JP4182201B2 - Coating block installation method and apparatus - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention mainly relates to a method and apparatus for installing a covering block capable of simultaneously installing a plurality of covering blocks when installing the covering block on a covering surface of a rubble mound.
[0002]
[Prior art]
Conventionally, when installing the covering block 2 such as Tetrapot (registered trademark) on the slope of the rubble mound 1 of the underwater structure as shown in FIG. 11, as shown in the construction flow of FIG. In FIG. 11, the covering block 2 is loaded on the ship of the crane ship 3, transported to the installation position on the sea, the covering blocks 2 are slung one by one by the crane 4 on the ship, suspended, and supported from the submarine ship 5. After the diver 6 gives an instruction and guides to a predetermined installation position, the covering block 2 is bottomed and installed, and the dive wire is removed by the diver 6, and this cycle is repeated to perform the installation operation. It was.
[0003]
However, in the above-described conventional method, since the cycle of installing the covering blocks 2 one by one and installing them at predetermined positions is repeatedly performed, the working time and work cost are increased, and there are many problems in terms of work safety. .
[0004]
[Problems to be solved by the invention]
According to the present invention, when installing the covering block, for example, when installing at least the first layer of the two-layered covering blocks, a plurality of covering blocks can be installed simultaneously. Provided are a method and an apparatus for installing a covering block capable of saving and improving construction efficiency and improving work safety.
[0005]
[Means for Solving the Problems]
The present invention, a plurality of coated blocks arranged in a predetermined position of the ship and transported to the location installation crane ship embarked, the installing hanging jig comprising a plurality of rings which can be mounted to each distal end of the plurality of coated blocks Of a covering block that hangs a plurality of covering blocks on the ship with the lifting jig. In the installation method , when carrying out slinging with a lifting jig consisting of a plurality of rings that can be mounted on the respective tip portions of a plurality of covering blocks to be installed, mounting with different lengths protruding from the peripheral surfaces of the plurality of rings. It consists of a method of installing a covering block in which guides are sequentially attached to the covering block from the longer one.
[0006]
Furthermore, the installation device of the present invention applied to the above-described installation method includes a crane equipped on a ship of a crane ship and a plurality of rings that can be attached to respective tip portions of a plurality of covering blocks arranged on the ship. A covering block installation device comprising a sling jig for hanging and a sling remover capable of lifting the hanging jig after the covering block is installed. It consists of a covering block installation device provided with different mounting guides.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a coating block installation method and apparatus according to the present invention will be described with reference to the drawings.
[0008]
First, FIG. 1 shows a situation where a plurality of, for example, three covering blocks 2 in this embodiment are installed on the slope of the rubble mound 1 by the installation method of the present invention, which is the same as the conventional example of FIG. Although the parts are indicated by the same reference numerals, in this embodiment, as shown in the construction flow diagram of FIG. 2, when the covering block 2 is first loaded on the ship of the crane ship 3, a plurality of (this embodiment) Can be mounted at the tip of each of the three covering blocks 2 installed on the ship as shown in FIG. Each covering block 2 is slung by a hanging jig comprising a ring 7 as shown in the plan view of FIG.
[0009]
Here, the three rings 7 to be attached to the upper end portions of the three covering blocks 2 are provided on the lower peripheral surface of each ring 7, as shown in FIGS. 5, 6, and 7. These mounting guides 10 are provided with different lengths. FIG. 5 shows the ring 7 on the left side of FIG. 3, and FIG. 6 shows the ring at the center of FIG. 7 and FIG. 7 shows the ring on the right side of FIG. 3. The ring 7 of FIG. 6 has a shorter mounting guide 10 than the ring 7 of FIG. The mounting guide 10 is further shortened. For example, the mounting guide 10 may be omitted as shown in FIG. .
[0010]
FIG. 10 shows a state in which the three covering blocks 2 are slung with the hanging jig composed of the above three rings 7 and the like, from the main winding hook 11 of the crane 4 in FIG. While simultaneously suspending the rings 7 with the suspension piece 17 of FIG. 4 through the suspension jig of the square pipe column 12 shown in FIG. 8, the ring 7 of FIG. 5, the ring 7 of FIG. 6, and the ring 7 of FIG. From the ring 7 with the long mounting guide 10 to the ring 7 with the short mounting ring 10 in this order, that is, from the left side to the right side of FIG. Then, each covering block 2 is hung with a sling wire.
[0011]
In this case, the lengths of the mounting guides 10 of the three rings 7 are different. By sequentially mounting the rings 7 on the covering block 2 from the longer one, the slinging operation becomes easier, for example, 1 When three people or two people perform the sling operation, the lower end of the mounting guide 10 of the ring 7 on the left side of FIG. 10 is first held by the tip of the covering block 2, and then the lower end of the mounting guide 10 of the center ring 7 Is held at a higher position than the left side, and finally the right ring 7 is attached to the tip of the covering block 2, so that the three slinging operations can be performed smoothly and efficiently with a small number of people and a safe slinging. Can do.
[0012]
In addition, as shown above, when each of the covering blocks 2 is slung one by one, as shown in FIG. 10 is automatically pulled out in the direction of the arrow U in FIG. 9 by the auxiliary winding hook 14 of the crane 5 shown in FIG. 10, and this sling releasing rope 15 is attached to the ring 7 in FIG. The inside of the provided release rope through-hole 18 is loosened and pulled up.
[0013]
In addition, the sling remover 13 shown in this embodiment can be automatically slung off by pulling up the sling releasing rope 15, but is not limited to this sling remover 13. A sling remover may be used.
[0014]
Further, the three covering blocks 2 are arranged in the state shown in FIG. 3, and the connecting wires 8 are connected to the three covering blocks 2 as shown in FIG. By turning around and stopping both ends, rotation of the three covering blocks is prevented.
[0015]
Next, as shown in the construction flow diagram of FIG. 12, each of the three covering blocks 2 slung through a dedicated hanging jig is assembled in the state of FIG. 3 by the main winding hook 11 of the crane 5. It is suspended through the suspension piece 17 of the ring 7, guided to a predetermined installation position, installed, and after the diver 6 confirms the direction and position of the covering block 2, the sling release rope 15 is pulled up, Remove and lift the lifting jig such as the ring 7 onto the ship.
[0016]
Thereafter, the operation after the staking of the three covering blocks 2 to be installed next on the ship is sequentially repeated with the lifted lifting jig to install the covering block 2 on a predetermined position of the rubble mound 1.
[0017]
By adopting the above-described installation method and apparatus of the present invention, a plurality of covering blocks 2 are arranged in a state where the protruding portions are engaged with each other, arranged on the ship, and a plurality of rings 7 and connecting wires 8 are arranged. It is characterized in that the construction efficiency is improved by integrating a plurality of groups together and installing them simultaneously, but on the lower peripheral surface of a plurality of rings 7 of a hanging jig used for slinging a plurality of covering blocks 2 Another feature of the present invention is that the operation of sequentially attaching the rings to the tips of the plurality of covering blocks 2 can be facilitated because the lengths of the respective mounting guides 10 are changed.
[0018]
The present invention is not limited to the application of the covering block 2 such as the trade name Tetrapot. For example, as long as the covering block 2 can be bitten or combined, any number of covering blocks 2 can be installed simultaneously. It is effective when attaching, and the number of units installed simultaneously can be applied to two or more than two.
[0019]
【The invention's effect】
According to the installation method and apparatus of the present invention described above, a plurality of coating blocks can be installed at the same time, so that the construction cost can be reduced and the construction efficiency can be improved, and the work safety can be improved. Can be improved.
[0020]
Furthermore, at the time of the above installation, by changing the length of the mounting guide of each ring of the hanging jig for mounting with respect to each covering block of the hanging jig when hanging on each of the plurality of covering blocks, It becomes easy and the number of slinging factors can be reduced, and economical and safe construction becomes possible.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a schematic diagram showing an installation construction status in an embodiment to which an installation method of the present invention is applied.
FIG. 2 is a flowchart of installation work by the method of FIG. 1;
FIG. 3 is a plan view showing a state where the three covering blocks of FIG.
4 is a plan view of a ring of the hanging jig of FIG. 1. FIG.
FIG. 5 is an enlarged side view of the left ring of FIG. 3;
6 is an enlarged side view of the center ring of FIG. 3. FIG.
7 is an enlarged side view of the right ring of FIG. 3;
8 is an enlarged plan view of the square pipe column of FIG.
9 is an enlarged explanatory view of the sling remover of FIG.
10 is an overall side view showing the hanging jig of FIG. 1. FIG.
FIG. 11 is a schematic view showing a state of installation by a conventional installation method.
12 is a flow chart of installation work by the method of FIG.
[Explanation of symbols]
2 Covering Block 3 Crane Ship 4 Crane 7 Ring 10 Mounting Guide 11 Catch Remover

Claims (2)

A crane ship loaded with a plurality of covering blocks arranged in place on the ship is transported to the installation location, and slung with a hanging jig consisting of a plurality of rings that can be attached to the tip of each of the plurality of covering blocks to be installed. In the installation method of the covering block, after hanging and installing by a crane at a predetermined installation position, removing the sling, lifting the lifting jig onto the ship, and slugging a plurality of covering blocks on the ship with the hanging jig . When using a hanging jig consisting of multiple rings that can be mounted on the tip of each of the multiple covering blocks to be installed, the mounting guides with different lengths protruding from the peripheral surfaces of the lower rings A method for installing a covering block that is sequentially attached to the covering block from the longest one. A crane mounted on a ship of a crane ship, a sling jig for a sling consisting of a plurality of rings that can be attached to the respective tip portions of a plurality of covering blocks arranged on the ship, and a hanging jig after the covering block is installed In a covering block installation device comprising a sling remover capable of pulling up a mounting block, a covering block installation device in which mounting guides of different lengths are provided to project on each of the lower peripheral surfaces of the plurality of rings of the hanging jig .

Images