A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Fabricated caisson cofferdam dismantling method
The invention relates to an assembly type caisson cofferdam dismantling method which comprises the specific steps that small rabbets between caissons are treated in two times, firstly, the position of a small rabbet water stop belt is treated in the excavation process, and then small rabbet plastic concrete is treated after a temporary breast wall is dismantled; a down-the-hole hammer is used for punching a hole in the tongue-and-groove position between the permanent breast wall and the temporary breast wall, so that the small tongue-and-groove between the caissons and the tongue-and-groove between the permanent breast wall and the temporary breast wall form a continuous section; a milling excavator and a flat bucket excavator are used for dismantling the small tongue-and-groove water stop belt and the small tongue-and-groove plastic concrete between the caissons; caisson large tongue-and-groove treatment is conducted, specifically, large tongue-and-groove block stones between caissons are excavated out through a flat bucket excavator; the finish rolling deformed steel bars above the caisson are dismantled; rock ballast in the caisson grids is excavated; and integrally hoisting and removing the upper structure of the caisson by using a working platform, and placing the caisson in a fixed storage area. The construction operability and safety are high, the cost input is low, the construction efficiency is high, and the quality is guaranteed.
本发明是一种装配式沉箱围堰拆除方法，具体步骤为：沉箱间小企口处理：分两次进行，首先在开挖过程中进行小企口止水带位置的处理，临时胸墙拆除完成后再进行小企口塑性混凝土的处理；使用潜孔锤在永久胸墙和临时胸墙之间的企口位置打设孔洞，使沉箱间小企口与永久胸墙、临时胸墙之间的企口形成连续切面；使用铣挖机、扁斗挖掘机进行沉箱间小企口止水带和小企口塑性混凝土的拆除；沉箱大企口处理：使用扁斗挖掘机进行沉箱间大企口块石的挖除；拆除沉箱上方的精轧螺纹钢；对沉箱仓格内部的石渣进行开挖；使用吊船对沉箱上部结构进行整体吊除并放置在固定储存区域。本发明施工可操作性及安全性高，成本投入较低，施工效率高且质量有保证。
Fabricated caisson cofferdam dismantling method
The invention relates to an assembly type caisson cofferdam dismantling method which comprises the specific steps that small rabbets between caissons are treated in two times, firstly, the position of a small rabbet water stop belt is treated in the excavation process, and then small rabbet plastic concrete is treated after a temporary breast wall is dismantled; a down-the-hole hammer is used for punching a hole in the tongue-and-groove position between the permanent breast wall and the temporary breast wall, so that the small tongue-and-groove between the caissons and the tongue-and-groove between the permanent breast wall and the temporary breast wall form a continuous section; a milling excavator and a flat bucket excavator are used for dismantling the small tongue-and-groove water stop belt and the small tongue-and-groove plastic concrete between the caissons; caisson large tongue-and-groove treatment is conducted, specifically, large tongue-and-groove block stones between caissons are excavated out through a flat bucket excavator; the finish rolling deformed steel bars above the caisson are dismantled; rock ballast in the caisson grids is excavated; and integrally hoisting and removing the upper structure of the caisson by using a working platform, and placing the caisson in a fixed storage area. The construction operability and safety are high, the cost input is low, the construction efficiency is high, and the quality is guaranteed.
本发明是一种装配式沉箱围堰拆除方法，具体步骤为：沉箱间小企口处理：分两次进行，首先在开挖过程中进行小企口止水带位置的处理，临时胸墙拆除完成后再进行小企口塑性混凝土的处理；使用潜孔锤在永久胸墙和临时胸墙之间的企口位置打设孔洞，使沉箱间小企口与永久胸墙、临时胸墙之间的企口形成连续切面；使用铣挖机、扁斗挖掘机进行沉箱间小企口止水带和小企口塑性混凝土的拆除；沉箱大企口处理：使用扁斗挖掘机进行沉箱间大企口块石的挖除；拆除沉箱上方的精轧螺纹钢；对沉箱仓格内部的石渣进行开挖；使用吊船对沉箱上部结构进行整体吊除并放置在固定储存区域。本发明施工可操作性及安全性高，成本投入较低，施工效率高且质量有保证。
Fabricated caisson cofferdam dismantling method
一种装配式沉箱围堰拆除方法
KANG SONGTAO (author) / WANG KUN (author) / LI XU (author) / ZHOU SONGQIN (author) / LIU YU (author) / WANG ZIWEI (author) / WU YUEZHEN (author) / GUO QILI (author) / ZHANG HAN (author) / WANG XIAOSHU (author)
2023-04-11
Patent
Electronic Resource
Chinese
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