JP3268199B2 - Floating body launch equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facility for launching a floating body (including a floating body steel shell) from a quay.

[0002]

2. Description of the Related Art In general, a floating body used for offshore construction is constructed in the following procedure. That is, as shown in FIG. 11, after assembling the steel shell 1 ', FIG.
As shown in FIG. 2, concrete is poured by a concrete pump truck M or the like, and a floating body 1 having a hybrid structure made of a steel plate and concrete as shown in FIG. 13 is constructed. Then, as shown in FIG. 13, the floating body 1 is slid by the skid rail 40 and moved to the quay 35 as shown in FIG. 14, and then the crane ship 30 launches the sea surface S. I have.

[0004]

By the way, the floating means for launching a floating body as described above is used to lift a heavy floating body mounted on a quay with a crane ship and then launch it on the sea surface. In addition, a large amount of preparation work is required, a large work space is required, work time is lengthened, there is a problem in safety, and there are problems such as a high crane ship rental fee. The present invention overcomes the above-mentioned problems and provides equipment capable of efficiently and safely launching a floating body (including the case of a floating body steel shell) at low cost. That is the task.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a floating body launching apparatus of the present invention is provided upright from a seabed foundation to an upper sea surface adjacent to a quay wall, and a floating body support is provided therebetween. Left and right support bases arranged to form a space for use, elevating devices mounted on these support bases, respectively, and provided so as to be driven up and down in the floating body support space by the elevating devices. With a floating frame support receiving frame, the support base is constituted by combining a large number of support base units erected at intervals on the submarine foundation, and supported between the support base units. When the elevating device is erected via the plate, the upper ends of the adjacent support units are firmly connected to each other, and the adjacent support units are
The lifting rod of the lifting device is suspended in the gap between the
The lifting support rod is lowered to the lower end of the lifting rod.
It is characterized in that the frame is supported .

[0006] In the floating body launching equipment of the present invention described above, the floating body on the quay is moved by sliding means onto the receiving frame in the floating body supporting space between the left and right supports adjacent to the quay. This eliminates the need for a crane ship and allows the floating body transferred onto the receiving frame to descend onto the sea surface together with the receiving frame by the elevating device to safely launch the water.

[0007] Since the support base is constructed by combining a large number of support base units erected on the seabed foundation adjacent to the quay, the support base is compared with a case where the quay is integral with the quay. easier it is to build a support base, you decrease also construction cost.

Further, since the elevating device is erected between the support base units via a support plate, the combination of the support base units is firmly performed and the strength of the support base is increased. become.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a floating body launching apparatus according to an embodiment of the present invention.
2 is an enlarged perspective view of a part A of FIG. 1, FIG. 3 is a plan view of a receiving frame of the equipment of FIG. 1, and FIG. 4 is a floating view mounted on the receiving frame of the equipment of FIG. It is a principal part front view which shows the launching state of a box, FIGS. 5-10 are explanatory drawings which show the process from the launch of the floating body by the installation of FIG. It is.

As shown in FIGS. 1 and 2, right and left support bases 3, 3 as a main body in the launching facility 2 for the floating body 1 are adjacent to the quay wall 35 from above the seabed foundation 25. And a support frame 4 formed in the space for supporting the floating body formed between the support bases 3 and 3.
Is provided so as to be able to move up and down by a lifting device 5.

Each support 3 is constructed by combining a number of reinforced concrete support units 3a erected on the seabed foundation 25 adjacent to the quay 35, and the elevating device 5 is connected to the support units 3a. It is erected with a support plate 6 interposed therebetween.

The elevating device 5 is erected through the support plate 6 in this manner, so that the adjacent support base units 3a, 3
The upper ends of the a are firmly connected to each other, the elevating rod 5a of the elevating device 5 is suspended from the gap 3b between the two units, and the cross beam 4a of the receiving frame 4 is connected to the lower end of the rod 5a. .

The receiving frame 4 is, as shown in FIGS. 2 and 3,
A plurality of cross beams 4a and a plurality of vertical beams 4b assembled to the cross beams 4a from above and directed to the quay 35, and the vertical beams 4b as upper beam members are mounted on the receiving frame 4 by a sliding method. (Or the floating shell body 1 ') as a skid rail.

As shown in FIG. 1, a skid rail 40 for slidably moving the floating body 1 toward the receiving frame 4 is also provided on the upper surface of the quay wall 35.
The vertical beam 4b as the upper beam member and the skid rail 40 on the quay constitute a sliding means for the floating body 1.

In the floating body launching apparatus of the present embodiment configured as described above, the floating body 1 on the quay 35 is mounted on the left and right support bases 3, 3 adjacent to the quay 35. The floating body 1 moved onto the receiving frame 4 in the body supporting space is moved by the skid rail 40 and the vertical beam 4b as sliding means, eliminating the need for a crane ship. As shown in the drawing, the elevating device 5 descends on the sea surface together with the receiving frame 4 and can safely launch the water. The floating body 1 is driven by a winch traction means or a hydraulic pressing means.

The support 3 is composed of a large number of support units 3a erected on the seabed 25 adjacent to the quay 35.
Since the constructed by combining, easier it is to build a support table 3 in comparison with the case of integral with the quay 35, construction cost
Also it declines. Further, since the elevating device 5 is installed between the support base units 3a, the combination of the support base units 3a is firmly performed, and the strength of the support base 3 is increased.

FIGS. 5 to 10 show that the floating body steel shell 1 'on the quay 35 is launched using the floating body launching equipment of the present embodiment, and the outfitting quay 36 is attached to the steel shell 1'. After casting concrete to complete the floating body 1 as a submerged box,
The steps up to installation on the local seabed 38 are shown in order.

That is, as shown in FIG. 5, first, the floating body steel shell 1 'manufactured on land is transported on the skid rail 40 to the quay 35 by driving means (not shown).
At this time, on the side of the launching facility 2, the lifting frame 5 performs the lifting operation, so that the receiving frame 4 is located above the sea surface S and is at the same level as the skid rail 40 on the quay. The floating body steel shell 1 'sent from the quay 35 side is received on the vertical beam 4b of the receiving frame 4 (FIG. 5).
reference).

Next, when the receiving frame 4 is lowered below the sea level by the lowering operation of the lifting / lowering device 5, the floating body steel shell 1 'comes into contact with water and floats on the sea surface S. Therefore, as shown in FIG. 6, the work of pulling out the floating body steel shell 1 ′ from the launching facility 2 by the tugboat 45 is performed.

Then, the floating steel shell 1 'is towed by the tugboat 45 to make it berth to the outfitting quay 36 as shown in FIG. 7, and then concrete is poured into the bottom of the steel shell 1'. Then, the floating body 1 is completed.

Further, as shown in FIG. 8, the floating body 1 is towed by the tugboat 45, and as shown in FIG.
The floating body 1 is brought to the shore, where concrete is cast on the side wall of the floating body 1 and other unfinished parts. The floating body 1 completed in this manner is installed on the local seabed 38 as shown in FIG.

[0022]

As described above in detail, according to the floating body launching equipment of the present invention, the following effects can be obtained. (1) The floating body on the quay can be moved by the sliding means onto the receiving frame in the floating body supporting space between the left and right support bases adjacent to the quay, eliminating the need for a crane ship. The floating body that has been moved upward is lowered by the lifting device onto the sea surface together with the receiving frame, and can be safely launched. (2) Since the above-mentioned support is constructed by combining a number of support units standing on the seabed foundation adjacent to the quay, it is easier to construct the support compared to the case where it is integrated with the quay. now, it decreases also construction cost. (3) Since the elevating device is installed between the support base units via the support plate, the combination of the support base units is firmly performed, and the strength of the support base is increased.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a floating body launching facility as one embodiment of the present invention.

FIG. 2 is an enlarged perspective view of a main part of FIG.

FIG. 3 is a plan view of a receiving frame in the facility of FIG. 1;

4 is a main part front view showing a launch state of a floating body mounted on a receiving frame in the facility of FIG.

FIG. 5

10 is an explanatory diagram sequentially showing the progress from the launch of the floating body by the equipment of FIG. 1 to the installation of the floating body on the local sea floor.

FIG. 11

FIG. 14 is an explanatory view sequentially showing the process from assembling the steel shell of a conventional floating body to launching water.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Floating body 1 'Floating body steel shell part 2 Launching equipment 3 Support base 3a Support base unit 3b Gap part 4 Receiving frame 4a Cross beam 4b Vertical beam (upper beam member) 5 Elevating device 5a Elevating rod 6 Support plate 25 Submarine foundation 30 Crane ship 35 Quay 36 Outfitting quay 37 Local quay 38 Local submarine 40 Skid rail 45 Tugboat M Concrete pump truck S Sea level

Continuation of the front page (56) References Hikaru 6-1442 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) E02D 23/02

Claims (1)

(57) [Claims] 1. Right and left support stands which are erected from a seabed foundation to an upper sea level adjacent to a quay wall and are arranged so as to form a space for supporting a floating body therebetween, and are respectively mounted on these support stands. And a lifting frame supporting receiving frame provided so as to be driven up and down in the floating body supporting space by the lifting device, and the support stand is spaced apart from each other on the seabed foundation. It is configured by combining a large number of support stand units that are erected in an open state, and the elevating device is erected through a support plate between the support stand units, whereby upper ends of the adjacent support stand units are connected to each other. Are firmly connected to each other between the adjacent support units.
The lifting rod of the lifting device is suspended in the gap,
A floating body launching facility, wherein the floating body supporting receiving frame is supported at a lower end of a rod .