Steel cofferdam caisson

A technology of steel cofferdams and caissons, applied in caissons, water conservancy projects, artificial islands, etc., can solve problems such as safety hazards, construction platform costs, construction period constraints, and increased control difficulties, achieving high water tightness and good water isolation effects , Stable and reliable structure

Pending Publication Date: 2020-08-07
QINGDAO PORT INT +2
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Problems solved by technology

On the one hand, it is more difficult to control the construction quality of underwater concrete (sealing cushion, caisson cover, part of mast pier body) compared with dry work; Formwork construction is extremely difficult. Even if steel box cofferdams are used to solve the underwater assembly of formwork, divers are still required to carry out underwater manual work for the water-stopping measures and reinforcement construction, which poses a large number of safety hazards, and the construction platform T

Method used

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  • Steel cofferdam caisson
  • Steel cofferdam caisson
  • Steel cofferdam caisson

Examples

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Example Embodiment

[0026] The specific embodiments of the present invention are described in detail below. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0027] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right" and other terms indicating the direction or position relationship are based on the direction or position relationship shown in the drawings. It is only for the convenience of description, rather than indicating or implying that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0028] Such as Figure 1-Figure 4 , Figure 6-Figure 9 As shown, the steel cofferdam caisson of this embodiment includes a caisson 10 and a steel cofferdam 20 disposed on the top of the...

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Abstract

The invention discloses a steel cofferdam caisson. The steel cofferdam caisson comprises a caisson body and a steel cofferdam arranged at the top of the caisson body, wherein the steel cofferdam comprises a cofferdam wall; the cofferdam wall is arranged on the outer side of the caisson wall of the caisson body; the cofferdam wall and the caisson wall are connected in a sealed mode through fasteners; the cofferdam wall comprises a plurality of wall bodies which are sequentially connected to form a cuboid shape in a surrounding mode; and a reinforcing support is connected between every two adjacent wall bodies, and every two adjacent wall bodies are connected in a sealed mode through a sealing piece. The steel cofferdam caisson is stable and reliable in structure, high in water tightness, good in water insulation effect and capable of meeting the requirements that the whole steel cofferdam caisson is in a stable state under the extremely high water level condition, and the interior of abin is in a waterless state.

Description

technical field [0001] The invention relates to the technical field of water transport engineering construction, in particular to a steel cofferdam caisson. Background technique [0002] The existing large cap cofferdam construction technology mainly adopts the steel sheet pile cofferdam construction technology. The steel sheet pile cofferdam is located in soft ground such as sand layers, which can be quickly inserted and drilled, convenient for construction, and effectively plays the role of enclosure and waterproofing. After the subgrade treatment is completed, the operation is carried out in the traditional way, that is, caisson prefabrication-transportation and placement-caisson backfill-sealing cushion under water pouring-underwater steel formwork support-reinforcement cage prefabrication and placement-underwater pouring of caissons Cover concrete - mast piers for underwater construction. [0003] The difficulty of using this technology for construction mainly lies in ...

Claims

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Application Information

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IPC IPC(8): E02D19/04E02D23/00E02D31/02E02D29/16
CPCE02D19/04E02D23/00E02D29/16E02D31/02
Inventor 李德修尹洪友贾春田徐立山刘涛张鑫高玉存王斌
Owner QINGDAO PORT INT
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