Solve with complete solutions and explain. An embankment for a highway 30 m wide and 1.5 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 15% and its void ratio is 0.69. The swell index is 1.2. The specification requires the em- bankment to be compacted to a dry unit weight of 18 kN/m3. Determine, for a 1 km stretch of embankment, the weight of sandy soil from the borrow pit required to construct the embankment, the number of truckloads of sandy soil required for the construction. The full capacity of each truck is 22.2 m3 and local government policies require a maximum loaded capacity of 90%, the weight of water per truckload of sandy soil and the degree of satu- ration of the sandy soil in situ.
Solve with complete solutions and explain.
An embankment for a highway 30 m wide and 1.5 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 15% and its
void ratio is 0.69. The swell index is 1.2. The specification requires the em-
bankment to be compacted to a dry unit weight of 18 kN/m3. Determine, for a 1 km stretch of embankment, the weight of sandy soil from the borrow
pit required to construct the embankment, the number of truckloads of sandy soil required for the construction. The full capacity of each truck is 22.2
m3 and local government policies require a maximum loaded capacity of 90%, the weight of water per truckload of sandy soil and the degree of satu-
ration of the sandy soil in situ.
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