DESIGN AND CONSTRUCTION OF PREFABRICATED SPINNING STEEL PIPE PILES WITH ENLARGED ENDS

Spinning steel pipe piles with enlarged ends, simply named as STG piles, is a new kind of spinning steel pipe piles developed in recent years. It inherits the advantages of traditional spinning steel pipe piles and improves the structure of the traditional pile ends. A new type structure of pile ends with cutting edges and corresponding spiral threads is proposed, which has become one of the most widely used spinning steel pipe piles all over the world. On the basis of summaries to the evolution of spinning steel pipe piles with enlarged ends in Japan, the new type of spinning steel pipe piles developed by Guangxi Shenghu Metal Products Ltd. Company was introduced including the characteristics, scope of application, structure type, design procedure, construction process and guarantee measures under construction. Finally, a practice application of STG piles was introduced briefly.