一种钢板桩围堰改建加固为钢筋混凝土围堰的结构和施工方法

By installing internal and external support structures on the sheet pile cofferdam and pouring concrete, the sheet pile cofferdam was converted into a reinforced concrete cofferdam, which solved the structural corrosion problem caused by exceeding its service life, realized an economical and efficient conversion method, and reduced the impact on the water area.

CN117364809BActive Publication Date: 2026-07-17CHINA YANGTZE POWER +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA YANGTZE POWER
Filing Date
2023-09-28
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The extended service life of the sheet pile cofferdam has led to accelerated corrosion of the structure, which has severely weakened its overall strength and stability, posing a risk of collapse. The existing demolition and reconstruction plan involves a large amount of work and has a significant impact on the water area.

Method used

By setting up internal support structures, external support structures, and circumferential support I-beams on the sheet pile cofferdam, and combining this with concrete pouring, the sheet pile cofferdam is rebuilt into a reinforced concrete cofferdam, forming a permanent structure.

Benefits of technology

This method enables the economical and efficient conversion of sheet pile cofferdams into reinforced concrete cofferdams without increasing the cofferdam area or occupying water areas, while maintaining structural stability and reducing the impact on the aquatic ecological environment.

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Abstract

本发明公开了一种钢板桩围堰改建加固为钢筋混凝土围堰的结构和施工方法,包括在钢板桩连接弧段的内凹型弧形内壁进行支撑的内支撑结构;还包括钢板桩连接弧段外侧支撑结构;还包括对原有的钢板桩筒体内壁进行环形支撑的钢板桩筒体内部环向支撑工字钢,钢板桩筒体内部环向支撑工字钢沿着钢板桩筒体的高度方向等间距布置;在原有的钢板桩连接弧段的内部浇筑混凝土,并形成连接弧段混凝土;在原有的钢板桩筒体所在部位浇筑混凝土,并形成混凝土筒体。使得超期服役的钢板桩围堰转换为永久性钢筋混凝土结构的导、隔流建筑物,该方法充分利用原有结构和物料,施工便利,对水生态环境影响较小,具备更加显著的优势。
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