Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Screw pile forming system and method and expanded-head screw pile foundation structure thereof
The invention discloses a screw pile forming system and method and an expanded-head screw pile foundation structure thereof. The screw pile forming system comprises a screw pile, a vacuum pump and a water tank. The expanded head screw pile structure comprises a screw pile, a reinforcing steel bar, a grouting body and a riprap expanded head wrapped by grouting. The screw pile is formed by modifying a pile tip structure and a pile top structure on the basis of a traditional screw pile so as to adapt to hole cleaning and grouting of a riprap pore channel. The reinforcing steel bar is arranged in the center of the pipe pile, and the lower end is embedded into the riprap stratum; the riprap expansion head is an integral expansion head which is formed by wrapping the bottom end of the pipe pile by pressure grouting, diffusing to surrounding riprap body pores and connecting with a riprap stratum. The spiral pile foundation can be applied to the riprap stratum, the bearing effect of the expanded head at the bottom of the spiral pile is achieved through built-in reinforcing steel bars and grouting of the spiral pile, and therefore the bearing capacity of the spiral pile is greatly improved, large machines do not need to intervene in the construction process, and the spiral pile foundation has the advantages of being convenient to implement, short in construction period and low in cost.
本申请公开一种螺旋桩成桩系统和方法及其扩大头螺旋桩基础结构。螺旋桩成桩系统包括螺旋桩、真空泵、水箱。扩大头螺旋桩结构包括螺旋桩、加强钢筋、注浆体和注浆包裹起来的抛石扩大头。螺旋桩是在传统螺旋桩基础上改装了桩尖结构和桩顶结构，以适应抛石孔隙通道的清孔与灌浆；加强钢筋布设在管桩的中心位置，其下端嵌入抛石地层；抛石扩大头，是压力灌浆将管桩底端包裹起来，并向周围抛石体孔隙扩散，与抛石地层连成的扩大头整体。本申请可实现螺旋桩基础在抛石地层中的应用，通过螺旋桩内置加强钢筋和注浆而实现螺旋桩底部扩大头承载效果，从而大幅提升螺旋桩承载力，无需大型机械介入施工过程，具有实施方便、工期短、成本低的优点。
Screw pile forming system and method and expanded-head screw pile foundation structure thereof
The invention discloses a screw pile forming system and method and an expanded-head screw pile foundation structure thereof. The screw pile forming system comprises a screw pile, a vacuum pump and a water tank. The expanded head screw pile structure comprises a screw pile, a reinforcing steel bar, a grouting body and a riprap expanded head wrapped by grouting. The screw pile is formed by modifying a pile tip structure and a pile top structure on the basis of a traditional screw pile so as to adapt to hole cleaning and grouting of a riprap pore channel. The reinforcing steel bar is arranged in the center of the pipe pile, and the lower end is embedded into the riprap stratum; the riprap expansion head is an integral expansion head which is formed by wrapping the bottom end of the pipe pile by pressure grouting, diffusing to surrounding riprap body pores and connecting with a riprap stratum. The spiral pile foundation can be applied to the riprap stratum, the bearing effect of the expanded head at the bottom of the spiral pile is achieved through built-in reinforcing steel bars and grouting of the spiral pile, and therefore the bearing capacity of the spiral pile is greatly improved, large machines do not need to intervene in the construction process, and the spiral pile foundation has the advantages of being convenient to implement, short in construction period and low in cost.
本申请公开一种螺旋桩成桩系统和方法及其扩大头螺旋桩基础结构。螺旋桩成桩系统包括螺旋桩、真空泵、水箱。扩大头螺旋桩结构包括螺旋桩、加强钢筋、注浆体和注浆包裹起来的抛石扩大头。螺旋桩是在传统螺旋桩基础上改装了桩尖结构和桩顶结构，以适应抛石孔隙通道的清孔与灌浆；加强钢筋布设在管桩的中心位置，其下端嵌入抛石地层；抛石扩大头，是压力灌浆将管桩底端包裹起来，并向周围抛石体孔隙扩散，与抛石地层连成的扩大头整体。本申请可实现螺旋桩基础在抛石地层中的应用，通过螺旋桩内置加强钢筋和注浆而实现螺旋桩底部扩大头承载效果，从而大幅提升螺旋桩承载力，无需大型机械介入施工过程，具有实施方便、工期短、成本低的优点。
Screw pile forming system and method and expanded-head screw pile foundation structure thereof
一种螺旋桩成桩系统和方法及其扩大头螺旋桩基础结构
MEI CHUNXIAO (Autor:in) / TAN JIANXIN (Autor:in) / ZHANG QINGQING (Autor:in) / WANG ZHONGDAI (Autor:in) / XIE LIQUAN (Autor:in) / WU YAWEI (Autor:in) / ZHANG GUOFENG (Autor:in) / WU WEIQIANG (Autor:in) / YIN JUNJIE (Autor:in) / CHEN CHENG (Autor:in)
28.03.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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