Example 2 Twelve undisturbed soil samples were obtained from borings in a proposed cut area. These samples had an average Yd of 108 lb/ft³ and an average w of 9.1%. A proctor compaction test performed on a representative bulk sample produced Yd,max 124 lb/ft³ and w₁ = 12.8%. A proposed grading plan calls for 12,000 yd³ of cut, and 11,500 yd³ of fill, and the specification call for a relative compaction of at least 90%. = a) Compute the required quantity of import (or export) soils based on the unite weight of the cut b) Compute the weight of import (or export) in tons using the moisture content of the cut c) Compute the required quantity of water in gallons to bring the fill soils to the optimum moisture content
Example 2 Twelve undisturbed soil samples were obtained from borings in a proposed cut area. These samples had an average Yd of 108 lb/ft³ and an average w of 9.1%. A proctor compaction test performed on a representative bulk sample produced Yd,max 124 lb/ft³ and w₁ = 12.8%. A proposed grading plan calls for 12,000 yd³ of cut, and 11,500 yd³ of fill, and the specification call for a relative compaction of at least 90%. = a) Compute the required quantity of import (or export) soils based on the unite weight of the cut b) Compute the weight of import (or export) in tons using the moisture content of the cut c) Compute the required quantity of water in gallons to bring the fill soils to the optimum moisture content
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Example 2
Twelve undisturbed soil samples were obtained from
borings in a proposed cut area. These samples had an
average Yd of 108 lb/ft³ and an average w of 9.1%. A
proctor compaction test performed on a representative
bulk sample produced Yd,max 124 lb/ft³ and w₁ = 12.8%.
A proposed grading plan calls for 12,000 yd³ of cut, and
11,500 yd³ of fill, and the specification call for a relative
compaction of at least 90%.
=
a) Compute the required quantity of import (or export)
soils based on the unite weight of the cut
b) Compute the weight of import (or export) in tons using
the moisture content of the cut
c) Compute the required quantity of water in gallons to
bring the fill soils to the optimum moisture content
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