Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-pressure air impact pile sinking construction process in pile end of tubular pile with expanded pile shoe
The invention discloses a high-pressure air impact pile sinking construction process in the pile end of a tubular pile with an expanded pile shoe. Compressed air provided by the air compressor is used as an impact air source, pulse type impact force is generated between the pile end and the pile shoe, so that the expanded pile shoe is driven into a soil layer under the impact effect of the compressed air, and the prestressed pipe pile is lifted upwards and then freely falls under the impact effect of the compressed air; the expanded pile shoe is impacted so that the expanded pile shoe can further sink; in the sinking process of the expanding pile shoe, a pile side gap channel is formed through the pile diameter expanding effect of the expanding pile shoe, and the resistance of layered soil around the pile to the pile body of the prestressed pipe pile in the pile sinking process is reduced. According to the construction technology, the requirement for equipment is low, the bearing capacity of an equipment platform generally does not need to be specially treated, the equipment platform can be recycled after construction is completed, and therefore good economic benefits are achieved.
本发明公开了一种带扩大桩靴管桩桩端内高压空气冲击沉桩施工工艺。本发明利用空气压缩机提供的压缩空气作为冲击气源，在桩端与桩靴之间产生脉冲式的冲击力，从而使扩大桩靴在压缩空气冲击作用下被打入土层，而预应力管桩在压缩空气冲击作用下先向上抬升再自由下落，对扩大桩靴进行撞击使其进一步下沉；扩大桩靴在下沉过程中，利用其扩大桩径的作用形成桩侧空隙通道，减少沉桩过程中预应力管桩桩身受到桩周成层土的阻力。本发明提供的施工工艺对设备的要求交底，设备平台承载力一般不需要进行特殊处理，且施工完成后均可回收，因此具有良好的经济效益。
High-pressure air impact pile sinking construction process in pile end of tubular pile with expanded pile shoe
The invention discloses a high-pressure air impact pile sinking construction process in the pile end of a tubular pile with an expanded pile shoe. Compressed air provided by the air compressor is used as an impact air source, pulse type impact force is generated between the pile end and the pile shoe, so that the expanded pile shoe is driven into a soil layer under the impact effect of the compressed air, and the prestressed pipe pile is lifted upwards and then freely falls under the impact effect of the compressed air; the expanded pile shoe is impacted so that the expanded pile shoe can further sink; in the sinking process of the expanding pile shoe, a pile side gap channel is formed through the pile diameter expanding effect of the expanding pile shoe, and the resistance of layered soil around the pile to the pile body of the prestressed pipe pile in the pile sinking process is reduced. According to the construction technology, the requirement for equipment is low, the bearing capacity of an equipment platform generally does not need to be specially treated, the equipment platform can be recycled after construction is completed, and therefore good economic benefits are achieved.
本发明公开了一种带扩大桩靴管桩桩端内高压空气冲击沉桩施工工艺。本发明利用空气压缩机提供的压缩空气作为冲击气源，在桩端与桩靴之间产生脉冲式的冲击力，从而使扩大桩靴在压缩空气冲击作用下被打入土层，而预应力管桩在压缩空气冲击作用下先向上抬升再自由下落，对扩大桩靴进行撞击使其进一步下沉；扩大桩靴在下沉过程中，利用其扩大桩径的作用形成桩侧空隙通道，减少沉桩过程中预应力管桩桩身受到桩周成层土的阻力。本发明提供的施工工艺对设备的要求交底，设备平台承载力一般不需要进行特殊处理，且施工完成后均可回收，因此具有良好的经济效益。
High-pressure air impact pile sinking construction process in pile end of tubular pile with expanded pile shoe
带扩大桩靴管桩桩端内高压空气冲击沉桩施工工艺
WU JUNTAO (Autor:in) / LIANG YIRAN (Autor:in) / GAN GANG (Autor:in) / XU YINGHAO (Autor:in) / WANG KUIHUA (Autor:in) / WANG JUN (Autor:in) / ZENG KAI (Autor:in) / XU HAONAN (Autor:in)
07.06.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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