1. Given a concentrated load of 200,000 lbs, find the vertical stress (p) at a depth of 15 ft and 10 ft off-center. Use the Boussinesq equation. 2. Given a rectangular area with dimensions of 2 m by 3 m and a load of 195 kN/m²; find the vertical stress (p) in kN/m2 using the Approximation Method for a depth of 1m, 3m, and 5m. With increasing depth how does the pressure change? 3. Given a circular structure with a diameter of 3 m and a load of 250 kN/m², find the vertical stress (p) using the circular method based on elastic theory at a depth of 3 m and 1.5 m off-center. Given a soil unit weight (g) of 16.38 kN/m³, find the overburden pressure (Po) at a depth of 3 m. Find the total pressure (p+po). See the Unit 3 Powerpoint for the table/chart of influence coefficient values. 4. Given the structure in the image below and a load of 2000 Ib/t², find the vertical stress (p) 24 feet below point A. See the Unit 3 PowerPoint for the table of influence coefficient values for square/rectangular structures. You will need to break this structure up into smaller square/rectangular sections. 16 ft 12 ft 20 ft 12 ft

1. Given a concentrated load of 200,000 lbs, find the vertical stress (p) at a depth of 15 ft and 10 ft off-center. Use the Boussinesq equation. 2. Given a rectangular area with dimensions of 2 m by 3 m and a load of 195 kN/m²; find the vertical stress (p) in kN/m2 using the Approximation Method for a depth of 1m, 3m, and 5m. With increasing depth how does the pressure change? 3. Given a circular structure with a diameter of 3 m and a load of 250 kN/m², find the vertical stress (p) using the circular method based on elastic theory at a depth of 3 m and 1.5 m off-center. Given a soil unit weight (g) of 16.38 kN/m³, find the overburden pressure (Po) at a depth of 3 m. Find the total pressure (p+po). See the Unit 3 Powerpoint for the table/chart of influence coefficient values. 4. Given the structure in the image below and a load of 2000 Ib/t², find the vertical stress (p) 24 feet below point A. See the Unit 3 PowerPoint for the table of influence coefficient values for square/rectangular structures. You will need to break this structure up into smaller square/rectangular sections. 16 ft 12 ft 20 ft 12 ft

Principles of Foundation Engineering (MindTap Course List)

8th Edition

ISBN:9781305081550

Author:Braja M. Das

Publisher:Braja M. Das

Chapter6: Vertical Stress Increase In Soil

Section: Chapter Questions

Problem 6.7P: Use Eq. (6.14) to determine the stress increase () at z = 10 ft below the center of the area...

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