JP2552235B2 - Rubble boat - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rubble ship used when constructing a rubble mound such as a mixed breakwater and a rubble breakwater installed in the sea.

[0002]

2. Description of the Related Art As shown in FIG. 5, a mixed breakwater is a rubble mound A formed by stacking rock masses of about 100 kg to 5 tons of rubble on a seabed G in a substantially trapezoidal cross section. The caisson C is sunk and built.

The rubble is transported from a place where a large amount of rocks of good quality can be collected at a point near the point where the mixed breakwater is built. Then, the rock mass is divided into the required size at the sampling point. Usually, the center of rubble mound A is 1
It is made up of rock masses of about 00 kg and one surface of 200 kg to 5 t. In FIG. 5, S1 is the sea surface, S
2 indicates underwater.

By the way, as shown in FIG.
The gut boat 100 shown in is used. This gut ship 1
00 includes a hold 101, a crane 102, and an orange peel bucket or clamshell bucket 103 attached to the hold 102. Then, the rubble stones 104 are grabbed by the orange peel bucket or the clamshell bucket 103, loaded into the hold 101, transported from the collection point to the rubble stone mound construction point, and discarded in a predetermined sea area. The rubble stones 104 discarded in the sea area were spread and leveled by a diver or the like, and piled up in a substantially trapezoidal cross section as shown in FIG.

[0005]

However, when the gut boat 100 is used to carry the rubble stones 104, the rubble stones 104 are replaced by orange peel buckets or clamshell buckets 103.
There is a problem that it is inefficient because it grabs one by one and throws it away. In addition, since it is necessary to mount a large engine on the gut boat 100, the transportation cost of the rubble stone 104 is high, and it is particularly disadvantageous when the collection point of the rubble stone 104 and the point where the rubble mound A is built are distant from each other. Met.

The present invention has been made in view of the above circumstances, and an object thereof is to reduce the manufacturing cost of the ship itself,
Moreover, the cost of transporting rubble stones can be significantly reduced, a large amount of rubble stones can be loaded, and at the construction site of the rubble mound, the rubble stone is provided with an opening / closing mechanism that can efficiently drop the rubble stone into a state close to a trapezoidal cross section Is what you are trying to do.

[0007]

In order to achieve the above object, a rubble ship according to the present invention is constructed by connecting a plurality of units having a rubble loading chamber 3 inside a hull 1 and connecting the plurality of units. The outer peripheral portion and the connecting portion of the unit are formed by the float portion 2, the opening 5 for rubble stones is provided at the bottom of the chamber 3, and two float doors 6 having buoyancy are provided for each opening 5. , One end of the float door 6 is hinged to the cross beam 4 installed in the center of the opening 5, and the hull 1 is provided with an opening / closing mechanism 16 for the float door 6 for each opening 5. Is a fixing bracket 14 fixed to the upper surface of the float 2.
And a rope block 8 which connects the slide block 13 and the other end of the float door 6 to each other, and the opening operation Occasionally, the slide block 13 is separated from the fixing metal fitting 14 to slowly open it by utilizing the weight of the rubble and the buoyancy of the float door 6 itself, and the fixing metal fitting 14 in the closed state.
It is characterized in that the slide block 13 is attached to the.

[0008]

In the present invention, by the opening / closing mechanism 16 for the float door, the slide block 13 which is connected to the float door 6 by the rope-like object 8 is attached to the clasp 1 at sea near the rubble collection point.
The rubble is loaded into the chamber 3 of the hull 1 with the float door 6 closed by engaging with the fixture 14 fixed to the upper surface of the float portion 2 at 5. After loading a predetermined amount of rubble stones into the chamber 3, the towed ship is tow the hull 1 to the construction site of the rubble mound.

After towing the hull 1 loaded with rubble stones to the construction site of the rubble mound, the slide block 13 is separated from the fixing bracket 14 by the opening / closing mechanism 16 to release the float door 6, and the float door 6 is opened due to the weight of the rubble stones. . At this time, since the float door 6 has upward buoyancy, the float door 6 does not open at once but opens little by little. For this reason, the rubble in the chamber 3 does not fall from the opening 5 all at once and is gradually dropped, so that the rubble does not become a pile.

Here, the tow boat 1 is slowly towed by a towing ship. As a result, the rubble stones are scattered in the width of the opening 5, and the rubble stones are dropped in a state close to a trapezoidal cross section at the construction point of the rubble mound.

After dropping all the rubble in the chamber 3, the float door 6
Closes due to its buoyancy. If the rubble is still insufficient, the hull 1 is towed again near the rubble sampling point, and if the rubble is sufficient, the hull 1 is returned to the return destination. Then, the rubble scattered at the construction site of the rubble mound is spread by a diver and leveled to build a rubble mound with a trapezoidal cross section.

As described above, according to the present invention, the structure of the entire ship can be simplified, and an opening 5 for dropping rubble is provided at the bottom of the chamber 3 for loading rubble, and the float door 6 is attached to the opening 5. Since it does not require a crane like a conventional rubble ship and a large-scale rubble drop equipment such as an orange peel bucket or a clamshell bucket, the ship manufacturing cost can be significantly reduced.

Further, according to the present invention, since the outer peripheral portion of the hull 1 is composed of the float portion 2 and the float door 6 is attached to the opening portion 5 provided at the bottom portion of the chamber 3, the buoyancy is large and therefore the towing is small. Since it can be operated using a ship, operating costs can be reduced and a large amount of rubble can be loaded.

Further, by opening the float door 6 at the construction site of the rubble mound and towing the hull 1 by a towing ship,
Since rubble stones can be dropped in the width of the opening 5 and scattered in a shape close to a trapezoid in cross section, rubble stones can be dropped efficiently at the destination, and the diving worker's work of laying rubble stones can be greatly increased. Can be reduced.

Further, in the present invention, the hull 1 is constructed by connecting a plurality of units each having a chamber 3, and the outer peripheral portion of the hull 1 and the joint portion of the units are float portions 2.
It can be applied to a rubble ship of any capacity by changing the number of the float part 2 and the chamber 3 by forming the same.

Further, in the present invention, a horizontal girder 4 is installed in the central portion of the opening 5, and one end of the float door 6 is hinged to the horizontal girder 4 so that the float door 6 is provided in one opening 5. Since it is arranged for one sheet, the strength of the hull 1 can be strengthened by the cross beam 4, and by attaching two float doors 6 to one opening 5, the rubble stones can be made even more uniform. It can be spread in a finely textured manner.

In the present invention, the opening / closing mechanism 16 for the float door is fixed to the upper surface of the float part 2, the slide block 13 is attached to the fixing metal 14 with the engaging member 15, and It is composed of a rope-like object 8 that connects the slide block 13 and the other end of the float door 6, and when the opening operation is performed, the slide block 13 is separated from the fixing bracket 14 to separate the weight of the rubble and the buoyancy of the float door 6 itself. To slowly open it, and when it is closed, the slide block 13 is attached to the fixing bracket 14 on the ship.
The float door 6 can be opened and closed properly, and the structure of the opening and closing mechanism 16 itself can be simplified.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 show an embodiment of the present invention.
2 is a plan view, and FIGS. 2 and 3 are lines D-D and E- in FIG.
A sectional view taken along the line E and FIG. 4 are enlarged sectional views taken along the line FF of FIG.

In the embodiments shown in these drawings, the outer peripheral portion of the hull 1 and the intermediate joint portion are constituted by the float portion 2 having buoyancy.

Inside the hull 1, there is a chamber 3 for loading rubble stones.
Are arranged side by side in the length direction of the hull 1 (three in this embodiment). At the bottom of each chamber 3, an opening 5 for dropping rubble stones is provided. A horizontal girder 4 made of a hollow steel material is installed at the center of each opening 5 in the longitudinal direction. Two float doors 6 are attached to the back toe back through the cross beams 4 in each opening 5.

Each float door 6 is made of a steel plate 6a, has a hollow portion 6b, and has upward buoyancy. One end of each float door 6
Hinged to the bottom of the cross girder 4 via a rotary shaft 7,
The rotary shaft 7 is provided as a fulcrum so that it can be opened and closed.
The other end of each float door 6 is connected to the opening / closing mechanism 16.

Each opening / closing mechanism 16 for the float door has an opening / closing chain or an opening / closing steel rope (hereinafter referred to as "rope-like object") 8.
1, a pulley 9, a slide base 12, a slide block 13, a fixing metal fitting 14 as a fixing member, and a fitting 15 of the slide block 13. One end of the rope-like object 8 is joined to the other end of the float door 6,
The middle part is hung on the pulley 9, and the other end is connected to the slide block 13. The pulley 9 has a float portion 2
Is rotatably supported on the upper part of the bearing via a bearing 10. The pulley 9 and the bearing portion 10 are surrounded by a protective plate 11, and are protected so that when the rubble is loaded into the chamber 3, the rubble is not hit. The slide mount 1
2 has a slope having an upward slope in the direction in which the float door 6 opens, and a stopper 12 ′ for a slide block is provided at the end portion on the pulley 9 side, and further fixed to the upper surface of the float portion 2. There is. The slide block 13 is formed in a saddle type, and is movably mounted along the slope of the slide base 12. The fixing bracket 14
Is fixed to the upper surface of the float portion 2. The engaging tool 15 is engaged with the fixing bracket 14 so that the slide block 13 can be separated. And this opening / closing mechanism 16
When opening the float door 6 from the closed state, the clasp 1
When the slide block 13 is separated from the fixing metal fitting 14 by 5, the slide block 13 is gently opened while pulling the slide block 13 along the slope of the upslope of the slide mount 12 through the rope-like object 8 due to the weight of the rubble in the chamber 3. When all the rubble in the chamber 3 is dropped and then closed, the float door 6 itself closes due to the upward buoyancy, and as the rope-like object 8 loosens, the slide block 13 moves along the slope of the slide mount 12 toward the fixing bracket 14 direction. When the slide door 13 is slid and the float door 6 is fully closed, the slide block 13 can be fixed to the fixing metal fitting 14 by the engagement tool 15.

Next, use and operation will be described. First, when loading rubble, the hull 1 is moored at a place near the rubble collection point, and the float door 6 is fixed in a closed state by the opening / closing mechanism 16 for the float door. That is, the slide block 13 to which the other end of the rope-shaped object 8 in the opening / closing mechanism 16 is coupled is fixed to the fixing metal fitting 14 by the fixing tool 15. In this state, rubble stones are loaded into the room 3 of the hull 1. After loading a predetermined amount of rubble stones into the chamber 3, the tow boat (not shown) tows the hull 1 to the rubble mound construction point.

As described above, the hull 1 loaded with rubble stones is towed to the construction site of the rubble mound, and then the float door 6 is released by the opening / closing mechanism 16 for the float doors. That is, the slide block 13 is separated from the fixing metal fitting 14 by the fastening tool 15 of the opening / closing mechanism 16. When the slide block 13 is separated from the fixing bracket 14, the float door 6 opens due to the weight of the rubble in the chamber 3. At this time, the rope-like object 8 connecting the float door 6 and the slide block 13
The slide block 13 is towed by the slide block 13, and the slide block 13 slides along the slope of the upslope formed on the slide mount 12, and the float door 6 itself has an upward buoyancy force. Instead of opening it, open it little by little. Therefore, the rubble in the chamber 3 is not dropped all at once from the opening 5 provided at the bottom of the chamber 3, but is gradually dropped, so that the rubble does not become a pile. Further, when the float door 6 opens a predetermined opening, the stopper 1 provided at the end of the slide base 12 on the pulley 9 side.
Since the slide block 13 comes into contact with 2'and is stopped at that position, the float door 6 is restricted to the predetermined opening.

With the float door 6 slowly opened,
Slowly tow the hull 1 with a towed vessel. This allows
The rubble will be scattered in the width of the opening 5 provided at the bottom of the chamber 3, and will be dropped in a state close to a trapezoid in cross section at the construction point of the rubble mound.

After dropping all the rubble in the chamber 3, the float door 6 is closed by using buoyancy. As the rope-like material 8 gradually loosens in the process of closing the float door 6, the slide block 13 slides along the slope of the slide base 12 toward the fixing bracket 14. At this time, although not shown, the slide block can be returned toward the fixing bracket 14 by, for example, a manual winch. Then, when the float door 6 is completely closed, the fastening tool 1 of the opening / closing mechanism 16
At 5, the slide block 13 is attached to the fixing bracket 14, and the float door 6 is fixed in the closed state.

If the rubble is still insufficient, the hull 1 is towed again near the rubble collection point, and if the rubble is sufficient, the hull 1 is returned to the return destination.

Then, the rubble stones dropped at the construction point of the rubble mound are spread by a diver and leveled to construct a rubble mound having a substantially trapezoidal cross section.

As can be seen from the above description,
In this embodiment, the structure of the hull 1 can be simplified, and an opening 5 for dumping rubble is provided at the bottom of the chamber 3 for loading rubble, and a float door 6 is attached to this opening 5. It does not require a large-scale rubble dropping facility that is combined with an orange peel bucket or a clamshell bucket attached to it, so that the production cost of the ship can be significantly reduced.

Further, in this embodiment, the rubble loading chamber 3
Since the horizontal girders 4 made of steel are installed in the widthwise middle part of the bottom of the hull 1, the strength of the hull 1 can be enhanced by the horizontal girders 4.

Further, in this embodiment, since the outer peripheral portion of the hull 1 and the intermediate joint portion are composed of the float portion 2 and the float door 6 is attached to the bottom portion of the chamber 3, the buoyancy is large and therefore the towing is small. Because it can be operated by ship,
In addition to reducing operating costs, it is also possible to load large amounts of rubble.

Further, at the construction site of the rubble mound, the float door 6 is gradually opened, and the hull 1 is slowly towed by a towing ship, so that the rubble is dropped at the width of the opening 5, so that the rubble is laid at the destination. Can be dropped efficiently,
Since it can be scattered in a state close to a trapezoidal cross section, and since two float doors 6 are attached to the opening 5 of one chamber 3, it can be scattered more finely in a state where rubble is leveled. Therefore, it is possible to significantly reduce the labor labor required by the diver to level the rubble stones.

In this embodiment, the opening / closing mechanism 16 for the float door is slowly opened by using the weight of the rubble stones acting on the float door 6 and the buoyancy of the float door 6 itself during the opening operation, and in the closed state, the float door 6 is opened. The slide block 13 is attached to the fixing metal fitting 14 fixed to the upper surface of the portion 2 with the attaching tool 15, and the float door 6 is fixed via the rope-like object 8 connecting the slide block 13 and the float door 6. Therefore, the float door 6 can be opened and closed properly, and the structure of the opening and closing mechanism 16 itself can be simplified.

In the above embodiment, the float door 6
Does not need to be watertight with the float 2, and water may enter and leave freely.

The opening / closing mechanism 16 for the float door is not limited to the structure shown in the drawings, and may have any desired function.

Further, in the present invention, the hull 1 may be formed by connecting a plurality of units each having a chamber 3, and the outer peripheral portion of the hull 1 and the joint portion of the units may be formed by the float portion 2. . In this way, a rubble ship of any capacity can be easily constructed by changing the numbers of the float section 2 and the chamber 3.

[0037]

As described above, the rubble ship according to the present invention is formed by connecting a plurality of units having the rubble loading chamber 3 inside the hull 1, and connecting the outer peripheral portion of the hull 1 and the units. A portion is formed by the float portion 2, an opening 5 for dumping rubble is provided at the bottom of the chamber 3, two float doors 6 having buoyancy are provided for each opening 5, and a central portion of the opening 5 is provided. One end of the float door 6 is hinged to the cross girder 4 installed on the
Opening / closing mechanism 16 for float door 6 for each opening 5 on hull 1
The opening / closing mechanism 16 is provided with a fixing member 14 fixed to the upper surface of the float portion 2, a slide block 13 that is fixed to the fixing member 14 with a fixing member 15, the slide block 13 and the float door 6. It is composed of a rope-like object 8 etc. that is connected to each other. When the opening operation is performed, the slide block 13 is separated from the fixing metal fitting 14 to slowly open it by utilizing the weight of the rubble and the buoyancy of the float door 6 itself, and in the closed state. Since the slide block 13 is attached to the fixing bracket 14, it is possible to simplify the structure of the entire rubble ship of any capacity and significantly reduce the production cost. It can be operated by a towed ship, and it can reduce operating costs, and the rubble stones can be made into a more trapezoidal shape at the construction site of the rubble mound, with a more even texture. Kubaramaku it possible, can be performed accurately opening and closing of the float door 6 in opening and closing mechanism 16 which aimed to simplify the structure.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line DD of FIG.

3 is a sectional view taken along line EE of FIG.

FIG. 4 is an enlarged sectional view taken along line FF of FIG.

FIG. 5 is a view showing a rubble mound built on the seabed and a caisson built on it.

FIG. 6 is a vertical cross-sectional view showing a conventional rubble ship.

[Explanation of symbols]

 1 Hull of a rubble ship 2 Float section 3 Chamber for loading rubble rock 4 Cross girder 5 Opening for dumping rubble rock 6 Float door 7 Rotating shaft 8 Rope-like object 9 Pulley 12 Slide mount 13 Slide block 14 Fixing bracket 15 Attachment

Claims (1)

(57) [Claims] 1. A plurality of units having a rubble loading chamber (3) are connected to each other inside a hull (1), and an outer peripheral portion of the hull (1) and a joint portion of the units are floated ( 2), an opening (5) for dropping rubble is provided at the bottom of the chamber (3), and a float door (6) having buoyancy is provided for each opening (5).
One end of the float door (6) is hinged to the cross girder (4) installed at the center of the opening (5), and the hull (1) is floated for each opening (5). An opening / closing mechanism (16) for the door (6) is provided. The opening / closing mechanism (16) includes a fixing metal fitting (14) fixed to the upper surface of the float part (2) and the fixing metal fitting (14).
Slide block (13) that is attached to the attachment tool (15)
And this slide block (13) and float door (6)
It is composed of a rope-like object (8) that connects the other end of the slide block (13) from the fixing bracket (14) during the opening operation, and the weight of the rubble and the float door (6) itself are separated. Use the buoyancy force to slowly open it, and in the closed state, attach the slide block (1) to the fixing bracket (14).
The rubble ship according to claim 1, characterized in that 3) is attached.