STUDY OF SOFT SOIL REINFORCEMENT USING HYBRID PILE-PVD

摘要

Recently due to the high demand of construction road need the construction in short period. The problem of construction on soft clay is the low bearing capacity and total as well as differential settlements. Therefore, innovation in soil improvement is needed. Soft soil improvement by geotextile and rigid piles is an interesting method to provide and economic and effective solution, which reduces settlements, construction time and cost. Full-scale tests were performed to investigate the performances of Pile-PVD (Hybrid pile), geotextile reinforcement and conventional pile. This study consisted of pore water pressure monitoring by piezometer, ground settlement monitoring by settlement plates and lateral movement by inclinometer. Preloading with a trial embankment of 4.5 m height was used in this study. Measurements were taken for each stage of embankment construction in 3 months. Monitoring results show that Hybrid pile has effectively increased stability and the time of consolidation. Consolidation settlements of Hybrid pile were found to be relatively faster compared to conventional pile reinforcement.