6: Shallow Foundations: Ultimate Bearing Capacity

Section: Chapter Questions

Problem 6.17P: A 2.0 m 2.0 m square pad footing will be placed in a normally consolidated clay soil to carry a...

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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.
A 2.0 m 2.0 m square pad footing will be placed in a normally consolidated clay soil to carry a column load Q. The depth of the footing is 1.0 m. The soil parameters are: c = 0, = 26, = 19 kN/m3, and cu = 60 kN/m2. Determine the maximum possible value for Q, considering short-term and long-term stability of the footing.
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A circular footing is to carry the load given. The foundation shall be embedded at a depth of 2.2 m below ground level (GL). The groundwater table was observed 2 m below BOF. Using the following soil data (dense sand): γsoil = 18 kN/m3 γsub = 10 kN/m3 c = 12 kPa Nc = 17.69 Nq = 7.44 Nγ = 3.64 FS = 3.0 If the total service load to be carried concentrically is 520 kN, what should be the radius of the circular footing (m)? the final ans is 0.91
A square footing having the dimension of 24 x24 (B=L=24) is to beconstructed on a deep clay deposit. Superstructural stress is calculated as 150 kPa. Thefoundation will rest at the depth of 2 m from the surface. The groundwater table is located onthe surface and the saturated unit weight of the clay is 17 kN/m3. Determine the depth of theborehole considering both de Beer’s rule and the Turkish Earthquake Code (2018).
2- Determine the stress increase below the center of the footing using both theoretical and approximate methods at the top, middle and bottom of the clay layer. In addition, determine the average stress increase for the clay layer. Dimensions in Heights in m Unit weights in kN/m3 kN m P2 H1 H2 H3 BL Hw 2.5 Yoati 18.0 19.0 3.0 3.0 2.0 16.0 2 3 1174 Load - 0 Hw H1 H2 H3 OSand Clay (hoemally conactiduted)
SOLVE USING CSA REQUIREMENTS PLS
The width and depth of a footing are 2 and 1.5 m respectively. The water table at the site is at a depth of 3 m below the ground level. The water table correction factor for the calculation of the bearing capacity of soil is
A 2m x 3m footing constructed on a sand deposit (as shown in the Figure below) is subjected to centric vertical loading at a depth of 1.5m below the ground surface. Energy-corrected SPT Noo values from the field are given below. Assume c' = 0, y = 18.5 kN/m, Vat = 19.5 kN/m, %3D Assuming Factor of Safety = 3, compare the gross allowable load for the following scenarios. (a) When the ground water table is located at the ground surface. (b) When the ground water table is located 0.5 m below the ground surface. (c) When the ground water table is located at the base of the footing. (d) When the ground water table is located 1m below the base of the footing. (e) When the ground water table is located 5 m below the base of the footing. Ground water D able Casel D Casell Yaturated unit weight Depth (m) Neo 1.5 3.0 4.5 6.0 10 7.5 10 9.0
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Problem 6: A strip footing founded on dense sand (p =35° from direct shear tests and ysat-17kN/m³), is to be designed to support a vertical load of 400kN per meter length. Determine a suitable width for this footing for FS=3. The footing is located 1 m below the ground surface. The groundwater level is 10 m below the ground surface. Use Meyerhof Eq. but for shape factors to Use DeBeer and for depth factor to use those proposed by Hansen. (use Yb-15.5kN/m³)
(5) There is a strip footing with a width of 2 m and a buried depth of 1.5 m. The foundation soil is silt with a unit weight of 19 kN/m', a saturated unit weight of 20 kN/m², cohesion of 10 kPa, and an internal friction angle of 20°. The groundwater level is I m below the ground surface. Please determine the ultimate bearing capacity of the foundation. (