Q1. The opposite Iigure shows a system of filter consisting of two layers of soils. The soils have the following properties: Soil 1: Cross sectional area: A 0.25 m2, coefficient of permeability: k = 2x10* m/s and saturated unit weight: y, = 20 kN/m Soil 2: Cross sectional area: A 0.25 m2, coefficient of permeability: k2 = 6x10* m/s and saturated unit weight: y2 = 19 kN/m? Inflow tank 0.9 m 0.8 m Soil 2- 1.4 m Soil 1 0.6 m Datum 0.3 m (Not to scale) (a) Determine the expected amount of flow rate, Q in m'/s, passing through the system. (b) Find total head at point A. Point B is located in the middle of Soil 2, 0.7 m below the soil surface. What is the vertical effective stress at point B? (c)

Q1. The opposite Iigure shows a system of filter consisting of two layers of soils. The soils have the following properties: Soil 1: Cross sectional area: A 0.25 m2, coefficient of permeability: k = 2x10* m/s and saturated unit weight: y, = 20 kN/m Soil 2: Cross sectional area: A 0.25 m2, coefficient of permeability: k2 = 6x10* m/s and saturated unit weight: y2 = 19 kN/m? Inflow tank 0.9 m 0.8 m Soil 2- 1.4 m Soil 1 0.6 m Datum 0.3 m (Not to scale) (a) Determine the expected amount of flow rate, Q in m'/s, passing through the system. (b) Find total head at point A. Point B is located in the middle of Soil 2, 0.7 m below the soil surface. What is the vertical effective stress at point B? (c)

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter7: Permeability

Section: Chapter Questions

Problem 7.2P

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