dense silt layer has the following properties: e =0.406 D10= 10.1 um Capillary constant = 0.209 sq.cm Free ground water level is 8m below the ground surface. 1.) Find the height of capillary rise in the siltin meters. 2) Find the vertical effective stress at 6m depth. Assume ys = 26.51 kn/m3 and the soil above capillary action rise and ground surface is partially saturated at 79%.

dense silt layer has the following properties: e =0.406 D10= 10.1 um Capillary constant = 0.209 sq.cm Free ground water level is 8m below the ground surface. 1.) Find the height of capillary rise in the siltin meters. 2) Find the vertical effective stress at 6m depth. Assume ys = 26.51 kn/m3 and the soil above capillary action rise and ground surface is partially saturated at 79%.

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter9: In Situ Stresses

Section: Chapter Questions

Problem 9.4P

See similar textbooks

Similar questions

a dense silt layer has the following properties: void ratio = 0.50, effective diameter d10 = 10 um, capillary constant c = 0.20 cm2. free ground water level is 8.0 m below the ground surface. find the vertical effective stress in kpa at 5m depth. assume unit weight of solids = 26.5 kn/m3 and that the soil = 26.5 kn/m3 and that the soil above the capillary action rise and ground surfaces is partially saturated at 50% from the problem above, find the vertical effective stress at 10m depth. assume unit weight of solids=26.5kN/m3 and that the solid above the capillary action rise and ground surface is partially saturated at 50%.
A dense silt layer has the following properties:Void ratio = 0.30Effecive diameter = 10umCapillary constant = 0.20 cm2Free ground water level is 8 m below the ground surface.a. Find the height of the capillary rise in the silt.b. Find the vertical effective stress in kPa at a depth of 5 m. Assume soil unit weight of 26.5 kN/m3 and that of soil above the capillary action rise and round surface is partially saturated at 50 %.c. Find the vertical effective stress in kPa at a depth of 10 m. Assume soil unit weight of 26.5 kN/m3 and that of soil above the capillary action rise and round surface is partially saturated at 50 %.......
A dense silt has the following properties: Void ratio (e) = 0.40, SpecificGravity (Gs) = 2.70, Effective diameter ??? = ????−??, Capillary constant (C) =?. ?? ???. Free groound water level is 8.0 m below the ground surface. a. Find the height of capillary rise in the silt.b. Find the vertical effective stress in kPa at 5m depth. Assume that the soil abovethe capillary zone or capillary action rise to be dry soil and the soil within thecapillary action be partially saturated (degree of saturation, S) at 50%.c. Find the vertical effective stress at 10m depth. Assume that the soil above thecapillary zone or capillary action rise to be dry soil and the soil within the capillaryaction be partially saturated (degree of saturation, S) at 50%
A dense silt has the following properties: Void ratio (e) = 0.40, SpecificGravity (Gs) = 2.70, Effective diameter d10 = 1x10^-6 m, Capillary constant (C) = 0.20 cm^2. Free ground water level is 8.0 m below the ground surface. a. Find the height of capillary rise in the silt. b. Find the vertical effective stress in kPa at 5m depth. Assume that the soil abovethe capillary zone or capillary action rise to be dry soil and the soil within thecapillary action be partially saturated (degree of saturation, S) at 50%. c. Find the vertical effective stress at 10m depth. Assume that the soil above thecapillary zone or capillary action rise to be dry soil and the soil within the capillaryaction be partially saturated (degree of saturation, S) at 50%.
A dense silt layer has the following properties: void ratio e = 0.50, effective Diameter D10 = 10 μm, capillary constant C = 0.20 cm2. The free groundwater level is 8m below the ground surface. Assume unit weight of solids y= 26.50kN/m3. Find the vertical effective stress at 10m depth. Assume that the soil above the capillary zone is partially saturated at 50%.
A clay layer 3.66 m thick rests beneath a deposit of submerged sand of 7.92 m thick. The top of the sand is located 3.05 m below the surface of a lake. The saturated unit weight of the sand is 19.62 kN/m3 and of the clay is 18.36 kN/m3. Compute (a) the total pressure (b) the pore water pressure and (c) the effective pressure all at the mid height of the clay layer. Draw the figure
A 4-meter clay layer (e = 0.89, Gs = 2.69, Cc = 0.349) is overlain with 4-meter-thick sand layer (e = 0.83, Gs = 2.51). The water table is at the interface of the sand and clay layer. If a 2-meter-thick land fill (Y = 17.36 kN/m^3) is placed over the existing ground surface, compute the consolidation settlement (in mm) of the clay layer. Hint: use the land fill's resulting pressure on the ground surface as the stress increase.
A dense silt layer has the following properties: e=0.30, D10=10µm and capillary constant = 0.20cm2 Free ground water level is 8m below the ground surface. Determine the vertical effective stress (kPa) at 5m depth (point A). Assume unit weight of solids = 26.5 KN/m3 and that the soil above the capillary rise and ground surface is partially saturated at 50%.
A thin layer of silt exists at a depth of 18 m below the surface of the ground. The soil above this level has an average dry unit weight of 15.1 kN/m3 and an average water content of 36%. The water table is almost at the ground surface level. Tests on undisturbed samples of the silt indicate the following values: cu = 45 kN/m2, ϕu = 18°, c' = 36 kN/m2 and ϕ' = 27°. Estimate the shearing resistance of the silt on a horizontal plane when (a) the shear stress builds up rapidly, and (b) the shear stress builds up slowly.
A soil profile is shown in Figure Q3(b)(i). The groundwater level is located on the ground surface. The sand layer is under artesian pressure where the excess pore water pressure is 40 kN/m^2. (i) Calculate the total vertical stress, pore water pressure and effective vertical stress at the base of each layer. (ii)Determine the increment of the effective stress at the base of sand layer if the 1.5m height fill will be imposed on the ground surface. Note that, the density of the fill material is 1750 kg/m^3. (iii) The excavation will be made in the clay layer for the basement construction. Evaluate the stability of the soil from boiling or quick condition. The depth of the excavation is shown in Figure Q3(b)(ii). (iv)Propose the maximum depth of cut that can be made to avoid boiling or quick condition.
A soil profile consists of; layer 1, 10m sand layer and layer 2, 3m clay layer. The ground water table is located 4m below ground surface. For sand, γdry=2.00 T/m2 (tons/m2), γsat=2.25 T/m2, and for clay layer, LL=46%, water content=42% and Gs=2.76. A uniform vertical stress, ΔP=20T/m2 is applied at the ground surface. Determine, a) Effective unit weight of clay, b) overburden pressure at the mid point of the clay layer, c) primary consolidation settlement
20 A 4-meter clay layer (e = 0.92, Gs = 2.89, Cc = 0.315) is overlain with 4-meter-thick sand layer (e = 0.86, G = 2.63). The water table is at the interface of the sand and clay layer. If a 3-meter-thick land fill (γ = 17.21 kN/m3) is placed over the existing ground surface, compute the consolidation settlement (in mm.) of the clay layer. Hint: Use the land fill's resulting pressure on the ground surface as the stress increase. Round off to two decimal places.