5- A 1.5x1.5 m square footing is constructed in a cohesive soil at depth 1.2 m the ultimate bearing capacity for this footing calculated using Terzaghi's equation was 728 kN/m2. If the load has an eccentricity of 0.18 m from the center line of footing what will be the value of ultimate bearing capacity using Meyerhof's reduction factor? a) 633 kN/m2 b) 673 kN/m2 c) 553 kN/m2 d) 728 kN/m2

5- A 1.5x1.5 m square footing is constructed in a cohesive soil at depth 1.2 m the ultimate bearing capacity for this footing calculated using Terzaghi's equation was 728 kN/m2. If the load has an eccentricity of 0.18 m from the center line of footing what will be the value of ultimate bearing capacity using Meyerhof's reduction factor? a) 633 kN/m2 b) 673 kN/m2 c) 553 kN/m2 d) 728 kN/m2

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter16: Shallow Foundations-bearing Capacity

Section: Chapter Questions

Problem 16.19CTP: 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, cu = 60 kN/m2 (=0 condition). Determine the maximum possible value for Q, considering short-term and long-term stability of the footing.
5-A 1.5x1.5 m square footing is constructed in a cohesive soil at depth 1.2 m the ultimate bearing capacity for this footing calculated using Terzaghi's equation was 728 kN/m2. If the load has an eccentricity of 0.18 m from the center line of footing what will be the value of ultimate bearing capacity using Meyerhof's reduction factor? a) 633 kN/m2 b) 673 kN/m2 c) 553 kN/m2 d) 728 kN/m2
An isolated footing having dimensions of 1.5m x 2.2m is provided at a depth of 1.2m in a stratum of cohesionless soil having a relative density of 71%. Determine the bearing capacity factors Nc, Nq and Nγ as per IS code.
A footing is supported by soil having a cohesion of 50 kPa. The unit weight of soil is 19 kN/m^3 and the depth of footing is 3 m below the ground surface. The angle of internal friction is 10 degrees.1. Assuming a local shear failure, which of the following most nearly gives the net ultimate bearing capacity per meter for a strip footing having a width of 1.25 m? Use the equation of Terzaghi’s ultimate bearing capacity for strip footing. a. 314 kPab. 380 KPac. 256 kPad. 280 kPa2. If factor of safety is 2.5, which of the following most nearly gives the safe bearing pressure for a footing 1.25 m wide and 6 m long assuming a general shear failure? Use the equation.a. 208 kPab. 240 kPac. 300 KPad. 180 kPa
Question 3. A strip footing is to be used in a clay soil in which the imposed load is 1 MN/m length. The clay layer is 7.0 m thick and overlies a stiff, fractured siltstone. The water table lies at a depth of 2.0 m. a. Determine the footing width based on the long-term allowable bearing capacity (calculated according to the method in the Canadian Foundation Engineering Manual; neglect depth factors) using a factor of safety of 3.0 for a burial depth of 2.0 m. The material properties of the clay are: c' = 15 E = 42 MPa o' = 27° y= 18.5 kN/m³ Ce = 0.40 e, = 0.90 C, = 9.3 x 104m²/day Cu = 25 b. Why would bearing capacity failure likely not govern the design of this structure?
Assume we are building a foundation on a saturated clay deposit with an average undrainedshear strength of 2,000 lb/ft2 and a COV of 0.2. The average unit weight for the soil is102 lb/ft3 with a COV of 0.05. What is the mean short-term nominal bearing capacity of acontinuous footing founded at a depth of 5 ft? What is the probability that the nominal bearing capacity of a certain footing would be less than 75 percent of the mean nominal bearing capac-ity if the undrained shear strength and unit weight are normally distributed and independent?
For a certain soil the cohesion is 50 kPa, the unit weight is 19.2 kN/m³, angle of friction is 10° 1. Assuming local shear failure, calculate the net ultimate bearing capacity in kPa for a strip footing of width = 4.5 m at a depth of 4.5 m. Terzaghi's ultimate bearing capacity equation for strip footing is given by qu = c'Nc' + YDfNq' + 0.5YBNY' with Nc' = 7.5, Nq' = 1.8, NY' = 0.48 2. Considering general shear failure, calculate the net ultimate bearing capacity on a square footing 4m x 4m using a load factor of 2.5 m. using Nc 9, Nq = 2.5, Ny = 1.2 3. Compute the net allowable load on the square footing %3D %3D %3D %3D %3D
2) A square footing carries an allowable load of 59130kg including its own weight. The bottom of footing is 1.0m below ground surface and water table coincide with bottom of footing. Assume General shear failure. Unit Weight = 1846kg/cu.m c= 1605kg/sqm Nc = 35 Nq=22 Ny=19 1.0m Sat unit wt = 1956kg/cu.m
A square footing has dimensions 2 m x 2 m and founded at a depth of 2 m. Consider the following statements regarding capacity of footing in pure clay with an unconfined compressive strength of 0.15 N/mm?, o = 0° and y = 1.7 g/cm3. Assume Terzaghi's factors for o = 0 as Nc = 5.7; N. =1 and N., = 0. Choose the correct statement(s): A Net ultimate bearing capacity is 555.75 kN/m2. Correct Option Ultimate bearing capacity is 589.104 kN/m2. Correct Option C Net ultimate bearing capacity is 427.5 kN/m2. Ultimate bearing capacity is 460.85 kN/m2.
Question 3 A continuous concrete footing (yc = 24 kN/m³) of breadth 2.0 m and thickness 0.5 m is to be founded in a clay soil (cu = 22 kPa; y = 19 kN/m³) at a depth of 1.0 m. The footing will carry an applied vertical load of magnitude 85 kN/m run. The load will act on the centre line of the footing. Apply a factor of safety of 1.35 to the permanent action (dead load) and a factor of safety of 1 to the soil material properties and bearing resistance. Verify the bearing resistance limit state under undrained conditions. Is the width appropriate? (Yes- FOS>1).
i) A strip footing of width B=1m is embedded 0.6m in soil. The soil has unit weight equal to 19kN/m3 and a critical-state friction angle Øc of 32o . Assume water table to be deep, what is the ultimate bearing capacity of the soil? ii) A square footing is to be constructed on a deep deposit of sand at a depth of 0.9 m to carry a design load of 300 kN with a factor of safety of 2.5. The ground water table may rise to the ground level during rainy season. Design the plan dimension of footing given γsat = 20.8 kN/m3 , Nc = 25, Nq = 34 and Nγ =32.