QI: Determine the distribution of total stress, pore water pressure and effective stress for the soil profile shown in the figure. NGL yl dry Hw H1 yl Saturated y1dry=15.60 y1saturated=17.50 y2saturated%3D18.55 H1=12.00 H2=64.00 Y2 Saturated H2 Hw=8.75

QI: Determine the distribution of total stress, pore water pressure and effective stress for the soil profile shown in the figure. NGL yl dry Hw H1 yl Saturated y1dry=15.60 y1saturated=17.50 y2saturated%3D18.55 H1=12.00 H2=64.00 Y2 Saturated H2 Hw=8.75

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 11.15P

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Concept explainers

Calculation of Settlement

The vertical displacement of the structural foundation due to the loading from the superstructure is known as settlement. It is due to the reduction of air voids present in the soil. The amount of vertical displacement depends on the bearing capacity of the soil on which the foundation is laid. The effect of the settlement depends on the magnitude of settlement, uniformity, and the structural design of the structure. The maximum allowable settlement for residential and office buildings should be less than 18 mm, for industrial buildings, it is 38 mm and for commercial buildings, it is 25 mm.

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Transcribed Image Text:QI: Determine the distribution of total stress, pore water pressure and effective stress for the soil profile shown in the figure. NGL Hw yl dry H1 yl Saturated y1dry=15.60 y1saturated=17.50 y2saturated=18.55 H1=12.00 H2=64.00 Y2 Saturated H2 Hw=8.75

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Ql: Determine the distribution of total stress, pore water pressure and effective stress for the soil profile shown in the figure. Hw NGL yl dry H1 y1 Saturated Y2 Saturated H2
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Calculate the total stress, pore water pressure and effective stress at point A, D, and C. If the groundwater table drops 1 m, calculate the effective stress at point C. Will the effective stress increase or decrease? 6m Dry sand G₂=2.68 e = 0.55 Groundwater table B Saturated sand 13m G₁ = 2.75 e = 0.85 76
3.15 In a site consisting of normally consolidated clean sands, the water table is at 10 ft depth. The average unit weight of the sand above and below the water table is 111.5 lb/ft3 and 125.0 lb/ft3, respectively. At a 25 ft depth, Nso was reported as 26. Determine the following: a. (N160 using Liao and Whitman's (1986) equation for CN [Eq. (3.13)] b. D, using Skempton's (1986) correlation [Eq. (3.28)] c. Friction angle using Schmertmann's (1975) correlation [Eq. (3.30)] d. Modulus of elasticity using Kulhawy and Mayne's (1990) correlation [Eq. (3.32)]