S1 4mC3m6m10m4m3mAH.89.1298.2094.9883.20 SITUATION: A flexible foundation is subjected to a uniformly distributed load of q = 500 kPa%3DDetermine the increase in vertical stress, in kPa, oz at a depth of z = 5 m under point E.ib = zom = B/z,n = L/z%3DTABLE GH O03 can be useful.Table 10.9 Variation of /, with m and a [Eq. (10.31)]0.10.20.30.40.50.60.70.80.91.00.10.00470.00920,01320.01680.01980.02220.02420.02580.02700.02790.20.00920.01790.02590.02590.03280.03870.04350.04740.05040.05280.05470.30.01320.03740.04740.05590.06290.06860.07310.07660.07940.40.01680.03280.04740.06020.07110.08010.08730.09310,09770.10130.50.01980.03870.05590.07110.08400.09470.10340.11040.12470.11580.12020.60.02220,04350.06290.08010.09470.10690.11680.13110.13610.70.80.02420.04740.05040.06860.08730.10340.11690.12770.13650.14360.15370.14910.02580.07310.09310.11040.12470.13650.14610.15980.90.02700.05280.07660.09770.11580.13110.14360.15370.16190.16841.00.02790.05470.05730.07940.10130.12020.12630.13610.14910.15700.15980.16840.17521.20.02930.08320.10630.14310.16840.17770.18511.40.03010.05890.08560.08710,10940.13000.14750.16200.16520.17390.18360.19140.19551.60.03060.05990.11140.13240.15030.17740.18741.80.03090.06060.08800.11260.13400.15210.16720.17970.18990.19812.00.03110.06100.08870.11340.13500.13630.15330.15480.16860.18120,18320.19150.1999250.03140.06160.08950.11450.17040.19380.20243.00.031S0.06180,08980.11500.13680.15550.17110.18410.18470.19470.20344.00.03160.03160.06190.09010.11530.13720.15600.17170.19540.20425.00.06200.09010.11540.13740.15610.17190.18490.19560.20446.00.03160.06200.09020.11540.13740.15620.17190.18500.19570.2045

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Answered: 3m 6m D 10m 4m 3m A 89.12

Engineering

Civil Engineering

3m 6m D 10m 4m 3m A 89.12

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter11: Compressibility Of Soil

Section: Chapter Questions

Problem 11.2P

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A foundation (Figure 1) transmits a stress of 100 kPa on the surface of a soil deposit. a. Evaluate increases of vertical stresses points A, B, and C at the depth of 2m and Sm (2 points) b. At what depth is the increase in vertical stress below A less than 10% of the surface stress? 6 m +2 m- A 2 m -4 m- Figure 1: Plan of foundation
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The initial principal stresses at a certain depth in a clay soil are 100 kPa on the horizontal plane and 50 kPa on the vertical plane (Figure No. 1). Construction of a surface foundation induces additional stresses (Figure No. 2) consisting of a vertical stress of 45 kPa, a lateral stress of 20 kPa and a counter clockwise (with respect to the horizontal plane) shear stress of 40 kPa. a. Plot Mohr's circle for the initial state of the soil b. Plot Mohr's circle for the final state of the soil C. Determine the change in magnitude of the principal stresses d. Determine the change in maximum shear stress e. Determine the change in the orientation of the principal stress plane 100 kPa 45 kPa Figure No. 1 45 kPa 40 kPa Figure No. 2 20 kPa
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Problem II. The initial principal stresses at a certain depth in a clay soil are 100 kPa on the horizontal plane and 50 kPa on the vertical plane. Construction of a surface foundation induces additional stresses consisting of a vertical stress of 45 kPa, a lateral stress of 20 kPa, and a counterclockwise (with respect to the horizontal plane) shear stress of 40 kPa. a. Plot Mohr's circle (1) for the initial state of the soil and (2) after construction of the foundation. b. Determine the change in magnitude of the principal stresses. C. the change in maximum shear stress d. the change in orientation of the principal stress plane resulting from the construction of the foundation.
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