(a) What types of soil, if properly compacted, would be \"best\" suited for use
ID: 1714032 • Letter: #
Question
(a) What types of soil, if properly compacted, would be "best" suited for use in the low permeability "core" section and the low compressibility, strong "shell" section of an earth dam? (b) What compaction equipment would work "best" for each? (c) What type of soil would be best for constructing the base liner of a municipal solid-waste landfill and for the drainage layer that will be constructed above it? (d) Assuming that the base liner material has the compaction characteristics described by the test results of Problem 1, what would be reasonable compaction specifications for a 0.6 m thick base liner constructed using this soil?Explanation / Answer
a) clayey soil is suitable for low permeability core section, to reduce the seepage and reduce the uplift pressure under the dam.
a silty sand is suitable for low compressibilty, strong shell action of earth dam to increase the stabilty of tha dam.
b)vibrating sheepsfoot rammer is excellent in compaction of caly soil.
scraper, rubber tired roller, grit roller are suitable for silty sand.
c) compacted clayey soil would be best suited for constucting the base liner of a municipal solid waste land fill
because they are protected to prevent contamination of ground water and the underlaying soil from leachate releases.
sand and gravel are suitable for drainage layer
d) test results are not given. so i could not able to solve.
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