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Soil Mechanics

Engineering properties of soil.
Physical properties of soil (Study problems available)
Soil Classification (under construction)
Soil compaction (under construction)
Consolidation theory (under construction)
Stress in soil
Lateral earth pressure

Engineering properties of soil commonly used

Granular soil:

	Very loose	Loose	Medium	Dense	Very dense
Relative density	< 15%	15%-35%	35%-65%	65%-85%	85%-100%
Internal friction angle (deg)	< 28	28-30	30-36	36-40	> 40
Dry unit weight (lb/ft³)	< 90	90-100	100-110	110-120	> 120
Moist unit weight (lb/ft³)	< 100	100-120	120-130	130-140	> 140
SPT No.	0-4	4-10	10-30	30-50	> 50

Cohesive Soil:

	Very soft	Soft	Medium	Stiff	Very Stiff	Hard
Moist unit weight (lb/ft³)	< 100	100	115	120	125	> 130
Unconfined compressive strength (lb/ft²)	< 500	500-1000	100-2000	2000-4000	4000-8000	> 8000
SPT No.	< 2	2-4	4-8	8-16	16-32	> 32
Soil bearing capacity (lb/ft²)	< 1000	1000-2000	2000-4000	4000-8000	8000-16000	> 16000

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