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A platform for research: civil engineering, architecture and urbanism
Permanent and temporary combined cofferdam structure and construction method
The invention provides a construction method of a permanent and temporary combined cofferdam structure, which comprises the following steps: firstly, connecting a high steel casing, welding and assembling a bracket, supporting the bracket and a distribution beam on the casing, and mounting a bottom plate and a bottom keel on the distribution beam; then anti-collision pouring jackets are spliced, and pile casing guides and cofferdam inner supports are installed; hanging rods are welded to the bottom plate, a cofferdam lowering system is installed, and the whole cofferdam is lifted; cutting the pile casing at the position below the inner support, lowering the cofferdam below the position of the cross beam, and mounting and hanging the cross beam; the system is converted, and then the cofferdam lowering system is dismantled; then anti-floating corbels are installed, bottom plate plugging plates are installed, and anti-shear steel bars are welded to the pile casings; a first layer of bottom sealing concrete is poured firstly, and then a second layer of bottom sealing concrete is poured; and finally, structural parts are dismantled. The overall structural strength and stability of the cofferdam structure can be guaranteed, the enclosure requirement and the safety requirement during large-size bearing platform construction are met, and the cost input is greatly reduced.
本发明创造提供了一种永临结合的围堰结构的施工方法，先接高钢护筒，在护筒上焊接拼装牛腿、支撑牛腿及分配梁，分配梁上安装底板和底龙骨；然后拼接防撞套箱，安装护筒导向、围堰内支撑；在底板上焊接吊杆，安装围堰下放系统，将围堰整体提升；切割内支撑下方位置护筒，将围堰下放至十字梁位置以下，安装吊挂十字梁；体系转换，然后拆除围堰下放系统；之后安装抗浮牛腿，安装底板封堵板，护筒上焊接抗剪钢筋；先浇筑第一层封底混凝土，再浇筑二层封底混凝土；最后进行结构件拆除。本发明创造能够确保围堰结构的整体结构强度和稳定性，满足大尺寸承台施工时的围护需要和安全要求，大幅减少了成本投入。
Permanent and temporary combined cofferdam structure and construction method
The invention provides a construction method of a permanent and temporary combined cofferdam structure, which comprises the following steps: firstly, connecting a high steel casing, welding and assembling a bracket, supporting the bracket and a distribution beam on the casing, and mounting a bottom plate and a bottom keel on the distribution beam; then anti-collision pouring jackets are spliced, and pile casing guides and cofferdam inner supports are installed; hanging rods are welded to the bottom plate, a cofferdam lowering system is installed, and the whole cofferdam is lifted; cutting the pile casing at the position below the inner support, lowering the cofferdam below the position of the cross beam, and mounting and hanging the cross beam; the system is converted, and then the cofferdam lowering system is dismantled; then anti-floating corbels are installed, bottom plate plugging plates are installed, and anti-shear steel bars are welded to the pile casings; a first layer of bottom sealing concrete is poured firstly, and then a second layer of bottom sealing concrete is poured; and finally, structural parts are dismantled. The overall structural strength and stability of the cofferdam structure can be guaranteed, the enclosure requirement and the safety requirement during large-size bearing platform construction are met, and the cost input is greatly reduced.
本发明创造提供了一种永临结合的围堰结构的施工方法，先接高钢护筒，在护筒上焊接拼装牛腿、支撑牛腿及分配梁，分配梁上安装底板和底龙骨；然后拼接防撞套箱，安装护筒导向、围堰内支撑；在底板上焊接吊杆，安装围堰下放系统，将围堰整体提升；切割内支撑下方位置护筒，将围堰下放至十字梁位置以下，安装吊挂十字梁；体系转换，然后拆除围堰下放系统；之后安装抗浮牛腿，安装底板封堵板，护筒上焊接抗剪钢筋；先浇筑第一层封底混凝土，再浇筑二层封底混凝土；最后进行结构件拆除。本发明创造能够确保围堰结构的整体结构强度和稳定性，满足大尺寸承台施工时的围护需要和安全要求，大幅减少了成本投入。
Permanent and temporary combined cofferdam structure and construction method
一种永临结合的围堰结构及施工方法
DUAN KUANGSHI (author) / XU YIBIN (author) / WANG DIANWEI (author) / ZHU LINDA (author) / XU YONG (author) / TANG HEDA (author) / QI MENG (author) / SHI GUANGYU (author) / YANG HOON (author) / FAN WEI (author)
2024-10-11
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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