Question B-1 : A water tank with 30 m x 10 m and a weight of 6000 kN was built above a 2 m thick sand layer (Gs = 2.68, n = 0.433, w = 20%). The sand is underlain by 5 m of clayey sand (Gs = 2.71, e = 0.65, d10= 0.02 mm, Sr = 55%, C= 40 mm2), 4 m of clay (Unit weight saturated = 22 kN/m3) and the impermeable bedrock. The groundwater table is at the surface of the clay layer. The capillary rise has occurred in clayey sand. The soil unit weight for sand and clayey sand, respectively,, are Sand Clayey sand A 24.23 kN/m3 18.59 kN/m3 B 17.88 kN/m3 18.24 kN/m3 с 1823 kN/m3 1859 kN/m3 D 2469 kN/m3 228.6 kN/m3

Fundamentals of Geotechnical Engineering (MindTap Course List)
5th Edition
ISBN:9781305635180
Author:Braja M. Das, Nagaratnam Sivakugan
Publisher:Braja M. Das, Nagaratnam Sivakugan
Chapter7: Seepage
Section: Chapter Questions
Problem 7.1P
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By referring to the question B-1, the capillary height, hc for the clayey
sand is:
O 0.07 m
O 5.59 m
O 3.07 m
O 2.30 m
Transcribed Image Text:By referring to the question B-1, the capillary height, hc for the clayey sand is: O 0.07 m O 5.59 m O 3.07 m O 2.30 m
Question B-1 : A water tank with 30 m x 10 m and a weight of 6000 kN
was built above a 2 m thick sand layer (Gs = 2.68, n = 0.433, w = 20%). The
sand is underlain by 5 m of clayey sand (Gs = 2.71, e = 0.65, d10= 0.02 mm,
Sr = 55%, C= 40 mm2), 4 m of clay (Unit weight saturated = 22 kN/m3) and
the impermeable bedrock. The groundwater table is at the surface of the
clay layer. The capillary rise has occurred in clayey sand. The soil unit
weight for sand and clayey sand, respectively,, are
Sand
Clayey sand
A
24.23 kN/m3
18.59 kN/m3
B
17.88 kN/m3
18.24 kN/m3
с
1823 kN/m3
1859 kN/m3
D
2469 kN/m3
228.6 kN/m3
A
B
O D
Transcribed Image Text:Question B-1 : A water tank with 30 m x 10 m and a weight of 6000 kN was built above a 2 m thick sand layer (Gs = 2.68, n = 0.433, w = 20%). The sand is underlain by 5 m of clayey sand (Gs = 2.71, e = 0.65, d10= 0.02 mm, Sr = 55%, C= 40 mm2), 4 m of clay (Unit weight saturated = 22 kN/m3) and the impermeable bedrock. The groundwater table is at the surface of the clay layer. The capillary rise has occurred in clayey sand. The soil unit weight for sand and clayey sand, respectively,, are Sand Clayey sand A 24.23 kN/m3 18.59 kN/m3 B 17.88 kN/m3 18.24 kN/m3 с 1823 kN/m3 1859 kN/m3 D 2469 kN/m3 228.6 kN/m3 A B O D
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