A footing for a sign post is to be placed on the soil profile shown below. The structural loading is PDL = 45 kips and PLL = 10 kips. The sand and clay layers have the properties as shown below. The clay is the same material as tested in problem 1. Check the soil strength (i.e., bearing capacity) and settlement under the applied loading and evaluate the suitability of the proposed construction. Assume the footing diameter to be 6ft.
A footing for a sign post is to be placed on the soil profile shown below....
Q1: for the soil profile in the figure, the surcharge was replaced by a rigid square 2 m footing of 2 2m and loading of 200 kN/m from the N.G.L, after two at dept h of 2m 2m Sand months of surcharge application, estimate the total settlement of the footing, knowing that "q" of the surcharge is 250 kN/m average N of the sand layer is 30, the Poisson ratio in saturated soils is: 0.5, the modulus of elasticity of...
3. A soil profile shown below. The uniformly distributed load on the ground surface is Do. Estimate the primary settlement of the normally consolidated clay layer, given that H-6ft, H2 - 10 ft, Hz - 4ft For sand, Ydry = 113 lb/ft'Ysat = 188.7 lb/ft? For clay, Ysat - 186.4 lb/ft. e=0.85, LL = 55 Ao'-2,000 lb/ft? -0.0003 in /sec 140' Dry sand Satiiruted sand Primary Settlement, Sc of Normally Consolidated clay - If the clay above was overconsolidated, what...
In the figure below, the natural soil profile consists of sand
overlying clay overlying sand overlying bedrock. A
water table is present 1 m beneath the surface of the natural
ground. If 4 m of consistent fill material (γfill = 15
kN/m3) was placed on top of this soil profile that covered a
large area, determine:
(a) The consolidation settlement of the clay layer (using 4
equal layers in your calculation), and
(b) The time (in days) for this consolidation...
soil
Q4) From the figure and soil profile as below find the following: 1) the final consolidation for clay layer under the center of bridge pier as shown below. use the approximate method to calculate the increasing stress in soil. 2) the coefficient of volume compressibility (mv) of clay layer. mass=2x106 kg footing=10m x 8m y=16.62kN/m3 3m 2m 7m 10m Sand and graver Ysat.=19.8kN/m Clay Cc=0.33,w=30%, Gs=2.7, Ysat.=19.8kN/m3 sand and gravel 4m
A soil profile is shown below. The soil sample is taken from depth of 11m, a) Is it OC or NC soil? b) If it is loaded with A6= 28 t/m2 calculate the settlement of clay layer. For sand Ydry = 1.75 t/m and Ysat = 2.0 t/m3 For clay Xsat = 1.9 t/m3 6'o+A6 SC 6'o+A6 CsH Сен -log 1+ Sc log 087645) 610 1+eo 610 Sc CH 1+0 -log 6) + CCH 1+ -log (9729) 610 Sand 5m...
soil mechanics
Q4) From the figure and soil profile as below find the following: 1) the final consolidation for clay layer under the center of bridge pier as shown below. use the approximate method to calculate the increasing stress in soil. 2) the coefficient of volume compressibility (mv) of clay layer. mass= 2*106 kg footing =10m x 8m 3m y=16.62kN/m3 2m They WT 7m 10m Sand and graver Ysat=19.8kN/m3 Clay Cc=0.33,w=30%,Gs=2.7, Ysat=19.8kN/m3 sand and gravel 4m
Q1/ From the figure and soil profile as below find the following : 1) the final consolidation for clay layer under the center of bridge pier as shown below. use the approximate method to calculate the increasing stress in soil. 2) the coefficient of volume compressibility (my) of clay layer mass=2x106 kg footing =10m x 8m y=16.62kN/m3 Зm 2m Ty WT 7m 10m Sand and gravel Ysat=19.8kN/m3 Clay Cc=0.33,w=30%,Gs=2.7, Ysat.=19.8kN/m3 sand and gravel 4m
Figure P3 shows the soil profile at a site for a proposed office building. It is expected that the vertical stress at the top of the clay will increase by 150 kPa and at the bottom by 90 kPa. Assurning a linear stress distribution within the clay: (a) Calculate the consolidation settlement. You should divide the clay into five layers, compute the settlement for each layer, and then find the total settlement. Assume G = 2.7 for both sand and...
For the soil profile shown below, calculate the final settlement due to the placement of the sand fill. Estimate the excess pore pressure at a depth of 1.5 m into the third clay layer 1.5 years after the fill is placed. Assume the coefficient of consolidation is Cv = 1.8 m2/yr. Fill y = 16.0 kN/m² (3m thick) Clay 1 (3m thick) Sand (0.5m thick) Clay 2 (2m thick) Sand (0.5m thick) Clay 3 (4m thick) Sand (0.5m thick) eo...
help please
A square footing is founded at 3-ft depth below ground surface as shown in Fig1, The factored axial load acting on the square footing is 140 kips, Determine the size of the footing (B x B) if the Factor of Safety (F.S.) is 3.0. Ground surface ЗА B-? Silty Sand Fig.1 A 68-ft long pre-stressed concrete pile with square cross section (14 inch) is driven into the soil profile shown in Fig. 2. Compute the ultimate compressive load...