KR20210104230A - Small pile used semi-permanently to fix offshore structures - Google Patents

Abstract

The present invention relates to a semi-permanent small pile for fixing a marine structure, which can be used to make a considerable rise in resistance for a marine structure installed on the sea or in the sea bottom to resist a force of a strong sea current or a strong wave pushing the structure away by making an anchor open into a V-shape, while eliminating the need to remove parts stuck in soil in the sea bottom. According to the present invention, the semi-permanent small pile includes: driving piles (10) provided on both sides of a lower part of a shaft coupling hole (13) respectively, and individually including a lower sharp part (11) and an upper rope connection ring (12); a pair of anchors (20, 20') having a long rotary plate part (21) having a hinge through hole (24) provided in a lower part to be penetrated by a hinge bolt shaft (30) coupled with the shaft coupling hole (13), and a soil lead-in groove part (23) having a soil receiving part (22) provided in an orthogonal direction of one side of the rotary plate part (21); a pair of closure prevention stoppers (40) provided to be individually fixed to one side of an upper part of the hinge through hole (24) to prevent the pair of anchors (20, 20') rotated around the hinge bolt shaft (30) from being rotated to be linear in a longitudinal direction with the driving piles (10); and a pair of opening control stoppers (41) provided to be individually fixed to one side of a lower part of the hinge through hole (24) to prevent the pair of anchors (20, 20') from becoming open in a V-shape and keeping the shape by preventing the pair of anchors (20, 20') from being rotated toward the lower sharp part (11).

Description

Small pile used semi-permanently to fix offshore structures}

The present invention relates to a small pile installed in the sea or on the seabed so that it is embedded in the seabed soil to prevent it from being pushed away by ocean currents or waves, so that it is connected to the marine structure with a rope to be fixed, and more particularly, to the seabed It is about a semi-permanent small file used for a purpose that does not need to be removed from what is embedded in the soil.

Although the anchor as described in the patent document of the prior art document is disclosed in the prior art, this is to open a pair of anchor pieces in the form of an inverted V, such as "Λ" by the initial convex member.

Therefore, in the prior art, a pair of anchor pieces are opened in an inverted V shape like "Λ" only when the initial convex member is pulled upwardly. Not only is it not difficult to pull it, but if a pair of anchors are opened in a reverse vee shape like "Λ" and the seabed soil is not hard and soft, a pair of anchors will be opened in a reverse vee shape like "Λ". When the force pushed away by strong currents or strong waves is applied to the structures installed on the sea or the seabed, they cannot withstand the force and fall out of the seabed soil. There is a problem of being washed away by the waves.

In addition, in the prior art, a pair of anchor pieces are opened in an inverted V-shaped shape like “Λ”, and when a structure installed on the sea or the seabed is demolished, a pair of anchor pieces are opened in an inverted V-shaped shape like “Λ” inside, respectively. This is to minimize the resistance of the subsea soil by folding it in the direction of the seabed so that it can be pulled out easily. In order for a pair of anchor pieces to open in an inverted V shape like “Λ”, the structure is very complicated, which leads to an increase in cost. However, because there are many parts, it has a complicated structure, which causes a problem of relatively lowering rigidity.

And, since the above-mentioned prior art is made so that it can be withdrawn again by pulling out what is embedded in the subsea soil, the structure is complicated and the cost increase is greatly increased. There are non-economic problems.

KR 10-1682446 B1 2016.12.05

In the present invention, the anchor is opened in a V-shape, so that the resistance that can resist the force pushed by strong currents or strong waves of offshore structures installed on the sea or on the seabed is greatly increased, while the ones embedded in the seabed are removed. The purpose is to provide a semi-permanent small file that is used for a purpose that does not have to be done.

Another object of the present invention is to provide a semi-permanent small pile with a relatively simple structure and cost reduction, so that it can be achieved to reduce the cost of installation of offshore structures requiring a large number of small piles.

The present invention is provided with a shaft fastening hole on both sides of the lower portion, a drive pile having a lower end point and an upper rope connecting ring, respectively, and a hinge through hole through which a hinge bolt shaft fastened to the shaft fastening hole passes in the lower portion and a pair of L-shaped anchors having a soil inlet groove portion provided with a mudguard in a direction perpendicular to one side of the rotation plate portion, and a pair of anchors rotated about the hinge bolt axis is the length of the screw pile. A pair of anti-tear stoppers and a pair of anchors, each fixedly provided on the upper part of the hinge through-hole to prevent rotation in a straight line in the direction It is characterized in that it is configured to include a pair of gap control stoppers that are fixedly provided.

The pair of anchors have a long-length part having a relatively long length toward the upper side with respect to the hinge through-hole, and a short-length part with a relatively short length toward the lower side with respect to the hinge through-hole when driving a sewing pile. Another feature is that it is configured so that the subsea soil pushing force generated by the contact of the seabed soil is relatively more applied to the long-length part.

The present invention provides a small pile for fixing offshore structures in which the resistance to counteract the force pushed by strong currents or strong waves of structures installed on the sea or the seabed is greatly increased because the anchors are opened in a V shape. It works.

In addition, in the present invention, since the anchor is stuck in the seabed soil in a state in close contact with the outer circumferential surface of the seam pile, the anchoring resistance is small, so that the installation and construction is very easy.

In addition, the present invention has the effect of reducing the manufacturing cost because the small pile structure that does not need to be pulled out again is relatively simple, and the cost of installing a large number of small piles is greatly reduced, so that external competitiveness is increased. it will work

1 is a partially separated perspective view of a small file according to the present invention;
2 is a front view showing the configuration of a small file according to the present invention;
3 is a plan view of a small file according to the present invention;
Figure 4 is an operational explanatory view of the state in which the anchor according to the present invention is folded;
5 is an explanatory diagram of the operation of the anchor according to the present invention in a deployed state.

The present invention will be described in more detail based on the accompanying preferred embodiments as follows.

1 to 3, the present invention is broadly divided, a long fitting file ( 10) and the drive pile 10 are provided on both sides of the lower side, so that when the drive pile 10 is driven into the seabed, it rotates to shrink, and after the drive pile 10 is completely embedded, it opens in a V shape. It is composed of a pair of anchors 20 and 20' and all are made of metal.

Therefore, the sewn pile 10 is provided with shaft fastening holes 13 on both lower sides, respectively, and has a lower pointed portion 11 and an upper rope connecting ring 12, respectively.

The pair of anchors 20 and 20' includes an elongated rotating plate 21 having a hinge through hole 24 through which the hinge bolt shaft 30 fastened to the shaft fastening hole 13 penetrates, and the rotation. The plate part 21 is configured in an L-shape so as to have a mud receiving portion 22 in a direction perpendicular to one side of the plate portion 21 to have a soil inlet groove portion 23 . However, in some cases, another narrow-width mudguard 22 ′ may be further provided on one side of the rotating plate 21 to face the mudguard 22 .

In addition, as shown in FIG. 2, the pair of anchors 20 and 20' includes a long-length portion 20a having a relatively long length toward the upper part of the hinge through-hole 24, and the hinge through-hole 24. ) to have a short-length portion 20b having a relatively short length toward the lower portion, so that when the driving pile 10 is driven, the contact pressing force of the seabed soil is relatively more applied to the long-length portion 20a, It is preferable to configure the tooth portion (20a) to rotate in the direction of the sewn pile (10).

And in the present invention, as shown in FIGS. 1 and 4 , a pair of anchors 20 and 20 ′ rotated about the hinge bolt shaft 30 are rotated to form a straight line in the longitudinal direction with the sewn pile 10 . A pair of anti-tear stoppers 40 are provided to be fixed to one side of the upper side of the hinge through-hole 24 to prevent it from happening.

In addition, as shown in FIGS. 1 and 5, the pair of anchors 20 and 20' are prevented from being rotated in the direction of the lower pointed part 11 so that the pair of anchors 20, 20' are spread out in a V-shape. It is configured to include a pair of flaring control stoppers 41 that are respectively fixedly provided on one side of the lower side of the hinge through-hole 24 in order to be maintained.

Therefore, in the present invention, a pair of anchors ((20, 20') can be rotated about the hinge bolt shaft 30. However, in Fig. 4, the long-length part 20a of the anchors ((20, 20') is screwed in. When rotating in a direction closer to the pile 10, the long-length portion 20a is caught in the anti-tear stopper 40 as shown by a solid line in FIG. As shown by the solid line, when the long-length part 20a of the anchor (20, 20') rotates in the direction away from the stitching pile 10, the short-length part 20ba is caught in the splay control stopper 41, It is designed so that it can no longer rotate.

Therefore, the present invention is to hit the upper end of the drive pile 10 using a hammer of a driving machine (not shown) and install it to be embedded in the seabed soil, in this case, as shown by a solid line in FIG. 4, a pair of anchors 20, 20 ') is to be embedded in the seabed soil in a state of being erected in the longitudinal direction of the screw pile (10). The seabed soil refers to a state in which sand and soil are mixed.

Therefore, since the area in contact with the seabed soil is in contact with the long-length part 20a more in the process of embedding the drive pile 10 as described above, the seabed soil is in contact while the drive pile 10 is embedded. Since the generated subsea soil pushing force is more applied to the relatively long-length portion 20a, the long-length portion 20a is in a state of being rotated in the direction of the anti-squeezing stopper 40 in FIG. is to be embedded in the seabed soil while maintaining the folded state to be erected in the longitudinal direction of the fitting pile 10 without opening as in the virtual line state in FIG. When the anchors 20 and 20' are kept in the folded state erected in the longitudinal direction of the stitching pile 10, they are easily embedded in the seabed soil.

And when the stitching pile 10 is driven, the long-length part 20a of the anchors 20 and 20' rotates in the direction of the anti-tear stopper 40 in FIG. As the state is reached, the rotation of the anchors 20 and 20' is stopped, and therefore the anchors 20 and 20' are folded in a state with a slight inclination angle rather than being completely erected in parallel in the longitudinal direction of the stitch pile 10. It is built up so that it is embedded in the soil of the seabed.

Therefore, even in a state in which the fitting pile 10 is completely embedded in the seabed soil, the long length portion 20a of the anchors 20 and 20' as shown by the solid line in FIG. It is built in a folded state with an inclination angle and is in a state embedded in the seabed soil, and in this state, as shown in FIG. 5, one end of the connecting rope (L) is It is bound, and the other end of the connecting rope is bound to and connected to an offshore structure (not shown) installed on the sea or the seabed, and an example of an offshore structure is an anti-fouling film.

That is, the driving pile 10 is driven until the upper rope connecting ring 12 is close to the seabed soil surface, and after the driving is completed, the upper rope connecting ring 12 has a connecting rope (L) connected to the marine structure. ) will be fixed.

Accordingly, the offshore structure is to ride a wave while floating on the sea, so that the connecting rope (L) connected to the offshore structure is pulled in the direction of the offshore structure, and the connecting rope (L) bound to the upper rope connecting ring 12 in this way ) is pulled upward, and in this case, when the pulling force of the connecting rope (L) is smaller than the driving force of the sewing pile 10, the anchors 20 and 20 ′ are the anchors 20 and 20 as shown in FIG. 4 with a solid line. ') of the long-length portion (20a) of the stopper 40, while maintaining the jammed state as it is, the offshore structure connected by the connecting rope (L) It plays a role of not being pushed by the waves. .

However, when the force that causes the offshore structure to be pushed out by the waves becomes strong and the pulling force of the connecting rope (L) becomes relatively larger than the driving force of the drive pile 10, the drive pile 10 moves upward little by little. It is in a state of being moved out of the seabed soil in a state of being moved, and as a result, the fitting pile 10 and the anchors 20 and 20' are simultaneously moved upward.

At this time, since the anchors 20 and 20' are moved upward at the same time as the seam pile 10, the seabed soil on the upper side of the long length portion 20a enters the soil inlet 23 of the anchors 20 and 20'. In a state where the subsea soil introduced into the soil inlet 23 is in a state of being in a state where the soil inlet 23 is pressed, the anchors 20 and 20 ′ are the hinge bolt shaft 30 as shown by a solid line in FIG. 5 . ) is rotated in the outward direction of the sewn pile 10 to be in a state of being opened.

And as the seabed soil that enters the soil inlet 23 increases whenever the fitting pile 10 is moved further upward, the anchors 20 and 20' are opened to both sides as shown by the solid line in FIG. 5 . action that develops into

And as shown by the solid line in FIG. 5, when the long-length part 20a of the anchor (20, 20') is rotated in a direction away from the stitching pile 10 and unfolded in an open state, the splay control stopper 41 ) is caught in the short-length part 20ba and can no longer rotate, so the anchors 20 and 20' are no longer turned outward, and in this state, a pair of anchors 20, 20' Because it is in the shape of a shape and does not fall out because it is caught in the seabed soil, it has a strong counter force (resistance) against the strong pulling force of the connecting rope (L). won't go

And as described above, the short-length portion 20ba is caught in the splay control stopper 41 of the anchors 20 and 20', and the state that it cannot rotate any more is maintained as it is, so the anchors 20 and 20' are no longer rotated outward. ) cannot be rotated, so the fitting pile 10 cannot be pulled out of the seabed soil and has no choice but to be embedded in the seabed soil semi-permanently.

Therefore, in the present invention, since the anchors 20 and 20' are opened in a V-shape, the resistance to which the offshore structures installed on the sea or the seabed can resist the force pushed by the strong currents or strong waves is greatly increased. A small file will be provided.

In addition, according to the present invention, since the anchors 20 and 20' are embedded in the seabed soil in a state in which the anchors 20 and 20' are almost erected in the longitudinal direction of the screw pile 10, the drive resistance is small, so that the installation and construction is very easy, thereby shortening the construction time As a result, the construction cost is greatly reduced.

And since the present invention can have a relatively simple structure as it is configured so that it is not necessary to pull out the small pile embedded in the seabed soil again, the manufacturing cost is greatly reduced.

The present invention is not necessarily limited to what has been shown and described in the drawings and may be modified and implemented in various forms by those of ordinary skill in the art to which the present invention pertains, so it should be broadly protected as long as it does not significantly depart from the scope of the claims. thing is self-evident.

10: Stitching pile 11: Lower pointed part
12: upper rope connecting ring 13: shaft fastening hole
20,20': Anchor 20a: Long Length Part
20b: short length part 21: rotating plate part
22: mudguard part 22': narrow width mudguard part
23: soil inlet 24: hinge through hole
30: Hinge bolt shaft 40: Crush prevention stopper
41: spread control stopper L: connecting rope

Claims (2)

Stitching piles 10 each having shaft fastening holes 13 on both sides of the lower portion, and each having a lower pointed portion 11 and an upper rope connecting ring 12;
A long rotating plate 21 having a hinge through-hole 24 through which the hinge bolt shaft 30 fastened to the shaft fastening hole 13 penetrates, and the rotating plate 21, a mudguard in a direction perpendicular to one side. and a pair of L-shaped anchors 20 and 20' having a soil inlet groove 23 provided with a portion 22;
In order to prevent the pair of anchors 20 and 20', which are rotated about the hinge bolt shaft 30, from rotating to become a straight shape in the longitudinal direction with the stitching pile 10, each of the hinge through-holes 24 are on the upper side. A pair of clamping prevention stoppers 40 and a pair of anchors 20 and 20' that are fixedly provided in a V-shape are opened and maintained in a V-shape. A semi-permanent small file for fixing an offshore structure, characterized in that it is configured to include a splay control stopper (41).
The method of claim 1,
The pair of anchors 20 and 20 ′ have a long length portion 20a having a relatively elongated length toward the upper side with respect to the hinge through hole 24 , and the lower portion with respect to the hinge through hole 24 as the center. It is characterized in that it has a short length portion 20b having a short length so that when the driving pile 10 is driven, the seabed soil pushing force generated by contact with the seabed soil is relatively more applied to the long length portion 20a. Semi-permanent small pile for fixing offshore structures.

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