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1. A strip footing with a width of 3 m at a depth of 1.0 m is constructed on a 25 m thick sandy soil stratum. Given: y=18 kN/m³, the elastic modulus of the sandy soil is 8,500 kN/m², the gross pressure is 200 kN/m². Estimate the settlement of the footing after 10 years by using the strain influence factor method (Schmertmann et al. 1978) as outlined below. q=yD 920 B I, z (m) 0.1 Y I, Z₁ = 0.5B Z2=2B L/B=1 (Square) 9(1) =B Z₂ = 4B z 0.2 Iz (m) L/B ≥10 (Strip) Z2 Se = C₁C₂(-9) Iz Az I, at the middle I₂ Δε Layer of the layer Es Az E, no. 1 Az(1) Es(1) Iz(1) 1:0) - Δει C₁1 0.5: q 9-9 Es(1) time in years 2 Az(2) Es(2) Iz(2) C₂ =1+0.2 log 0.1 i Az(D) Es(0) 40 12(0) Izo = 0.1 0.0111 B 1 (1/3 - 1) ≤ 0.2 Iz(i) Azi Es(i) : Iz(n) Iz(n) n AZ(n) Es(n) Azn Es(n) Iz(m) 1, Az Z1 NB B Z2 = 0.5 +0.1 z(1) 55 (1/3-1) ≤1 = 0.5+0.0555 L 0.222 (1/3-1) ≤ 4 = 2 + 0.222 B

1. A strip footing with a width of 3 m at a depth of 1.0 m is constructed on a 25 m thick sandy soil stratum. Given: y=18 kN/m³, the elastic modulus of the sandy soil is 8,500 kN/m², the gross pressure is 200 kN/m². Estimate the settlement of the footing after 10 years by using the strain influence factor method (Schmertmann et al. 1978) as outlined below. q=yD 920 B I, z (m) 0.1 Y I, Z₁ = 0.5B Z2=2B L/B=1 (Square) 9(1) =B Z₂ = 4B z 0.2 Iz (m) L/B ≥10 (Strip) Z2 Se = C₁C₂(-9) Iz Az I, at the middle I₂ Δε Layer of the layer Es Az E, no. 1 Az(1) Es(1) Iz(1) 1:0) - Δει C₁1 0.5: q 9-9 Es(1) time in years 2 Az(2) Es(2) Iz(2) C₂ =1+0.2 log 0.1 i Az(D) Es(0) 40 12(0) Izo = 0.1 0.0111 B 1 (1/3 - 1) ≤ 0.2 Iz(i) Azi Es(i) : Iz(n) Iz(n) n AZ(n) Es(n) Azn Es(n) Iz(m) 1, Az Z1 NB B Z2 = 0.5 +0.1 z(1) 55 (1/3-1) ≤1 = 0.5+0.0555 L 0.222 (1/3-1) ≤ 4 = 2 + 0.222 B

Structural Analysis
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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1. A strip footing with a width of 3 m at a depth of 1.0 m is constructed on a 25 m thick sandy soil stratum. Given: y=18 kN/m³, the elastic modulus of the sandy soil is 8,500 kN/m², the gross pressure is 200 kN/m². Estimate the settlement of the footing after 10 years by using the strain influence factor method (Schmertmann et al. 1978) as outlined below. q=yD 920 B I, z (m) 0.1 Y I, Z₁ = 0.5B Z2=2B L/B=1 (Square) 9(1) =B Z₂ = 4B z 0.2 Iz (m) L/B ≥10 (Strip) Z2 Se = C₁C₂(-9) Iz Az I, at the middle I₂ Δε Layer of the layer Es Az E, no. 1 Az(1) Es(1) Iz(1) 1:0) - Δει C₁1 0.5: q 9-9 Es(1) time in years 2 Az(2) Es(2) Iz(2) C₂ =1+0.2 log 0.1 i Az(D) Es(0) 40 12(0) Izo = 0.1 0.0111 B 1 (1/3 - 1) ≤ 0.2 Iz(i) Azi Es(i) : Iz(n) Iz(n) n AZ(n) Es(n) Azn Es(n) Iz(m) 1, Az Z1 NB B Z2 = 0.5 +0.1 z(1) 55 (1/3-1) ≤1 = 0.5+0.0555 L 0.222 (1/3-1) ≤ 4 = 2 + 0.222 B
Transcribed Image Text:1. A strip footing with a width of 3 m at a depth of 1.0 m is constructed on a 25 m thick sandy soil stratum. Given: y=18 kN/m³, the elastic modulus of the sandy soil is 8,500 kN/m², the gross pressure is 200 kN/m². Estimate the settlement of the footing after 10 years by using the strain influence factor method (Schmertmann et al. 1978) as outlined below. q=yD 920 B I, z (m) 0.1 Y I, Z₁ = 0.5B Z2=2B L/B=1 (Square) 9(1) =B Z₂ = 4B z 0.2 Iz (m) L/B ≥10 (Strip) Z2 Se = C₁C₂(-9) Iz Az I, at the middle I₂ Δε Layer of the layer Es Az E, no. 1 Az(1) Es(1) Iz(1) 1:0) - Δει C₁1 0.5: q 9-9 Es(1) time in years 2 Az(2) Es(2) Iz(2) C₂ =1+0.2 log 0.1 i Az(D) Es(0) 40 12(0) Izo = 0.1 0.0111 B 1 (1/3 - 1) ≤ 0.2 Iz(i) Azi Es(i) : Iz(n) Iz(n) n AZ(n) Es(n) Azn Es(n) Iz(m) 1, Az Z1 NB B Z2 = 0.5 +0.1 z(1) 55 (1/3-1) ≤1 = 0.5+0.0555 L 0.222 (1/3-1) ≤ 4 = 2 + 0.222 B
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