JP6978798B2 - Rubble mound construction system and rubble mound construction method - Google Patents

Description

The present invention relates to a technique for constructing a rubble mound on the seabed, which is the basis of a harbor structure such as a breakwater.

Conventionally, a rubble mound, which is the basis of a harbor structure such as a breakwater, has been constructed on the seabed using, for example, a rubble drop pontoon and a gut ship shown in Patent Document 1.

The rubble drop pontoon has an opening in which rubble thrown from above the sea is dropped on the seabed. The gut ship is equipped with a crane with a clamshell attached. In addition, rubble is loaded on the gut ship.

The rubble drop pontoon will be moored at the location (at sea) according to the position where the rubble mound will be constructed. The gut ship will come alongside the rubble drop pontoon, and the rubble grabbed by the clamshell from above the sea will be thrown into the opening of the rubble drop pontoon. The rubble stones thrown into the opening of the rubble drop pontoon are dropped on the seabed and accumulated to build a rubble mound.

In addition, a pollution prevention fence is attached to the rubble drop pontoon so as to surround the opening. The anti-contamination fence is hung on a rubble drop pontoon. The anti-contamination fence prevents the rubble thrown into the opening of the rubble drop pontoon from being washed away by the tidal current. The anti-pollution fence is used to control the water pollution in the surrounding sea area due to the construction of the rubble mound.

Japanese Unexamined Patent Publication No. 2007-63959

However, on the sea, waves change due to environmental changes such as wind speed and tide level, and impacts caused by the injection of rubble. The rubble drop vessel and gut vessel swing in response to changes in waves at sea. Then, as shown in Patent Document 1, when constructing the rubble mound, the gut ship comes alongside the rubble drop pontoon, and the rubble grabbed by the clamshell from the sea side is the opening of the rubble drop pontoon. It is thrown into. For this reason, when the rubble drop pontoon and the gut ship swing at sea, the contamination prevention fence may be damaged by rubbing against the bottom of the gut ship.

As mentioned above, the anti-pollution fence is used to control the water pollution in the surrounding sea area due to the construction work related to the construction of the rubble mound, so it will be replaced if it is damaged. The replacement of this anti-pollution fence has the problem of delaying the construction of the rubble mound and increasing the construction cost.

An object of the present invention is to provide a technique for suppressing the delay in the construction of the rubble mound and the increase in the construction cost.

The rubble mound construction system of the present invention is configured as follows in order to solve the above problems and achieve the purpose.

The rubble mound construction system is equipped with a gut ship and a rubble drop platform.

The rubble drop pontoon is provided with an opening in which rubble thrown from above the sea is dropped on the seabed, and a polluted water diffusion prevention fence that is suspended and attached to surround the opening. Further, the gut ship is provided with a heavy machine for throwing the loaded rubble into the opening of the rubble drop pontoon from the sea side. Then, the heavy machinery provided on the gut ship throws rubble into the opening of the rubble drop pontoon without the gut ship coming alongside the rubble drop pontoon.

According to the present invention, even if the rubble drop platform and the gut ship swing in response to changes in waves on the sea, it is possible to prevent the polluted water diffusion prevention fence from rubbing against the bottom of the gut ship. As a result, it is possible to prevent the polluted water diffusion prevention fence from being damaged. Therefore, it is possible to prevent the construction of the rubble mound from being delayed or the construction cost from increasing.

Further, a plurality of winches for winding and feeding the connected wires may be provided on the rubble drop pontoon. Different wires are connected to each winch. Also, each wire connects the end not connected to the winch to a different anchor.

With this configuration, the position where the rubble drop pontoon is moored can be adjusted by controlling the winding amount or the feeding amount of the wires connected by each winch. That is, the position where the rubble is dropped can be adjusted by controlling the winding amount or the feeding amount of the wires connected by each winch.

In addition, the first communication unit that performs wireless communication on the rubble drop pontoon, the positioning unit that positions the position of the rubble drop pontoon, and the winch control that winds up and unwinds the connected wire for each winch. With a unit
The gut ship may be provided with a second communication unit for wireless communication and an arithmetic unit for determining the position on the sea where the rubble drop pontoon is moored.

Then, the second communication unit transmits the mooring position of the rubble drop pontoon determined by the arithmetic unit.
Further, the winch control unit is connected to the winch for each winch according to the mooring position of the rubble dropping vessel received by the first communication unit and the position of the rubble dropping vessel positioned by the positioning unit. It may be configured to control the winding amount or the feeding amount of the existing wire.

With this configuration, the position on the sea where the rubble drop pontoon is moored can be adjusted without allocating the worker who operates the winch to the rubble drop pontoon. The rubble drop vessel has an opening and is small, so it is less stable at sea than the gut vessel. Therefore, by not allocating workers to the rubble drop pontoon, it is possible to improve the safety of the construction work related to the construction of the rubble mound.

In addition, the first communication unit transmits the position of the rubble drop pontoon determined by the positioning unit,
Based on the position on the sea where the arithmetic unit determines to moor the rubble drop pontoon and the position of the rubble drop pontoon received by the second communication unit, the wire connected to each winch of the rubble drop pontoon. Calculate the winding amount or feeding amount,
The second communication unit transmits the winding amount or the feeding amount of the connected wire calculated for each winch in the arithmetic unit.
Further, the winch control unit winds or unwinds the wire connected to the winch for each winch according to the winding amount or the unwinding amount of the connected wire received by the first communication unit. It may be controlled or configured.

In this case as well, the position on the sea where the rubble drop pontoon is moored can be adjusted without allocating the worker who operates the winch to the rubble drop pontoon. It is possible to improve the safety of the construction work related to the construction of the rubble mound.

Further, the rubble drop pontoon may be provided with a shape detection unit for detecting the shape of the rubble mound deposited on the seabed. The first communication unit transmits the shape of the rubble mound detected by the shape detection unit, and the arithmetic unit determines the position on the sea where the rubble drop pontoon is moored based on the shape of the rubble mound received by the second communication unit. do.

With this configuration, the position on the sea where the stone-dropping vessel is moored (that is, the position where the rubble is dropped) is determined according to the shape of the rubble mound formed by the rubble dropped on the seabed. Therefore, it is possible to form a rubble mound having an appropriate shape.

According to the present invention, it is possible to prevent the construction of the rubble mound from being delayed or the construction cost from increasing.

It is a schematic diagram which shows the rubble mound construction system which concerns on this example. It is a schematic diagram which shows the rubble mound construction system which concerns on this example. 3 (A) and 3 (B) are views showing a rubble drop pontoon. It is a block diagram which shows the pontoon side control system mounted on a rubble drop pontoon. It is a block diagram which shows the control system on the side of a catgut ship mounted on a catgut ship. FIG. 6A is a horizontal plan view showing a construction area for constructing a rubble mound, and FIG. 6B is a vertical plan view showing a construction area for constructing a rubble mound. It is a flowchart which shows the process of constructing a rubble mound.

Hereinafter, embodiments of the present invention will be described.

1 and 2 are schematic views showing a rubble mound construction system according to this example. FIG. 1 is a horizontal plan view, and FIG. 2 is a vertical plan view. The rubble mound construction system of this example includes a rubble drop vessel 1 and a gut vessel 5. The rubble drop platform 1 is provided with an opening 2. The gut ship 5 is loaded with a crane 51 and a rubble stone 6.

The opening 2 of the rubble drop pontoon 1 may have a prismatic or cylindrical shape in which the size of the opening surface on the sea upper side and the opening surface on the sea floor side are substantially the same, or the opening on the sea floor side. It may have a hopper-shaped shape in which the surface is smaller than the opening surface on the sea surface, or it may have another shape. The opening 2 may have any shape as long as the rubble stone 6 thrown from above the sea is dropped onto the seabed.

Further, a polluted water diffusion prevention fence 11 is attached to the rubble dropping platform 1. The polluted water diffusion prevention fence 11 is hung and attached to the rubble drop pontoon 1 so as to hang down toward the seabed. The polluted water diffusion prevention fence 11 surrounds the opening 2. The rubble stone 6 thrown into the opening 2 from the sea side passes through the inside of the polluted water diffusion prevention fence 11 (the space surrounded by the polluted water diffusion prevention fence 11) when dropped on the seabed. The polluted water diffusion prevention fence 11 prevents the rubble stone 6 thrown into the opening 2 from being washed away by the tidal current, and suppresses water pollution in the surrounding sea area.

A clamshell 52 is attached to the tip of the crane 51 mounted on the gut ship 5. The crane 51 corresponds to the heavy equipment referred to in the present invention. The crane 51 grabs the rubble 6 loaded on the gut ship 5 with the clamshell 52, and throws the rubble 6 grabbed by the clamshell 52 into the opening 2 from the sea side.

In the rubble mound construction system of this example, the rubble drop pontoon 1 is moored substantially directly above the position where the rubble mound is constructed (the position where the rubble 6 is dropped). In this example, the rubble dropping vessel 1 is moored at sea by four wires 21 (21a to 21d). The gut ship 5 throws the rubble 6 into the opening 2 of the rubble drop pontoon 1 by the crane 51. At this time, the gut ship 5 throws the rubble stone 6 in a state where it is not on the side of the rubble stone dropping platform 1. For example, the gut ship 5 is moored at a place about 10 m to 30 m away from the rubble drop pontoon 1, and the rubble 6 is thrown into the opening 2 of the rubble drop pontoon 1 by the crane 51.

As a result, even if the rubble dropping platform 1 and the gut vessel 5 swing in response to changes in waves on the sea, it is possible to prevent the polluted water diffusion prevention fence 11 from rubbing against the bottom of the gut vessel 5. As a result, it is possible to prevent the polluted water diffusion prevention fence 11 from being damaged in the construction of the rubble mound. Therefore, in the rubble mound construction system of this example, it is possible to suppress the situation where the construction required for the construction of the rubble mound is delayed or the construction cost increases.

3 (A) and 3 (B) are views showing a rubble drop pontoon. FIG. 3A is a horizontal plan view, and FIG. 3B is a vertical plan view. FIG. 4 is a block diagram showing a pontoon side control system mounted on a rubble drop pontoon.

The pontoon side control system mounted on the rubble drop pontoon 1 includes a pontoon information processing device 30, a positioning unit 31, a shape detection unit 32, a winch control unit 33, and a wireless communication unit 34. ..

The pontoon information processing device 30 controls a positioning unit 31, a shape detection unit 32, a winch control unit 33, and a wireless communication unit 34. As the pontoon information processing device 30, for example, a personal computer may be used.

The positioning unit 31 positions the position of the rubble dropping vessel 1 by using GPS (Global Positioning System). The positioning unit 31 may use a terminal (GPS terminal) for positioning the current position using GPS. The positioning unit 31 periodically positions the position of the rubble drop pontoon 1 and outputs the determined position to the pontoon information processing device 30.

The shape detection unit 32 uses sound waves as exploration waves and detects the shape of the rubble mound formed on the seabed by detecting the reflected waves. The shape detection unit 32 has a sensor unit 32a that irradiates sound waves and detects reflected waves. As the shape detection unit 32, for example, a sonar device may be used. The shape detection unit 32 periodically detects the shape of the rubble mound formed on the seabed, and outputs the detected shape of the rubble mound to the pontoon information processing device 30.

As described above, the rubble drop vessel 1 is moored at sea by four wires 21 (21a to 21d). A winch 22 (22a to 22d) connecting one end of the wire 21 is mounted on the rubble drop platform 1 for each wire 21. In the example shown in FIG. 3, the wire 21a is connected to the winch 22a, the wire 21b is connected to the winch 22b, the wire 21c is connected to the winch 22c, and the wire 21d is connected to the winch 22d.

Each wire 21 is connected to an anchor (not shown) whose end not connected to the winch 22 is submerged in the seabed. The anchor to which each wire 21 is connected is different. In this example, as shown in FIG. 3, the wires 21a and 21b connected to the winches 22a and 22b provided on the bow side are crossed. Further, the wires 21c and 21d connected to the winches 22c and 22d provided on the stern side are also crossed. In other words, the anchor connecting the wires 21a and 21b is submerged on the seabed so that the wires 21a and 21b intersect. Similarly, the anchor connecting the wires 21c and 21d is submerged on the seabed so that the wires 21c and 21d intersect. As described above, in this example, since the wires 21a and 21b are crossed and the wires 21c and 21d are crossed, the winding amount or the feeding amount of the wires 21a to 21d connected by the winches 22a to 22d can be determined. By adjusting, the position where the rubble drop pontoon 1 is moored can be adjusted by two axes in the length direction and the width direction of the rubble drop pontoon 1.

In this example, four winches 22a to 22d are provided at each of the four corners of the rubble drop pontoon 1, but at any position in the length direction of the rubble drop pontoon 1, both sides in the width direction. It may be provided side by side in twos.

The winch control unit 33 controls the winding or unwinding of the wire 21 connected to the winch 22 for each winch 22.

The wireless communication unit 34 performs wireless communication. The wireless communication unit 34 corresponds to the first communication unit referred to in the present invention.

FIG. 5 is a block diagram showing a catgut ship side control system mounted on the catgut ship. The catgut ship side control system mounted on the catgut ship 5 includes an arithmetic unit 60, a positioning unit 61, a crane control unit 62, and a wireless communication unit 63.

The arithmetic unit 60 controls the positioning unit 61, the crane control unit 62, and the wireless communication unit 63. Further, the arithmetic unit 60 calculates the input amount of the rubble 6 by the crane 51, and for each winch 22a to 22d provided on the rubble dropping platform 1, the wires 21a to 22d connected to the winch 22a to 22d. The winding amount or the feeding amount of 21d is calculated. As the arithmetic unit 60, for example, a personal computer may be used.

The positioning unit 61 positions the position of the gut ship 5 by using GPS (Global Positioning System). Similar to the positioning unit 31 described above, the positioning unit 61 may use a terminal (GPS terminal) for positioning the current position using GPS. The positioning unit 61 periodically positions the position of the gut ship 5, and outputs the positioned position to the arithmetic unit 60.

The crane control unit 62 has an operation amount detection unit (not shown) that detects the operation amount of the handle, lever, pedal, etc. that operates the crane 51, and corresponds to the detected operation amount of the handle, lever, pedal, etc. Controls the movement of the crane 51. The operator (driver) operates the crane 51 by operating a handle, a lever, a pedal, or the like. Further, the crane control unit 62 may also have an automatic operation function for automatically operating the crane 51 according to an instruction from the pontoon information processing device 30.

The wireless communication unit 63 performs wireless communication. The wireless communication unit 63 corresponds to the second communication unit referred to in the present invention.

The transmission and reception of various data between the rubble dropping vessel 1 and the gut vessel 5 is performed by wireless communication between the wireless communication unit 34 and the wireless communication unit 63.

Hereinafter, the process of constructing a waste stone mound on the seabed in the rubble stone mound construction system according to this example will be described.

FIG. 6A is a horizontal plan view showing a construction area for constructing a rubble mound, and FIG. 6B is a vertical plan view showing a construction area for constructing a rubble mound. The construction area (position, length L, and width D) for constructing the rubble mound 100 and the height H of the rubble mound 100 are determined according to the harbor structure such as the breakwater to be constructed. In FIGS. 6A and 6B, the illustration of the gut ship 5 is omitted.

FIG. 7 is a flowchart showing an outline of a process for constructing a rubble mound. The arithmetic unit 60 determines the mooring position for mooring the rubble dropping pontoon 1 based on the position where the rubble 6 is dropped (s1). The position to drop the rubble 6 is determined based on the shape of the rubble mound 100 at that time in the construction area. The shape detection unit 32 periodically detects the shape of the rubble mound 100 in the construction area. Further, the positioning unit 31 periodically positions the position of the rubble dropping vessel 1. The pontoon information processing device 30 uses the wireless communication unit 34 to determine the shape of the rubble mound 100 detected by the shape detection unit 32 and the position of the rubble drop pontoon 1 positioned by the positioning unit 31. Send to 5. The gut ship 5 receives the shape of the rubble mound 100 detected by the shape detection unit 32 and the position of the rubble drop pontoon 1 positioned by the positioning unit 31 in the wireless communication unit 63.

In s1, the arithmetic unit 60 determines the position where the rubble stone 6 needs to be dropped from the shape of the rubble stone mound 100 formed in the construction area at that time, and thereby berths the rubble stone dropping vessel 1. Determine the position. Since the arithmetic unit 60 has received the position of the rubble drop pontoon 1, the absolute position (latitude, longitude) of the rubble mound 100 can be specified by using this position. The mooring position for mooring the rubble drop pontoon 1 determined here is the position where the rubble 6 needs to be dropped.

The arithmetic unit 60 transmits the mooring position of the rubble drop pontoon 1 determined in s1 to the rubble drop pontoon 1 in the wireless communication unit 63. The rubble drop pontoon 1 is a wireless communication unit 34 and receives the mooring position of its own ship.

The pontoon information processing device 30 moves the rubble drop pontoon 1 to the mooring position of its own ship determined in s1 (s2). In s2, the pontoon information processing apparatus 30 bases each wire 21a to 21d based on the current position of the rubble dropping pontoon 1 (position determined by the positioning unit 31) and the mooring position of the own ship received in s1. In addition, the winding amount or the feeding amount is calculated. The pontoon information processing device 30 instructs the winch control unit 33 of the winding amount or the feeding amount of each of the wires 21a to 21d. The winch control unit 33 controls the drive of each winch 22a to 22d according to this instruction, and winds the specified winding amount or the specified feeding amount for each of the wires 21a to 21d.

After that, the arithmetic unit 60 performs an adjustment process for adjusting the deviation between the current position of the rubble dropping vessel 1 (the position determined by the positioning unit 31) and the mooring position of the own vessel received in s1. This adjustment process is a process of adjusting the position of the rubble drop pontoon 1 positioned by the positioning unit 31 so as to be the mooring position of the own ship received in s1. In this adjustment process as well, the pontoon information processing apparatus 30 calculates the winding amount or the feeding amount for each of the wires 21a to 21d, and instructs the winch control unit 33 of this.

When the rubble dropping vessel 1 is moored at the mooring position determined in s1, the rubble 6 is started to be thrown (s3). In s3, the clamshell 52 of the crane 51 grabs the rubble 6 loaded on the gut ship 5, and the rubble 6 grabbed by the clamshell 52 is thrown into the opening 2 of the rubble drop pontoon 1 from the sea side. Start the process of At this time, the gut ship 5 is moored at a place some distance (about 10 m to 30 m) from the rubble drop pontoon 1.

The arithmetic unit 60 periodically receives the shape of the rubble mound 100 detected by the shape detection unit 32 of the rubble drop pontoon 1, and the height of the rubble mound 100 at the mooring position of the rubble drop pontoon 1 at that time is When it is determined that the design height has been reached, the input of the rubble stone 6 started in s3 is stopped (s4, s5).

The arithmetic unit 60 determines whether or not the rubble mound 100 is completed based on the shape of the rubble mound 100 detected by the shape detection unit 32 of the rubble drop carrier 1 (s6). When the arithmetic unit 60 determines that the rubble mound 100 is not completed, it returns to s1 and repeats the above process.

Further, when the arithmetic unit 60 determines that the rubble mound 100 is completed, the arithmetic unit 60 ends this process.

As described above, in the rubble mound construction system according to this example, the gut ship 5 is moored at a place some distance (about 10 m to 30 m) from the rubble drop pontoon 1 and the rubble 6 is dropped on the seabed. That is, the rubble stone 6 is not dropped on the seabed while the gut ship 5 is in contact with the rubble stone drop pontoon 1. As a result, even if the rubble dropping platform 1 and the gut vessel 5 swing in response to changes in waves on the sea, it is possible to prevent the polluted water diffusion prevention fence 11 from rubbing against the bottom of the gut vessel 5. As a result, it is possible to prevent the polluted water diffusion prevention fence 11 from being damaged in the construction of the rubble mound. Therefore, in the rubble mound construction system of this example, it is possible to suppress the situation where the construction required for the construction of the rubble mound is delayed or the construction cost increases.

Further, in this example, the rubble drop platform 1 changes the mooring position by winding or unwinding the wires 21a to 21d by the winches 22a to 22d. Further, the winch control unit 33 controls each winch 22a to 22d according to an instruction from the pontoon information processing device 30, and winds or unwinds the wires 21a to 21d. The pontoon information processing apparatus 30 calculates the winding amount or the feeding amount for each of the wires 21a to 21d according to the mooring position of the rubble dropping pontoon 1 determined by the arithmetic unit 60. In this way, the mooring position of the rubble dropping vessel 1 can be automatically changed. Therefore, even if a worker who operates the winches 22a to 22d to change the mooring position of the rubble dropping vessel 1 is not assigned to the rubble dropping vessel 1, the position on the sea where the rubble dropping vessel 1 is moored can be determined. Can be adjusted. Since the rubble dropping vessel 1 has an opening 2 formed and is small in size, the stability at sea is lower than that of the gut vessel 5. Therefore, by not arranging the workers on the rubble drop pontoon 1, it is possible to improve the safety of the construction work related to the construction of the rubble mound 100.

In the rubble mound 100 formed in this example, the top surface is leveled, the slope level is leveled, and the like. The leveling of the top surface and the leveling of the slope with respect to the rubble mound 100 may be performed, for example, by the process described in Japanese Patent No. 5554366.

Further, in the above example, when the pontoon information processing device 30 calculates the winding amount or the feeding amount of each of the wires 21a to 21d according to the mooring position of the rubble dropping pontoon 1 determined by the arithmetic unit 60. However, the arithmetic unit 60 may be configured to calculate the winding amount or the feeding amount of each of the wires 21a to 21d. That is, the winding amount or the feeding amount of each of the wires 21a to 21d may be calculated by the pontoon information processing apparatus 30 or the arithmetic unit 60.

It should be noted that the present invention is not limited to the above-described embodiment as it is, and at the implementation stage, the components can be modified and embodied within a range that does not deviate from the gist thereof. In addition, various inventions can be formed by an appropriate combination of the plurality of components disclosed in the above-described embodiment. For example, some components may be removed from all the components shown in the embodiments.

1 ... Crane dropping vessel 2 ... Opening 5 ... Gut vessel 6 ... Crane 11 ... Pollution water diffusion prevention fence 21 (21a-21d) ... Wire 22 (22a-22d) ... Winch 30 ... Crane information processing device 31 ... Positioning Unit 32 ... Shape detection unit 32a ... Sensor unit 33 ... Winch control unit 34 ... Wireless communication unit 51 ... Crane 52 ... Crane shell 60 ... Arithmetic unit 61 ... Positioning unit 62 ... Crane control unit 63 ... Wireless communication unit 100 ... Rubble stone mound

Claims (5)

Equipped with a gut ship and a rubble drop boat,
For the rubble drop pontoon,
The opening where the rubble stones thrown in from the sea surface are dropped on the seabed,
A polluted water diffusion prevention fence that is suspended and attached and surrounds the opening,
Multiple winches for winding and unwinding the connected wires are provided.
The wire connected to each winch is different.
The anchor connecting the end on the side not connected to the winch is different for each wire.
The gut ship
A heavy machine for throwing the loaded rubble into the opening of the rubble drop carrier from above the sea is provided.
The rubble mound construction is carried out by the heavy machine provided on the gut ship to put the rubble into the opening of the rubble drop pontoon without the gut ship coming alongside the rubble drop pontoon. It ’s a system ,
For the rubble drop pontoon,
Furthermore, the first communication unit that performs wireless communication,
A positioning unit that determines the position of the rubble drop vessel, and
Each winch is provided with a winch control unit for winding and unwinding the connected wire.
The gut ship
The second communication unit that performs wireless communication, and
An arithmetic unit, which determines the mooring position for mooring the rubble drop pontoon, is provided.
The second communication unit transmits the mooring position of the rubble drop pontoon determined by the arithmetic unit.
Further, the winch control unit is used for each winch according to the mooring position of the rubble dropping vessel received by the first communication unit and the position of the rubble dropping vessel positioned by the positioning unit. Controlling the winding amount or feeding amount of the wire connected to the winch,
Rubble mound construction system. Equipped with a gut ship and a rubble drop boat,
For the rubble drop pontoon,
The opening where the rubble stones thrown in from the sea surface are dropped on the seabed,
A polluted water diffusion prevention fence that is suspended and attached and surrounds the opening,
Multiple winches for winding and unwinding the connected wires are provided.
The wire connected to each winch is different.
The anchor connecting the end on the side not connected to the winch is different for each wire.
The gut ship
A heavy machine for throwing the loaded rubble into the opening of the rubble drop carrier from above the sea is provided.
The rubble mound construction is carried out by the heavy machine provided on the gut ship to put the rubble into the opening of the rubble drop pontoon without the gut ship coming alongside the rubble drop pontoon. It ’s a system,
For the rubble drop pontoon,
Furthermore, the first communication unit that performs wireless communication ,
A positioning unit that determines the position of the rubble drop vessel , and
For each of the winch, winding of the wire being connected, and winch control unit for feeding, it is provided,
The gut ship
The second communication unit that performs wireless communication , and
Wherein determining the position of a marine for mooring the rubble dropping barge, for each of the winch of the rubble dropping barge, arithmetic unit for calculating the winding amount or the feeding amount of the wire being connected, it is provided,
The first communication unit transmits the position of the rubble dropping vessel positioned by the positioning unit, and the position is transmitted.
Based on the position on the sea where the calculation unit determines to moor the rubble drop pontoon and the position of the rubble drop pontoon received by the second communication unit, for each winch of the rubble drop pontoon. Calculate the winding amount or feeding amount of the connected wires,
The second communication unit transmits the winding amount or the feeding amount of the connected wire calculated for each winch by the arithmetic unit.
Further, the winch control unit receives the winding or unwinding of the wire connected to the winch for each winch, and the winding amount or the winding amount of the connected wire received by the first communication unit. Control according to the payout amount,
Discard stone mound building system. The rubble drop pontoon is equipped with a shape detection unit that detects the shape of the rubble mound deposited on the seabed.
The first communication unit transmits the shape of the rubble mound detected by the shape detection unit, and the shape is transmitted.
Based on the shape of the rubble mound received by the second communication unit, the arithmetic unit determines the position where the rubble drop pontoon is moored.
The rubble mound construction system according to claim 1 or 2. The opening where the rubble stones thrown in from the sea surface are dropped on the seabed,
A polluted water diffusion prevention fence that is suspended and attached and surrounds the opening,
The first communication unit that performs wireless communication and
Multiple winches for winding and unwinding the connected wires are provided.
A rubble drop pontoon with different wires connected to each winch and different anchors connecting ends not connected to the winch for each wire.
A heavy machine that throws the loaded rubble into the opening of the rubble drop carrier from above the sea.
Using a gut ship equipped with a second communication unit that performs wireless communication,
Construction of a rubble mound by the heavy equipment provided on the gut ship, in which the rubble is thrown into the opening of the rubble drop pontoon without the gut ship coming alongside the rubble drop pontoon. It ’s a method,
A process in which the arithmetic unit provided on the gut ship determines the mooring position at which the rubble drop platform is moored.
A process of transmitting the mooring position of the rubble drop pontoon determined by the arithmetic unit to the second communication unit, and
The process of positioning the position of the rubble drop pontoon by the positioning unit provided on the rubble drop pontoon.
Each winch is determined by the winch control unit provided on the gut ship according to the mooring position of the rubble dropping pontoon received by the first communication unit and the position of the rubble dropping pontoon positioned by the positioning unit. A method for constructing a rubble mound, which controls the winding amount or the feeding amount of the wire connected to the winch. The opening where the rubble stones thrown in from the sea surface are dropped on the seabed,
A polluted water diffusion prevention fence that is suspended and attached and surrounds the opening,
The first communication unit that performs wireless communication and
Multiple winches for winding and unwinding the connected wires are provided.
A rubble drop pontoon with different wires connected to each winch and different anchors connecting ends not connected to the winch for each wire.
A heavy machine that throws the loaded rubble into the opening of the rubble drop carrier from above the sea.
Using a gut ship equipped with a second communication unit that performs wireless communication,
Construction of a rubble mound by the heavy equipment provided on the gut ship, in which the rubble is thrown into the opening of the rubble drop pontoon without the gut ship coming alongside the rubble drop pontoon. It ’s a method,
A process of transmitting the position of the rubble drop pontoon measured by the positioning unit provided on the rubble drop pontoon to the first communication unit.
The arithmetic unit provided on the gut ship determines the mooring position for mooring the rubble drop pontoon, and the mooring position of the rubble drop pontoon determined here and the positioning unit received by the second communication unit. A process of calculating the winding amount or the feeding amount of the connected wire for each winch of the rubble dropping vessel based on the positioned position of the rubble dropping vessel.
A process of causing the second communication unit to transmit the winding amount or the feeding amount of the connected wire calculated by the arithmetic unit for each winch.
Further, a winch control unit provided on the gut ship is provided for each winch according to the winding amount or the feeding amount of the wire connected to each winch received by the first communication unit. A method for constructing a rubble mound that controls winding or unwinding of the wire connected to a winch.

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