JP3452429B2 - Lateral breakwater - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a horizontal-type breakwater that cuts and opens a waterway such as a navigation channel or a flood control channel by laterally moving a door body. Things. 2. Description of the Related Art Conventionally, as this type of breakwater (gate), for example, a vertical up-and-down type breakwater in which a gate post is erected on both sides of a water channel and a door body is arranged between both gate posts so as to be able to move up and down. Is provided. [0003] However, according to the above-described vertical lift type breakwater, a high-rise building such as a gate post or an operation tower is required, which is aesthetically unfavorable. Is required, so that the whole is expensive. On the other hand, a horizontal pull-type breakwater for laterally moving the door body is also provided. In this case, the support condition of the door body at the time of opening and closing operation is different from the support condition at the time of fully closing (both ends supported). Since only the side is supported, the operating conditions are greatly restricted. Thus, its use is very limited, such as in land locks (such as tide gates, which operate without water when operated and in the atmosphere). Accordingly, an object of the present invention is to provide a horizontal-type breakwater which can be inexpensively applied to places where operating conditions are severe by improving supporting conditions during operation. It is what it was. [0005] In order to achieve the above-mentioned object, according to the present invention, a horizontal pull-off breakwater according to the first aspect of the present invention moves a door body laterally to cut off and open a water channel. A horizontal break type breakwater that performs, and a door body is configured to be able to move laterally between a water channel and a dock formed on the side thereof through a bogie portion provided at one upper end thereof, A drive device for laterally moving the door body is provided, and a support beam extending toward the opposite shore side is provided integrally from the upper end of the other end of the door body.
A support device for fitting and supporting the support beam and a door groove into which the other end of the door body is fitted are provided. Therefore, according to the first aspect of the present invention, at all times, the bogie section is moved backward to make the door enter the dock and the water channel is fully opened. When the waterway is blocked by the door, the door in the dock is moved sideways toward the opposite shore by the operation of the driving device. That is, in the lateral pulling movement, first, the support beam integrated with the door body is moved laterally toward the opposite shore at an upper position where no wave pressure is generated in the waterway. At this time, even if wind pressure acts on the support beam, which is a cantilevered overhanging beam, the bogie portion and the connecting portion of the support beam become wind pressure support points, and can resist the wind pressure. [0007] By this lateral movement, the free end of the support beam reaches the opposite shore and is fitted to the support device, so that both ends of the door body are supported via the support device and the bogie unit. Then, due to the subsequent lateral movement, the door body gets out of the waterway and gradually enters the waterway, and is subjected to a wave pressure action.At this time, the bogie portion and the support device portion Serve as wave pressure support points and can resist the wave pressure. In this manner, the water pressure and the wave pressure received by the door during the closing operation (or the opening operation by the reverse operation) of the door can be safely supported at both ends of the door. Then, the operation of the driving device is stopped by inserting the free end of the door into the door groove on the opposite shore. Thus, the door body that completely closed the water channel is subjected to the wave pressure action, but thereafter, the portion forming the door groove and the entrance portion of the dock become the wave pressure support points at both ends of the door body, that is, As a simple support at both ends, it resists the wave pressure and maintains the calmness inside the door body, such as in the harbor. FIG. 1 is a block diagram showing an embodiment of the present invention.
This will be described with reference to FIG. 1, 2, 6, and 7, a waterway 3 such as a navigation channel or a flood control channel is formed by one skeleton 1 that forms a part of one bank and another skeleton 2 that forms a part of the other bank. Have been. On one side of the body 1, on the side of the waterway 3, there is formed a dock 4 having the waterway 3 side and the upper surface open, and facing the dock 4, the other body 2 has
A door groove 5 having an open channel 3 and an upper surface is formed. In the dock 4, a float type door 8 is disposed, and fenders 9A and 9B are provided at the front end and the rear of the door 8, respectively. The door body 8 is configured to be able to move laterally between a position where the waterway 3 is shut off and a position stored in the dock 4 via a bogie unit 10 provided at an upper end of one end thereof. That is, a door 8 formed in a rectangular flat frame shape
The bogie unit 10 is connected to the upper end of the
Are integrated with each other, and the bogie unit 10 is connected to one end on the outer side. And on the upper surface side of one skeleton 1,
A pair of guide rails 11 are laid with the open portion of the dock 4 interposed therebetween, and the guide rollers 11 support and guide a traveling roller 12 and a side roller 13 provided on the carriage 10. Further, the upper side of the other end of the door body 8 (the other
On the side), a traveling roller 14 and a side roller 15 supported and guided by the guide rail 11 are provided via a bracket 16. Here, the length L ₁ of the door body 8 in the lateral movement direction is longer than the width W of the water channel 3, that is, L ₁ > W. It is configured to shut off the water channel 3 whose both ends are distributed to the dock 4 and the door groove 5 and to open the water channel 3 stored in the dock 4. A driving device 20 for moving the door 8 laterally (in and out) is provided on one of the frame 1 sides. That is, the driving device 20 is a winch disposed on the back side of one of the frames 1.
21; an end loop body 22 arranged near the water channel 3 of one of the frames 1; and a rope body 23 wound or fed out by the winch 21 and having one end wound around the end loop body 22. ,
It is composed of a plurality of guide wheels 24 arranged near the winch 21 and the like, and ends of a pair of ropes 23 are connected to the bogie unit 10 from front and rear. A support beam 27 is integrally extended from the upper end of the other end of the door 8 toward the other skeleton 2, and a support beam for fitting and supporting the support beam 27 is provided on the other skeleton 2. An apparatus 30 is provided. That is, the support beam 27 has a long frame shape with a rectangular cross section, is integrated with the upper end of the other end of the door body 8, and its length direction is the horizontal movement direction. [0015] Here, overhanging length L ₂ that protrudes from the door body 8 of the support beams 27, Yes almost equal form to the length L ₁ of the door body 8, thus including the width W of the channel 3 The relationship is set to L ₂ ≒ L ₁ > W, whereby the length of the support beam 27 and the door body 8 spans the water channel 3. The projecting position of the support beam 27 and the lateral movement position of the bogie unit 10 are set above the water surface S in a normal state and at a height at which water pressure or wave pressure does not occur during operation. The supporting device 30 is located outside the door groove 5 and is disposed on the upper surface of the other frame 2 and has a frame-shaped frame 32 having an insertion portion 31 formed at the center. ,
It is composed of a plurality of rollers 33 attached to the frame 32 and guiding the four surfaces of the support beam 27. Note that a pair (plurality) of rollers 33 is disposed on each surface, and the frame 32 is fixed to the other skeleton 2 via an anchor 34 or the like. The operation of the above embodiment will be described below. At all times, the water channel 3 is fully opened as shown in FIG. That is, the bogie unit 10 is moved backward, the door body 8 is docked in the dock 4, and all the support beams 27 are positioned above one of the skeletons 1. When the waterway 3 is shut off by the door body 8 from the above state, the winch 21 is operated by the operation of the driving device 20 to take up and unwind the rope body 23. As a result, the traveling rollers 12 and 14 and the guide rollers 13 and 15 are supported and guided by the guide rails 11, and the door 8 stored in the dock 4 is moved toward the other skeleton (counter shore) 2. And let them go out. That is, as shown in FIG.
Is moved laterally toward the other skeleton 2 at an upper position where no wave pressure occurs in the water channel 3. At this time,
Even if the wind pressure acts on the support beam 27 which is a cantilevered overhanging beam, the portion of the bogie unit 10 and the connecting portion of the support beam 27 become the wind pressure support point A and resist the wind pressure. By such a lateral movement, the free end of the support beam 27 reaches the other skeleton 2 and is inserted into the support device 30 through the insertion portion 31 while being guided by the group of rollers 33. The door 8 is in a state where both ends are supported by the support device 30 and the bogie unit 10. After such an insertion,
Subsequent lateral movement causes the door body 8 to start leaving the waterway 3. As a result, the float type door body 8 gradually enters the water channel 3 as shown in FIG. 4 and is subjected to a wave pressure action.
The part 11 and the part of the support device 30 become the wave pressure support point B, which resists the wave pressure, so that even if a wave is generated, the operation can be performed safely and securely without shaking. As described above, when the door 8 is closed (the same applies to the opening operation of the reverse operation), the water pressure or the wave pressure received by the door 8 is safely applied to both ends of the door 8. Can be supported. As shown in FIGS. 1 and 5, when the free end of the door 8 is inserted into the door groove 5 on the opposite shore and reaches a predetermined position, the driving device 20 is operated, that is, the door 8 is moved laterally. Is stopped. The door body 8 having the water channel 3 completely closed in this way is subjected to a wave pressure action.
The portion where the door groove 5 is formed and the entrance portion of the dock 4 of one of the skeletons 1 become wave pressure support points C to both ends of the door body 8 via the fenders 9A and 9B, that is, both ends. As a simple support, it resists the wave pressure and maintains the calmness inside the door body 8 such as in a harbor. The waterway 3 completely closed by the door 8 is
By performing the operation reverse to the above, it can be fully opened. In the above-described embodiment, the drive device 20 is of a tow type using a fixed winch. However, the drive device 20 may be a self-propelled type in which the bogie unit 10 has a drive device. FIG. 8 shows another embodiment of the present invention, in which a bogie unit 10 and a support beam 27 are connected to each other above a door body 8 and are integrally formed. FIG. 9 shows still another embodiment of the present invention, and shows a truss connection type in which an integrated body of the bogie unit 10 and the support beam 27 is integrated via a truss 38 on the upper part of the door body 8. ing. According to the first aspect of the present invention, the following effects can be expected. A. At the time when the door receives the wave pressure during the opening and closing operation,
Since both ends of the door body are supported by the bogie unit and the support beam,
It is possible to withstand a certain amount of wave pressure, and it is possible to reliably and safely operate without wavering even when a wave is generated. As a result, the restrictions on the operating conditions are reduced, and the system can be applied at a low cost to places where the operating conditions are severe. A. The driving device can be operated with, for example, only one winch. The opening / closing operation can be performed simply and quickly. Further, since the driving device is of the horizontal pulling type, for example, the capacity of the winch can be reduced. Can be provided at low cost. C. The bogie's guide structure and drive unit can all be installed at the top of the dock, so there is no need to worry about marine organisms, and inspection can be performed easily.
Maintenance and management can be performed easily. D. High-rise objects such as gate posts and operation towers can be eliminated, and an aesthetically pleasing one can be provided.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an example of an embodiment of the present invention, and is a plan view of a horizontally drawn breakwater when fully closed. FIG. 2 is a vertical sectional front view of the horizontal-type breakwater when it is fully opened. FIG. 3 is a vertical sectional front view of the horizontal breakwater at the start of operation. FIG. 4 is a vertical sectional front view of the horizontal breakwater during operation. FIG. 5 is a vertical sectional front view of the horizontally drawn breakwater when fully closed. FIG. 6 is a side view showing a support structure by a guide rail in the horizontal breakwater. FIG. 7 is a side view of a supporting device in the horizontal-type breakwater. FIG. 8 shows another embodiment of the present invention, and is a front view of a door body in a horizontal-type breakwater. FIG. 9 is a front view of a door body in a horizontal-type breakwater according to still another embodiment of the present invention. [Description of Signs] 1 One skeleton (one shore) 2 The other skeleton (counter shore) 3 Waterway 4 Dock 5 Door groove 8 Door body 10 Cart unit 11 Guide rail 20 Drive unit 21 Winch 27 Support beam 30 Support device 31 Insertion unit 38 Truss L ₁ Door body length L ₂ Support beam overhang length W Waterway width A Wind pressure support point B Wave pressure support point C Wave pressure support point

────────────────────────────────────────────────── ─── Continuing from the front page (73) Patentee 000006208 Mitsubishi Heavy Industries, Ltd. 2-16-5 Konan, Minato-ku, Tokyo (72) Inventor Kunihiro Shinoda 1-35-28-28 Nakashitsu, Nakakura, Sakura City, Chiba Prefecture (72) ) Inventor: Hidemasa Takahama 5-3-28 Nishikujo, Konohana-ku, Osaka-shi, Japan Inside Hitachi Zosen Corporation (72) Inventor Kenichi Hirayama 5-3-28, Nishikujo, Konohana-ku, Osaka-shi, Osaka Hitachi Zosen Corporation (72) Inventor Atsushi Arami 3-1-15 Toyosu, Koto-ku, Tokyo Ishikawajima-Hari Ma Heavy Industries Co., Ltd.Toji Technical Center (72) Inventor Masakazu Ichikawa 39-8-201 Izumi 39-8-201, Abiko City, Chiba Prefecture (72) Invention Person Jun Kawamoto 1 Yawata Kaigan-dori, Ichihara-shi, Chiba Prefecture Mitsui Engineering & Shipbuilding Co., Ltd. Chiba Works (72) Inventor Tohru Kaneko 12 Nishikicho, Naka-ku, Yokohama-shi, Kanagawa Prefecture Mitsubishi Heavy Industries, Ltd. Inside the Yokohama Works (56) References Japanese Utility Model Showa 57-187827 (JP, U) JP 52-40136 (JP, B2) JP 52-49663 (JP, B2) JP 47-98860 (JP , B1) (58) Field surveyed (Int. Cl. ⁷ , DB name) E02B 7/20 102

Claims (1)

(1) A horizontal-type breakwater for moving a door body laterally to block and open a water channel, wherein the door body is provided on an upper end of a bogie. Through the part, while being configured to be able to move laterally between the water channel and the dock formed on its side,
A driving device for laterally moving the door body is provided, and a support beam extending toward the opposite shore side is provided integrally from the upper end of the other end of the door body,
A horizontal-type breakwater, characterized in that a support device that fits and supports the support beam and a door groove into which the other end of the door body fits are provided on the opposite bank side.