Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Pile sinking assisting device for prefabricated pipe pile and construction method
The invention discloses a pile sinking assisting device for a prefabricated pipe pile and a construction method.The device comprises a sinking assisting assembly, the sinking assisting assembly comprises a connecting assembly, a drill rod assembly, a driving box assembly, a reamer assembly and a main drill bit, one end of the connecting assembly is connected with one end of the drill rod assembly, and the other end of the connecting assembly is used for being connected with external equipment; the reamer assembly is connected with the driving box assembly, the driving box assembly arranged on the drill rod assembly in a sleeving mode is used for driving the reamer assembly to slide in the axial direction of the drill rod assembly, so that the reamer assembly is contained in a pipe hole of a prefabricated pipe pile or exposed out of the pipe hole of the prefabricated pipe pile, and the drill rod assembly is connected with the main drill bit. The main drill bit is used for drilling a stratum covered by a projection plane of an inner cavity of the prefabricated pipe pile, the reamer assembly is used for drilling a stratum on the outer side of the projection plane of the inner cavity of the prefabricated pipe pile, and therefore a drill hole with the outer diameter larger than that of the prefabricated pipe pile can be drilled through the main drill bit and the reamer bit. The diameter of the guide hole is larger than the outer diameter of the pile, and pile sinking resistance of a hard soil layer is greatly reduced or even eliminated.
本发明公开一种预制管桩用的沉桩助沉装置及施工方法，所述装置包括助沉组件，助沉组件包括连接组件、钻杆集成、驱动箱集成、扩孔器集成和主钻头，连接组件的一端与钻杆集成的一端连接，另一端用于与外部设备连接，扩孔器集成与驱动箱集连接，套设在钻杆集成上的驱动箱集成用于驱动扩孔器集成沿着钻杆集成的轴向滑动，以使得扩孔器集成收纳于预制管桩的管孔内或暴露于预制管桩的管孔外，钻杆集成与主钻头连接，主钻头用于钻进预制管桩内腔投影面所覆盖的地层，扩孔器集成用于钻进预制管桩内腔投影面外侧的地层，从而通过主钻头和扩孔钻头能够钻进出相比于预制管桩外径更大的钻孔。本发明的引孔孔径大于桩外径，大大降低甚至消除坚硬土层的沉桩阻力。
Pile sinking assisting device for prefabricated pipe pile and construction method
The invention discloses a pile sinking assisting device for a prefabricated pipe pile and a construction method.The device comprises a sinking assisting assembly, the sinking assisting assembly comprises a connecting assembly, a drill rod assembly, a driving box assembly, a reamer assembly and a main drill bit, one end of the connecting assembly is connected with one end of the drill rod assembly, and the other end of the connecting assembly is used for being connected with external equipment; the reamer assembly is connected with the driving box assembly, the driving box assembly arranged on the drill rod assembly in a sleeving mode is used for driving the reamer assembly to slide in the axial direction of the drill rod assembly, so that the reamer assembly is contained in a pipe hole of a prefabricated pipe pile or exposed out of the pipe hole of the prefabricated pipe pile, and the drill rod assembly is connected with the main drill bit. The main drill bit is used for drilling a stratum covered by a projection plane of an inner cavity of the prefabricated pipe pile, the reamer assembly is used for drilling a stratum on the outer side of the projection plane of the inner cavity of the prefabricated pipe pile, and therefore a drill hole with the outer diameter larger than that of the prefabricated pipe pile can be drilled through the main drill bit and the reamer bit. The diameter of the guide hole is larger than the outer diameter of the pile, and pile sinking resistance of a hard soil layer is greatly reduced or even eliminated.
本发明公开一种预制管桩用的沉桩助沉装置及施工方法，所述装置包括助沉组件，助沉组件包括连接组件、钻杆集成、驱动箱集成、扩孔器集成和主钻头，连接组件的一端与钻杆集成的一端连接，另一端用于与外部设备连接，扩孔器集成与驱动箱集连接，套设在钻杆集成上的驱动箱集成用于驱动扩孔器集成沿着钻杆集成的轴向滑动，以使得扩孔器集成收纳于预制管桩的管孔内或暴露于预制管桩的管孔外，钻杆集成与主钻头连接，主钻头用于钻进预制管桩内腔投影面所覆盖的地层，扩孔器集成用于钻进预制管桩内腔投影面外侧的地层，从而通过主钻头和扩孔钻头能够钻进出相比于预制管桩外径更大的钻孔。本发明的引孔孔径大于桩外径，大大降低甚至消除坚硬土层的沉桩阻力。
Pile sinking assisting device for prefabricated pipe pile and construction method
一种预制管桩用的沉桩助沉装置及施工方法
LYU SHUHUI (Autor:in) / SU LINWANG (Autor:in) / SU SHIDING (Autor:in) / ZHANG BO (Autor:in) / LI JINXIANG (Autor:in) / WU JIAQI (Autor:in)
28.11.2023
Patent
Elektronische Ressource
Chinesisch
Guide hole and pile sinking integrated prefabricated pipe pile construction method
| Europäisches Patentamt | 2023
Pile sinking device for assisting prefabricated hollow pile in frozen soil area
| Europäisches Patentamt | 2022
Pile feeder structure for assisting pile sinking construction
| Europäisches Patentamt | 2024