Attachment A3 SBC 00
Attachment A3 SBC 00
Attachment A3 SBC 00
This capacity is vetrified based on settlement criteria and calculations are provided
below.
Allowable SBC on the basis of Settlements are estimated in the following pages.
Foundation Strata = Silty Sandy Gravel
Ground Level = 476.780
Foundation Level = -0.932 RL
Depth Below Scour Level = 477.712 m
Minimum Dimension of Foundation = 2.00 m
Depth Correction Factor = 0.5006
Design SPT (Corrected as per IS: 2131) = 18
Refer Fig. No. 9 of IS:8009 (Part I) - 1976 =
For unit pressure, settlement = 12 mm
Water Table Correction Factor = 0.5
Depth Correction Factor =
0.5006
Rigidity Correction Factor = 0.8
Estimated Settlement after applying all factors =
9.6121 mm
Permissible Settlement = 25 mm
2
Allowable Pressure from settlements considerations =2.601 kg/cm
2
= 260 kN/m
2
SBC on shear failure criteria 162.21 kN/m
=
Hence, Allowable SBC = 150 kN/m2
Allowable SBC on the basis of Settlements are estimated in the following pages.
Foundation Strata = Silty Sandy Gravel
Ground Level = 476.780
Foundation Level = -2.772 RL
Depth Below Scour Level = 479.552 m
Minimum Dimension of Foundation = 2.00 m
Depth Correction Factor = 0.5006
Design SPT (Corrected as per IS: 2131) = 18
Refer Fig. No. 9 of IS:8009 (Part I) - 1976 =
For unit pressure, settlement = 12 mm
Water Table Correction Factor = 0.5
Depth Correction Factor = 0.5006
Rigidity Correction Factor = 0.8
Estimated Settlement after applying all factors = 9.612 mm
Permissible Settlement = 25 mm
Allowable Pressure from settlements considerations = 2.601 kg/cm2
= 260 kN/m2
SBC on shear failure criteria = 310.01 kN/m2
Hence, Allowable SBC = 250 kN/m2