Method for producing caisson by using floating dock box

Abstract

The invention relates to a method for producing a caisson by using a floating dock box. The caisson is produced in the floating dock box by using a mass flow production method. After the caisson is produced, the floating dock box can be sunk down conveniently, so the caisson in the floating dock box can float conveniently and the caisson can be put into water conveniently. The floating dock box is a rectangular box body. A middle part in the length direction of the upper part of the floating dock box is depressed downward to form a rectangular caisson production space penetrating through the length direction of the floating dock box. The production of the caisson is conducted on the bottom flat surface of the caisson production space. A buoyancy compartment is arranged in the box body of the floating dock box. A water inlet for filling water and a water outlet for draining water are arranged in the buoyancy compartment. A water pump for filling water into or draining water from the buoyancy compartment is arranged in the floating dock box. The method for producing the caisson by using the floating dock box is suitable for use during shallow sea reclamation and has the advantages of high construction efficiency, low cost and good economic benefit.

Description

technical field [0001] The invention relates to the field of methods for producing caissons from floating docks. Background technique [0002] There are many gentle tidal flat areas along the coast of our country. The seawater is submerged during high tide and exposed to the water surface during low tide. Outside the tidal flat areas, there are gentle shallow sea areas with a water depth of 4-5 meters. The tidal flat areas and shallow sea areas are muddy bottoms, which are difficult for people to enter. It is directly developed and utilized, and is in an idle state. [0003] For example, Tianjin Binhai New Area is the focus of national development and construction, and there are large areas of unused tidal flats along the coast of Tianjin Binhai New Area. Development and construction will occupy a large amount of land. Under the condition that basic farmland is protected by the state, basic farmland cannot be occupied. Reclaiming land from the sea is a way to solve the shor...

AI Technical Summary

Problems solved by technology

[0009] 1. The area of ​​tidal flat area is relatively small, and the area of ​​land reclamation is relatively small, which cannot make full use of the resources in coastal shallow sea areas, and the benefits of reclamation are low

[0010] 2. To blow fill tidal flat areas into land higher than the sea surface, a large amount of sand needs to be blown and filled from a long distance, and the cost of blowing and filling is high, and the investment is large

[0012] 4. Only contiguous land can be formed during dredging and reclamation, and tidal flat areas cannot be directly transformed according to the ideal plan, and land suitable for various purposes cannot be obtained directly

[0021] The disadvantages of the existing land reclamation methods are: to build sea reclamation dams in shallow sea areas, the general construction method is to carry out piling and embankment construction in the sea, or riprap embankment construction. The shallow sea area of ​​Binhai New Area in Tianjin has a depth of 20 meters. The silt layer has a very low bearing capacity, which causes great difficulties for piling or riprap embankment construction. The existing method of strengthening soft soil foundation cannot be carried out at sea.

And it is inconvenient to construct at sea, the construction cost of building sea enclosing dams is high, the investment is large, the efficiency is low, the economic benefit is low, and a large number of offshore operations are affected by wind and waves, and the work is unsafe

Since there is no more advanced and economical land reclamation method, Tianjin Binhai New Area has not adopted the land reclamation method, but has to use the less efficient land reclamation method

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