An embankment for a highway 35 m long and 1.6 m in compacted thickness is to be constructedfrom a sandy soil trucked from a borrow pit. The water content of the sandy soil in the borrow pit is15% and its void ratio is 0.69. The specification requires the embankment to be compacted to a dryunit weight of 18 KN/m³, specific gravity of soil is 2.7. For a one-kilometer length of embankment,compute:a) Volume of the borrow pit soil required to construct the embankment|b) Determine the weight of water per truck load of sandy soil, if the capacity of a one truck load is10 m3.

FInd the dry densityγd=Gγ1+eγd=2.7×9.81+0.69=15.7kNm3

Answered: An embankment for a highway 35 m long…

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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Please give a more detailed and correct solution with question C. 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.
Earth is required to be excavated from borrow pits for building an embankment as shown in the figure below. The moisture unit weight of the borrow pits is 18 kN/m³ and its water content is 8%. Estimate the quantity of earth required to be excavated per meter length of embankment. The dry unit weight required for the embankment is 15 kN/m³ with a moisture content of 10%. Assume the specific gravity of solids as 2.67. Also determine the degree of saturation of the embankment soil and the volume of water in the embankment. (hint: Volume of emankment per meter length) |--2m- 4 m Embankment
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