| Popis: |
As many infrastructures, projects are going on in Ahmedabad like metro rails and bridges which are being constructed, for that behaviour of pile foundation capacity is must, and in that too the behaviour of pile in overconsolidated soil. Sometimes the overconsolidated soil is considered as intermediate geomaterials (IGM); i.e. behaviour comes in between the continuum of soil and rock. There are many analytical methods for evaluating pile capacity in any type of soil. But for overconsolidated soil, it may be exhibited the wide range of properties. Using an analytical method, 17 problems were analysed and there results were calculated from LRFD method (O’Neill and Reese) and IS code (IS 2911 P1/S2, 2010) were compared, and the FEM modelling of this soil was done using software PLAXIS 2D. The load settlement curve from FEM software and actual load test data were super-imposed, and the result was quiet matching. Skin friction was found to be over predicted by 37.26%, 212.37%, and 32.46% when determined from static formula (IS 2911 P1/S2, 2010), Cole and Stroud method (IS 2911 and IRC 78, 2014) and LRFD method (O’Neill and Reese), respectively. End bearing was found to be over predicted by 754.31%, 864.89%, and 55.04% when determined from static formula (IS 2911 P1/S2, 2010), Cole and Stroud method (IS 2911 and IRC 78, 2014) and LRFD method (O’Neill and Reese), respectively. |
