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A platform for research: civil engineering, architecture and urbanism
Prefabricated tubular pile with pile bottom expanding device and construction method
The invention discloses a prefabricated tubular pile with a pile bottom expanding device and a construction method, the prefabricated tubular pile comprises a hollow pile body, a grouting pipe, a pile tip and a diffusion wing, the grouting pipe is nested in an internal hollow structure of the hollow pile body, the pile tip is arranged at the bottom of the grouting pipe, a first grouting hole is formed in the pile tip, one end of the first grouting hole is communicated with the grouting pipe, and the other end of the first grouting hole is communicated with the diffusion wing. The other end is led into the stratum structure; the diffusion wing is hinged to the bottom of the grouting pipe, and the diffusion wing can be folded or unfolded along the hinged position; a second grouting hole is formed in the grouting pipe, one end of the second grouting hole communicates with the grouting pipe, and the other end of the second grouting hole communicates with the diffusion wing. The pile tip and the diffusion wing enable the expansion head integral structure formed after concrete grout grouting and the grout spreading direction to be controllable, so that the expansion head with a more stable structure is obtained, and the bearing capacity of the expansion head is enhanced; and the diffusion wings can enable most of the grout to be diffused in the direction of the diffusion wings, and the expansion area of the concrete grout can be increased, so that the bearing capacity and the pulling resistance are further enhanced.
本发明公开了一种带有桩底扩大装置的预制管桩及施工方法，包括中空桩身、注浆管、桩尖和扩散翼，注浆管嵌套于中空桩身的内部中空结构内，桩尖设置于注浆管底部，且桩尖上开设有第一注浆孔，所述第一注浆孔一端与注浆管连通，另一端通入地层结构内；扩散翼铰接于注浆管底部，且扩散翼能沿铰接处收拢或展开；注浆管上开设有第二注浆孔，第二注浆孔的一端与注浆管连通，第二注浆孔的另一端与扩散翼连通。桩尖和扩散翼让混凝土浆液灌浆后形成的扩大头整体结构和浆液蔓延方向可控，从而获取结构更稳定的扩大头，增强扩大头的承载力；且扩散翼能够使得大部分浆液沿扩散翼的方向扩散开，能够增大混凝土浆液的扩大面积，从而进一步增强承载力和抗拔力。
Prefabricated tubular pile with pile bottom expanding device and construction method
The invention discloses a prefabricated tubular pile with a pile bottom expanding device and a construction method, the prefabricated tubular pile comprises a hollow pile body, a grouting pipe, a pile tip and a diffusion wing, the grouting pipe is nested in an internal hollow structure of the hollow pile body, the pile tip is arranged at the bottom of the grouting pipe, a first grouting hole is formed in the pile tip, one end of the first grouting hole is communicated with the grouting pipe, and the other end of the first grouting hole is communicated with the diffusion wing. The other end is led into the stratum structure; the diffusion wing is hinged to the bottom of the grouting pipe, and the diffusion wing can be folded or unfolded along the hinged position; a second grouting hole is formed in the grouting pipe, one end of the second grouting hole communicates with the grouting pipe, and the other end of the second grouting hole communicates with the diffusion wing. The pile tip and the diffusion wing enable the expansion head integral structure formed after concrete grout grouting and the grout spreading direction to be controllable, so that the expansion head with a more stable structure is obtained, and the bearing capacity of the expansion head is enhanced; and the diffusion wings can enable most of the grout to be diffused in the direction of the diffusion wings, and the expansion area of the concrete grout can be increased, so that the bearing capacity and the pulling resistance are further enhanced.
本发明公开了一种带有桩底扩大装置的预制管桩及施工方法，包括中空桩身、注浆管、桩尖和扩散翼，注浆管嵌套于中空桩身的内部中空结构内，桩尖设置于注浆管底部，且桩尖上开设有第一注浆孔，所述第一注浆孔一端与注浆管连通，另一端通入地层结构内；扩散翼铰接于注浆管底部，且扩散翼能沿铰接处收拢或展开；注浆管上开设有第二注浆孔，第二注浆孔的一端与注浆管连通，第二注浆孔的另一端与扩散翼连通。桩尖和扩散翼让混凝土浆液灌浆后形成的扩大头整体结构和浆液蔓延方向可控，从而获取结构更稳定的扩大头，增强扩大头的承载力；且扩散翼能够使得大部分浆液沿扩散翼的方向扩散开，能够增大混凝土浆液的扩大面积，从而进一步增强承载力和抗拔力。
Prefabricated tubular pile with pile bottom expanding device and construction method
一种带有桩底扩大装置的预制管桩及施工方法
ZHAO HONGWEI (author) / CAI ZHI (author) / YU SIYE (author) / HUANG HE (author) / WU XIAOQIANG (author) / HAO FENG (author) / REN XIAOQIANG (author) / CHEN DELI (author) / YANG SHUQIANG (author) / FAN SONGYAO (author)
2024-12-06
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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