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The lower sand layer in the soil profile shown below is in an artesian condition. Calculate: a) The effective stress (6) at the top and base of the clay layer. b) The height of water in the piezometer for a = 0 at the base of the clay layer. c) The maximum depth (Z) of the proposed excavation (Figure Q1 (b)). (Assume Z>2 m). Tan 4.0 m [[m 2.0 m Ydry-16.6 kN/m² Sand Ground water table Y.. W.T. Sand 2.0 m Sand Yu-20.6 kN/m² тор 4.0 m You 20.6 kN/m Clay base 720.5 kN/m² Sand Clay Sand 24

The lower sand layer in the soil profile shown below is in an artesian condition. Calculate: a) The effective stress (6) at the top and base of the clay layer. b) The height of water in the piezometer for a = 0 at the base of the clay layer. c) The maximum depth (Z) of the proposed excavation (Figure Q1 (b)). (Assume Z>2 m). Tan 4.0 m [[m 2.0 m Ydry-16.6 kN/m² Sand Ground water table Y.. W.T. Sand 2.0 m Sand Yu-20.6 kN/m² тор 4.0 m You 20.6 kN/m Clay base 720.5 kN/m² Sand Clay Sand 24

Principles of Geotechnical Engineering (MindTap Course List)
Principles of Geotechnical Engineering (MindTap Course List)
9th Edition
ISBN:9781305970939
Author:Braja M. Das, Khaled Sobhan
Publisher:Braja M. Das, Khaled Sobhan
Chapter17: Subsoil Exploration
Section: Chapter Questions
Problem 17.4P
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O The lower sand layer in the soil profile shown below is in an artesian condition. Calculate: a) The effective stress (6) at the top and base of the clay layer. b) The height of water in the piezometer for = 0 at the base of the clay layer. c) The maximum depth (Z) of the proposed excavation (Figure Q1 (b)). (Assume Z>2 m). Lawr 4.0 m [2m 2.0 m dry -16.6 kN/m² Sand Ground water table Z Y.. W.T. 2.0 m Sand Sand 720.6 kN/m² TOP 4.0 m You 20.6 kN/m² Clay base Test 20.5 kN/m² Sand Ban Clay Send ħ 24
Transcribed Image Text:O The lower sand layer in the soil profile shown below is in an artesian condition. Calculate: a) The effective stress (6) at the top and base of the clay layer. b) The height of water in the piezometer for = 0 at the base of the clay layer. c) The maximum depth (Z) of the proposed excavation (Figure Q1 (b)). (Assume Z>2 m). Lawr 4.0 m [2m 2.0 m dry -16.6 kN/m² Sand Ground water table Z Y.. W.T. 2.0 m Sand Sand 720.6 kN/m² TOP 4.0 m You 20.6 kN/m² Clay base Test 20.5 kN/m² Sand Ban Clay Send ħ 24
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