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Construction method and construction device for preventing soil squeezing of prefabricated tubular pile through medium vibration method
The invention relates to a construction method and a construction device for preventing soil squeezing of a prefabricated tubular pile through a medium vibration method in the field of pile foundation engineering. While the prefabricated tubular pile (7) is pressed, a soil discharging pipe (1) is placed in a hollow part of the prefabricated tubular pile (7) and is connected with a vibration hammer (2), so that the friction force between soil mass and the soil discharging pipe (1) is greatly reduced through vibration, the soil mass is squeezed into the soil discharging pipe (1) through soil squeezing pressure generated near a pile tip during pile pressing, so that the squeezed soil mass has a smooth discharging channel in the pile pressing process, the pile pressing soil squeezing effect is reduced, and the construction device is suitable for soil squeezing prevention pile sinking construction of prefabricated tubular piles of various depths in various soil layers, high in construction efficiency, low in cost and good in soil squeezing prevention effect.
本发明涉及桩基工程领域中的一种中振法预制管桩防挤土施工方法与施工装置，在预制管桩(7)压桩的同时，通过在预制管桩(7)的中空部位放置排土管(1)，并将排土管(1)与振动锤(2)连接，通过振动，大幅度降低土体与排土管(1)之间的摩擦力，利用压桩时在桩尖附近产生的挤土压力，将土体挤入排土管(1)内，使得压桩过程中，被挤压的土体具有顺畅的排除通道，从而消减压桩挤土效应，适用于各种深度的预制管桩在各种不同土层中的防挤土沉桩施工，施工效率高，成本低，防挤土效果好。
Construction method and construction device for preventing soil squeezing of prefabricated tubular pile through medium vibration method
The invention relates to a construction method and a construction device for preventing soil squeezing of a prefabricated tubular pile through a medium vibration method in the field of pile foundation engineering. While the prefabricated tubular pile (7) is pressed, a soil discharging pipe (1) is placed in a hollow part of the prefabricated tubular pile (7) and is connected with a vibration hammer (2), so that the friction force between soil mass and the soil discharging pipe (1) is greatly reduced through vibration, the soil mass is squeezed into the soil discharging pipe (1) through soil squeezing pressure generated near a pile tip during pile pressing, so that the squeezed soil mass has a smooth discharging channel in the pile pressing process, the pile pressing soil squeezing effect is reduced, and the construction device is suitable for soil squeezing prevention pile sinking construction of prefabricated tubular piles of various depths in various soil layers, high in construction efficiency, low in cost and good in soil squeezing prevention effect.
本发明涉及桩基工程领域中的一种中振法预制管桩防挤土施工方法与施工装置，在预制管桩(7)压桩的同时，通过在预制管桩(7)的中空部位放置排土管(1)，并将排土管(1)与振动锤(2)连接，通过振动，大幅度降低土体与排土管(1)之间的摩擦力，利用压桩时在桩尖附近产生的挤土压力，将土体挤入排土管(1)内，使得压桩过程中，被挤压的土体具有顺畅的排除通道，从而消减压桩挤土效应，适用于各种深度的预制管桩在各种不同土层中的防挤土沉桩施工，施工效率高，成本低，防挤土效果好。
Construction method and construction device for preventing soil squeezing of prefabricated tubular pile through medium vibration method
一种中振法预制管桩防挤土施工方法与施工装置
ZHANG JIHONG (author)
2021-10-22
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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