钻孔变截面桩成孔技术研究

On the Technique of Well Completion with Borehole Variable Cross section Pile

钻孔变截面桩桩身串联有多个圆台，能够充分利用地基土的潜力，使其竖向和水平向承载力及抗拔力均高于等截面直身桩，并能减少砼灌注量。在软土地区使用钻孔变截面桩作为深基础可以取得较好的经济效益。

There are many disks in the shaft of borehole variable cross section pile which can fully utilize the latent energy of ground soil and its vertical and horizontal bearing capacities and pull strength are all higher than those of constant cross section piles. The amount of RC poured is also reduced. To use borehole variable cross section piles as deep foundation in soft soil district may acquire better economic benefit.