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Block assembling type bottomless single-wall steel bushing box cofferdam and construction method thereof

A steel casing and assembled technology, which is applied in artificial islands, water conservancy projects, infrastructure projects, etc., can solve the problems that the overall sinking cannot be realized, and achieve the effect of simple and convenient dismantling operation, cost saving, and simple lifting and sinking

Pending Publication Date: 2017-08-15
中国葛洲坝集团建设工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the integral steel casing cofferdam mentioned in the background technology cannot be fully sunk due to the limitation of lifting equipment and floating cranes on the water

Method used

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  • Block assembling type bottomless single-wall steel bushing box cofferdam and construction method thereof
  • Block assembling type bottomless single-wall steel bushing box cofferdam and construction method thereof
  • Block assembling type bottomless single-wall steel bushing box cofferdam and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] Such as figure 1 As shown, a block-assembled bottomless single-wall steel casing cofferdam includes A-shaped side panels 1, B-shaped side panels 3, C-shaped side panels 2, inner guide beams 4, and inner supports 5.

[0038] Such as figure 2 Shown is a schematic diagram of the elevation of the steel casing cofferdam.

[0039] Such as image 3 As shown, it is the installation sequence of the side panels of the steel box. The installation starts from the upstream side, and the A-type side panel 1 is installed first, and then follows 1A→2B→3B→4C→5B→6B→7B→8B→9A→10B→11B→ In the order of 12C, the installation of the steel box side plates around the platform 8 is completed successively.

[0040] Such as Figure 4~5 The steel box cofferdam shown, the structure of A-type side plate 1 and C-type side plate 2 includes: I10a I-beam 11, L75×50×6 mm angle steel 13, [20a channel steel 12, a-type horizontal stiffening plate 16 , b-type horizontal stiffener 17, c-type horizontal stif...

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Abstract

The invention provides a block assembling type bottomless single-wall steel bushing box cofferdam and a construction method thereof. The steel bushing box cofferdam comprises steel bushing box side plates, side plate connecting devices, inner guide beams and inner supports. The steel bushing box side plates are of ribbed slab structures and comprise steel panels, horizontal stiffening ribs and vertical stiffening ribs, and the steel panels, the horizontal stiffening ribs and the vertical stiffening ribs are integrally welded. The steel bushing box side plates comprise the A-shaped side plates, the B-shaped side plates and the C-shaped side plates. The A-shaped side plates and the C-shaped side plates are used at the corners of the steel bushing box cofferdam. The B-shaped side plates are used on the periphery of the steel bushing box cofferdam. The side plate connecting devices are of female and male connector inserted-connected structures. After female connectors and male connectors are connected in an inserted mode, two groove steel parts opposite to each female connector and the corresponding male connector form a rectangular shaft, fine aggregate concrete is poured in each rectangular shaft, and water stopping structures connected between the adjacent steel bushing box side plates are formed. The block assembling type bottomless single-wall steel bushing box cofferdam is simple in structure, low in manufacturing cost, convenient to assemble and fold and accurate in positioning control, and the steel bushing box side plate joint water stopping devices are convenient and effective.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to the construction technology of bridge pier caps in water, in particular to a block-assembled bottomless single-wall steel casing cofferdam and a construction method thereof. Background technique [0002] Medium and small bridges and overpasses on general highways and high-grade highways have various forms, and their practical effects have been continuously improved. The construction of super-large bridges across large rivers (rivers) and straits (bays) has also been built one after another, providing safe and comfortable road transportation. At the same time, there are more and more bridge piers in the water of bridges crossing rivers and rivers, and the construction technology of underwater caps has also been developed rapidly. At present, the common construction methods of water caps in my country mainly include single (double) wall steel cofferdam, steel sheet pile ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D19/04E02D29/16
CPCE02D19/04E02D29/16
Inventor 李汉涛肖永红余涛刘波杨雷梁文斌梅刚熊明祥倪书兵刘华
Owner 中国葛洲坝集团建设工程有限公司
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