A circular foundation having 9o=720 kPa and radius of 2m is placed on a soil section as shown in figure (1), if the ground water level was located at N.G.S, for the soil element (A) which located under the center of the foundation at the middle of clay layer. Calculate the followings: Sandy soil Ysat19.74 kN/m³ ww eo = 0.54 E Clayey soil Yat19.18 kN/m³ eo =0.8 Calculate the Effective stress Choose... + at soil element (A) in (kPa) The increase in stress (kPa) due to footing load (Use Approximated method) at soil element (A) Choose...

A circular foundation having 9o=720 kPa and radius of 2m is placed on a soil section as shown in figure (1), if the ground water level was located at N.G.S, for the soil element (A) which located under the center of the foundation at the middle of clay layer. Calculate the followings: Sandy soil Ysat19.74 kN/m³ ww eo = 0.54 E Clayey soil Yat19.18 kN/m³ eo =0.8 Calculate the Effective stress Choose... + at soil element (A) in (kPa) The increase in stress (kPa) due to footing load (Use Approximated method) at soil element (A) Choose...

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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A circular foundation 2m in diameter is shown in the figure below. A normallyconsolidated clay layer 5m thick is located below the foundation. Determine the consolidation settlement of the clay. 1- method 2:1 2- consolidation settlement Cc method
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A square footing is loaded as shown in Figure 05.13. The center of the base of footing is at coordinate (0, 0, 0). Determine the increase in vertical stress at a point whose coordinate is (3, 0, 4) using pressure isobars based on Boussinesq equation for square footings shown in Figure 05.7. O O O 10.215 O 10.512 10.125 10.251 P = 900 KN #7 2 m Figure 05.13
A rectangular concrete slab, 3mx4m, rests on the surface of a soil layer as shown in the figure. The saturated clay has over consolidation ratio of 2, w=38%, and Cr=0.05. Determine the primary consolidation settlement of the clay. The load on the foundation is 2000OKN. Assume that 20% of voids in sand is air and porosity of sand is 0.43. Cc=0.28 Gs=2.65 4 m Fine sand 5 m Clay 2 m
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A square column foundation with base of 1.51 m is shown in the figure. It carries an axial load of 468 kN and has its bottom resting on the ground water table located h1 = 1.4 m. below the ground surface. h2 = 0.8 m and h3 = 2.5 m. Compute the settlement of the clay layer in millimeter caused by primary consolidation if the preconsolidation pressure of the clay is 98 KPa. |P Shy h1 kak 1:1:1 2222 1:1 I Dry Sand Wet Sand Clay Soil Properties: Unit Weight of Dry Sand = 15.4 KN/m3 Saturated Unit Weight of Sand = 19.4 KN/m3 Saturated Unit Weight of Clay = 18.6 KN/m3 Compression Index = 0.264 Void Ratio of Clay = 0.75 Swell Index = 1/5Cc 11 LEE ILLI CEET EEGGE LLLLLLI TELLIT 1
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Q. 12 A soil profile at a certain location is as shown in figure. A rigid circular foundation of 4 m diameter rests on the sand. The contact pressure at the underside of the foundation is 230 kN/m?. The average coefficient of compressibility of the clay is 0.65 × 10-3 m2/kN for the stress range encountered. The ultimate settlement of the foundation assuming 45° load distribution