Steel pipe and corrugated steel plate combined hanging box cofferdam and construction method

[0032] Example 1

[0033] like Figure 1~Figure 3 , Figure 10 As shown, a steel pipe and corrugated steel plate combined hanging box cofferdam includes a bottom mold system and a side plate system connected to the upper part of the bottom mold system, wherein: the bottom mold system includes a plurality of main load-bearing beams 9, corrugated Steel base plate 8, the main load-bearing beams 9 are fixedly connected end to end to form a frame structure, and the corrugated steel base plate 8 is arranged above the frame structure; the side plate system is a box-shaped structure, including a A plurality of vertically arranged steel pipes 1 are distributed, and corrugated steel wall plates 2 are fixedly connected between adjacent steel pipes 1. The axis direction of the steel pipes 1 is perpendicular to the corrugated cross-section of the corrugated steel wall plates 2, so The inside of the box-type structure of the side plate system is provided with a support assembly for supportin

[0035] Example 2

[0036] Preferably, on the basis of Embodiment 1, in this embodiment, as Figure 4 As shown, the corrugated steel wall plate 2 and the steel pipe 1 are fixed by welding, and a stiffening plate 101 is provided at the welding place between the corrugated steel wall plate 2 and the steel pipe 1 .

[0037] In the actual use process, the corrugated steel wall plate 2 and the steel pipe 1 are fixed by welding, and the welding place between the corrugated steel wall plate 2 and the steel pipe 1 is provided with a stiffening plate 101 to ensure the wave shape. The connection strength of the steel wall plate 2 and the steel pipe 1.

[0038] Example 3

[0039] Preferably, on the basis of Embodiment 1, in this embodiment, the thickness of the corrugated steel wall plate 2 is ≥10 mm, the wavelength range of the corrugated steel wall plate 2 is 600-800 mm, and the wave height range is 220-300 mm.

[0040] In the actual use process, the side plate system of the present invention uses the corrugated steel wall plate as the bearing surface. By referring to the corrugated steel plate, the thickness of the corrugated steel wall plate 2 is ≥ 10mm, and the wavelength range of the corrugated steel wall plate 2 is 600-800mm. , the wave height range is 220 ~ 300mm, which reduces the number of connections with the steel pipe, making it have a faster construction speed. Under the condition of satisfying the lateral stiffness, the corrugated steel plate can give full play to the high strength, strong durability, short construction period, Economical features.