JPH0111799Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a floating dock for manufacturing a concrete caisson used for constructing an embankment body such as a breakwater.

Conventional floating docks for making caissons are shown in Figures 1 and 2.
As shown in the figure, there is a side wall 2 equipped with a crane 3 on both sides of the hull 1, and since this side wall 2 is over 10 m high, if it is hit by strong winds 4 while cruising, the stability of the hull will be lost and it will be dangerous. Furthermore, when a floating dock is moored to a quay when it is not in operation, it may not be possible to arrange sufficient anchorage equipment due to the relationship with other vessels moored adjacent to it, and the hull may be damaged if it is exposed to strong winds while moored. This was dangerous, and it was difficult to take countermeasures against it.

The present invention relates to a floating dock for making caisson which solves the above-mentioned conventional problems.

The object of the invention is to obtain a floating dock which eliminates the above-mentioned drawbacks.

The floating dock of the present invention includes a floating ship body capable of pouring and draining ballast water, a low-height wall part provided on both sides of the floating ship body, and a floating dock that can be attached vertically to the wall parts at the four corners of the floating body. It is characterized by comprising a piece cylinder provided at each corner, and a truss detachably connecting the piece cylinders at each corner.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 3 shows a front view of the floating dock of the present invention, and FIG. 4 shows a plan view thereof.

In the figure, numeral 1 denotes the hull, and inside it is provided a ballast tank that can be filled with water and water like a conventional floating dock. Reference numeral 5 denotes a wall section provided on both sides of the hull 1, and a ballast tank that can be filled with water is provided inside, but the height of this wall section 5 is lower than the height of the side walls of a conventional floating dock. For example, it is less than 1/2 the height. Reference numeral 6 denotes a buoyancy tower installed on the wall 5 at the four corners of the hull 1, and this buoyancy tower is constructed by adding piece cylinders 7 above and below, and the piece cylinder 7 has piping for water injection and drainage inside. There are two types, 7a and 7b without. For example, in Fig. 4, the buoyancy tower 6 located on one diagonal of the hull 1 is assembled with only 7a,
The other diagonally located buoyancy tower 6 is assembled with only 7b. Reference numeral 8 denotes a pump chamber installed on the buoyancy tower 6 assembled with the piece cylinder 7a, and the pump housed inside supplies water to the ballast tanks of the hull 1 and wall part 5 through the water supply pipe in the piece cylinder 7a. Inject water and drain water. The crane 3 is installed on the buoyancy tower 6 assembled with the piece tube 7b.

Reference numeral 9 denotes a steel truss for bridge and reinforcement that connects the buoyancy towers 6, and has a structure that can be attached and detached as necessary.

The floating dock of the present invention is constructed as described above, and when the floating dock is sailing or moored inactive, the buoyant tower 6 is dismantled by the crane 3 as shown in FIG. Since they can be stacked up, the wind pressure area can be reduced even in strong winds, making them safer.

In addition, when manufacturing a caisson using the floating dock of the present invention, the height of the buoyancy tower 6 is adjusted appropriately according to the height of the caisson to be manufactured, and the height of the crane 3 is also adjusted to the optimum height for the work. can be set to allow efficient caisson manufacturing work.

In addition, since low-height walls 5 are provided on both sides of the hull 1, for example, in order to pull out a caisson made inside the floating dock, the floating dock hull can be submerged in the sea until the caisson floats up inside the floating dock. Even if the ship were to sink, resulting in the floating dock becoming submerged in water, the hull would have sufficient restoring force.

[Brief explanation of the drawing]

Figure 1 is a front view of a conventional floating dock, Figure 2 is a sectional view taken along line A-A in Figure 1, Figure 3 is a front view of the floating dock of the present invention, and Figure 4 is a plan view of the floating dock of the present invention. , FIG. 5 is an explanatory diagram of the floating dock when it is sailing or when it is moored inactive. 1...hull, 2...side wall, 3...crane, 4
... Strong wind, 5... Wall, 6... Buoyancy tower, 7...
...piece cylinder, 8...pump chamber, 9...truss.

Claims (1)

[Scope of utility model registration request] A floating body capable of pouring and draining ballast water, a low-height wall provided on both sides of the floating body, and a piece tube provided at the four corners of the floating body so as to be able to be attached vertically to the wall; This floating dock is characterized by consisting of a truss that removably connects the piece cylinders at each corner.