Situation 5: 12. 13. 14. 15. An embankment for a highway 30 m wide and 1.3 m in compacted thickness is to be constructed from a sandy soil trucked from a borrow pit. The water content of the sandy soil in the borrow pit is 17% and its void ratio is 0.75. The specification requires the embankment to be compacted to a dry unit weight of 19 kN/m³. The length of embankment is 3 km. Use G₂ = 2.7. Compute the volume of borrow material required. Solve the total cost of fill if the earth fill from borrow site costs P200/m³. Calculate the volume of borrow material required if the specification requires a void ratio of 0.20. The moist unit weight of 0.00283 m³ of soil is 65 N. The water content is 13% and the specific gravity is 2.73. Solve the volume occupied by the water. The saturated unit weight and the water content in the field are found to be 18.55 kN/m³ and 33%, respectively. Determine the specific gravity of the soil solids.

Situation 5: 12. 13. 14. 15. An embankment for a highway 30 m wide and 1.3 m in compacted thickness is to be constructed from a sandy soil trucked from a borrow pit. The water content of the sandy soil in the borrow pit is 17% and its void ratio is 0.75. The specification requires the embankment to be compacted to a dry unit weight of 19 kN/m³. The length of embankment is 3 km. Use G₂ = 2.7. Compute the volume of borrow material required. Solve the total cost of fill if the earth fill from borrow site costs P200/m³. Calculate the volume of borrow material required if the specification requires a void ratio of 0.20. The moist unit weight of 0.00283 m³ of soil is 65 N. The water content is 13% and the specific gravity is 2.73. Solve the volume occupied by the water. The saturated unit weight and the water content in the field are found to be 18.55 kN/m³ and 33%, respectively. Determine the specific gravity of the soil solids.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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The embankment for a highway 5097 ft long, 104 ft wide and 6 ft in compacted thickness is to be constructed from a sandy soil trucked from a borrow pit. The water content of the sandy soil in the borrow pit is 6.748% and its porosity is 0.422. The specification requires the embankment be compacted to a dry unit weight of 122.874 lb/ft3. The specific gravity is 2.588. Determine the following: a. Total weight of the soil solids, kips. b. Total volume of the soil required from the borrow pit, ft3. c. Weight of water to be added per foot length of the embankment to reach 10% moisture content, lb.Round off answers to three decimal places.
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An embankment for a highway 30 m wide and 1.5 m in compacted thickness is to be constructed from sandy soil trucked from a borrow pit. The water content of the sandy soil in a borrow pit is 15% and its void ratio is 0.69. The swell index is 1.2. The specification requires the embankment to be compacted to a dry unit weight of 18kN/m^3. Determine, for a 1-km length of embankment, the following;(d) Volume of the borrow pit material required considering swell. (e) The number of truckloads of sandy soil required for the construction. The full capacity of each truck is 22.2m3, and local government regulations require a maximum capacity of 90%. (f) The weight of dry soil in one truckload.
A flow net for flow around a single row of sheet piles in a permeable soil layer is shown in Figure below with a scale as shown. Given that kx = kz=k = 4 x 10-3 cm/sec, determine How high (above the ground surface) the water will rise if piezometers are placed at points a and b The total rate of seepage through the permeable layer per unit length The approximate average hydraulic gradient at c factor of safety against piping x=1.6 y=2.8
An embankment for a highway 30 m wide and 1.5 m in compacted thickness is to be constructed from sandy soil trucked from a borrow pit. The water content of the sandy soil in a borrow pit is 15% and its void ratio is 0.69. The swell index is 1.2. The specification requires the embankment to be compacted to a dry unit weight of 18kN/m^3. Determine, for a 1-km length of embankment, the ff; (g) The weight of water per truckload of sandy soil. (h) The degree of saturation of the sandy soil in situ. The dry density of sand with a porosity of 0.387 is 1600 kg/m3. Find the following; (i) The void ratio of the soil. (j) The specific gravity of the soil solids.
Find the seepage velocity through soil 1 if the average velocity is 0.0073 meters per second. Use 3 decimal places. H1 = 1.25 m n1 = 32%H2 = 2.51 m n2 = 22% H3 = 2.51 m n3 = 28%
Refer to Figure 2. Embankments are generally constructed in several layers that are compacted according to geotechnical specifications.layers that are compacted according to geotechnical specifications. The thickness of eachof each layer is 3ft and should have a dry unit weight of 118 lb/ft3 .. It is known that theThe soil used in the embankment has a wet unit weight of 111 lb/ft3, moisture contentmoisture content of 23%, and Gs = 2.67. Complete the following tasks:(a) Determine the wet weight of the soil required to construct the first layer.(closest to the foundation soil) per foot (ft) of the embankment.b) On the day of construction there was a heavy rain that caused the soil used to reach a nearly saturated condition.used to reach a near saturated condition. Recalculate the wet weightwet weight of soil required to construct the first layer.