A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Self-compacting spiral steel pile
The invention discloses a self-compacting spiral steel pile which comprises a pile body and a spiral blade, the spiral blade is arranged on the outer wall of the front end of the pile body, and the diameter of the part, above the spiral blade, of the pile body is increased. The diameter of the part, above the spiral blade, of the pile body can be larger than or equal to the outer diameter of the spiral blade. According to the self-compacting spiral steel pile, in the drilling process, the spiral blade of the self-compacting spiral steel pile can convey soil to an expanding head, the expandinghead can press the soil into the periphery of the pile in the radial direction, the soil is prevented from being drilled out, the soil around the pile is compacted, the compactness of the soil aroundthe pile and the pile side resistance above the spiral blade are increased, and then the compression resistance and uplift bearing capacity of the pile body are improved. In conclusion, compared witha traditional spiral steel pile, the self-compacting spiral steel pile not only can prevent soil from being discharged, but also can improve the pile side resistance of the part above the spiral blade, and therefore the bearing capacity of the single pile is improved.
本发明公开了一种自密实螺旋钢桩，包括桩身和螺旋叶片，所述螺旋叶片设于桩身前端的外壁，螺旋叶片以上的部位的桩身的直径扩大。螺旋叶片以上的部位的桩身的直径可大于等于螺旋叶片外径。本发明自密实螺旋钢桩，在钻进过程中，自密实螺旋钢桩的螺旋叶片能将土输送至扩大头，扩大头能够把土径向压入桩周，防止土被钻出，使得桩周土被挤密，增加桩周土密实度和螺旋叶片以上的桩侧阻力，进而提高桩体的抗压和抗拔承载力。综上所述，本自密实螺旋钢桩相比于传统螺旋钢桩，不仅能够防止土排出，还会使得螺旋叶片以上部分的桩侧阻力有所提高，从而提高单桩承载力。
Self-compacting spiral steel pile
The invention discloses a self-compacting spiral steel pile which comprises a pile body and a spiral blade, the spiral blade is arranged on the outer wall of the front end of the pile body, and the diameter of the part, above the spiral blade, of the pile body is increased. The diameter of the part, above the spiral blade, of the pile body can be larger than or equal to the outer diameter of the spiral blade. According to the self-compacting spiral steel pile, in the drilling process, the spiral blade of the self-compacting spiral steel pile can convey soil to an expanding head, the expandinghead can press the soil into the periphery of the pile in the radial direction, the soil is prevented from being drilled out, the soil around the pile is compacted, the compactness of the soil aroundthe pile and the pile side resistance above the spiral blade are increased, and then the compression resistance and uplift bearing capacity of the pile body are improved. In conclusion, compared witha traditional spiral steel pile, the self-compacting spiral steel pile not only can prevent soil from being discharged, but also can improve the pile side resistance of the part above the spiral blade, and therefore the bearing capacity of the single pile is improved.
本发明公开了一种自密实螺旋钢桩，包括桩身和螺旋叶片，所述螺旋叶片设于桩身前端的外壁，螺旋叶片以上的部位的桩身的直径扩大。螺旋叶片以上的部位的桩身的直径可大于等于螺旋叶片外径。本发明自密实螺旋钢桩，在钻进过程中，自密实螺旋钢桩的螺旋叶片能将土输送至扩大头，扩大头能够把土径向压入桩周，防止土被钻出，使得桩周土被挤密，增加桩周土密实度和螺旋叶片以上的桩侧阻力，进而提高桩体的抗压和抗拔承载力。综上所述，本自密实螺旋钢桩相比于传统螺旋钢桩，不仅能够防止土排出，还会使得螺旋叶片以上部分的桩侧阻力有所提高，从而提高单桩承载力。
Self-compacting spiral steel pile
自密实螺旋钢桩
ZHANG JINGSHU (author) / ZHAO FAWEI (author) / LIU HAIYANG (author) / YU TING (author)
2020-11-10
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
Pile production with self-compacting concrete at Schokindustrie
| British Library Online Contents | 2002