GATE CE 2020 Set 2 — Question 33
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Geotechnical Engineering → Consolidation → Consolidation Settlement
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Question
A one-dimensional consolidation test is carried out on a standard thick clay sample. The oedometer's deflection gauge indicates a reading of , just before removal of the load, without allowing any swelling. The void ratio is at this stage. The initial void ratio (round off to two decimal places) of the standard specimen is ________________.
Correct answer
0.78 to 0.88
Solution
Given:
Initial thickness
Settlement
Final void ratio Step 1: Use the consolidation formula relating change in thickness to change in void ratio:Step 2: Substitute the values and solve for :Rounding off to two decimal places, the initial void ratio is .
Initial thickness
Settlement
Final void ratio Step 1: Use the consolidation formula relating change in thickness to change in void ratio:Step 2: Substitute the values and solve for :Rounding off to two decimal places, the initial void ratio is .
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