Bottomless air bag method underwater dry operation construction system and method
A dry operation and airbag technology, applied in water conservancy projects, underwater structures, artificial islands, etc., can solve the problems of increased safety risks, construction technical difficulties and construction costs, and achieve low construction costs and improve project quality. Effect
Pending Publication Date: 2020-06-26
CCCC FOURTH HARBOR ENG CO LTD +2
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Problems solved by technology
[0002] With the development of society and economy, a large number of construction projects need to be constructed underwater, such as the substructure of a cross-sea bridge, the foundation of an offshore wind turbine station, etc. At present, the relatively mature underwater construction technology mainly includes the conduit method underwater Concrete pouring, cofferdam construction, underwater installation and construction of prefabricated components, etc., but these construction technologies have their own limitations. The most difficult problem to overcome is that with the increase of water depth, the difficulty of construction technology and construction cost will also increase. , the security risk will also increase
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[0055] The physical principles involved in the design and implementation of the present invention are as follows: Image 6 shown.
[0056] Put the cup upside down into the water (the mouth of the bottom cup does not need to be closed), the air in the cup cannot overflow under the action of water pressure, and a waterless environment is formed in the cup.
[0057] According to the liquid pressure calculation formula, p=ρgh, the gas pressure inside the cup is p=ρgH+P 0 (P 0 is atmospheric pressure). The gas pressure inside the cup is equal everywhere, so it can be seen that the pressure at any point on the outer wall of the cup is less than the pressure on the inner wall of the cup. Therefore, it is considered to use flexible materials to sink into the water and fill the interior with air to form a water-free construction environment.
[0058] The buoyancy of the cup is equal to the gravity of the water displaced by the cup. During construction, the larger the volume of the ...
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The invention provides a bottomless air bag method underwater dry operation construction system and method. The system comprises an air bag which is made of a flexible material and is open in the lower part, a annular air bag bottom opening which is made of rigid materials, a balance weight which is arranged on the air bag bottom opening in a pressing mode, a submarine which is used for conveyingconstructors and construction materials, a submarine channel which is arranged below the annular air bag bottom opening and communicated with the inside and the outside of the air bag, and an air compressor, a generator and a concrete pump which are arranged above the water surface. The air bag is under water surface, the bottom opening of the air bag lands on a seabed after leveling construction,the air bag is provided with an inflation inner cavity used for construction operation, the inflation inner cavity is internally provided with an air supply pipe, a cable and a concrete pumping pipewhich penetrate through the air bag to be connected with the air compressor, the motor and the concrete pump above the water surface, and the inflation inner cavity maintains the air inflation pressure matched with the seabed pressure. According to the construction method and system, a waterless operation environment can be formed at any underwater position, the construction quality can be remarkably improved, and compared with cofferdam method construction, the construction method is low in construction cost, safe and controllable.
Description
technical field [0001] The invention relates to the technical field of underwater construction, in particular to the underwater dry operation construction technology. Background technique [0002] With the development of society and economy, a large number of construction projects need to be constructed underwater, such as the substructure of a cross-sea bridge, the foundation of an offshore wind turbine station, etc. At present, the relatively mature underwater construction technology mainly includes the conduit method underwater Concrete pouring, cofferdam construction, underwater installation and construction of prefabricated components, etc., but these construction technologies have their own limitations. The most difficult problem to overcome is that with the increase of water depth, the difficulty of construction technology and construction cost will also increase. , the security risk will also increase. [0003] In order to solve the technical problems of deep water ...
Claims
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IPC IPC(8): E01D21/00E02D29/09
CPCE01D21/00E02D29/06
Inventor 赵学敏胡吉庆桑登峰刘梅梅
Owner CCCC FOURTH HARBOR ENG CO LTD