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A platform for research: civil engineering, architecture and urbanism
Anti-freezing and anti-thaw collapse pile foundation structure in permafrost region and construction method of anti-freezing and anti-thaw collapse pile foundation structure
The invention relates to an anti-freezing and anti-thaw collapse pile foundation structure in a permafrost region. The pile foundation structure comprises a pile penetrating through a permafrost active layer, a limiting pile casing, a limiting pile casing inner wall, an upper tray, a lower tray and a plurality of tray supports, wherein the limiting pile casing inner wall, the upper tray, the lower tray and the tray supports are arranged in the limiting pile casing and connected together. A steel pipe protection wall is arranged in the inner wall of the limiting protection cylinder; a tension-compression spring is arranged between the upper tray and the lower tray; the tail end of the pile is embedded into the steel pipe retaining wall; a plurality of steering inclined struts are arranged on the lower portion of the inner wall of the limiting protection cylinder and connected with the lower end of the tray support. The upper end of each tray bracket penetrates through the lower tray and the upper tray; a limiting ring is arranged on each tray bracket below the upper tray, and a limiting spring I is arranged between each limiting ring and the top end of the corresponding tray bracket; a limiting spring II fixed through a high-strength bolt is arranged on each tray support above the upper tray. Meanwhile, the invention further discloses a construction method of the pile foundation structure. The method is high in practicability, and cooperative deformation between internal structures in the pile foundation freezing pulling or thaw collapse process is achieved.
本发明涉及一种多年冻土区抗冻拔防融沉的桩基结构，该桩基结构包括穿过多年冻土活动层的桩、限位护筒以及置于限位护筒内连接在一起的限位护筒内壁、上托盘、下托盘和数个托盘支架。限位护筒内壁内设有钢管护壁；上托盘和下托盘之间设拉压弹簧；桩的末端嵌入钢管护壁；限位护筒内壁的下部设有数个转向斜撑，转向斜撑与托盘支架的下端相连；每个托盘支架的上端穿过下托盘、上托盘；上托盘下方的每个托盘支架上设有限位环，该限位环与托盘支架的顶端之间设限位弹簧Ⅰ；上托盘上方的每个托盘支架上设有通过高强螺栓固定的限位弹簧Ⅱ。同时，本发明还公开了该桩基结构的施工方法。本发明实用性强，实现了桩基冻拔或融沉过程中内部结构之间的协同变形。
Anti-freezing and anti-thaw collapse pile foundation structure in permafrost region and construction method of anti-freezing and anti-thaw collapse pile foundation structure
The invention relates to an anti-freezing and anti-thaw collapse pile foundation structure in a permafrost region. The pile foundation structure comprises a pile penetrating through a permafrost active layer, a limiting pile casing, a limiting pile casing inner wall, an upper tray, a lower tray and a plurality of tray supports, wherein the limiting pile casing inner wall, the upper tray, the lower tray and the tray supports are arranged in the limiting pile casing and connected together. A steel pipe protection wall is arranged in the inner wall of the limiting protection cylinder; a tension-compression spring is arranged between the upper tray and the lower tray; the tail end of the pile is embedded into the steel pipe retaining wall; a plurality of steering inclined struts are arranged on the lower portion of the inner wall of the limiting protection cylinder and connected with the lower end of the tray support. The upper end of each tray bracket penetrates through the lower tray and the upper tray; a limiting ring is arranged on each tray bracket below the upper tray, and a limiting spring I is arranged between each limiting ring and the top end of the corresponding tray bracket; a limiting spring II fixed through a high-strength bolt is arranged on each tray support above the upper tray. Meanwhile, the invention further discloses a construction method of the pile foundation structure. The method is high in practicability, and cooperative deformation between internal structures in the pile foundation freezing pulling or thaw collapse process is achieved.
本发明涉及一种多年冻土区抗冻拔防融沉的桩基结构，该桩基结构包括穿过多年冻土活动层的桩、限位护筒以及置于限位护筒内连接在一起的限位护筒内壁、上托盘、下托盘和数个托盘支架。限位护筒内壁内设有钢管护壁；上托盘和下托盘之间设拉压弹簧；桩的末端嵌入钢管护壁；限位护筒内壁的下部设有数个转向斜撑，转向斜撑与托盘支架的下端相连；每个托盘支架的上端穿过下托盘、上托盘；上托盘下方的每个托盘支架上设有限位环，该限位环与托盘支架的顶端之间设限位弹簧Ⅰ；上托盘上方的每个托盘支架上设有通过高强螺栓固定的限位弹簧Ⅱ。同时，本发明还公开了该桩基结构的施工方法。本发明实用性强，实现了桩基冻拔或融沉过程中内部结构之间的协同变形。
Anti-freezing and anti-thaw collapse pile foundation structure in permafrost region and construction method of anti-freezing and anti-thaw collapse pile foundation structure
一种多年冻土区抗冻拔防融沉的桩基结构及其施工方法
YU QIANGSHAN (author) / JU XIN (author)
2023-01-31
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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