Soil Profile

Fa

T1

T2

p

S1

2.5

0.15

0.4

0.8

S2

2.5

0.15

0.6

0.7

S3

2.0

0.2

1.0

0.6

S4

2.0

0.2

1.0

0.5

PROFILE
TYPES

DESCRIPTION

S1

Any rock, (sedimentary, crystalline) with velocity of shear waves propagation more than 800 m/s.
Their oscillation periods are between 0.3 and 0.5 Sec.

S2

Composed by stable deposits of dense sand, gravel, hard clay or combination of these materials with velocity of shear waves propagation between 240 and 450 m/s.
Their oscillation periods ate between 0.5 and 0.8 Sec.

S3

Composed of deposits, which contain sandy and clayey strata of varying soft-to-medium hardness and the local thickness of which exceeds 10m of depth, with velocity of shear waves propagation less than 240 m/s.
Their oscillation periods are between 0.8 and 1.2 Sec.

S4

Profile characterized by velocity of shear waves propagation less than 150 m/s with soft clay strata more than 12m. Their oscillation period will be more than 1.2 sec.