A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
UNDER-REAMING APPARATUS AND UNDER-REAMED PILE CONSTRUCTION METHOD USING SAME
The present invention relates to: an under-reaming apparatus which can enlarge a diameter by hitting the side of a bottom portion of a borehole in the bored ground by using pneumatic or hydraulic fluid pressure, and particularly prevent the rotation of an under-reaming bit, thereby conducting more efficient under-reaming; and an under-reamed pile construction method using same.
La présente invention concerne : un appareil d'élargissement sous un tubage qui peut agrandir un diamètre en frappant le côté d'une partie inférieure d'un trou de forage dans le sol foré à l'aide d'une pression de fluide pneumatique ou hydraulique et empêcher en particulier la rotation d'un trépan d'élargissement sous un tubage, ce qui permet d'effectuer un élargissement sous un tubage plus efficace ; et un procédé de construction de pieu élargi sous un tubage l'utilisant.
본 발명은 공압 또는 수압의 유체압력을 이용하여 천공된 지반의 천공홀 하단부 측면을 타격하여 직경을 넓힐 수 있으며, 특히 확공비트의 회전을 방지하여 보다 효율적인 확공을 행할 수 있도록 하는, 확공 장치 및 이를 이용한 확공말뚝 시공 방법에 관한 것이다.
UNDER-REAMING APPARATUS AND UNDER-REAMED PILE CONSTRUCTION METHOD USING SAME
The present invention relates to: an under-reaming apparatus which can enlarge a diameter by hitting the side of a bottom portion of a borehole in the bored ground by using pneumatic or hydraulic fluid pressure, and particularly prevent the rotation of an under-reaming bit, thereby conducting more efficient under-reaming; and an under-reamed pile construction method using same.
La présente invention concerne : un appareil d'élargissement sous un tubage qui peut agrandir un diamètre en frappant le côté d'une partie inférieure d'un trou de forage dans le sol foré à l'aide d'une pression de fluide pneumatique ou hydraulique et empêcher en particulier la rotation d'un trépan d'élargissement sous un tubage, ce qui permet d'effectuer un élargissement sous un tubage plus efficace ; et un procédé de construction de pieu élargi sous un tubage l'utilisant.
본 발명은 공압 또는 수압의 유체압력을 이용하여 천공된 지반의 천공홀 하단부 측면을 타격하여 직경을 넓힐 수 있으며, 특히 확공비트의 회전을 방지하여 보다 효율적인 확공을 행할 수 있도록 하는, 확공 장치 및 이를 이용한 확공말뚝 시공 방법에 관한 것이다.
UNDER-REAMING APPARATUS AND UNDER-REAMED PILE CONSTRUCTION METHOD USING SAME
APPAREIL D'ÉLARGISSEMENT SOUS UN TUBAGE ET PROCÉDÉ DE CONSTRUCTION DE PIEU ÉLARGI SOUS UN TUBAGE L'UTILISANT
확공 장치 및 이를 이용한 확공말뚝 시공 방법
JEONG SOON YONG (author)
2023-07-13
Patent
Electronic Resource
Korean
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