7. A shallow square foundation with the dimension of 2.5m by 2.5m is constructed at a depth of 1.5m below the ground surface to support a column load of 250kN. The foundation plan is shown on the following influence chart for point A located 3.5m below the surface. a. Calculate the length of the scale (AB) of the influence chart. b. Calculate the increase in vertical stress at point A. Point A A B Influence Value = 0.005 (Show all working calculations.)

7. A shallow square foundation with the dimension of 2.5m by 2.5m is constructed at a depth of 1.5m below the ground surface to support a column load of 250kN. The foundation plan is shown on the following influence chart for point A located 3.5m below the surface. a. Calculate the length of the scale (AB) of the influence chart. b. Calculate the increase in vertical stress at point A. Point A A B Influence Value = 0.005 (Show all working calculations.)

Principles of Foundation Engineering (MindTap Course List)

9th Edition

ISBN:9781337705028

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter8: Vertical Stress Increase In Soil

Section: Chapter Questions

Problem 8.11P

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