a sand layer 9 meters highoverlies a clay layer that is 5 meters high. ground water table is at the onterface of sand and clay. the unit weight of sand is 17.47kN/m^3, saturated unit weight of clay is 19.84kN/m^3, void ratio of clay is 0.52, LL=43. Determine the settlement in mm of the consolidating layer for a stress increase of 54.76 kPa.

a sand layer 9 meters highoverlies a clay layer that is 5 meters high. ground water table is at the onterface of sand and clay. the unit weight of sand is 17.47kN/m^3, saturated unit weight of clay is 19.84kN/m^3, void ratio of clay is 0.52, LL=43. Determine the settlement in mm of the consolidating layer for a stress increase of 54.76 kPa.

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter8: Stresses In A Soil Mass

Section: Chapter Questions

Problem 8.11P

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31 A sand layer 7 meters high overlies a clay layer that is 8 meters high. Ground water table is at the interface of sand and clay. The unit weight of sand is 17.98 kN/m3, saturated unit weight of clay is 19.74 kN/m3, void ratio of clay is 0.78, LL = 42. Determine the settlement (in mm) of the consolidating layer for a stress increase of 52.28 kPa.
A sand layer 8 meters high overlies a clay layer that is 7 meters high. Ground water table is at the interface of sand and clay. The unit weight of sand is 16.92 kN/m3, saturated unit weight of clay is 19.23 kN/m3, void ratio of clay is 0.59, LL = 42. Determine the settlement (in mm) of the consolidating layer for a stress increase of 55.28 kPa. Round off to three decimals.
36.) A sand layer 6 meters high overlies a clay layer that is 5 meters high. Ground water table is at the interface of sand and clay. The unit weight of sand is 17.02 kN/m3, saturated unit weight of clay is 19.01 kN/m3, void ratio of clay is 0.59, LL = 42. Determine the settlement (in mm) of the consolidating layer for a stress increase of 51.11 kPa. Round off to three decimal places.
Question 28 A sand layer 5 meters high overlies a clay layer that is 6 meters high. Ground water table is at the interface of sand and clay. The unit weight of sand is 17.19 kN/m3, saturated unit weight of clay is 19.9 kN/m3, void ratio of clay is 0.53, LL = 43. Determine the settlement (in mm) of the consolidating layer for a stress increase of 52.7 kPa. Round off to three decimal places.
A soil stratum has two layers a 4m-thick dry sand underlain by a 5m–thick saturated sand. Dry unitweight and saturated unit weight of sand are respectively 16.21 KN/m3 and 20.88 KN/m3. a. What is the total stress at the bottom of the soil stratum?
A soil profile consists of a sand layer underlain by a clay layer, as shown. If the degree of saturation of the sand above water table was 50%. Saturated and dry unit weight of sand are 21.2 kN/m^3 and 18.22 kN/m^3 respectively. The saturated unit weight of clay is 18 kN/m3. Determine the total stress, pore pressure and effective stress at point A,B,C.
A submerged clay layer is 15 m thick. Its water content is 54%. The density of the soil particles is 2.78.What is the effective vertical stress(in kPa) due to the weight of soil at the base of the layer?
17 A soil profile consists of sand (7-m thick) which overlies a layer of clay (6-m thick). Ground water table is located at the interface of the sand and clay. The effective stress at the bottom of the clay layer was determined. If the water table rises to the top of the ground surface, what is the change in the effective stress (in kPa) at the bottom of the clay layer? For sand layer: Void Ratio = 0.78, Specific gravity = 2.61, Degree of Saturation = 0.6 For clay layer: Void Ratio = 0.84, Specific gravity = 2.87 Round off to two decimal places.
A soil profile consists of sand (5-m thick) which overlies a layer of clay (4-m thick). Ground water table is located at the interface of the sand and clay. The effective stress at the bottom of the clay layer was determined. If the water table rises to the top of the ground surface, what is the change in the effective stress (in kPa) at the bottom of the clay layer? For sand layer: Void Ratio = 0.82, Specific gravity = 2.75, Degree of Saturation = 0.76 For clay layer: Void Ratio = 1.09, Specific gravity = 2.76
Effective Stresses in Soil Problem 4. A 20m thick submerged saturated clay layer has water content of 57%. The specific gravity of the solid particle is 2.84. 1.Determine the density of the clay in kg/m³. 2.Determine the total vertical stress at the bottom of the clay layer in kpa. 3.Determine the effective vertical stress at the bottom of the clay layer in kpa.
Question 20 A soil profile consists of sand (5-m thick) which overlies a layer of clay (9-m thick). Ground water table is located at the interface of the sand and clay. The effective stress at the bottom of the clay layer was determined. If the water table rises to the top of the ground surface, what is the change in the effective stress (in kPa) at the bottom of the clay layer? For sand layer: Void Ratio = 0.82, Specific gravity = 2.68, Degree of Saturation = 0.6 For clay layer: Void Ratio = 0.92, Specific gravity = 2.86 Round off to two decimal places.
a) Determine the effective stress at the bottom of the layer (Ans. 97.68 kPa) b) If the water table rises to the top of the ground surface, what is the change in the effective stress at the bottom of the clay layer. (Ans. 26.32 kPa) c) How many meters must the ground water table rise to decrease the effective stress by 14 kPa at the bottom of the clay. (Ans. 2.13 m)