JPS5920812B2 - Plant barge installation method - Google Patents

Description

[Detailed description of the invention] The present invention relates to a plant barge installation method.

When installing a plant barge such as a power barge, water barge, or pulp barge by towing it to the installation location, it is an effective method to use a pile foundation when the ground at the installation point is soft.

When installing a plant barge, for example, there is a method that takes advantage of the high tide level and pulls the plant barge into the shallowest level onto an already prepared pile foundation, adds ballast to the plant barge, and installs it, or a canal method. Methods such as installing a weir to raise the water level at the installation location and pulling in a flint barge are used.

In the former method, it is necessary to provide a ballast adjustment tank in the plant barge, and even if the ballast is fixed, the cost increases.

The latter method requires extensive on-site civil engineering work.

Considering the above points, the most preferable installation method for a plant barge is to reduce the swamp of the plant barge by some means, or to float the plant barge and install it on the pile foundation, or to lower the installation height of the pile foundation to the plant barge. Adjustments must be made before and after barge installation.

The present invention provides a method for installing a plant barge that is simple and inexpensive and can reliably install a plant barge.One embodiment of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 and 2, the plant barge 1 is towed close to a pile foundation 2 that has been prepared in advance.

Next, a plurality of rubber or plastic tubes 3 are placed on the bottom surface 1a of the plant barge using a supply board and a dipper.

At this time, a piece 4 for stopping the movement of the tube 3 is attached to the bottom surface 1a of the plant barge.

The pieces 4 may span the entire length as shown in the figure, or may be attached at appropriate intervals.

After the tube 3 is placed, the tube 3 is inflated by the air compressor 5, as shown by the solid line in FIG. 3 and the solid line in FIG. 4, and the plant barge 1 is lifted by its buoyancy.

The air compressor 5 may be a floating type as shown in FIG. 3, or may be installed on another ship or installed on the plant barge 1 itself.

With the plant barge 1 sufficiently floating, the plant barge 1 is pulled onto the pile foundation 2 as shown by the imaginary line in FIG. 3.

Note that the tube 3 is arranged so as to be retractable between the piles.

Next, the air in the tube 3 is removed, and as the buoyancy decreases, the plant barge 1 is lowered and installed on the pile foundation 2 as shown by the solid line in FIG. 5 and in FIG. 6.

The tube 3 is then removed.

If the buoyancy is insufficient, install a temporary support 6 on the plant barge 1 as shown in the imaginary line in Figure 5, and use a large (long)
You can use tube 3.

As described above, according to the present invention, it is only necessary to arrange a tube on the bottom of the plant barge to supply and discharge air, so that the plant barge can be installed easily and at low cost.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a side view when the tube is installed, Fig. 2 is a front view of the same, Fig. 3 is a side view when the plant barge is lifted, and Fig. 4 is a front view of the same. , FIG. 5 is a side view when installed, and FIG. 6 is a front view of the same. 1...Plant barge, 1a...Plant barge bottom, 2...Pile foundation, 3...
・Tube, 4...piece, 5...air compressor, 6...temporary support.

Claims (1)

[Claims] 1 Place a tube on the bottom of the plant barge, apply air to this tube and use its buoyancy to lift the plant barge, then pull the plant barge onto the pile foundation, remove the air, let it sink, and lift the plant barge onto the pile foundation. Plant barge installation method installed in