FEASIBILITY ANALYSIS AND FIELD TEST ON DRIVING PHC PILE THROUGH DEEP DENSE SAND

Driving PHC pile through deep dense sand conditions often causes damage to the pile. The pile can't be drived into the design depth. Driving PHC pile through deep dense sand layer is analyzed using GRLWEAP for comprehensive analysis of these conditions of PHC pile to drive. The high strain monitoring test is also carried out. The research finds that it is feasible to drive the PHC pile through deep dense sand layer with reasonable selection of pile driving system and driving technology. Besides, it is necessary to take guide-hole measures and strengthen the pile body and pile shoe of PHC pile. The findings can provide a scientific basis for the design and construction of PHC pile in deep dense sand conditions.