JP2963666B2 - Submarine cable and water pipe burial machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention is, Ya submarine cable while drilling undersea cables and water pipes or the like embedded in the seabed
It relates to a burial machine for water pipes .

[0002]

2. Description of the Related Art Conventionally, the following burial machines have been known as burial machines for burying cables, water pipes and the like on the sea floor. (A) A burial machine that digs a groove on the seabed with a plow blade or bucket, lays a cable or the like in the groove, and then covers the groove with the cable or the like with mud and buries the cable or the like. (B) A burial machine for digging the seabed by injecting air into the seabed with an air nozzle communicating with an air pump on the sea, and burying cables and the like on the seabed. However, in the burial machine of (a),
The work of laying mud after arranging the cables and the like is required, and the work and the man-hour for the burying work are required, and there is a problem that the workability of burying the cables and the like is lacking. Further, in the burying machine of (b), since the air is jetted to the seabed to excavate the seabed, there is a problem that the buried machine rises sharply and it is difficult to dig at a predetermined depth. . In addition, there is a problem that the weight of the burying machine is increased due to an increase in the size of the burying machine and the provision of a heavy weight in order to prevent the buried machine from rising, and the transportability is poor. In addition, due to the influence of water pressure and the like, only excavation can be performed to a depth of 10 m to 20 m, which has a problem that the usable area of the burying machine is narrow and lacks convenience.

In order to solve these problems,
The following burial machines have been intensively studied and disclosed. (C) Japanese Patent Publication No. 55-15574 (hereinafter referred to as "A") discloses an airframe supporting jet-type excavating means,
A planetary outer ring which is rotatably supported by an axle on both sides of the body and is rotatably supported on the outer periphery of the rotating body and is rotatably fitted around the rotating body by circumscribing each planetary outer ring and each planetary outer ring. And a wheel including a creased endless belt. (D) Japanese Patent Publication No. 56-37381 (hereinafter referred to as “B”) discloses a submersible motor pump for supplying one or more pairs of jet nozzles, a spade blade for discharging earth and sand, and high-pressure water to the jet nozzles. And a submarine cable introduction unit for introducing a submarine cable into a groove are disclosed. (E) Japanese Patent Publication No. 63-63693 (hereinafter referred to as C) discloses that the front of a jet plow having two long side plates is rotatably mounted on a body frame of an buried machine pulled on the seabed. A jet-type high-speed burying machine that pivotally supports a jet nozzle inside a side plate is disclosed. (F) Japanese Patent Publication No. 1-51613 (hereinafter referred to as Japanese Patent Publication No. 2) discloses a cable passage which pivotally supports a cable guide on a submarine sled body and opens at both ends in a longitudinal direction. A submarine cable burying device is disclosed, in which excavation means are provided at an upper portion and a lower portion between a cable and a channel opening surface.

[0004]

However, the above-mentioned conventional burying machines for submarine cables and the like have the following problems. In the jet-type submarine excavator described in Japanese Patent Publication No. A, the structure of the wheels rotatably supported by the axle on both sides of the fuselage is complicated, and failures such as the planetary outer ring and the endless belt with folds are likely to bite. In addition, there was a problem that maintenance management was difficult. In the submarine cable burying machine described in the gazette of the publication, since the cable to be buried on the seabed is introduced into the burying machine from the cable inlet of the submarine cable burying machine and the burying work is performed, installation of the submarine cable burying machine and burying of the submarine cable are performed. There is a problem that it is difficult to attach and detach the submarine cable from the aircraft. In the jet-type high-speed burial machine described in Japanese Patent Publication No. C, a high-pressure water is supplied by connecting a water supply hose connected to a jet water supply pump installed on a ship or the like towing the buried machine to a jet nozzle of the buried machine. Therefore, there is a problem that the pressure loss at the time of water supply is large and the water supply pump for jets lacks efficiency. In addition, since the body frame of the buried machine protrudes from the float, when there is an obstacle such as rocks on the sea floor, the body frame of the buried machine collides with the obstacle and stops running while burying cables and the like. Had. In the submarine cable burying device described in Japanese Patent Publication No. 2, when there is an obstacle such as a rock on the seabed, after climbing over the obstacle with a submarine sled body and falling from the obstacle, the submarine cable burying device There were problems such as giving impact and bending the submarine cable to be buried.

The present invention solves the above-mentioned conventional problems. The present invention enables the vehicle to travel without being hindered by obstacles on the seabed, has a good jetting efficiency of drilling water for digging the seabed, and adjusts the digging force. It is an object of the present invention to provide a submarine cable or water pipe burying machine which can be easily constructed and easily attached to and detached from a submarine cable and water pipe .

[0006]

In order to solve the above-mentioned conventional problems, a submerged cable and water pipe burying machine according to the present invention comprises a pump mounting portion and at least two pumps mounted on the pump mounting portion. A submersible pump, a digging support part erected downward from both sides of the pump mounting part, and an outer peripheral part of the digging support part from the discharge part of the submersible pump . Drilling water discharge pipe and the drilling water discharge pipe
The formed drilling water discharge portion, a horizontal plate disposed on both sides of the pump mounting portion, a traveling portion disposed at an end in the traveling direction of the pump mounting portion, and a A roller shaft, a hollow cylindrical member, and both side surfaces of the hollow cylindrical member
Side plate portion having a hole disposed along the edge and disposed at
And a traveling roller supported by the roller shaft, a guide roller shaft disposed on the excavation support portion and / or the traveling portion, and a guide roller supported by the guide roller shaft. It has a configuration provided. With this configuration,
Since the seawater is sucked by the submersible pump provided in the pump mounting part and sent to the nearest discharge pipe for drilling, the length of the pipe from the submersible pump to the discharge pipe for drilling is short, so the drilling water is supplied. In this case, the pressure loss can be reduced, and the efficiency of the submersible pump can be improved. Also, since the excavation discharge pipe connected to the submersible pump is disposed along the outer peripheral side of the excavation support portion, the excavation water can be jetted from the excavation water discharge portion to excavate the seabed, and the guide roller can be excavated. Has the effect that a submarine cable , a water pipe, etc. can be buried along. In addition, since the excavation support portions are erected downward from both sides of the pump mounting portion, it is easy to align the submarine cable and the water pipe with the guide rollers disposed between the excavation support portions, detachment of the該海bottom cables or water pipes embedded machine and submarine cable or water supply tube or the like has the effect of easily is. Further, since and a horizontal plate, it is possible to keep the horizontal submarine,該海bottom cable and feed
It has the effect of preventing the burial machine of the water pipe from sinking to the seabed, and also prevents the burying machine of the submarine cable and water pipe from floating due to the resistance of the horizontal plate even when high-pressure drilling water is discharged. Has an action. In addition, since the traveling unit is equipped with traveling rollers, it can overcome obstacles such as rocks on the seabed and can prevent running from being stopped due to obstacles on the seabed while burying cables and water pipes. Has the effect of being able to.

[0007]

DETAILED DESCRIPTION OF THE INVENTION A submarine cable or water pipe burying machine according to claim 1 of the present invention comprises: a pump mounting portion; and at least two submersible pumps provided in the pump mounting portion.
A digging support portion erected downward from both sides of the pump mounting portion, and a digging water discharge pipe arranged along the outer peripheral side of the digging support portion from the discharge portion of the submersible pump.
A drilling water discharge portion formed in the drilling water discharge pipe, horizontal plates disposed on both sides of the pump mounting portion, and a horizontal plate disposed at an end in the running direction of the pump mounting portion. A traveling section, a roller shaft disposed in the traveling section, a hollow cylindrical member,
The hollow cylindrical member is provided on both sides and is pierced along the edge.
A side plate portion having a recessed hole portion, a traveling roller pivotally supported by the roller shaft, a guide roller shaft disposed on the excavation support portion and / or the traveling portion, and a guide roller shaft. And a guide roller supported by a shaft. As a result, the submersible pump is disposed on the pump mounting portion and sucks seawater to make drilling water.Therefore, the pressure loss at the time of sending drilling water to the discharge pipe for drilling disposed immediately near the submersible pump is reduced. It has the effect that it can be reduced. In addition, the seabed can be excavated by injecting excavation water from the excavation water discharge part, and the submarine cable and
It has the effect that water pipes and the like can be buried in the sea floor. In addition, since the excavation support portions are erected downward from both sides of the pump burying machine, it is easy to guide the submarine cable and the water pipe along the guide rollers between the excavation support portions, and the submarine cable and Ya buried machine and the submarine cable of the water pipe
It has the effect that it can be easily attached to and detached from a water pipe . Also,
The horizontal plate keeps the horizontal with the seabed, prevents the submarine cable and the burial machine of the water pipe from sinking to the seabed, and furthermore, discharges the submarine cable by discharging high-pressure drilling water.
And has the effect of preventing the buried machine of the water pipe from rising. In addition, there is an effect that the traveling rollers can overcome obstacles such as rocks on the sea floor. When the submarine cable or water pipe burial machine is submerged
Seawater enters the hollow cylindrical member through the hole in the side plate
The weight of the row roller increases, and the running roller becomes a counterway.
Can be used in place of
When the burial machine of the water pipe is lifted,
Seawater in the hollow cylindrical member escapes, the weight of the traveling roller decreases,
It has the effect of being easily transported on the sea or on land. still,
A counterweight may be provided on the pump mounting part.
It is possible to prevent the airframe from being lifted up due to the injection force from the excavation water discharge portion when excavating the seabed.

The submarine cable according to claim 2 of the present invention ,
In the invention according to claim 1, any one or more of the pump mounting portion, the horizontal plate, the traveling portion, and the traveling roller are detachably formed via a connecting portion. Configuration. Thereby, since it is possible to divide each part when storing or transporting the submarine cable or water pipe burying machine, it is easy to transport, and there is an effect that it does not take up space when storing it in a warehouse or the like. Further, when the pump mounting portion and the excavation support portion are detachably formed, there is an effect that the excavation support portion can be exchanged in accordance with the burial depth of a submarine cable , a water pipe, or the like.

The submarine cable according to claim 3 of the present invention ,
In the water pipe burying machine according to the first or second aspect of the present invention, the pump mounting portion includes a back pressure adjusting pump and the back pressure adjusting pump.
Connect the discharge part of the regulating pump to the end of the discharge pipe for drilling.
And a back pressure adjusting pipe. This
Drilling water discharge section of the drilling discharge pipe according to the condition of the seabed
Can significantly increase the jetting power of drilling water from
It has a function.

The submarine cable according to claim 4 of the present invention ,
The burial machine for a water pipe according to any one of claims 1 to 3, wherein the drilling water discharge unit is rotatable.
A structure having a discharge port and / or a nozzle portion capable of controlling the discharge amount.
Have

Thus, the discharge direction of the nozzle portion is
That can be adjusted according to the size of the buried object such as
In both cases, the water flow is adjusted according to the conditions of the seabed.
Has the effect that the excavation depth can be adjusted.
You. A cock or the like is used for adjusting the amount of flowing water.

(Embodiment 1) Hereinafter, a submarine cable and water pipe burying machine according to Embodiment 1 will be described with reference to the drawings, taking a case where a cable is buried as an example. Figure 1 is a plan view of a burying apparatus submarine cables and water pipes in the first embodiment, FIG. 2 is a fragmentary side view of a burying apparatus submarine cables and water pipes in the first embodiment, FIG. 3 is performed a main part bottom view of submarine cables or water pipes embedded machine in accordance with the first, FIG. 4 is a partial front view of the running portion of the buried machine submarine cables and water pipes in the first embodiment. In the figure, reference numeral 1 denotes a submarine cable or water pipe burying machine according to the first embodiment, and 2 denotes a submarine cable or transmission pipe.
The pump mounting part 2a of the water pipe burying machine 1 is a pump mounting part 2
, A submersible pump 3 is disposed on both sides of the pump mounting part 2 and is fixed by the pump fixing part 2a, 3a is a discharge part of the submersible pump 3, and 3b is a submersible pump 3. The strainer 4 is disposed on the upper part of the submersible pump 3 and the excavation support parts 5 are respectively provided downward from both sides of the center of the bottom surface of the pump mounting part 2. Excavation discharge pipe arranged along the outer peripheral side of the
Reference numeral 6 denotes a back pressure adjusting pump which is disposed between two submersible pumps 3 and 3 on the discharge side in a direction opposite to the submersible pumps 3 and is fixed by a pump fixing portion 2a. A discharge part, 6b is a strainer arranged on the upper part of the back pressure adjustment pump 6, 7 is a back pressure adjustment pipe connecting the discharge part 6a of the back pressure adjustment pump 6 and an end of the excavation discharge pipe 5, and 8 is Horizontal plates 9 are provided on both sides of the pump mounting portion 2, and 9 is the pump mounting portion 2.
, A traveling portion formed of a frame, 9a is a roller fixing portion disposed on the traveling portion 9, 10 is disposed on the traveling portion 9, and is fixed on the roller fixing portion 9a. The roller shaft 11 is supported at both ends of the roller shaft 9 and a traveling roller formed of a hollow cylindrical member and a side plate portion.
An engaging portion is provided at an end of the traveling direction, and a tow rope is engaged thereto. 13 is a guide roller which is supported by the traveling portion 9 with a guide roller shaft. 14 is both sides of a hollow cylindrical member of the traveling roller 11. A side plate portion provided on the surface, 14a is a hole formed in the side plate portion 14, 15 is a guide roller shaft provided on the excavation support portion 4, 16 is a guide roller supported by a guide roller shaft 15, Reference numeral 17 denotes a digging water discharge portion formed in the digging discharge pipe 5, 18 denotes a guide portion provided on the bottom surface of the traveling portion 9 in the traveling direction, 19 denotes a guide portion provided on the guide portion 18, It is a guide roller shaft to be supported.

The operation of the submarine cable and water pipe burying machine according to the first embodiment configured as described above will be described below with reference to the drawings. FIG. 5 is a cross-sectional view of a main part showing a use state of a submarine cable or a water pipe burying machine according to the first embodiment. In the figure, reference numeral 20 denotes a submarine cable buried on the sea floor, and reference numeral 21 denotes a tow rope attached to the engaging portion 12 of the traveling section 9 and a laying ship (not shown) such as a cable or a water pipe . The submarine cable or water pipe burying machine 1 is connected to a cable or water pipe or other laying ship via a tow rope 21 at an anchoring portion 12. The submersible pump 3 and the back pressure adjusting pump 6
, Power is transmitted from a submarine cable , a cable for pulling the water pipe burying machine 1, a water pipe, or the like via a transmission line (not shown). The work of burying submarine cables involves first lifting the submarine cable and water pipe burying machine 1 at the burial point with a crane, submerging the cables and water pipes, etc. into the seabed from above the laying ship,
The submarine cable 20 previously arranged on the seabed is connected to the submarine cable.
As shown in FIG. 5, the submarine cable and the water pipe burying machine 1 are installed along the guide rollers 13 and 16 of the water pipe and the water pipe burying machine 1. At that time, when submerging the submarine cable or water pipe burying machine 1 on the seabed, the hole 14 formed in the side plate portion 14 of the traveling roller 11 is formed.
Seawater flows in from a. Next, the submersible pump 3 and the back pressure adjusting pump 6 are operated to suck the seawater through the strainers 3a and 6a to supply the drilling water to the excavating discharge pipe 5 and the back pressure adjusting pipe 7, and the excavating water discharge section is provided. Drilling water is injected from 17 to excavate the seabed. A groove is formed in the seabed by the drilling water injected from the drilling water discharge unit 17, and the guide rollers 13, 1
The submarine cable 20 guided by 6 is buried, and the horizontal plate 8 of the burying machine 1 of the submarine cable and the water pipe comes into contact with the seabed. Next, when the submarine cable or water pipe burying machine 1 is towed by a laying ship such as a cable or water pipe through a tow rope 21, the traveling roller 11 rotates to rotate the horizontal plate of the submarine cable or water pipe burying machine 1. 8 moves along the seabed, and digs the seabed with the drilling water injected from the drilling water discharge unit 17 to form a groove and bury the submarine cable 20 in the groove. In addition, the burial depth of the submarine cable 20 is determined by H of the excavation support part 4 shown in FIG. After the submarine cable 20 is buried,
A submarine cable or a water pipe burying machine 1 is lifted up from a seabed by a crane. At this time, the seawater flowing into the traveling roller 11 is discharged from a hole 14a formed in the side plate 14 of the traveling roller 11.

As described above, the submarine cable according to the first embodiment
And a burial machine for water pipes are constructed, so that seawater can be sucked from the strainer by a submersible pump and a back pressure adjustment pump, and drilling water can be jetted from the drilling water discharge section of the drilling discharge pipe to drill the seabed and guide It has the effect that the submarine cable guided by the rollers can be buried in the seabed. By towing a submarine cable or water pipe burying machine with a cable or water pipe laying ship through a tow rope, the running roller rotates while the submarine cable or water pipe burying machine moves, and The submarine cable can be buried in the place, and obstacles such as rocks on the seabed can be overcome by running rollers.
And has the effect of preventing the running of the burial machine of the water pipe . In addition, since the horizontal plate moves along the seabed, it has an effect of preventing the submarine cable and the burying machine of the water pipe from sinking into the sludge on the seabed. Even if high-pressure water is discharged from the discharge pipe, it has the effect of preventing the submarine cable and the burial machine of the water pipe from being lifted up by the reaction. When a submarine cable or water pipe burying machine is lowered to the seabed, seawater flows in from the hole in the side plate of the traveling roller and the weight of the traveling roller increases, and the buoyancy and seabed of the submarine cable and water pipe burying machine are increased. The reaction force of the drilling water jetting force generated during excavation can be suppressed and the submarine cable and water transmission
When the pipe burying machine is pulled up to the sea, seawater in the running roller is discharged from the hole of the side plate portion, and the weight of the running roller is reduced, so that the running roller is easily transported. Further, from above the submarine cable embedding only submerged in the seabed while along the submarine cable guide rollers,該海bottom cable and feed
It has the effect that a water pipe burying machine can be installed on the sea floor.

(Embodiment 2) Hereinafter, a submarine cable and water pipe burying machine according to Embodiment 2 will be described with reference to the drawings. Figure 6 is a plan view of a burying apparatus submarine cables and water pipes in the second embodiment, FIG. 7 submarine cable or water supply in the second embodiment
It is a principal part rear view of a pipe burying machine. Note that the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted. In the drawing, reference numeral 22 denotes a submersible cable or water pipe burying machine in which the pump mounting part 2, the horizontal plate 8, the traveling part 9, and the traveling roller 11 according to the second embodiment are formed so as to be freely assembled, and 23 is a pump mounting part. 2, a connecting portion of the horizontal plate 8 and the traveling portion 9 and 24 are a cock for controlling flowing water provided in a drilling water discharging portion 17 formed in the drilling discharge pipe 5 and a discharge port capable of changing a discharging direction. It is a nozzle part provided. Here, the connecting portion 23 is formed by a bolt, a nut, or the like, and connects the pump mounting portion 2 to the horizontal plate 8 and the traveling portion 9 by screwing or the like. The operation of the submarine cable and water pipe burying machine 22 in the second embodiment is the same as the submarine cable and water pipe burying machine 1 in the first embodiment.
The description is omitted because it is the same as.

As described above, the burying machine for submarine cables and water pipes according to the second embodiment is configured, and in addition to the operation of the first embodiment, when the burying machine for submarine cables and water pipes is transported. In addition, it can be divided and transported to a pump mounting part, a horizontal plate, a traveling part, and a traveling roller.
It has the effect of saving space for storage. Also, since the nozzle is provided with a cock for adjusting the flowing water, opening and closing the cock according to the condition of the sea bottom can adjust the excavating power and improve the excavating efficiency. Also, by changing the discharge port of the nozzle part, the cable
It has the effect that it can be adjusted according to the diameter of the water supply pipe and the diameter of the water pipe , and according to the burial depth.

[0017]

As described above, according to the submarine cable and water pipe burying machine of the present invention, the following excellent effects can be realized. (1) Since the seawater is sucked by the submersible pump and supplied to the excavation discharge pipe, the pressure loss during the transmission of the drilling water can be reduced, the efficiency of the submersible pump can be improved, and the submarine cable can be improved.
It has an effect that the structure of the burial machine of the water pipe and the water pipe is simple, and the maintenance and management can be easily performed. (2) Seawater can be excavated from the excavation discharge pipe by sucking seawater with a submersible pump to excavate the seabed, and a submarine cable guided by guide rollers between excavation supports can be used.
The water pipe can be buried in the seabed, which has the effect of excellent workability of burying. (3) by arranging the guide rollers between the drilling support, embedded in該海bottom cable or water supply tube to the seabed while the submarine cables and water pipes along a guide roller from above the submarine cables and water pipes buried By submerging the machine, the submarine cable and water pipe burying machine can be installed on the seabed, and the submarine cable and water pipe burying machine and the submarine cable can be easily removed, resulting in excellent workability. . (4)該海bottom cables or water pipes buried machine cable and feed
By pulling in laying ship like water pipes, while running rollers are rotated, for該海bottom cables or water pipes embedded machine moves, it is possible to embed the submarine cables and water pipes in place, rock seabed such obstacles can be a overcome by running rollers, middle buried submarine cable to prevent running of該海bottom cable or water supply tube embedded machine that stops the effect of buried without slack submarine cables and water pipes Have. (5)該海bottom cable or when using the water pipe buried machines, since the horizontal plate is in contact with the seabed,該海bottom cable and water supply
This has the effect of preventing the pipe burying machine from sinking into the sludge on the sea floor, reducing the resistance during traveling, and enabling smooth traveling. (6) By forming the pump mounting portion, the horizontal plate, the traveling portion, and the traveling roller detachably, the pump mounting portion, the horizontal plate,
It can be stored and transported by being divided into a traveling section and a traveling roller, and has an effect of being excellent in transportability. (7) By forming the traveling roller with a side plate having a hollow cylindrical member and a hole, when the burying machine for the submarine cable or the water pipe is submerged on the sea floor, the side plate of the traveling roller is formed. Seawater flows in from the hole and the weight of the traveling roller increases, and it is possible to suppress the buoyancy of the submarine cable and the burial machine of the water pipe and the reaction force of the jetting water jetting force generated during excavation. In addition, when the submarine cable or water pipe burying machine is lifted to the sea, seawater in the traveling roller is discharged from the hole of the side plate portion, the weight of the traveling roller is reduced, and the submarine cable and the transmission line are reduced. This has the effect of reducing the weight of the water pipe burying machine and excelling in transportability. (8) The back pressure adjusting pump can adjust the jetting power and the excavating width of the excavating water jetted from the excavating water discharge portion of the excavating discharge pipe, thereby improving the efficiency of excavating the seabed. (9) By arranging a nozzle unit equipped with a cock for adjusting the flowing water at the excavation water discharge part, the cock can be opened and closed according to the condition of the seabed, the excavation power can be adjusted, and excavation can be performed freely, and the excavation efficiency can be improved. Can be improved.

[Brief description of the drawings]

FIG. 1 is a plan view of a submarine cable and a water pipe burying machine according to a first embodiment.

FIG. 2 is a side view of a main part of a submarine cable and a water pipe burying machine according to the first embodiment.

FIG. 3 is a bottom view of a main part of a submarine cable or water pipe burying machine according to the first embodiment.

FIG. 4 is a front view of a main part of a traveling unit of a submerged cable and water pipe burying machine according to the first embodiment.

FIG. 5 is a sectional view of a main part showing a state of use of a submarine cable and a water pipe burying machine according to the first embodiment;

FIG. 6 is a plan view of a submarine cable and water pipe burying machine according to the second embodiment.

FIG. 7 is a rear view of a main part of a submarine cable or water pipe burying machine according to the second embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Submersible cable and water pipe burying machine 2 Pump mounting part 2a Pump fixing part 3 Submersible pump 3a Discharge part 3b Strainer 4 Excavation support part 5 Excavation discharge pipe 6 Back pressure adjustment pump 6a Discharge part 6b Strainer 7 Back pressure adjustment pipe Reference Signs List 8 horizontal plate 9 running part 9a roller fixing part 10 roller shaft 11 running roller 12 engaging part 13 guide roller 14 side plate part 14a hole 15 guide roller shaft 16 guide roller 17 drilling water discharge part 18 guide part 19 guide roller shaft 20 Cable 21 Tow rope 22 Submarine cable and water pipe burial machine 23 Connecting part 24 Nozzle part

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H02G 1/10 E02F 5/10

Claims (4)

(57) [Claims] 1. A pump mounting part, at least two submersible pumps disposed on the pump mounting part, and a digging support part erected from both sides of the pump mounting part downward. A drilling water discharge pipe disposed from a discharge part of the submersible pump to an outer peripheral side of the drilling support part;
A drilling water discharge portion formed in a water discharge pipe, horizontal plates disposed on both sides of the pump mounting portion, and a traveling portion disposed at an end of the pump mounting portion in a traveling direction, A roller shaft disposed in the running section, a hollow cylindrical member, and the hollow cylindrical section
It has holes that are provided on both sides of the
The side plate portion, and the running rollers which are rotatably supported on the roller shaft and a guide roller shaft that is disposed in the drilling support and / or the traveling portion, the guide roller shaft axially supported by the guide rollers And a burying machine for submarine cables and water pipes . 2. The apparatus according to claim 1, wherein at least one of the pump mounting portion, the horizontal plate, the traveling portion, and the traveling roller is detachably formed via a connecting portion. Underground cable or water pipe burying machine as described. 3. A pump according to claim 1, wherein said pump mounting portion is a back pressure adjusting pump.
And a discharge part of the back pressure adjusting pump and a discharge pipe for excavation.
3. The burying machine for submarine cables and water pipes according to claim 1 , further comprising a back pressure adjusting pipe connected to the end . 4. 4. The drilling water discharge part is rotatable discharge port.
The burying machine of a submarine cable or a water pipe according to any one of claims 1 to 3, further comprising a nozzle portion capable of adjusting a discharge amount .