JPH0430485B2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to an improvement of a floating quay, and more specifically, it provides a floating quay suitable for a place where the exclusive area in a port is small and where the tidal level changes relatively widely. It is.

[Conventional technology]

As shown in FIGS. 6A and 6B, many of the quay walls that have been used in the past have been constructed by dredging a harbor and forming a quay wall 1 having a perpendicular surface thereto. A ship 2 is moored to this type of quay 1 so as to be almost perpendicular to it, and the quay 1 is moored so that there is an appropriate height between the vessel and the top of the quay at high tide (HWL). It is set. Therefore, during low tide (LWL), the distance l between the vessel 2 and the top surface of the quay 1 becomes long, making it difficult to handle cargo. It becomes substantially difficult to utilize this quay 1, and the time during which this quay 1 can be effectively used is limited.

In order to improve the shortcomings of the quay of this structure, as shown in FIG.
A floating pier connected by a ramp 5 has been proposed.

At this floating pier, the ship 2 is placed along the floating body 3.
However, in the case of this floating pier, even if the tide level changes, the floating body 3 follows it and only the slope angle of the ramp 5 changes, so cargo handling is advantageous in that it is not affected by the tide level. .

However, if the floating body 3 is extended perpendicularly to the quay 1,
Furthermore, since the mooring ropes 4 are spread out and stretched laterally, the area occupied by the floating pier within the harbor increases, making it impossible to use it in narrow harbors. In addition, since the ships 2 are moored along both sides of the floating body 3, there is a problem that the number of moored ships 2 is small, and they cannot be used effectively unless the harbor is completely wide.

As a method that does not use floating bodies in ports with large tidal differences, the quay wall 1 is formed in steps as shown in Figure 8, and cargo is handled using appropriate steps of the stairs according to changes in the tide level. There is something I did.

However, in the case of a quay with this structure, extensive dredging and ground improvement work are required, resulting in a long construction period and an increase in construction costs.

[Object of the Invention] The present invention was achieved in order to eliminate the drawbacks of quays constructed in places with large tidal differences, and its purpose is to eliminate the disadvantages of quays constructed in places with large tidal differences. To provide a floating quay wall that hardly requires mooring cables inside the bay and does not require much construction cost.

Furthermore, another object is to provide a floating quay that can easily convert existing quays and seawalls into mooring facilities and that requires a short construction period.

[Summary of the invention]

In order to achieve the above object, the present invention has an upper end A supported by a hinge on an abutment 11 protruding above the sea surface from a quay 10, and a lower end B of two bridges 12 arranged in a V-shape. It is supported on the upper surface of a floating body 13 arranged along the quay 10, and the lower end B is movably engaged with the upper surface of the floating body 13 along a guide rail 14 disposed along the quay 10. 12 to move the floating body 13 to the quay 1
It is a floating quay constructed so that it is moored so as not to move away from the quay 10, although it is allowed to move up and down along the quay 10.

That is, the present invention is characterized in that the floating body is arranged parallel to the quay and the floating body is moored using a bridge. Therefore, another feature is that the bridge and the quay are connected by hinges, and the bridge and the floating body are connected by hinges.

Since the floating body constitutes a substantial quay, it must be sufficiently long in relation to its width, have sufficient area and buoyancy for cargo handling, and be sufficiently safe against sea conditions such as corrosion and typhoons. It is necessary to have In reality, this floating body is often made of concrete.

The bridge in the present invention is not just a bridge,
It constitutes an important member for mooring floating bodies. Therefore, it goes without saying that the bridge has sufficient strength to support the movement of heavy vehicles, but it also has the ability to withstand the forces that cause floating bodies to move away from the quay, approach the quay, or attempt to move along the quay. It is preferable to generate a mooring force sufficient to withstand external forces such as force.

It is preferable that the mooring force of the floating body is exerted by the bridge alone, but if the bridge itself has such strength, the bridge will become larger and the joint between the bridge and the quay will need to be reinforced. If there is a problem, columns for mooring floating bodies can be used as an auxiliary aid.

The connecting part between the bridge and the floating body, which moves up and down as the tide level changes, will move relatively.
The connecting portion needs to adopt a structure that allows the floating body to be moored while allowing this movement.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

In Figures 1 to 3, the existing quay 10
The abutment 11 is extended out, and the crossing bridge 1 is placed on this abutment 11.
One end A of 2 is connected by a hinge, and this bottom bridge 1
The other end B of 2 is connected to the floating body 13 via a hinge.

The other end B is shown in FIG. 4 and FIG.
The roller 16 supported by the guide rail 1
It is configured to guide you in steps 4.

The shaft 15 is provided with a plurality of sliding pressure plates 17, which support the bridge 12 on the floating body 13 while allowing the bridge 12 to move laterally.

Further, an apron 18 is provided between the end of the bridge 12 and the upper surface of the floating body 13 to eliminate a difference in level.

The floating body 13 approaches or moves away from the existing quay 10 due to the current flowing in the bay, but the floating body 1
Fender 2 is installed on the surface facing the existing quay 10 side of 3.
0 is set. A fender 21 is also provided on the side where the ship berths.

The floating quay wall configured as described above allows the floating body 13 to move up and down between 13 and 13' in Figure 2 according to changes in the tide level, and allows ships to berth and cargo to be handled regardless of changes in the tide level. be able to.

〔Effect of the invention〕

The floating quay according to the present invention has an upper end supported by a hinge on an abutment that protrudes above the sea surface from the quay, and the lower ends of two bridges arranged in a V-shape are placed along the upper surface of the floating body. The lower end is movably engaged with the upper surface of the floating body along a guide rail arranged along the quay, and the floating body is moved up and down along the quay by the bridge. It is configured to be moored so as not to move away from the quay, and the following effects can be achieved.

(1) Even if the tide level fluctuates, the floating body follows it, so cargo handling can be carried out despite fluctuations in the tide level.

(2) Since the exclusive area within the port is small and there is no need for mooring lines inside the port, there are no structures that will obstruct moored ships or ships navigating within the port, so there will be less impact on these ships. do not have.

(3) It can be converted into a mooring facility using existing quays and revetments without the need for large-scale on-site construction such as dredging or reclamation, and the construction period is short and economical.

(4) Since the load acting on the floating body is transmitted to the quay side through the fenders, a large mooring device is not required, and since the crossing bridge also serves as a mooring device, it is moored only with the mooring rope (chain) on the quay side. The mooring operation is easy, and it does not get in the way of ships, etc.

[Brief explanation of drawings]

Figures 1 to 5 show embodiments of the present invention; Figure 1 is a plan view of a floating quay, Figure 2 is a plan view of a floating quay;
The figure is a front view of the same, and depicts a state in which the floating body moves up and down. FIG. 3 is a side view. Figure 4 is a detailed view of the X section in Figure 2;
The figure is a detailed view of the Y portion in FIG. 3. 6th
7 and 8 are views showing conventional port facilities, and FIGS. 8 Figure A,
B is a plan view showing a stepped quay. 10... Existing quay, 11... Bridge abutment, 12... Crossing bridge, 13... Floating body, 14... Guide rail, 14
... shaft, 16 ... roller, 17 ... sliding bearing plate.

Claims (1)

[Claims] 1. The upper ends of the two bridges are supported by hinges on abutments that protrude above the sea surface from the quay, and the lower ends of the two bridges arranged in a V-shape are supported on the upper surface of the floating bodies arranged along the quay. The lower end is movably engaged with the upper surface of the floating body along a guide rail arranged along the quay, and the bridge allows the floating body to move up and down along the quay, but it is not allowed to move away from the quay. The floating quay is constructed so that it can be moored.