JPS59192128A - Construction of strut for breeding of sea weed - Google Patents

Abstract

PURPOSE:To easily erect and draw out a strut for breeding sea weed by a method in which pressure water from a pump is jetted from the lower end driving pointed head while being passed through the inside of the strut and a hole is drilled in the ground or the soil pressure is degraded. CONSTITUTION:The nozzle 14 of a pump 12 set on a working ship 11 is attached to the connector 6 of a strut A. In this case, when the nozzle 14 is pushed from the tip into a holding tube 9, the notched line of the inserting portion 8 is opened, and the tip of the nozzle 14 is projected into the main tube 2. When pressure water is jetted downwards from the jet port 14a of the nozzle 14 under the condition, the pressure water passes the water path 4 in the main tube 2 and is jetted into the ground 15 from the opening 3a of the driving pointed head 3. By the jet stream, a hole 16 is formed in the ground 15, the strut A gradually goes into the ground 15, and the strut A is erected. Even when the strut A is drawn out, pressure water is jetted likewise, and thereby the strut A can be easily drawn out.

Description

[Detailed description of the invention] The present invention relates to a method for constructing supports for seaweed cultivation.

Conventionally, when cultivating seaweed at sea, a method is used in which poles are erected on both sides of a seaweed net, the seaweed net is suspended from the pillars, and the net is sunk several am below the sea surface.

It is extremely difficult to erect this support vertically up to several meters above the seabed, or to pull it out from the seabed in places where the ground on the seabed is hard. This requires drilling a hole and inserting the lower end of the support into the hole, which is difficult to construct and is the biggest problem with nori cultivation methods that use supports.

The present invention has been made to solve the problem in constructing the support for seaweed cultivation, and its purpose is to attach a connecting member to the side surface of the support for seaweed cultivation, and connect the connecting member to the pump. Attach a nozzle, then spray pressurized water from the pump through the inside of the pillar from the bottom end, and use this water pressure to drill a hole in the hard seabed ground as the pillar is erected.
Similarly, when removing a post once it has been erected, the fountain pressure is applied to the ground to scatter the earth and sand hardening the bottom of the post so that it can be easily removed. Using injection pressure to attach the connecting member to the column and to the nozzle, the parts are made watertight to prevent leakage of pressure water, and the pressure of this pressure water can be used effectively without wasting it. The aim is to provide a construction method.

That is, in order to achieve this object, the method for constructing a support for seaweed cultivation of the present invention involves attaching a plurality of connection members in the vertical direction to the side surface of the support for seaweed cultivation, and attaching and detaching a nozzle from a pump to this. Insert the column and spray pressure water from the tip of the nozzle into the bottom of the seabed while spraying it from the bottom of the column.
’, and at the same time apply pressure water to the connecting member, the connecting member is crimped to the inner wall of the support to form a watertight state, and the support for seaweed cultivation is erected in the seabed ground. , I decided to construct it so that it would be pulled out of the ground for correspondence.

An embodiment of the construction method of the present invention will be described below with reference to the drawings.

The nori cultivation support A (hereinafter referred to as the "support"), which is the object of the construction method of the present invention, consists of an antenna part 1, a main pipe part 2, and a driving point 3. The antenna part 1 is fixed to the upper part, the driving point 3 is provided at the lower end of the main pipe part 2, and the tip opening 3 of the driving point 3 is inserted into the inside of the main pipe part 2.
It is formed as a flow channel 4 leading to a.

The main pipe section 2 includes a core pipe 2a made of vinyl chloride resin, a reinforced plastic layer 2b made of unsaturated polyester resin and glass fiber, and a covering layer 2c made of polyethylene resin.
This main pipe 2 is made up of FRPvK.
A plurality of through holes 5, 5, .

The connecting member 6 is made up of a conical insertion portion 8 having a plurality of cut lines 7 formed at its tip, and a holding tube 9 connected integrally with the end plate 8aK of the insertion portion 8. It is formed in a structure in which one end extends rearward from the end face plate 8a and a seven flange 1o is provided at the extending end, and the holding v
The outer diameter of 9 is slightly smaller than the through hole 5 formed in the main pipe part 2.
J-diameter is increased, and the base end diameter of the insertion portion 80 and the diameter of the 7 flange 10 are made larger than the through hole 5.

Note that the connecting member 6 is made of an elastic material such as rubber.

Note that 11 in Figure 1 is a work boat, 12 is a pump, and 13 is a work boat.
1 is a water supply hose, and 14 is a nozzle connected to the tip of the hose. Also, 15 is the ground.

Therefore, first, when building the pillar A on the ground 15 on the seabed,
The above-mentioned connecting member 6f: Installed in the through hole s of the main pipe portion 20. In this case, when the insertion part 8 of the connecting member 6 is inserted into the through hole 5 from its tip and pushed firmly, the insertion part 8 passes through the through hole 5 while being compressed, and the insertion part 8
When the end plate 8a passes through the through hole 5, the end plate 8a is restored to its original size and is pressed against the wall of the core tube 2a, which becomes the inner wall of the main tube portion 2. At the same time, the 7 flange 10 portions are in pressure contact with the coating layer 2C, which is the outer wall of the main pipe portion 2, so as to prevent the connecting member 6 from coming off in the front-rear direction.

Next, the nozzle 14 of the pump 12 installed on the work boat 11 is attached to the connecting member 6 at the lower position. In this case, when the nozzle 14 is pushed into the holding tube 9 from its tip, the nozzle 14 The cutting line 7 of the insertion part 8 is pushed open by the tip of the nozzle 14, and the tip of the nozzle 14 is inserted into the insertion part 8.
It protrudes from the tip and enters the inside of the main pipe section 2. At this time, the cut line 7 is pushed open according to the size of the nozzle 14, but since the base of the cut line 70 forms a tubular part 7a, the outer periphery of the nozzle 14 is made watertight from this tubular part 7alC. It is pressed into close contact with the

After the nozzle 14 is attached to the connecting member 6 in this manner, when the pump 12 is started, pressure water is injected downward from the injection port 14a of the nozzle 14, and a large amount of pressure water flows into the main pipe section 2. Passing through the flow channel 4, the tip opening 3 of the driving point 3
1. A hole 16 is made in the ground 15 with a strong jet jet. As this hole is drilled, the support column A is dropped into the hole 16.

Then, the driving point 3 of the pillar A is inserted into the ground 15 by the required depth.
If the pump 12 is stopped when the ground is in the ground, the driving point 3 is buried in the ground 15, and the pillar A can be erected. When the nozzle 14 has been installed to a certain length, the nozzle 14 is pulled out from the connecting member 6 at the lower position, moved to the upper connecting part 6 and attached, and by repeating this attachment and detachment, the support column A is It is built to the point where a strong trap is erected.

Also, conversely, once the pillar A has been erected, it is
If you want to remove it from the inside, do the same as above.

The nozzle 14 is attached to the connecting member 6Vc, and the pressurized water from the pump 12 is passed through the flow channel 4 and sprayed from the driving point 3 to vibrate the ground 15 and crack the hardened ground 15. At the same time, the earth and sand around the driving point 3 is scattered and removed, making it easier to pull out.

As mentioned above, when pressurized water is injected from the injection port 14a of the nozzle 14, the pressure of the pressure water acts on the insertion part 8 of the connecting member 6, and the pressure water flows back from the insertion part 8 into the holding tube 9. However, since the connecting member and the nozzle 14 are firmly in contact with each other due to the water pressure of the pressurized water, water will not flow back into the connecting member 6. At the same time, since the connecting member 6 is pressed against the inner wall of the main pipe section 2 by the injection pressure, the end plate 8a of the insertion section 8 seals the periphery of the through hole 50 to prevent pressure water from leaking out of the through hole 5. This is an example. Therefore, the pressure water sent from the pump 12 does not leak from the attachment of the connecting member 6, and the pressure from the pump 12 is directly transmitted from the inside of the main pipe section 2 to the driving laryngeal region 3. It can effectively spray pressurized water.

Therefore, it is possible to easily drill holes even in the hard ground surface of the seabed, and it is also possible to collapse the earth pressure in the ground.

Although the present embodiment shows the support A made of FRP, the present construction method is not limited to this, and supports made of steel pipes, bamboo, and various types of tubular bodies can also be applied to the present construction method.

As explained above, the construction method of the present invention involves attaching a connecting member to the side of the support, inserting the tip of the nozzle into the inside of the support via this connection member, and passing the pressure water from the pump through the inside of the support at the lower end. By injecting it from the driving point, it makes a hole in the hard ground, and by collapsing the earth pressure of the ground, it is possible to easily erect and pull out the pillar, and it also reduces the pressure. The installation of the connecting member using the water pressure and the nozzle injection pressure makes the part wet, so this installation prevents shallow water from coming from the part and allows the pump pressure to act on the seabed ground surface by ioo%. Moreover, since we have provided multiple connection members in the vertical direction and can attach the nozzle to them in a detachable manner, the nozzles can be attached to the connection members depending on the depth of the sea and the depth of construction. The position can be selected, and the installation of the nozzle has excellent effects such as being able to perform work efficiently.

[Brief explanation of drawings]

FIG. 1 is an explanatory sectional view showing an example of construction of a support for seaweed cultivation according to the present invention, and FIG. 2 is a perspective view of a connecting member used in the method of the present invention. A... Nori cultivation support 1... Antenna part 2... Main pipe part 3... Driving point 4... Water channel 5... Through hole 6... Connection member 14. ... Nozzle 12 ... Pump patent applicant Marushu Sekisui Kogyo Co., Ltd.

Claims (1)

[Claims] l) Attach multiple connecting members vertically to the side of a support for seaweed cultivation, insert the nozzle from the pump in a removable manner, and inject pressurized water from the tip of the nozzle, and then from the bottom end of the support. By drilling a hole in the seabed ground and applying pressure water to the connecting member at the same time, the connecting member is crimped to the inner wall of the support to form a watery state, and the support for seaweed cultivation is installed in the seabed ground. A construction method for a support for seaweed cultivation, characterized in that it is built in and then pulled out from the ground.