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A platform for research: civil engineering, architecture and urbanism
Pile sinking device for precast pile
The invention discloses a pile sinking device, and particularly relates to a pile sinking device of a precast pile, which comprises a pile tip, a pile head, a pile head, a pile head and a pile head, the pile head comprises a cone and a cylinder, and the relation between the plane diameter d1 of the cone and the diameter d2 of the cylinder is that d1 is greater than or equal to d2; a first spiral blade is arranged on the outer side face of the cylinder and extends in the axis direction of the cylinder. A second spiral blade is arranged on the outer side face of the sleeve and extends in the axis direction of the sleeve; part of the cylinder of the pile tip is screwed into the sleeve from the pipe opening through the cooperation of the external thread section and the internal thread section, the first spiral blade and the second spiral blade are located on the same spiral line, and the diameter of the first spiral blade and the diameter of the second spiral blade are linearly reduced in the drilling direction of the pile sinking device. The technical problem that drilling type pile sinking is achieved through the precast pile is solved, the traditional construction method that the precast pile is pressed into the stratum in a holding or jacking mode is changed, and under the condition of the same bearing capacity of the precast pile, the pile sinking power of the precast pile is only about 1/7 of that of a press-in type construction method.
本发明公开了一种沉桩装置，特别是一种预制桩的沉桩装置，包括：桩尖，包括圆锥体和圆柱体，且圆锥体的平面直径d1与圆柱体的直径d2的关系为d1≥d2；在圆柱体的外侧面上设有螺旋叶片一，并沿着该圆柱体的轴线方向进行延伸；套管，在套管的外侧面上设有螺旋叶片二，并沿着该套管的轴线方向进行延伸；其中，桩尖的部分圆柱体通过外螺纹段与内螺纹段相配合自管口旋入套管内，上述螺旋叶片一和螺旋叶片二在同一螺旋线上，且其直径在沉桩装置的钻进方向上线性减小。其解决了“预制桩实现钻进式沉桩”的技术问题，改变了传统预制桩抱压或顶压入地层中的施工方法，同等预制桩的承载力条件下其沉桩动力仅为压入式施工方法的1/7左右。
Pile sinking device for precast pile
The invention discloses a pile sinking device, and particularly relates to a pile sinking device of a precast pile, which comprises a pile tip, a pile head, a pile head, a pile head and a pile head, the pile head comprises a cone and a cylinder, and the relation between the plane diameter d1 of the cone and the diameter d2 of the cylinder is that d1 is greater than or equal to d2; a first spiral blade is arranged on the outer side face of the cylinder and extends in the axis direction of the cylinder. A second spiral blade is arranged on the outer side face of the sleeve and extends in the axis direction of the sleeve; part of the cylinder of the pile tip is screwed into the sleeve from the pipe opening through the cooperation of the external thread section and the internal thread section, the first spiral blade and the second spiral blade are located on the same spiral line, and the diameter of the first spiral blade and the diameter of the second spiral blade are linearly reduced in the drilling direction of the pile sinking device. The technical problem that drilling type pile sinking is achieved through the precast pile is solved, the traditional construction method that the precast pile is pressed into the stratum in a holding or jacking mode is changed, and under the condition of the same bearing capacity of the precast pile, the pile sinking power of the precast pile is only about 1/7 of that of a press-in type construction method.
本发明公开了一种沉桩装置，特别是一种预制桩的沉桩装置，包括：桩尖，包括圆锥体和圆柱体，且圆锥体的平面直径d1与圆柱体的直径d2的关系为d1≥d2；在圆柱体的外侧面上设有螺旋叶片一，并沿着该圆柱体的轴线方向进行延伸；套管，在套管的外侧面上设有螺旋叶片二，并沿着该套管的轴线方向进行延伸；其中，桩尖的部分圆柱体通过外螺纹段与内螺纹段相配合自管口旋入套管内，上述螺旋叶片一和螺旋叶片二在同一螺旋线上，且其直径在沉桩装置的钻进方向上线性减小。其解决了“预制桩实现钻进式沉桩”的技术问题，改变了传统预制桩抱压或顶压入地层中的施工方法，同等预制桩的承载力条件下其沉桩动力仅为压入式施工方法的1/7左右。
Pile sinking device for precast pile
一种预制桩的沉桩装置
CAO XIN (author) / WANG GAOFENG (author) / TANG ZHENGQIAO (author) / HAN KAN (author)
2022-10-25
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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