KR101399090B1 - Multi suction pile and construction method - Google Patents

Abstract

The present invention relates to a suction pile formed with a plurality of pipe members installed by using a heavy object guide and a construction method for a suction pile. The suction pile installed on the ocean floor to fix or bond a marine structure is formed with a plurality of pipe members. The suction pile increases a frictional area between the suction pile and the ocean floor so that resistance on a vertical load and a horizontal load is improved. A plurality of the pipe members is bonded by a heavy object so that the heavy object and the pipe member have pulling resistance. When a plurality of the pipe members is embedded into the ocean floor, the pipe members are easily and vertically installed by being guided by the heavy object so that the pulling resistance is maximized.

Description

 Technical Field [0001] The present invention relates to a suction file including a plurality of pipe members installed using a weight guide, and a multi-

[0001] The present invention relates to a suction file installed on a seabed ground comprising a plurality of pipe members and a method of installing the suction file. Specifically, a suction file installed on a seabed ground is constructed of a plurality of pipe members for mooring or fixing a marine structure It is possible to increase the friction area with the seabed so that the resistance against vertical and horizontal loads can be improved and the plurality of tubular members are bound together by the weight so that the tubular member and the weight can exhibit the pull- And furthermore, when a plurality of pipe members are installed in the seabed ground, they are guided by the weight and can be easily installed vertically so that the pulling resistance force is maximized. A suction file including a plurality of pipe members to be installed, Methods of construction will be about. "

Large-scale storage facilities, and wind power generation facilities are being built on the sea. In order to install and fix these marine structures on the sea, anchors capable of mooring the marine structures are to be installed on the seabed.

Japanese Patent Application No. 10-986667 discloses an example of a conventional suction anchor as shown in FIG. 21, wherein a conventional suction anchor 100 is made of a single cylindrical tube member having a hollow 101 The lower end of the hollow 101 is open and the lower end of the suction anchor 100 is opened and the upper portion of the hollow 101 is closed by the finishing plate 103. Although the length of the suction anchor 100 is shown in FIG. 21, it may have a shape elongated longer than that shown in the drawing, if necessary. A motor 102 is provided on the finishing plate 103 of the suction anchor 100. When the motor 102 is operated, the water filled in the hollow 101 is drained to the outside of the hollow 101, 101, and the suction anchor 100 is introduced into the bottom of the seabed by the formation of negative pressure inside the hollow.

Such a conventional suction anchor or suction pile may be penetrated into the seabed using only a negative pressure generated inside the hollow by removing water from the hollow by operating a motor or a pump to penetrate the ground. Conventional suction anchors are mostly composed of a single pipe of large diameter or a single concrete pipe. Since a conventional suction file made up of such a large diameter single pipe member must be independently introduced into the bottom of the seabed without the help of any guide, It is very difficult to vertically install the tube member of the suction pile. When the suction pile is not installed vertically, the resistance against the horizontal load or the vertical load is lowered.

In addition, it is very costly to manufacture a suction anchor or a suction file with a large-diameter steel pipe or a large-diameter concrete pipe as in the prior art, and since the weight of the pipe member constituting the suction anchor or the suction file is large, And there is a great deal of cost. In addition, since the steel pipe or the concrete pipe used as the suction anchor or the suction file is exposed to the seawater, corrosion occurs in the suction anchor or the suction pile, and the durability is greatly reduced.

See Korean Patent No. 10-986667 (2010. 10. 08. Announcement)

The present invention has been developed in order to overcome the limitations of the prior art as described above. Specifically, the present invention improves durability and facilitates transportation to the sea. And to provide a suction file which can exhibit a large resistance and can reduce the production cost.

More specifically, in the present invention, a suction file installed on a seabed ground for fixing or restraining a marine structure is formed of a plurality of pipe members to increase the friction area with the seabed so that resistance to vertical and horizontal loads can be improved And the plurality of pipe members are coupled to each other by the weight member so that the pipe member and the weight member can exert the pulling resistance force together. Further, when the plurality of pipe members are inserted into the seabed ground, they are guided by the weight member So that the pulling resistance force can be maximized.

In order to achieve the above-mentioned object, the present invention provides a waterproof structure for a ship, comprising: a finishing plate having a plurality of through-holes formed on a top surface of a seabed sole, A tubular member integrally provided with a stopper member having an upper end closed and projecting outward to the side surface is installed in a state of being raised and guided by the through hole by passing through the through hole downward from the upper surface of the weight; The tubular member is penetrated and fixed to the bottom of the sea while the bottom end of the tubular member is in contact with the surface of the bottom of the seawater and the water in the hollow of the tubular member is drained through the drain pipe; Since the stopper member protrudes outside the side surface of the pipe member, when the upward vertical load acts on the weight member in a state where the pipe member is inserted into the weight member, the weight member is prevented from being pulled out of the pipe member by the stopper member, And a load is transmitted to the pipe member through the stopper member.

According to another aspect of the present invention, there is provided a method of constructing a suction file, the method comprising: placing a weight having a plurality of through-holes formed therein through the thickness thereof into water; A plurality of tubular members integrally provided with a stopper member having an upper end closed by a finishing plate having a hollow and having a drain hole to which a drain pipe is connected and protruding outwardly from the side are inserted downward from the upper surface of the weight, A step of inserting the through hole into the hole; And draining the water in the hollow of the pipe member through the drain pipe while the lower end of the pipe member is in contact with the surface of the seabed ground so that the pipe member penetrates and fixes the pipe member to the seabed ground; Since the stopper member protrudes outside the side surface of the pipe member, when the upward vertical load acts on the weight member in a state where the pipe member is inserted into the weight member, the weight member is prevented from being pulled out of the pipe member by the stopper member, And a load is transmitted to the pipe member through the stopper member.

According to the present invention, unlike a conventional suction anchor having a large diameter single pipe or a single concrete pipe for installing a marine structure on the sea, the suction pail according to the present invention has a large number of mid- The use of the aperture tube member can significantly reduce the production cost of the suction paddle compared to the prior art, facilitating the transportation and construction, thereby reducing the construction cost and improving the economical efficiency.

Particularly, in the suction file according to the present invention, it is possible to use an FRP pipe which is light and has no risk of corrosion against seawater. By using such an FRP pipe, durability can be improved without any additional measures such as corrosion prevention in steel pipes and concrete It is possible to facilitate the transportation to the sea at the same time as the installation, and the effect of reducing the air shortage and construction cost is greatly enhanced.

Particularly, according to the present invention, when viewed in the longitudinal cross-sectional shape of a tubular member made of a plurality of medium-small-diameter steel pipes or FRP pipes, a plurality of small- The area of the pipe member made of the small diameter steel pipe or the FRP pipe is in contact with the seabed ground. Therefore, since the frictional force between the suction pile and the bottom of the seabed greatly increases due to a large frictional force of a plurality of small, small-diameter tubular or small-diameter FRP tubular members, the vertical load (pulling force) The resistance against the horizontal load as well as the resistance force is greatly increased and the effect that the suction file is more firmly fixed to the seabed ground than the conventional suction anchor is exhibited.

Further, in the present invention, the pipe member is automatically inserted into the bottom of the seabed so that the pipe member is vertically installed by the guiding action of the through hole formed vertically in the thickness direction of the weight, so that the pipe member is vertically placed on the seabed It is possible to easily carry out the intrusion installation work. Therefore, in the suction file according to the present invention, the effect of maximizing the resistance to horizontal load or vertical load (pulling force) is exerted.

In addition, in the suction file of the present invention, when a vertical load acts on the weight body upward, the upward vertical load acting on the weight body is transmitted to the tube member through the upper stopper member provided on the tube member, The upward vertical load is canceled by the pullout resistance force exerted between the plurality of pipe members and the seabed ground so that the suction pile can stably maintain the floating state of the floating structure.

1 and 2 are schematic exploded perspective views showing different views of an embodiment of a suction pail of the present invention manufactured using a plurality of small-diameter tubular members.
FIG. 3 and FIG. 4 are schematic assembled perspective views showing different views of a suction file according to the embodiment shown in FIG. 1, respectively.
5 is a schematic cross-sectional view along line AA of Fig.
6 and 7 are schematic views of a suction file according to an embodiment of the present invention, each of which is provided with a vertical fitting member on the lower surface of the upper stopper member, Fig.
8 is a schematic cross-sectional view along line BB in Fig.
FIGS. 9 and 10 are views showing a case where the stopper member is formed of a separate member from the upper finishing plate and is provided in a flange shape protruding from the side surface of the pipe member, Fig.
11 is a schematic cross-sectional view along line CC of Fig.
Fig. 12 is a schematic exploded perspective view corresponding to Fig. 6 for another embodiment of a suction file according to the present invention in which the weight is rectangular; Fig.
13 is a schematic assembly perspective view of the embodiment shown in Fig.
14 to 18 are schematic cross-sectional views showing respective steps of a construction method in a cross-sectional state corresponding to FIG. 8, in order to explain a method of constructing a suction file according to the present invention.
19 is a schematic view showing a state in which a suction file according to the present invention is used for mooring floating structures in the sea;
20 is a schematic view showing a state in which a suction file according to the present invention is used as a foundation for supporting a wind turbine generator.
21 is a schematic cross-sectional view showing the structure of a suction file according to the prior art.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Although the present invention has been described with reference to the embodiments shown in the drawings, it is to be understood that the technical idea of the present invention and its essential structure and operation are not limited thereby.

Figs. 1 and 2 are schematic exploded perspective views showing different views of an embodiment of a suction file of the present invention (hereinafter abbreviated as "suction file") manufactured by using a plurality of small-diameter tubular members 3 and 4 are perspective views of a suction pile according to the embodiment of the present invention shown in Fig. 1, respectively. Figs. 1 and 3 are perspective views from above, Figs. 2 and 4 are perspective views looking upwards from below. Fig. 5 is a schematic cross-sectional view along the line A-A in Fig. 1 to 5, a peripheral device such as an underwater motor for draining the seawater filled in the hollow of the tubular member 10 for the sake of convenience is not shown, and the lengths of the tubular members 10 are all shown to be the same , And the length of the pipe member 10 may be different if necessary.

As shown in the drawing, the suction paddle 1 according to the present invention includes a small-diameter fiber reinforced composite material (FRP) or a steel pipe made of a steel pipe with the stopper member 17 protruding from the side surface A plurality of tubular members 10 and a plurality of tubular members 10 through which the plurality of tubular members 10 are inserted.

The tubular member 10 may be made of a small-diameter FRP pipe or a steel pipe. Specifically, the tubular member 10 is a member made of a tubular pipe, and the lower end of the tubular member 10 And the upper portion of the tubular member 10 is closed by an upper finishing plate 11 having a drain hole in the form of a through-hole. A drain pipe 13 is coupled to an upper surface of the upper finishing plate 11 so that a lower end of the drain pipe 13 is coupled to a drain hole formed in the upper finishing plate 11, The water filled in the hollow 16 of the pipe member 10 is sucked into the drain pipe 13 and discharged to the outside of the suction paddle 1. [

In the present invention, the tubular member (10) is provided with a stopper member (17). That is, when an upward vertical load (pulling force) is applied in a state in which the pipe member 10 penetrates the weight 20 in the direction toward the seabed ground, the weight 20 is separated from the upper end of the pipe member 10 And a stopper member 17 for preventing the protrusion from being pulled out.

The stopper member 17 may be provided in the form of a protruding member protruding from the side surface of the tubular member 10. In the case of the illustrated embodiment, the edge of the upper end finishing plate 11 is connected to the tubular member 10 And the edge portion of the upper finishing plate 11 further protruding from the side surface of the tubular member 10 corresponds to the stopper member 17. [ That is, since the area of the upper finishing plate 11 is larger than that of the tubular member 10, the edge portion of the upper finishing plate 11 protrudes outward from the side face of the tubular member 10 The edge portion of the upper finishing plate 11 protruding from the side surface of the tube member 10 constitutes the stopper member 17. [

 In the embodiment shown in the drawing, the entire edge portion of the upper finishing plate 11 is protruded outward from the side surface of the tube member 10, but only a part of the edge portion of the upper finishing plate 11, The stopper member 17 may protrude outward from the side surface of the stopper member 10.

1 to 5, the stopper member 17 may be a part of the upper finishing plate 11 and may be formed in a simple flat plate shape. However, the vertical fitting member 12 may be provided on the lower surface of the stopper member 17, May be further included. 6 to 8 are views showing an embodiment in which the vertical fitting member 12 is further provided on the bottom surface of the outermost edge of the stopper member 17, and FIGS. 6 and 7 are views respectively corresponding to FIGS. 1 and 2 FIG. 8 is a schematic cross-sectional view taken along the line BB in FIG. 6; FIG. As shown in FIGS. 6 to 8, the bottom surface of the stopper member 17 may be further provided with a vertical fitting member 12 extending vertically downward. The vertical engaging member 12 is formed in a plate shape and can be integrally joined and joined so as to be orthogonal to the lower surface of the stopper member 17 in the form of a flat plate. The concave groove 22 is formed on the upper surface of the weight 20 so that the vertical engaging member 12 can be fitted. The vertical engaging member 12 and the concave groove 22 are formed in such a manner that when the tubular member 10 is inserted through the weight member 20 and fixed in the bottom of the seabed, (20) are integrated with each other.

In the above embodiment, a part of the upper finishing plate 11 corresponds to the stopper member 17. However, the stopper member 17 may be formed of a separate member from the upper finishing plate 11. [ 9 to 11 show an embodiment in which the stopper member 17 is formed of a member different from the upper finishing plate 11 and has a flange shape protruding from the side surface of the tubular member 10, 10 is a schematic exploded perspective view showing a direction different from that of FIG. 1 and FIG. 2, respectively, and FIG. 11 is a schematic sectional view along line CC of FIG. 9 to 11, the embodiment of the present invention is shown in the form of a vertically downwardly extending vertical fitting member 12 at the outermost edge of the stopper member 17 as in the embodiments of FIGS. 6 to 8, The vertical engaging member 12 may be omitted. In the present invention, the stopper member 17 is not limited to the flange-shaped flange, and is provided so as to protrude from the side surface of the pipe member 10, so that the pipe member 10 can move in the direction 20 so as to prevent the weight 20 from being pulled out from the upper end of the tubular member 10 when the upward vertical load acts on the tubular member 10, it may be provided in any form.

The weight 20 is a member having a thickness in the longitudinal direction of the pipe member 10, and is made to have a heavy weight such as concrete or mortar. In the weight 20, a plurality of through holes 25 are formed in the thickness direction. The plurality of through-holes 25 penetrate through the plurality of pipe members 10 described above. The pipe member 10 penetrates through the through hole 25 of the weight member 20 and penetrates into the seabed so that the weight member 20 serves as a guide when the pipe member 10 penetrates the bottom of the sea bottom. . That is, since the pipe member 10 is guided by the through-hole 25 of the weight body 20, it becomes very easy to penetrate and install the pipe member 10 while maintaining the vertical state of the pipe member 10.

As described above, since the stopper member 17 is provided at the upper end of the pipe member 10, the upper surface of the weight member 20 is inserted into the stopper member 17 so that the tubular member 10 is prevented from further penetration and a vertical load acts upward on the weight 20 in a state where the tubular member 10 is inserted into the seabed ground as described later The upward vertical load acting on the weight 20 acts on the stopper member 17 and is eventually transferred to the tubular member 10 so that the withdrawal resistance force acts on the tubular member 10 .

The plurality of tubular members 10 penetrate through the plurality of through holes 25 and penetrate the bottom of the seabed so that the weight member 20 ).

When the vertical fitting member 12 is further provided on the lower surface of the stopper member 17 as described above, the weight member 20 is fitted into the tubular member 10 so that the upper surface of the weight member 20, The vertical engaging member 12 is also fitted into the concave groove 22 of the weight body 20 when it comes into contact with the member 17. Thus, further coupling between the vertical engaging member 12 and the concave groove 22 is achieved, so that the integration and the coupling between the tubular member 10 and the weight 20 are further strengthened.

In the embodiment shown in Figs. 1 to 11, the planar shape of the weight 2 is shown as being circular, but the planar shape of the weight 2 in the present invention is not limited to such a circle. 12 and 13 show another embodiment of the present invention in which the weight 2 has a rectangular shape. FIG. 12 is a schematic exploded perspective view corresponding to FIG. 6, and FIG. 13 is a cross- 1 is a schematic assembled perspective view of an embodiment. As illustrated in the drawings, in the present invention, the weight 2 may have a rectangular planar shape, and further may have a planar shape of an oval or other polygonal shape instead of a rectangular shape.

In the present invention, when the plurality of tubular members 10 and the weight 2 are combined, the arrangement shape in which the tubular member 10 is engaged when viewed from the lower surface of the weight 2 can be variously changed . In other words, the optimum shape of the suction pile 1 for maximizing the support force is determined by grasping the topography, geology and the like of the seabed surface on which the foundation will be located through the preliminary surveying operation, ) Is determined according to the situation of the site. In particular, the length and the diameter of the pipe member 10 may be different depending on the height of the sea floor, or the intervals between the pipe members 10 may be different depending on the characteristics of the lipid of the sea floor.

Next, a construction method of the suction file 1 according to the present invention will be described.

FIGS. 14 to 18 are diagrams showing respective steps of a construction method for explaining a construction method of a suction file according to the present invention, wherein the suction file 1 is shown in a sectional state corresponding to FIG. 15 to 18, only the suction pile 1 in the water is shown in a sectional state.

In the installation of the suction file 1 of the present invention having the above configuration, first, the weight (including the through hole 25) corresponding to the diameter, spacing, and arrangement of the pipe member 10 20) is made of a material such as concrete or mortar. When the weight 20 is manufactured, as shown in FIG. 14, the weight 20 is placed on the upper surface of the seabed using the lifting equipment 30 such as a crane. When the top surface of the seabed ground is uneven, the weight 20 is maintained in a horizontal state by using the lifting equipment 30.

15, the plurality of tubular members 10 are respectively disposed on the upper surface of the weight 20 from the upper surface of the weight 20 in a state where the weight 20 is horizontally placed on the upper surface of the seabed ground 200 in the water, Through hole (25) of the housing (20). When the respective tubular member 10 is inserted into the through-hole 25, the tubular member 10 is guided by the through-hole 25 and is automatically vertically positioned So that the lower end thereof touches the upper surface of the seabed ground 200.

16 shows a state in which a plurality of tubular members 10 penetrate the through holes 25 of the weight 20 and the lower ends of the tubular members 10 are in contact with the upper surface of the seabed ground. In Fig. 17, (10) is penetrated into the seabed ground (200). The motor M installed on the barge or the like is operated to supply the water filled in the hollow 16 of the pipe member 10 through the pipe 13 to the pipe member 10, A negative pressure is formed inside the hollow 16 of the pipe member 10 so that a downward pipe input is generated by the water pressure so that the pipe member 10 is moved downward As shown in Fig.

18 shows a state in which a plurality of pipe members 10 passing through the through holes 25 of the weight 20 penetrate and are fixed to the seabed ground. The tubular member 10 can be intruded into the seabed until the upper surface of the weight 20 touches the stopper member 17 because the stopper member 17 is provided at the upper end of the plurality of tubular members 10 have. Of course, the tubular member 10 must not necessarily penetrate the bottom of the seam until the top surface of the weight 20 touches the stopper member 17. That is, the upper surface of the weight 20 may not touch the stopper member 17 in a state where the bottom of the pipe member 10 is completely grounded.

It is preferable that the tubular member 10 is vertically penetrated to the seabed so that the suction-based tubular member 10 can maximize its resistance against the horizontal load or vertical load (pulling force). In the present invention, as described above, when the pipe member 10 is installed in the bottom of the seabed, it passes through the through hole 25 of the weight 20. Therefore, when the weight 20 is horizontal, the tubular member 10 is automatically vertically held by the through-holes 25, which are vertically penetrated in the thickness direction of the weight 20, . That is, the through hole 25 of the weight 20 functions to guide the tubular member 10 so that the tubular member 10 can be inserted in a vertical state. Therefore, in the present invention, the pipe member 10 can be vertically penetrated and installed on the bottom of the submerged ground very easily, so that the effect of maximizing resistance to horizontal load or vertical load (pulling force) .

In the present invention, as described above, the vertical fitting member 12 may be further provided on the lower surface of the stopper member 17. In this case, when the pipe member 10 is fitted with the weight member 20, The vertical engaging member 12 is fitted into the concave groove 22 of the weight 20 so that the vertical engaging member 12 and the concave groove 22 So that the integration and the coupling between the tubular member 10 and the weight 20 can be further strengthened.

19 is a schematic view showing a state in which a suction file 1 according to the present invention is installed in a seabed sole and used for mooring a floating structure 400 at sea. When the suction pile 1 according to the present invention is used for mooring the floating structure 400, the mooring line 401 is connected to the weight 20. When a horizontal load is applied from the floating structure 400, the horizontal load is applied to the weight body 20, and thus the horizontal load is transmitted to the pipe member 10 in a state of being penetrated into the weight body 20, The penetrated pipe member 10 transmits and supports such a horizontal load to the seabed. 19, each of the drain pipes 13 provided in the plurality of pipe members 10 is connected to one motor M. However, this is shown for the sake of simplicity, Each of the motors M connected to the respective drain pipes 13 is separately operated by individually connecting separate motors M to the respective suction pipes 1 to drain the hollow inside of the respective pipe members 10, Can be stably installed on the seabed. Of course, it may be connected to one motor M.

When the vertical load acts on the weight 20 from the floating structure 400 upwardly, the upward vertical load applied to the weight 20 is applied to the stopper member 17. That is, since the stopper member 17 is located on the upper portion of the weight 20, the upward vertical load applied to the weight 20 acts as a pulling force vertical to the stopper member 17. The upward pulling force acting on the tubular member 10 through the stopper member 17 is not applied to the pullout resistance force exerted between the tubular member 10 and the bottom of the sea floor because the tubular member 10 is installed in the bottom of the seabed So that the suction file 1 stably maintains the mooring state of the floating structure 400.

Particularly, since the suction paddle 1 according to the present invention is composed of the plurality of pipe members 10, when viewed in the longitudinal cross-sectional shape of the pipe member 10, The outer circumferential surface of the plurality of pipe members 10 becomes longer, and when the suction paddle 1 is installed on the seabed ground, the area contacted with the seabed ground is drastically increased. As the peripheral friction area where the pipe member 10 comes into contact with the seabed ground is greatly increased, the peripheral frictional force between the suction pile 1 and the seabed ground is greatly increased, The resistance against the vertical load and the horizontal load is increased, and the suction pile 1 is more firmly fixed to the seabed. This increase in the peripheral friction area is further doubled by arranging the plurality of tubular members 10 at intervals.

The suction pile 1 according to the present invention is not only used as an anchor for mooring the floating structure 400 as described above but also can be used to fix and install the lower part of the wind power generator 300 when the wind power generator 300 is installed upright It can also be used as a foundation. 20 is a schematic view showing a state in which a suction file 1 according to the present invention is installed in a seabed ground 200 and a wind power generator 300 is installed on an upper part of a suction file 1 as an example of a sea structure. 20, a housing 301 is provided so as to surround the outside of the weight body 20, and the lower end of the wind power generator 300 is fixedly mounted on the housing 301, (300) as a foundation for standing up and fixing. Of course, the housing 301 may be omitted, and the lower end of the wind power generator 300 may be directly fixed on the weight 20.

As described above, the suction file 1 according to the present invention comprises a combination of the pipe member 10 and the weight 20. When the pipe member 10 is made of an FRP pipe member, it is light and cheap, So that it is very easy to carry to the sea, and further advantages such as low production cost and low installation cost are exerted. Further, the tubular member 10 made of FRP requires no additional steps such as corrosion prevention treatment as in the prior art using a steel pipe and concrete, thereby reducing manufacturing costs and reducing the production period do.

Particularly, in the present invention, since a plurality of pipe members are guided by a weight when they are installed in a seabed ground, they are easily vertically installed, so that an effect of maximizing a pulling resistance force is exhibited.

1: Suction file
10: Tubular member
20: Weight

Claims (3)

delete In a state in which the weight 20 having the plurality of through holes 25 formed to penetrate the thickness thereof is placed on the upper surface of the seabed ground,
Each of which has a hollow 16 and has an upper end finished by an upper finishing plate 11 having a drain hole to which a drain pipe 13 is connected and which has a stopper member 17 projecting outward on the side surface, (10) is installed so as to be guided and raised by the through hole (25) by passing through the through hole (25) downward from the upper surface of the weight (20)
The water in the hollow 16 of the tubular member 10 is drained through the drain pipe 13 while the lower end of the tubular member 10 is in contact with the surface of the bottom of the seabed so that the tubular member 10 is penetrated into the bottom of the seabed ;
The stopper member (17) is provided with a vertical fitting member (12);
On the upper surface of the weight 20, there is formed a concave groove 22 into which the vertical fitting member 12 can be fitted;
When the pipe member 10 is inserted through the weight body 20 and fixed to the bottom of the seabed, the vertical fitting member 12 is fitted in the concave groove 22;
Since the stopper member 17 protrudes outside the side surface of the tubular member 10 when the tubular member 10 is inserted into the weight member 20 and an upward vertical load acts on the weight member 20, Characterized in that the weight member (20) is prevented from being pulled out of the tubular member (10) due to the upward vertical load and is transmitted to the tubular member (10) through the stopper member (17) Suction file made of material.
Placing a weight (20) having a plurality of through holes (25) through the thickness thereof in water and arranging the weight (20) on the upper surface of the seabed ground;
Each of which has a hollow 16 and has an upper end finished by an upper finishing plate 11 having a drain hole to which a drain pipe 13 is connected and which has a stopper member 17 projecting outward on the side surface, (10) through the through hole (25) downwardly from the upper surface of the weight (20) and being guided by the through hole (25) and standing upright; And
The water in the hollow 16 of the tubular member 10 is drained through the drain pipe 13 while the lower end of the tubular member 10 touches the surface of the seabed so that the tubular member 10 penetrates into the bottom of the seabed ≪ / RTI >
A vertical fitting member 12 is provided on the stopper member 17 and a concave groove 22 capable of fitting the vertical fitting member 12 is formed on the upper surface of the weight member 20, Is inserted through the weight body (20) and fixed to the bottom of the sea floor, the vertical fitting member (12) is fitted in the concave groove (22);
Since the stopper member 17 protrudes outside the side surface of the tubular member 10 when the tubular member 10 is inserted into the weight member 20 and an upward vertical load acts on the weight member 20, Characterized in that the weight member (20) is prevented from being pulled out of the tubular member (10) due to the upward vertical load and is transmitted to the tubular member (10) through the stopper member (17) A method of constructing a suction file comprising a member.

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