ExerciseA certain site is underlain by clay. A proposed building for this site having a500 kN column load (including the weight of foundation) is designed to besupported on a surface square footing. A field plate loading test wasperformed using a square plate of size 30 cm, Figure 1 displays the pressure-settlement curve, from which the ultimate capacity of the plate was 180 kN/m2.Answer the following questions:According to the plate loading test result, considering a factor of safety of 2against vertical bearing capacity and the allowable settlement of 2.5 cm fordesign requirements, determine the minimum footing size to meet therequirements and the condition which governs the design (bearing capacity orsettlement). Pressure (kN/m2)200180180180160140120120100100806040200.1015202530Settlement (mm)Figure 1. Load-settlement curve of the plate loading test2.

Given data:The column load on the building (P) is 500 kN.The footing is a square footing.The size of…

Answered: Exercise A certain site is underlain by…

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter9: Consolidation

Section: Chapter Questions

Problem 9.18P

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Plate-load tests were conducted in-situ for a commercial building project in Rizal, where preliminary investigation indicated the presence of sandy soil. The apparatus had a circular plate with a radius of 0.38m. The results suggests an ultimate bearing pressure of 349 kN/m2. The plate was placed at a depth of 1.90m from the surface, with the soil having a unit weight of 16.87kN/m3. If a circular footing with radius of 1.15m will be used, what must be the maximum net live load (kN) if the net dead load is 349kN? Consider a safety factor of 3.5 and ASD Plate-load tests were conducted in-situ for a commercial building project in Rizal, where preliminary investigation indicated the presence of sandy soil. The apparatus had a circular plate with a radius of 0.38m. The results suggests an ultimate bearing pressure of 349 kN/m2. The plate was placed at a depth of 1.90m from the surface, with the soil having a unit weight of 16.87kN/m3. If a circular footing with radius of 1.15m will be…
Plate load test is adopted globally to determine in-situ bearing capacity of the subsoil and considered as one of the most important field test for any big construction project. A plate load test was conducted on a 300 mm side square plate at a depth of 1.10 m below the ground level in pure clayey soil for an important construction site. Failure of the soil occurred at a load of 45 kN. i. Calculate the safe bearing capacity of a 1.5 m wide square footing founded at a depth of 1.5 m in the same sub-soil. Assume the total unit weight and factor of safety of 18.2 kN/m3 and 2.0 respectively. ii. State any three limitations of the above mentioned test carried in field.
Please help me in answering the following practice questionsAt a site, it is planned that a circular grain silo will be constructed at the ground surface. The grain silo will be set on a rigid circular foundation that has a diameter of 6 meters. Assume that the silo will apply a concentric vertical load Q on top of the circular foundation and that the foundation will transfer this load to the top of the silty clay layer as a uniform vertical pressure q. The soil profile at this site is as follows (also shown in attached image): 9-m-deep silty clay layer underlain by bedrock Groundwater table located at a depth of 6 m from the horizontal ground surface, groundwater condition is hydrostatic. Silty clay layer Air-entry value (AEV) = 120 kPa Specific gravity GS = 2.72 Porosity n = 0.42 Average undrained shear strength su = 40 kPa Critical state friction angle Φ'C= 24 degrees (a) How can I compute pore-water pressure, total vertical stress, and effective vertical stress at point P…
A 1.8 m square, 2 m deep footing supports a service load of 570 kN. It is supported on a clayey sand. A dilatometer test run at the site has returned the following modulus profile. Compute the footing settlement.
please answer asap The column footing has been subjected to the ground surface. The clay layer has a unit weight of20.26 kN/m3 and has a thickness of 4.5 meters and is overlain by the sand layer with a unit weight of 15.17 kN/m3 and has a thickness of 3.5 meters. The location of the water table is 2 meters below the ground surface. If the sand layer is saturated, its unit weight becomes 18.45 kN/m3.Determine the following: The normal consolidation settlement if the footing (2.5 m × 4 m) has a load of 650 kN. The normal consolidation settlement if the footing (2 m x 3.5 m) has a load of 750
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