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It's a temporary enclosure, which holds back water. They are normally used for repair/construction of oil rigs and ships. It is mainly used for easy access of ships hulls for torch cutting.

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What is the difference between caisson and a cofferdam?

Difference B/W Cofferdam and Caisson:The main difference between a cofferdam & a caisson is that the former is a temporary structure while the latter forms the part of the permanent work. Following factors are to be considered while making a choice between cofferdam & caisson for a particular foundation work:1. A cofferdam becomes uneconomical in cases where the plan area of the foundation work is small as compared to the depth of water. Under such circumstances, a caisson would prove to be the most suitable.2. At places where cofferdam cannot be dewatered successfully, caissons are used. This may be due to the following reasons:a. depth of water,b. nature of soil to be penetrated, andc. permeability of soil below foundation level,3. The process of constructing a cofferdam is greatly simplified in cases of soils which allow easily the driving of sheet piles. The caissons, on the other hand, are useful where obstructions of boulders would prevent the successful driving of the sheet piles.4. For heavy foundation works which are to be provided at a depth of about 12 to 15 metre below the level of standing water surface, caissons would prove to be more economical than cofferdams.


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What is a type of caisson and cofferdam in construction?

A caisson is a waterproof structure used in underwater construction, typically made of reinforced concrete, which can be open or closed at the bottom. It is designed to hold back water and soil while allowing workers to excavate below the waterline. A cofferdam, on the other hand, is a temporary structure built to create a dry work environment for construction in or near water bodies, effectively isolating the area from surrounding water. Both are essential for foundation work in bridge and pier construction.


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crackly,mishapen


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Awesome!

Related Questions

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They built it for us... :)


What is A type of watertight chamber for repairing a ship?

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What is the difference between caisson and a cofferdam?

Difference B/W Cofferdam and Caisson:The main difference between a cofferdam & a caisson is that the former is a temporary structure while the latter forms the part of the permanent work. Following factors are to be considered while making a choice between cofferdam & caisson for a particular foundation work:1. A cofferdam becomes uneconomical in cases where the plan area of the foundation work is small as compared to the depth of water. Under such circumstances, a caisson would prove to be the most suitable.2. At places where cofferdam cannot be dewatered successfully, caissons are used. This may be due to the following reasons:a. depth of water,b. nature of soil to be penetrated, andc. permeability of soil below foundation level,3. The process of constructing a cofferdam is greatly simplified in cases of soils which allow easily the driving of sheet piles. The caissons, on the other hand, are useful where obstructions of boulders would prevent the successful driving of the sheet piles.4. For heavy foundation works which are to be provided at a depth of about 12 to 15 metre below the level of standing water surface, caissons would prove to be more economical than cofferdams.


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Watertight chamber used for repairing a ship or building bridges beneath the waterline?

Cofferdam


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