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A platform for research: civil engineering, architecture and urbanism
Shrinkage pipe type shear stress coordination type spiral steel pipe-cement soil combined structure
The invention relates to a contracted pipe type shear stress coordination type spiral steel pipe-cement soil composite structure which comprises a contracted pipe type shear stress coordination type spiral steel pipe used for being implanted into a cement soil mixing pile, the contracted pipe type shear stress coordination type spiral steel pipe comprises a steel pipe, and the outer side of the steel pipe is slidably sleeved with a steel ring cylinder; spiral blades extending in the axis direction of the steel ring cylinder are arranged on the outer circumferential surface of the steel ring cylinder; the outer circumferential face of the steel pipe is provided with annular blocking protrusions on the upper side and the lower side of the steel ring cylinder respectively, and the blocking protrusions are used for limiting the steel ring cylinder. According to the invention, the design is simple and reasonable, more load is transferred through relative sliding between the spiral blade and the steel pipe, the problem of stress concentration at the joint of the upper spiral blade and the steel pipe is greatly relieved, and the load transfer theory of the stiff cement soil composite pile is better met.
本发明涉及一种缩管式剪应力协调型螺旋钢管‑水泥土组合结构，包括用于植入水泥土搅拌桩中的缩管式剪应力协调型螺旋钢管，缩管式剪应力协调型螺旋钢管包括钢管，所述钢管的外侧滑动套设有钢环筒，所述钢环筒的外圆周面设有沿钢环筒的轴线方向延伸的螺旋叶片；所述钢管的外圆周面于钢环筒的上、下两侧分别设置有环形状的阻隔凸起，所述阻隔凸起用于对钢环筒限位。本发明设计简单、合理，通过螺旋叶片与钢管之间的相对滑动将荷载更多地传递下去，极大地缓解上部螺旋叶片与钢管连接处的应力集中问题，更好地符合劲性水泥土复合桩的荷载传递理论。
Shrinkage pipe type shear stress coordination type spiral steel pipe-cement soil combined structure
The invention relates to a contracted pipe type shear stress coordination type spiral steel pipe-cement soil composite structure which comprises a contracted pipe type shear stress coordination type spiral steel pipe used for being implanted into a cement soil mixing pile, the contracted pipe type shear stress coordination type spiral steel pipe comprises a steel pipe, and the outer side of the steel pipe is slidably sleeved with a steel ring cylinder; spiral blades extending in the axis direction of the steel ring cylinder are arranged on the outer circumferential surface of the steel ring cylinder; the outer circumferential face of the steel pipe is provided with annular blocking protrusions on the upper side and the lower side of the steel ring cylinder respectively, and the blocking protrusions are used for limiting the steel ring cylinder. According to the invention, the design is simple and reasonable, more load is transferred through relative sliding between the spiral blade and the steel pipe, the problem of stress concentration at the joint of the upper spiral blade and the steel pipe is greatly relieved, and the load transfer theory of the stiff cement soil composite pile is better met.
本发明涉及一种缩管式剪应力协调型螺旋钢管‑水泥土组合结构，包括用于植入水泥土搅拌桩中的缩管式剪应力协调型螺旋钢管，缩管式剪应力协调型螺旋钢管包括钢管，所述钢管的外侧滑动套设有钢环筒，所述钢环筒的外圆周面设有沿钢环筒的轴线方向延伸的螺旋叶片；所述钢管的外圆周面于钢环筒的上、下两侧分别设置有环形状的阻隔凸起，所述阻隔凸起用于对钢环筒限位。本发明设计简单、合理，通过螺旋叶片与钢管之间的相对滑动将荷载更多地传递下去，极大地缓解上部螺旋叶片与钢管连接处的应力集中问题，更好地符合劲性水泥土复合桩的荷载传递理论。
Shrinkage pipe type shear stress coordination type spiral steel pipe-cement soil combined structure
缩管式剪应力协调型螺旋钢管-水泥土组合结构
WU XUEZHEN (author) / XIA YAXIN (author) / HUANG MING (author) / DENG TAO (author) / WANG GANG (author) / JIANG SONG (author) / LI DAYONG (author) / WEI JIANGANG (author)
2024-08-02
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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