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Sampling

Sampling

Schematic view of deep block sampling

Basic index properties

Characteristics and factors hypothesized to have relation with soil strength

Basic index properties

Ranges in effective stress failure envelopes for pure clay minerals and quartz

Basic index properties(a) Plasticity chart (b) Activity chart

Assignment: Banjarmasin clay?

Compression properties1. Swelling/shrinkage:

Kaolinite:....?% Illite :....?% Montmorillonite :....?%

Compression properties2. Loading and unloading consolidation and heave

One-dimensional compressionPrimary compression

Boundary conditions for one dimensional compression

One-dimensional compressionPrimary compression

Boundary conditions for one dimensional compression

One-dimensional compressionEmpirical equations to estimate the earth pressure coefficient at rest, K0

One-dimensional compressionEmpirical equations to estimate the earth pressure coefficient at rest, K0

One-dimensional compression

Empirical equations

Compression and unload - reload indices as a function of plasticity index

Empirical equations to predict, Cc, Cs, l and k

Two and three-dimensional compression