C SETTLEMENT YULVI ZAIKA

OUTCOMES OF STUDY Introduce consolidation settlement Understand 3 conditions primary consolidation based on pre consolidation stress Calculation primary consolidation settlement Calculation secondary consolidation settlement

COMPRESION OF SOIL  H: settlement

CALCULATION SETTLEMENT

SETTLEMENT COMPUTATION computing  e using e log  v’ plot e0e0 ee e1e1 0’0’  0 ’+  VCL

SETTLEMENT COMPUTATION computing  e using e log  v’ plot e0e0 ee e1e1 0’0’  0 ’+  VCL

SETTLEMENT COMPUTATION computing  e using e log  v’ plot e0e0 ee e1e1 0’0’  0 ’+  VCL cc

SECONDARY CONSOLIDATION SETTLEMENT This is also called Secondary compression (Creep). “It is the change in volume of a fine grained soil due to rearrangement of soil particles (fabric) at constant effective stress”. The rate of secondary consolidation is very slow when compared with primary consolidation.

Ssc : Settlement of secondary consolidation

Flow chart for calculation primary consolidation settlement Data: soil characteristic( ,Cc,Cs,  c,e0) soil layers load of upper structure If clay layer is more than 2 m Divide layer in to some thick layers. Define the reference point for every layer Calculate overburden pressure from soil surface to the reference points

Calculate applied load from foundation base (  ) To reference points Summation settlement of every layers