Structural Analysis
6th Edition
ISBN: 9781337630931
Author: KASSIMALI, Aslam.
Publisher: Cengage,
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Question
A circular footing with a 1.5 m diameter is to be constructed 1.22 m
below the ground surface. The subsoil consists of a uniform deposit
of dense soil having the following strength parameters:
Angle of Friction = 25o Nc = 24.1 Nq = 13.1 Ny = 9.1
Cohesion = 48 kN/m2
Unit weight of soil = 20.12 kN/m2
The groundwater table is at a great depth and its effect can be
ignored.
Determine the following:
a) Ultimate bearing Capacity of the soil
b) Compute the gross allowable bearing capacity of the soil using a
factor of safety of 3.
c) Compute the total allowable load that the footing can carry.
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- A medium dense soil has the following properties: cohesion = 6 kPaγsoil = 14.7 kN/m3 Φ=22o. Factor of safety = 2.5If a circular footing is 2 meters deep from the ground surface, with a diameter of 2.2 meters, what is the net allowable load (kN) that the footing can carry. Choices: A. 280.59 kNB. 896.78 kNC. 410.47 kND. 2690.34 kNarrow_forwardCEN 333 Geotechnicalarrow_forwardQA 5m deep deposit of silty sand lies above a 4m deep deposit of The Uneler- gravel. gravel is lain by a deep layer of stiff clay. The ground water table is found 2m. below the ground sur lace. The Soil Properties are:- of Bal Sand below GWT = 1.75 Mg 1 m³ Pat Isat of gravel = 2.05 Mg/m³ sat of sand above G.WT = 1.7 Mg/m³ Draw The distribution of vertical total stress, Pore water pressure, and vertical effective stress with depth down to the clay layer. 0 = 8xh 8 = 1.7 Mg/m³ Sat St But = 1.95 Mg/m³ = 2.05 Mg/m³ D GWT silty sand G.L gravel clay H 5⁰marrow_forward
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