1) Compute the total load, Q, in kips, using the Hansen equations, for a footing 4...
1) Compute the total load, Q, in kips, using the Hansen equations, for a footing 4 ft wide by 8 ft long founded on a stratum of sand. The vertical load is uniformly distributed; there is no horizontal load. The value of f D is 3.5 ft, the water table is at the base of the footing, and the friction angle from the triaxial test is 30º. For the sand above the base of the footing, the water content is 20%, and the unit weight γ is 120 pcf. Compute a value of submerged unit weight γ ' if needed, assuming specific gravity of the particles of sand to be 2.67.
2) The same footing in Problem 1 now rests on over-consolidated clay at a depth of 3.5 ft and the footing rests on the clay. What would be the undrained shear strength of the clay if the foundation were to have the same capacity Q found in Problem 1. The clay also has a unit weight of 120 pcf.
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1) Compute the total load, Q, in kips, using the Hansen
equations, for a footing 4...
A Compute the total load, Qq, in kips, using the Hansen equations, for a footing 4...
A Compute the total load, Qq, in kips, using the Hansen equations, for a footing 4 ft wide by 8 ft long founded on a stratum of sand. The vertical load is uniformly distributed; there is no horizontal load. The value of Dƒ is 3.5 ft, the water table is at the base of the footing, and the friction angle from the triaxial test is 30. For the sand above the base of the footing, the water content is 20%,...
help please A square footing is founded at 3-ft depth below ground surface as shown in...
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...
1. Design a wall footing for the following conditions. Service dead load is 6 kips/ft, service...
1. Design a wall footing for the following conditions. Service dead load is 6 kips/ft, service live load is 8 kips/ft. Soil unit weight is 120 lb/ft?. Allowable soil pressure, qa is 4000 psf. The base of the footing is placed 3 ft below the ground surface. Wall is 12 in, thick. Geotechnical analyses have determined the width to be 4 ft. fe' = 3500 psi normal weight concrete, and fy = 60 ksi. Note: you don't need to design...
The total settlement for clay being the elastic settlement plus the primary consolidation settlement. 2. A...
The total settlement for clay being the elastic settlement
plus the primary consolidation settlement.
2. A foundation carrying 150 kips needs to be designed in New Jersey (frost depth 3 ft) for a FOS of 3. The founding soil is deep normally consolidated clay deposit with average Su value of 1100 psf, and saturated unit weight of 130 pcf and a moist unit weight of 110 pcf with water table at 3 ft depth. The laboratory tests performed on undisturbed...
a 39 in wide ,24 inch deep continuous footing supports a wall load of 12 kips/ft....
a 39 in wide ,24 inch deep continuous footing supports a wall load of 12 kips/ft. this footing underlain by pure medium dense sand with D' = 31° and γ = 122 Lb/ft3. The ground water table is at a depth of 4 ft below the ground surface. Determine the allowable bearing capacity of this foundation using a factor of safety FS=2.5
Geotechnical square foundation design 1. A square footing is subjected to a vertical load of 50,000...
Geotechnical square foundation design
1. A square footing is subjected to a vertical load of 50,000 lbs and a moment of 25,000 lb-ft. The depth of the foundation is 4 ft. The water table is at the base of the footing. The soil above the base of the footing has y-100 pcf and a friction angle of 30°. The soil below the base of the footing has a Ysat 120 pcf, a friction angle of 20° and c-100 psf. Find...
Inclined load on the vertical axes 27 degree. The load is 300 kN/m2 applied to square...
Inclined load on the vertical axes 27 degree. The load is 300 kN/m2 applied to square footing over silty sand with capillarity. The water table located at the base of foot. The saturated unit weight above the base is 20 kN/m3, and below the base (G=2.65 and water content =0.471). Undrained shear strength is equal to 120 kN/m2. The factor of safety is 3. At the end of construction, the factor dc is equal to
Homework #10 A soil exploration result of a site is shown in the following figure. A...
Homework #10 A soil exploration result of a site is shown in the following figure. A building is to be constructed at that site. First, it has been proposed to raise the elevation of the ground by filling the site with 10 ft thick compacted soil at an area of 25 ft x 25 ft. The unit weight of the compacted moist soil was 120 pcf. The foundation of proposed building was constructed at the center of the compaction area...
A) Use phase diagrams to derive the relationship between; S, Co, co, e, P and P° [5] b) A footing...
a) Use phase diagrams to derive the relationship between; S, Co, co, e, P and P° [5] b) A footing is to be located 5ft below ground level, as shown in Figure 2 below. The base of the square footing is 8ft by 8ft and it exerts a total load of 240 tons, which includes column load, weight of footing, and weight of soil surcharge on the footing. Find the total expected primary consolidation settlement for the clay layer 115)...
Foundation Inclined load on the vertical axes 27 degree. The load is 300 kN/m2 applied to...
Foundation
Inclined load on the vertical axes 27 degree. The load is 300 kN/m2 applied to square footing over silty sand with capillarity. The water table located at the base of foot. The saturated unit weight above the base is 20 kN/m3, and below the base (G=265 and water content 0.471). Undrained shear strength is equal to 120 kN/m2. The factor of safety is 3. At the end of construction, the factor de is equal to Select one: a. 1.2...
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...
1. Design a wall footing for the following conditions. Service dead load is 6 kips/ft, service live load is 8 kips/ft. Soil unit weight is 120 lb/ft?. Allowable soil pressure, qa is 4000 psf. The base of the footing is placed 3 ft below the ground surface. Wall is 12 in, thick. Geotechnical analyses have determined the width to be 4 ft. fe' = 3500 psi normal weight concrete, and fy = 60 ksi. Note: you don't need to design...
The total settlement for clay being the elastic settlement
plus the primary consolidation settlement.
2. A foundation carrying 150 kips needs to be designed in New Jersey (frost depth 3 ft) for a FOS of 3. The founding soil is deep normally consolidated clay deposit with average Su value of 1100 psf, and saturated unit weight of 130 pcf and a moist unit weight of 110 pcf with water table at 3 ft depth. The laboratory tests performed on undisturbed...
Geotechnical square foundation design
1. A square footing is subjected to a vertical load of 50,000 lbs and a moment of 25,000 lb-ft. The depth of the foundation is 4 ft. The water table is at the base of the footing. The soil above the base of the footing has y-100 pcf and a friction angle of 30°. The soil below the base of the footing has a Ysat 120 pcf, a friction angle of 20° and c-100 psf. Find...
Inclined load on the vertical axes 27 degree. The load is 300 kN/m2 applied to square footing over silty sand with capillarity. The water table located at the base of foot. The saturated unit weight above the base is 20 kN/m3, and below the base (G=2.65 and water content =0.471). Undrained shear strength is equal to 120 kN/m2. The factor of safety is 3. At the end of construction, the factor dc is equal to
Homework #10 A soil exploration result of a site is shown in the following figure. A building is to be constructed at that site. First, it has been proposed to raise the elevation of the ground by filling the site with 10 ft thick compacted soil at an area of 25 ft x 25 ft. The unit weight of the compacted moist soil was 120 pcf. The foundation of proposed building was constructed at the center of the compaction area...
a) Use phase diagrams to derive the relationship between; S, Co, co, e, P and P° [5] b) A footing is to be located 5ft below ground level, as shown in Figure 2 below. The base of the square footing is 8ft by 8ft and it exerts a total load of 240 tons, which includes column load, weight of footing, and weight of soil surcharge on the footing. Find the total expected primary consolidation settlement for the clay layer 115)...
Foundation
Inclined load on the vertical axes 27 degree. The load is 300 kN/m2 applied to square footing over silty sand with capillarity. The water table located at the base of foot. The saturated unit weight above the base is 20 kN/m3, and below the base (G=265 and water content 0.471). Undrained shear strength is equal to 120 kN/m2. The factor of safety is 3. At the end of construction, the factor de is equal to Select one: a. 1.2...
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