Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Pipe end inner hammer piling device, assembling method and pile sinking construction method
The invention provides a pipe end internal hammering piling device and an assembling and pile sinking construction method. The problem that a light pipe pile is poor in drillability in a dense stratum is solved. An annular circular plate is arranged at the bottom of the pipe pile, and an annular pipe cavity is reserved between the pipe end inner hammer piling device and the inner circumferential wall of the pipe pile. The pipe end inner hammering piling device comprises a hammer head assembly, a buffering assembly and a force transmission assembly which are connected from bottom to top, the hammer head assembly comprises a hammer head facing the through opening, the buffering assembly has buffering displacement extending and retracting along the axis, and the force transmission assembly rigidly presses the buffering assembly. The pile driving load directly acts on the pile end, the weakening effect of the pile side friction resistance on the hammering stress is reduced, the adverse effect of a soil plug is avoided, therefore, the excitation energy is reduced, and the drillable performance of the pipe pile is improved. According to the device, various pulse width hammering loads can be generated by adjusting the spring, so that the piling requirements of different pipe pile sizes and stratum conditions are met; the device can be disassembled, assembled and recycled, and has a certain cost advantage.
本发明提供了一种管端内锤打桩装置、组装及沉桩施工方法，以解决轻质管桩在密实地层中可打性差的问题。管桩底部设置环形圆板，管端内锤打桩装置与管桩内周壁之间余留环形管腔。管端内锤打桩装置包括由下至上相衔接的锤头组件、缓冲组件和传力组件，锤头组件包括朝向通口的锤头，缓冲组件具有沿轴线伸缩的缓冲位移量，传力组件刚性压制缓冲组件。本发明将打桩荷载直接作用于桩端，降低锤击应力受桩侧摩阻力的削弱作用，避免土塞的不利影响，从而减小激振能量、提高管桩可打性能。本发明装置可通过调整弹簧产生多种脉冲宽度锤击荷载，以适应不同管桩尺寸、地层条件打桩要求；装置可拆卸、组装、回收再利用，具有一定成本优势。
Pipe end inner hammer piling device, assembling method and pile sinking construction method
The invention provides a pipe end internal hammering piling device and an assembling and pile sinking construction method. The problem that a light pipe pile is poor in drillability in a dense stratum is solved. An annular circular plate is arranged at the bottom of the pipe pile, and an annular pipe cavity is reserved between the pipe end inner hammer piling device and the inner circumferential wall of the pipe pile. The pipe end inner hammering piling device comprises a hammer head assembly, a buffering assembly and a force transmission assembly which are connected from bottom to top, the hammer head assembly comprises a hammer head facing the through opening, the buffering assembly has buffering displacement extending and retracting along the axis, and the force transmission assembly rigidly presses the buffering assembly. The pile driving load directly acts on the pile end, the weakening effect of the pile side friction resistance on the hammering stress is reduced, the adverse effect of a soil plug is avoided, therefore, the excitation energy is reduced, and the drillable performance of the pipe pile is improved. According to the device, various pulse width hammering loads can be generated by adjusting the spring, so that the piling requirements of different pipe pile sizes and stratum conditions are met; the device can be disassembled, assembled and recycled, and has a certain cost advantage.
本发明提供了一种管端内锤打桩装置、组装及沉桩施工方法，以解决轻质管桩在密实地层中可打性差的问题。管桩底部设置环形圆板，管端内锤打桩装置与管桩内周壁之间余留环形管腔。管端内锤打桩装置包括由下至上相衔接的锤头组件、缓冲组件和传力组件，锤头组件包括朝向通口的锤头，缓冲组件具有沿轴线伸缩的缓冲位移量，传力组件刚性压制缓冲组件。本发明将打桩荷载直接作用于桩端，降低锤击应力受桩侧摩阻力的削弱作用，避免土塞的不利影响，从而减小激振能量、提高管桩可打性能。本发明装置可通过调整弹簧产生多种脉冲宽度锤击荷载，以适应不同管桩尺寸、地层条件打桩要求；装置可拆卸、组装、回收再利用，具有一定成本优势。
Pipe end inner hammer piling device, assembling method and pile sinking construction method
一种管端内锤打桩装置、组装方法与沉桩施工方法
TU YUAN (Autor:in) / GUAN CHENGJUN (Autor:in) / WEN MINJIE (Autor:in) / ZHANG YIMING (Autor:in) / WU JUNTAO (Autor:in) / DING PAN (Autor:in) / CHEN MENGHUAN (Autor:in) / TANG KEJIE (Autor:in) / XIE JIAHAO (Autor:in)
06.02.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
Deep soft soil high-strength prestressed pipe pile hammer piling construction method
| Europäisches Patentamt | 2015