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A platform for research: civil engineering, architecture and urbanism
Rotary penetration steel pipe pile and construction method thereof
The invention provides a rotary penetration steel pipe pile and a construction method thereof, in which the rotary penetration steel pipe pile is piled in a manner that the front end of the pile does not reach a supporting layer and is arranged in an intermediate layer, the supporting force can be fully exerted, and the cost can be reduced. The rotary penetration steel pipe pile (1) is arranged in the middle layer in a piling manner without enabling the pile front end to reach the supporting layer, and is provided with the lowest-level wing (3) which is arranged near the pile front end and is roughly spiral in a single circle, and the upper-level wing (5) which is arranged above the lowest-level wing (3) in a multi-level manner and is arranged at a constant interval in the range of 1.25-7.5 times of the wing diameter in a single circle. The outer diameter of the lowermost wing (3) is larger than the outer diameter of the upper wing (5) and set to 1.5-3 times the pile diameter, the outer diameter of the upper wing (5) is smaller than the outer diameter of the lowermost wing (3) and set to 1.6 times or less the pile diameter, and the pitch of the upper wing (5) is set to be the same as the pitch of the lowermost wing (3).
本发明提供一种旋转贯入钢管桩、该旋转贯入钢管桩的施工方法，其中，旋转贯入钢管桩以不使桩前端到达支承层而配置于中间层的方式被打桩设置，能够充分发挥支承力且能够降低成本。本发明的旋转贯入钢管桩(1)以不使桩前端到达支承层而配置于中间层的方式被打桩设置，具有设置于桩前端附近的大致螺旋状的一圈的最下级翼(3)、和在最下级翼(3)的上方以多级且以翼径的1.25～7.5倍的范围内的恒定间隔设置的一圈的上级翼(5)，最下级翼(3)的外径大于上级翼(5)的外径，且设定为桩径的1.5～3倍，上级翼(5)的外径小于最下级翼(3)的外径，且是桩径的1.6倍以下，上级翼(5)的螺距设定为与最下级翼(3)的螺距相同。
Rotary penetration steel pipe pile and construction method thereof
The invention provides a rotary penetration steel pipe pile and a construction method thereof, in which the rotary penetration steel pipe pile is piled in a manner that the front end of the pile does not reach a supporting layer and is arranged in an intermediate layer, the supporting force can be fully exerted, and the cost can be reduced. The rotary penetration steel pipe pile (1) is arranged in the middle layer in a piling manner without enabling the pile front end to reach the supporting layer, and is provided with the lowest-level wing (3) which is arranged near the pile front end and is roughly spiral in a single circle, and the upper-level wing (5) which is arranged above the lowest-level wing (3) in a multi-level manner and is arranged at a constant interval in the range of 1.25-7.5 times of the wing diameter in a single circle. The outer diameter of the lowermost wing (3) is larger than the outer diameter of the upper wing (5) and set to 1.5-3 times the pile diameter, the outer diameter of the upper wing (5) is smaller than the outer diameter of the lowermost wing (3) and set to 1.6 times or less the pile diameter, and the pitch of the upper wing (5) is set to be the same as the pitch of the lowermost wing (3).
本发明提供一种旋转贯入钢管桩、该旋转贯入钢管桩的施工方法，其中，旋转贯入钢管桩以不使桩前端到达支承层而配置于中间层的方式被打桩设置，能够充分发挥支承力且能够降低成本。本发明的旋转贯入钢管桩(1)以不使桩前端到达支承层而配置于中间层的方式被打桩设置，具有设置于桩前端附近的大致螺旋状的一圈的最下级翼(3)、和在最下级翼(3)的上方以多级且以翼径的1.25～7.5倍的范围内的恒定间隔设置的一圈的上级翼(5)，最下级翼(3)的外径大于上级翼(5)的外径，且设定为桩径的1.5～3倍，上级翼(5)的外径小于最下级翼(3)的外径，且是桩径的1.6倍以下，上级翼(5)的螺距设定为与最下级翼(3)的螺距相同。
Rotary penetration steel pipe pile and construction method thereof
旋转贯入钢管桩、该旋转贯入钢管桩的施工方法
KAWAI MARINA (author) / SHINOHARA TOSHIO (author) / FUKAYA TOSHIYUKI (author)
2024-04-02
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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