5. A contractor is getting soil fill from a 300 ft x 200 ft borrow pit. The soil will be excavated to a depth of 3 ft. The swell factor of the soil is 20% and the specific weight of the soil after excavation will be 115 lb/ft3. A single truck will be used to transport all the soil volume to a dump site. The truck's maximum capacity per load is the lesser of 12 yd3 or 15 tons. How many loads will be required to transport the soil fill to the dump?

5. A contractor is getting soil fill from a 300 ft x 200 ft borrow pit. The soil will be excavated to a depth of 3 ft. The swell factor of the soil is 20% and the specific weight of the soil after excavation will be 115 lb/ft3. A single truck will be used to transport all the soil volume to a dump site. The truck's maximum capacity per load is the lesser of 12 yd3 or 15 tons. How many loads will be required to transport the soil fill to the dump?

Principles of Foundation Engineering (MindTap Course List)

9th Edition

ISBN:9781337705028

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter5: Soil Improvement And Ground Modification

Section: Chapter Questions

Problem 5.13P

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A truck is hauling earth from a construction site. The truck has the following specifications: Maximum allowable gross vehicle weight 37,800 lb Empty vehicle weight 10,800 lb Heaped capacity 12 yd 10 yd Struck capacity Haul time to dump area, including load, haul, return, and dump times 17 min Delay time 5 min/hr The soil has the following characteristics: Bank density Loose density 110 pcf 100 pcf The productivity, in bank measure (yd/hr), of this operation is most nearly: 38.8 (В) (C) (D) 35.3 32.3 29.5
6. It is required to transport a soil from a source location to the construction site. The specific gravity of the soil is 2.65 and the water content is measured as 10%. The capacity of the trucks, that will be used to transport the soil, is 20,000 kg. If the volume of soil placed in each truck is 9m³, what should be the minimum void ratio so the capacity of the truck is not exceeded.
Suppose that you are a Project Engineer on a Dam project. The volume of soil required at the dame site is Vd=100,000m3. The final void ratio (ed) is 0.80. Your boss, the Project Manager delegates to you the important decision of buying the earth fill from one of three suppliers. • Supplier X sells fill at OMR. 0.200/m3 with e = 0.90• Supplier Y sells fill at OMR. 0.120/m3 with e = 2.00• Supplier Z sells fill at OMR. 0.150/m3 with e = 1.60Evaluate and select the best supplier based on your knowledge about soil compaction.
A borrow pit’s soil is being used as earth fill at a construction project. The in-place dry density of the borrow pit soil is known to be 1,825 kg/m3. The job contract requires the soil at the construction site to be compacted to adry density of 1,975 kg/m3. The project requires 12,000 m3 of compacted soil fill. What volume of soil will the earthmoving contractor be required to obtain from the borrow pit to provide the necessary volume of compacted fill?
Dynamic loading, Vibro static test, Standard proctor and modified proctor are tests to determine soil compaction characteristics. Is it true ?
Where sand fill projects are concerned, why does vibro-compactors are typically selected?
You have been hired as a project Engineer for a development company in Namugongo to build 610 housing units. Since the original ground is low, you need fill material to raise the ground level. Your estimated fill requirements are 700,000m3 with a void ratio of 0.46. the insitu material at the borrow pit has a void ratio of 0.39 where as the material dumped in trucks has a void ration of 0.71. How many trucks will you need, if each truck carries 10m3? i will need all the work outs in full and well explained
It is necessary to specify compaction tests.
The soil at a job site can reach a maximum dry unit weight of 115.3 lb/ft^3. The contractor tests the soil after compaction and it has a dry unit weight of 109.5 lb/ft^3. What is the percent compaction of the soil? Type your answer...
84......................Explain the principles of operation of a compaction roller and its role in achieving soil density.
30. The proposed embankment fill requires 8000m³of compacted soil. The void ratio of the compacted fill is specified as 0.70. Four borrow pits are available as described in the following table, which list the respective void ratios of the soil and the cost per cubic meter for moving the soil to the proposed construction site. Assume that the specific gravity is the same at all pits, which among the pits should be bought to minimize the cost? Borrow Pit Void Ratio Cost (P/m³) A 0.82 400 B 0.9 450 1.1 250 D 0.78 600