Soil Mechanics and Foundation
Degree of consolidation is

directly proportional to drainage path and inversely proportional to time
directly proportional to time and inversely proportional to drainage path
directly proportional to time and inversely proportional to square of drainage path
directly proportional to square of drainage path and inversely proportional to time

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Soil Mechanics and Foundation
With the increase in the amount of compaction energy

both optimum water content and maximum dry density increase
optimum water content increases but maximum dry density decreases
optimum water content decreases but maximum dry density increases
both optimum water content and maximum dry density decrease[ES 93]

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