Soil Mechanics and Foundation
A grillage foundation

Is treated as spread foundation
Is provided for heavily loaded isolated columns
All of these
Consists of two sets of perpendicularly placed steel beams

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Soil Mechanics and Foundation
Degree of consolidation is

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

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Soil Mechanics and Foundation
Effective stress on soil

Decreases both voids ratio and permeability
Increases both voids ratio and permeability
Decreases voids ratio and increases permeability
Increases voids ratio and decreases permeability

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