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Thin-wall steel casing for deepwater soft soil stratum pile foundation construction and construction method
The invention belongs to the technical field of bridge underwater pile foundation construction, and discloses a thin-wall steel casing for deepwater soft soil stratum pile foundation construction, which comprises a stiffened framework cylinder body consisting of an upper section and a lower section, the upper section comprises a thin cylinder, an upper flange is arranged at the corresponding end of the thin cylinder facing the lower section, the lower section comprises a thick cylinder, and the upper flange is arranged at the corresponding end of the thick cylinder facing the lower section. A lower flange matched with the upper flange is arranged at the corresponding end, facing the upper section, of the thick cylinder, and the upper flange and the lower flange are detachably connected through a bolt assembly; a plurality of transverse stiffening ribs which are distributed at equal intervals are arranged along the axial outer wall of the thin cylinder, are perpendicular to the central axis of the thin cylinder and surround the circumferential direction of the thin cylinder; a plurality of longitudinal stiffening ribs which are distributed at equal intervals are arranged along the axial outer wall of the thin cylinder, are parallel to the central axis of the thin cylinder and radially surround the thin cylinder; the end, away from the upper flange, of the thin cylinder is wrapped with a top opening reinforcing cylinder. According to the construction thin-wall steel casing, through the assembly structure of the movable upper section and the fixed lower section, the construction thin-wall steel casing is convenient to mount and dismount, the bearing capacity of part of the casing in water can be ensured, the repeated utilization rate of the construction thin-wall steel casing can be improved, and the stability and reliability of connection between the construction thin-wall steel casing and a cement mixing pile can be improved. The invention further discloses a deepwater soft soil stratum pile foundation construction method.
本发明属于桥梁水中桩基施工技术领域，公开了一种深水软土地层桩基施工用薄壁钢护筒，由上节段、下节段组成的加劲性骨架筒体，上节段包括有薄筒，薄筒在面向下节段的对应端设有上法兰，下节段包括有厚筒，厚筒在面向上节段的对应端设有与上法兰相配对的下法兰，且上法兰与下法兰通过螺栓组件拆卸地连接；沿薄筒的轴向外壁并与之中轴线垂直、且周向环绕有多道等距分布的横向加劲肋；沿薄筒的轴向外壁并与之中轴线平行、且径向围绕有多条等距分布的纵向加劲肋；薄筒在背离上法兰的背离端包裹有顶口加固筒。本施工薄壁钢护筒通过活动式上节段与固定式下节段的装配结构，方便其安装及拆除，不仅可确保水中部分护筒承载力，还能提高其重复利用率，及其与水泥搅拌桩之间连接的稳定可靠性。本发明还公开了一种深水软土地层桩基施工方法。
Thin-wall steel casing for deepwater soft soil stratum pile foundation construction and construction method
The invention belongs to the technical field of bridge underwater pile foundation construction, and discloses a thin-wall steel casing for deepwater soft soil stratum pile foundation construction, which comprises a stiffened framework cylinder body consisting of an upper section and a lower section, the upper section comprises a thin cylinder, an upper flange is arranged at the corresponding end of the thin cylinder facing the lower section, the lower section comprises a thick cylinder, and the upper flange is arranged at the corresponding end of the thick cylinder facing the lower section. A lower flange matched with the upper flange is arranged at the corresponding end, facing the upper section, of the thick cylinder, and the upper flange and the lower flange are detachably connected through a bolt assembly; a plurality of transverse stiffening ribs which are distributed at equal intervals are arranged along the axial outer wall of the thin cylinder, are perpendicular to the central axis of the thin cylinder and surround the circumferential direction of the thin cylinder; a plurality of longitudinal stiffening ribs which are distributed at equal intervals are arranged along the axial outer wall of the thin cylinder, are parallel to the central axis of the thin cylinder and radially surround the thin cylinder; the end, away from the upper flange, of the thin cylinder is wrapped with a top opening reinforcing cylinder. According to the construction thin-wall steel casing, through the assembly structure of the movable upper section and the fixed lower section, the construction thin-wall steel casing is convenient to mount and dismount, the bearing capacity of part of the casing in water can be ensured, the repeated utilization rate of the construction thin-wall steel casing can be improved, and the stability and reliability of connection between the construction thin-wall steel casing and a cement mixing pile can be improved. The invention further discloses a deepwater soft soil stratum pile foundation construction method.
本发明属于桥梁水中桩基施工技术领域，公开了一种深水软土地层桩基施工用薄壁钢护筒，由上节段、下节段组成的加劲性骨架筒体，上节段包括有薄筒，薄筒在面向下节段的对应端设有上法兰，下节段包括有厚筒，厚筒在面向上节段的对应端设有与上法兰相配对的下法兰，且上法兰与下法兰通过螺栓组件拆卸地连接；沿薄筒的轴向外壁并与之中轴线垂直、且周向环绕有多道等距分布的横向加劲肋；沿薄筒的轴向外壁并与之中轴线平行、且径向围绕有多条等距分布的纵向加劲肋；薄筒在背离上法兰的背离端包裹有顶口加固筒。本施工薄壁钢护筒通过活动式上节段与固定式下节段的装配结构，方便其安装及拆除，不仅可确保水中部分护筒承载力，还能提高其重复利用率，及其与水泥搅拌桩之间连接的稳定可靠性。本发明还公开了一种深水软土地层桩基施工方法。
Thin-wall steel casing for deepwater soft soil stratum pile foundation construction and construction method
一种深水软土地层桩基施工用薄壁钢护筒及施工方法
LU GUANNAN (author) / XIAO XIANGRONG (author) / LI LINGYU (author) / HUANG CAN (author) / LIU ZHIHONG (author) / HAN MINHUI (author) / HU WENQUAN (author) / WANG YUHANG (author)
2024-06-18
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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