夯扩桩技术及其应用

The technology of the tamping-expanding pile and its application

夯扩桩克服了沉管灌注桩的承载力低、桩身质量难以控制等缺点,在桩端持力层埋深小于20.0m的地区具有较好的适用性,能较大幅度地提高单桩承载力。

Tamping-expanding pile overcomes some shortcomings of east-in-placepile, such as lower bearing capacity, difficulty of pile bodily quality and so on. It has better applicability in such areas as the buried depth of holding layer is smaller than 20 meter, furthermore it may greatly improve the bearing capacity of single-pile.