PROBLEM No. 3Weight-Volume Relationships .The undisturbed soil at a borrow pit has a bulk unit weight of 19.1 kN/m³ and water content of9.5%. The soil from this borrow will be used to construct a compacted fill with a finished volume of42,000 m3. The soil is excavated by machinery and placed in trucks, each with a capacity of 4.50 m³.When loaded to the full capacity, each load of soil weighs 67.5 kN.at the borrow pitin the truckat the fillBorrow pit: w = 9.5%,Ym=19.1 kN/mTruck: w 9.5%,V = 4.5 m; M.= 67.5 kNCompacted fill: w 15.0%,V = 42000 m3; Y 17.1 kN/m2In the construction process, the trucks dump the soil at the site, then the soil is spread and brokenup. Water is then sprinkled to bring the water content to 15%. Finally, the soil is compacted to a dryunit weight of 17.1 kN/ m³.Assuming each load is to the full capacity, how many truckloads are required to construct thefill? (Hint: Find the weight of soil solids in each truck loads and at the fill.)What would be the volume of the pit in the borrow area?How much water (in kN) should be added to a truckload?а.b.С.

Name: PROBLEM No. 3Weight-Volume Relationships .The undisturbed soil at a b
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Description: PROBLEM No. 3Weight-Volume Relationships .The undisturbed soil at a borrow pit has a bulk unit weight of 19.1 kN/m³ and water content of9.5%. The soil from this borrow will be used to construct a compacted fill with a finished volume of42,000 m3. Th

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Weight-Volume Relationships . The undisturbed soil at a borrow pit has a bulk unit weight of 19.1 kN/m³ and water content of 9.5%. The soil from this borrow will be used to construct a compacted fill with a finished volume of 42,000 m³. The soil is excavated by machinery and placed in trucks, each with a capacity of 4.50 m3. When loaded to the full capacity, each load of soil weighs 67.5 kN. at the borrow pit in the truck at the fill Borrow pit: w = 9.5%, Y = 19.1 kN/m Truck: w 9.5%, V = 4.5 ma; M.= 67.5 kN Compacted fill: w 15.0%, V = 42000 m3; y= 17.1 kN/m In the construction process, the trucks dump the soil at the site, then the soil is spread and broken up. Water is then sprinkled to bring the water content to 15%. Finally, the soil is compacted to a dry unit weight of 17.1 kN/ m³. Assuming each load is to the full capacity, how many truckloads are required to construct the fill? (Hint: Find the weight of soil solids in each truck loads and at the fill.) What would be the volume of the pit in the borrow area? How much water (in kN) should be added to a truckload? a. b. С.

Weight-Volume Relationships . The undisturbed soil at a borrow pit has a bulk unit weight of 19.1 kN/m³ and water content of 9.5%. The soil from this borrow will be used to construct a compacted fill with a finished volume of 42,000 m³. The soil is excavated by machinery and placed in trucks, each with a capacity of 4.50 m3. When loaded to the full capacity, each load of soil weighs 67.5 kN. at the borrow pit in the truck at the fill Borrow pit: w = 9.5%, Y = 19.1 kN/m Truck: w 9.5%, V = 4.5 ma; M.= 67.5 kN Compacted fill: w 15.0%, V = 42000 m3; y= 17.1 kN/m In the construction process, the trucks dump the soil at the site, then the soil is spread and broken up. Water is then sprinkled to bring the water content to 15%. Finally, the soil is compacted to a dry unit weight of 17.1 kN/ m³. Assuming each load is to the full capacity, how many truckloads are required to construct the fill? (Hint: Find the weight of soil solids in each truck loads and at the fill.) What would be the volume of the pit in the borrow area? How much water (in kN) should be added to a truckload? a. b. С.

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PROBLEM No. 3
Weight-Volume Relationships .
The undisturbed soil at a borrow pit has a bulk unit weight of 19.1 kN/m³ and water content of
9.5%. The soil from this borrow will be used to construct a compacted fill with a finished volume of
42,000 m3. The soil is excavated by machinery and placed in trucks, each with a capacity of 4.50 m³.
When loaded to the full capacity, each load of soil weighs 67.5 kN.
at the borrow pit
in the truck
at the fill
Borrow pit: w = 9.5%,
Ym=19.1 kN/m
Truck: w 9.5%,
V = 4.5 m; M.= 67.5 kN
Compacted fill: w 15.0%,
V = 42000 m3; Y 17.1 kN/m2
In the construction process, the trucks dump the soil at the site, then the soil is spread and broken
up. Water is then sprinkled to bring the water content to 15%. Finally, the soil is compacted to a dry
unit weight of 17.1 kN/ m³.
Assuming each load is to the full capacity, how many truckloads are required to construct the
fill? (Hint: Find the weight of soil solids in each truck loads and at the fill.)
What would be the volume of the pit in the borrow area?
How much water (in kN) should be added to a truckload?
а.
b.
С.

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