Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method of rotary digging pore-forming cast-in-situ bored pile
The invention relates to a construction method of a rotary digging pore-forming cast-in-situ bored pile. The method comprises the steps that a total station is adopted for obtaining the coordinate position of each pile point through setting out, and the pile core position of each pile point is marked out; a protection barrel is buried based on the pile pore positions, and the center line of the protection barrel coincides with the pile core positions; the inner diameter of the protection barrel is larger than the outer diameter of a pore; a drill bit is selected according to soil textures, anddrilling work is carried out on rock soil in the protection barrel; when the drill bit carries out rotary digging to the design pore depth elevation, the drill bit is replaced with an expanded-base drill bit till the expanded-base drill bit carries out base expansion to the design elevation and the pore diameter; pore cleaning treatment is carried out on the pore bottom; steel reinforcement cagesare mounted, and the steel reinforcement cages are prefabricated on the ground and then are placed into the pore at a constant speed through hoisting; and a guide pipe is placed in the pore, concreteis poured into the pore through the guide pipe, and after pouring is completed, the guide pipe is pulled out. By means of the method, the construction progress can be increased, the construction period can be shortened, the construction danger coefficient can be reduced, and operation is convenient and rapid.
本申请涉及一种旋挖成孔钻孔灌注桩的施工方法，所述方法包括：采用全站仪放样出每个桩点的坐标位置，并标出每个桩点的桩芯位置；基于所述桩芯位置埋设护筒，所述护筒的中心线与所述桩芯位置重合；其中，所述护筒的内径大于孔外径；根据土质选择钻头，并对所述护筒内的岩土进行钻孔工作；当钻头旋挖至设计孔深标高时，更换扩底钻头，直至所述扩底钻头扩底达到了设计标高及孔径；对孔底进行清孔处理；安装钢筋笼，所述钢筋笼在地面上预制好，然后吊装将所述钢筋笼匀速放入至孔内；向孔内放入导管，并通过导管向孔内灌注混凝土，灌注完成后，拔除所述导管，其能够加快工程施工进度、缩短施工工期、降低施工危险系数，方便快捷。
Construction method of rotary digging pore-forming cast-in-situ bored pile
The invention relates to a construction method of a rotary digging pore-forming cast-in-situ bored pile. The method comprises the steps that a total station is adopted for obtaining the coordinate position of each pile point through setting out, and the pile core position of each pile point is marked out; a protection barrel is buried based on the pile pore positions, and the center line of the protection barrel coincides with the pile core positions; the inner diameter of the protection barrel is larger than the outer diameter of a pore; a drill bit is selected according to soil textures, anddrilling work is carried out on rock soil in the protection barrel; when the drill bit carries out rotary digging to the design pore depth elevation, the drill bit is replaced with an expanded-base drill bit till the expanded-base drill bit carries out base expansion to the design elevation and the pore diameter; pore cleaning treatment is carried out on the pore bottom; steel reinforcement cagesare mounted, and the steel reinforcement cages are prefabricated on the ground and then are placed into the pore at a constant speed through hoisting; and a guide pipe is placed in the pore, concreteis poured into the pore through the guide pipe, and after pouring is completed, the guide pipe is pulled out. By means of the method, the construction progress can be increased, the construction period can be shortened, the construction danger coefficient can be reduced, and operation is convenient and rapid.
本申请涉及一种旋挖成孔钻孔灌注桩的施工方法，所述方法包括：采用全站仪放样出每个桩点的坐标位置，并标出每个桩点的桩芯位置；基于所述桩芯位置埋设护筒，所述护筒的中心线与所述桩芯位置重合；其中，所述护筒的内径大于孔外径；根据土质选择钻头，并对所述护筒内的岩土进行钻孔工作；当钻头旋挖至设计孔深标高时，更换扩底钻头，直至所述扩底钻头扩底达到了设计标高及孔径；对孔底进行清孔处理；安装钢筋笼，所述钢筋笼在地面上预制好，然后吊装将所述钢筋笼匀速放入至孔内；向孔内放入导管，并通过导管向孔内灌注混凝土，灌注完成后，拔除所述导管，其能够加快工程施工进度、缩短施工工期、降低施工危险系数，方便快捷。
Construction method of rotary digging pore-forming cast-in-situ bored pile
旋挖成孔钻孔灌注桩的施工方法
ZHANG XINGXIANG (Autor:in) / CHEN DONGQUAN (Autor:in) / SHI ZHULIN (Autor:in) / XIA QING (Autor:in) / DING WEI (Autor:in)
20.10.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
Construction method of rotary digging hole-forming cast-in-situ bored pile
| Europäisches Patentamt | 2022
Rotary excavating cast-in-situ bored pile construction method
| Europäisches Patentamt | 2024
Pile repairing construction method for rotary cast-in-situ bored pile
| Europäisches Patentamt | 2023