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Prestressed pile and reinforcement construction method applied to prestressed pile of deep mucky soil foundation pit
The invention relates to the field of building construction foundation reinforcement, and provides a prestressed pile and a reinforcement construction method applied to the prestressed pile of a deep mucky soil foundation pit, the prestressed pile comprises a prestressed pile body (0), and the prestressed pile body (0) comprises an annular pile wall (1) and a first cone (2) arranged at the bottom end of the annular pile wall (1); the grouting ingress pipe (3) is arranged in the annular pile wall (1) in the axial direction of the prestressed pile body (0), a grouting opening (4) is formed in the annular pile wall (1), and the grouting ingress pipe (3) is communicated with a peripheral sludge layer of the prestressed pile through the grouting opening (4), so that slurry in the grouting ingress pipe (3) is diffused to the peripheral sludge layer of the prestressed pile body. The technical problem that a foundation pit support structure loses efficacy and even collapses due to the fact that a conventional prestressed pile is prone to pile position deviation when encountering a silt stratum in a plastic flow state is solved.
本发明涉及建筑施工地基加固领域，提供一种预应力桩和应用于深厚淤泥质土基坑预应力桩的加固施工方法，预应力桩包括：预应力桩本体(0)，预应力桩本体(0)包括环状桩壁(1)以及设置在该环状桩壁(1)底端的第一椎体(2)；注浆导入管(3)，注浆导入管(3)沿预应力桩本体(0)的轴向设置在环状桩壁(1)中，环状桩壁(1)上设有注浆口(4)，注浆口(4)被设置为将注浆导入管(3)与预应力桩的外周淤泥层连通，以使得注浆导入管(3)中的浆液向预应力桩体的外周淤泥层扩散。本发明解决了由于常规的预应力桩在遇流塑状态的淤泥质地层易发生桩位偏移，导致基坑围护结构失效，甚至坍塌的技术问题。
Prestressed pile and reinforcement construction method applied to prestressed pile of deep mucky soil foundation pit
The invention relates to the field of building construction foundation reinforcement, and provides a prestressed pile and a reinforcement construction method applied to the prestressed pile of a deep mucky soil foundation pit, the prestressed pile comprises a prestressed pile body (0), and the prestressed pile body (0) comprises an annular pile wall (1) and a first cone (2) arranged at the bottom end of the annular pile wall (1); the grouting ingress pipe (3) is arranged in the annular pile wall (1) in the axial direction of the prestressed pile body (0), a grouting opening (4) is formed in the annular pile wall (1), and the grouting ingress pipe (3) is communicated with a peripheral sludge layer of the prestressed pile through the grouting opening (4), so that slurry in the grouting ingress pipe (3) is diffused to the peripheral sludge layer of the prestressed pile body. The technical problem that a foundation pit support structure loses efficacy and even collapses due to the fact that a conventional prestressed pile is prone to pile position deviation when encountering a silt stratum in a plastic flow state is solved.
本发明涉及建筑施工地基加固领域，提供一种预应力桩和应用于深厚淤泥质土基坑预应力桩的加固施工方法，预应力桩包括：预应力桩本体(0)，预应力桩本体(0)包括环状桩壁(1)以及设置在该环状桩壁(1)底端的第一椎体(2)；注浆导入管(3)，注浆导入管(3)沿预应力桩本体(0)的轴向设置在环状桩壁(1)中，环状桩壁(1)上设有注浆口(4)，注浆口(4)被设置为将注浆导入管(3)与预应力桩的外周淤泥层连通，以使得注浆导入管(3)中的浆液向预应力桩体的外周淤泥层扩散。本发明解决了由于常规的预应力桩在遇流塑状态的淤泥质地层易发生桩位偏移，导致基坑围护结构失效，甚至坍塌的技术问题。
Prestressed pile and reinforcement construction method applied to prestressed pile of deep mucky soil foundation pit
预应力桩和应用于深厚淤泥质土基坑预应力桩的加固施工方法
YU ZHIWEI (author) / ZHANG KESHENG (author) / REN BAOSHUANG (author) / HU QINGKANG (author) / ZHAI HAOBO (author) / SONG ZHUOHUA (author)
2023-04-04
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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