KR101048237B1 - Block for covering of corner portion of sea mound - Google Patents

Abstract

PURPOSE: A corner coated block of a sea mound is provided to prevent damage to coated concrete blocks due to waves. CONSTITUTION: An inclined part(101) and a top part(102) meet at an upper edge. An upper corner coated block is coated on the upper edge. The length of a flat part changes according to the scale of a mound(100) and the size of a coated concrete block(110). The inclined part and a leading end(301) of the mound meet at a lower edge. A lower corner coated block is coated on the lower edge.

Description

Block for Covering of Corner Portion of Sea Mound}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a corner covering block of a subsea mound which covers a corner portion of a mound which constitutes a breakwater, a piercing, a releasing agent, and the like, and a corner portion is covered by the corner covering block.

In case of using caissons to build breakwaters for the purpose of protecting the internal harbor facilities against blue waves, and at the same time, it is possible to stabilize the harbor in order to allow safe navigation, anchorage, and smooth unloading. The basis for supporting the caisson is typically constructed from a mound of trapezoidal cross section.

FIG. 1 is a schematic cross-sectional perspective view of a state in which a subsea foundation supporting a caisson (not shown) is constructed with a mound 100 of trapezoidal cross section, and FIG. 2 is a schematic cross-sectional view along the line AA of FIG. 1. Is shown. As shown in the drawing, the mound 100 includes an inclined portion 101 having an inclined surface inclined upwardly from the tip portion 301 and a top end portion 102 formed horizontally at an upper end of the inclined portion 101. A dead stone or coated stone 103 is built on the sea bottom so as to have a trapezoidal cross section. For convenience, the x-x direction of the arrow in FIG. 1, that is, the longitudinal direction of the mound 100 is expressed as a “longitudinal direction”.

The mound 100 is not only built as a foundation of a breakwater using a caisson, but is to be a small breakwater itself such as acupuncture, jetty, and langue, which is installed on a coast with low water depth. It can also be built. By the way, such acupuncture, stone, langue, etc. are directly affected by blue, so that the concrete block having a weight greater than that of the sandstone or the coated stone to protect the surface of the mound ( 110 covers the surface of the mound 100 and the surface of the tip 301.

Conventional coated concrete block 110 is made of a rectangular or square block having a thickness, as shown in Figures 1 and 2, the conventional coated concrete block 110, the inclined portion 101 of the mound 100 And the top end portion 102 and the bottom portion of the inclined portion 101, that is, the bottom surface portion, that is, the surface of the tip portion 301, the upper edge portion of the mound 100, that is, the inclined portion of the mound 100 At the apex of the upper edge where the 101 and the top end 102 meet (point b at the position indicated by circle B in FIG. 2), the coated concrete block 110 is not continuous and a gap exists. In addition, at the vertex of the lower edge portion of the mound 100, that is, the lower edge portion where the inclined portion 101 and the tip portion 301 meet (point d at the position indicated by the circle D in FIG. 2), The lower surface is not continuous with each other and a gap exists.

In this way, the upper edge portion of the mound 100, in which the covering concrete block 110 is not continuous, becomes a structurally weak position, thereby causing a phenomenon in which damage is spread from the upper edge portion to the surrounding covering concrete block 110. . In addition, when the scour of the seabed generated from the tip portion 301 reaches the lower edge portion of the mound 100 in which the coated concrete block 110 is not continuous, it moves, falls, and moves to the coated concrete block installed at the lower edge portion. This phenomenon occurs. These phenomena may eventually lead to the collapse of the mound 100.

The present invention was developed to solve the above problems, specifically, in covering the surface of the mound 100 and the surface of the tip portion 301 with a coated concrete block 110, the upper edge of the mound 100 The purpose of the present invention is to improve structural stability of the mound 100 by preventing the occurrence of damage or detachment of the coated concrete block 110 due to the failure of the coated concrete block 110 in the lower edge portion. do.

Specifically, in the present invention, in covering the surface of the mound 100 and the surface of the tip portion 301 with the coated concrete block 110, the bent type that can continuously cover the upper and lower corners of the mound 100 It is an object of the present invention to provide a corner covering block, and to use this bent corner covering block to construct a mound that is structurally stable and can exhibit high resistance against large waves.

In order to achieve the above object, in the present invention, the two plate portions made of a rectangular having a thickness is configured in a form that is coupled to each other with a connection angle of more than 90 degrees less than 180 degrees; An inclined portion having an inclined surface inclined upwardly from the distal end portion and a mound formed on the bottom surface so as to have a trapezoidal cross section consisting of a top end portion formed horizontally at the upper end portion of the inclined portion, wherein the upper edge portion where the inclined portion and the end portion meet Or at the lower edge portion where the inclined portion and the tip portion meet, the flat plate portion is placed on the mound surface of the inclined portion and the top end portion, or the inclined surface and the tip surface of the mound surface, respectively. There is provided a corner covering block, characterized in that to protect the surface of the corner of the mound.

In the present invention, the inclined portion having an inclined surface inclined upwardly from the distal end portion, and is formed on the sea bottom to have a trapezoidal cross section consisting of a top end portion formed horizontally at the upper end of the inclined portion, the tip portion, the inclined portion and the tip end The surface of the portion is a mound covered with a rectangular coated concrete block having a thickness, wherein the corner covering block of the present invention is continuous to the mound surface of the inclined portion and the top end portion or to the mound surface of the inclined portion and the tip portion. The side of the coated concrete block is installed in the upper edge portion or the lower edge portion is installed on the inclined portion, the top end portion, or the front end portion is provided with a mound which is in surface contact with the flat plate side of the corner covering block do.

In the corner-covered block and the mound using the same according to the present invention, the side of the corner-covered block, can be formed irregularities engaging with the side of the coated concrete block is installed on the surface of the mound; The flat plate portion of the corner covering block is formed with a through hole penetrating up and down the flat plate portion so that seawater can pass therethrough; On the lower surface of the corner covering block in contact with the surface of the mound, a protrusion supporting in the surface direction of the mound so that a gap is formed between the lower surface of the corner covering block and the surface of the mound so that seawater passing through the through hole can flow. It may be formed in a protruding state.

According to the present invention, an inclined portion having an inclined surface inclined upwardly from the distal end portion and a trapezoidal cross section consisting of a top end portion formed horizontally at an upper end portion of the inclined portion are provided on the sea bottom, and the distal end portion, the inclined portion, and the In the mound covered with a rectangular coated concrete block having a thickness on the top end portion, the upper edge portion where the inclined portion and the top portion meet or the lower edge portion where the inclined portion and the tip portion meet are continuously covered with a corner covering block, The cover concrete blocks are prevented from being exposed at the corners of the mound and the side surfaces of the cover concrete blocks positioned before and after the corner covering block are not exposed, so that the cover concrete blocks are damaged due to movement, dropping and rolling by the blue. To prevent it and The effect of improving the structural stability of the mound is exerted.

1 is a schematic cross-sectional perspective view of a state where a supporting subsea foundation of a caisson is constructed of a conventional mound having a trapezoidal cross section.
2 is a schematic cross-sectional view taken along line AA of FIG. 1.
3 and 4 are schematic perspective views showing different directions of looking at the bent corner covering blocks according to the embodiment of the present invention.
5A is a view corresponding to FIG. 1, which is a schematic cross-sectional perspective view of a mound according to the present invention having the corner covering blocks of FIGS. 3 and 4 installed.
FIG. 5B is a view corresponding to FIG. 2, which is a schematic cross-sectional view of a mound according to the present invention in which the corner covering blocks of FIGS. 3 and 4 are installed.
FIG. 6 is a schematic cross-sectional view showing a state in which the coated concrete block around the circle B portion is dropped in the state shown in FIG. 2.
9 and 10 are diagrams corresponding to FIGS. 7 and 8, respectively, and are schematic cross-sectional views of a corner covering block according to the present invention disposed as a lower corner covering block over the tip portion and the inclined portion.
FIG. 11 is a view corresponding to FIG. 5A, which is a schematic cross-sectional perspective view of a mound using an embodiment in which irregularities are formed on side surfaces of a corner covering block in accordance with a shape of a covering concrete block. FIG.
12 to 15 are schematic perspective views of yet another embodiment of a corner covering block according to the present invention, respectively.

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, this is described as one embodiment, whereby the technical spirit of the present invention and its core configuration and operation are not limited.

3 and 4 are schematic perspective views showing different directions of looking at the bent corner covering block 1 according to the embodiment of the present invention, respectively, and FIGS. 5A and 5B are FIGS. 1 and 5, respectively. As a view corresponding to 2, there is shown a schematic cross-sectional perspective view and a cross-sectional view of the mound 100 according to the invention with the corner covering block 1 of FIGS. 3 and 4 installed.

As shown in the drawings, the corner covering block 1 according to the present invention, which can be made of concrete, the two flat plate 11 made of a rectangle having a thickness has a connection angle of more than 90 degrees and less than 180 degrees It has a form that is connected to each other. It is preferable that the thickness of the flat plate portion 11 is the same as the thickness of the covering concrete block 110 to be adjacent so that any drag or lift force does not occur when the waves invade. The length of each square side of the flat plate portion 11 may be changed as necessary in consideration of the size of the mound 100 to be built and the size of the coated concrete block 110.

In the present specification, when the corner covering block 1 is installed at the upper edge portion where the inclined portion 101 and the top end portion 102 of the mound 100 meet and covers the surface of the upper edge portion, it is referred to as "upper corner covering block". Namely, when the inclined portion 101 and the tip portion 301 of the mound 100 is installed at the lower edge portion to cover the surface of the lower edge portion is named "lower corner covering block".

In the case of the "upper corner covering block", the angle formed between the surface of the inclined portion 101 and the surface of each flat portion 11 directly contacting the surface of the top end portion 102 is greater than 90 degrees to 180 degrees. An obtuse angle of less than a degree is achieved. On the contrary, in the case of the "lower corner covering block", the surface of each of the flat plate parts 11 having an obtuse angle of more than 90 degrees but less than 180 degrees does not contact the surface of the mound 100, but more than 180 degrees. The surface of the flat plate portion 11 having a connection angle of less than 270 degrees is in contact with the surfaces of the inclined portion 101 and the tip portion 301, respectively. That is, the corner covering block 1 according to the present invention may be used as an upper corner covering block as needed, or may be disposed in an inverted state and used as a lower corner covering block. The connection angle between the two flat plates 11 forming the corner covering block 1 is the shape of the mound 100 to be constructed, that is, the angle between the inclined portion 101 and the top end portion 102 or the inclined portion 101. ) And the tip 301, but are approximately 135 to 160 degrees.

As shown in FIGS. 5A and 5B, the corner covering block 1 has a length along the length of the mound 100 as an "upper corner covering block" and a "lower corner covering block" at the upper and lower corners, respectively. A plurality is arranged continuously in a direction. The other portions of the inclined portion 101, the top end portion 102, and the tip portion 301, like the conventional mound 100, are continuously covered with the "upper corner covering block" and "lower corner covering block". This is arranged to cover the surface of the mound (100). Since the top end portion 102 is formed of a flat surface, when the upper corner covering block is installed at the upper corner portion, one of the flat plate portions placed on the upper surface of the top end portion 102 among the two flat portions 11 constituting the upper corner covering block. The side surface is interviewed with the side surface of the cover concrete block 110 is installed on the top surface of the top end 102, the upper corner covering block and the cover concrete block 110 of the top end 102 is continuous. In addition, since the inclined portion 101 is also made of a flat surface, the surface of the inclined portion 101, that is, the other flat plate portion placed on the inclined surface of the two flat portions 11 forming the upper corner covering block, the inclined portion 101 It is interviewed with the side of the coated concrete block 110 is installed on the surface of, the upper concrete cover block and the covered concrete block 110 of the inclined portion 101 is continuous.

Similarly, when the two flat plate portions constituting the lower corner covered block are placed on the surface of the inclined portion 101 and the surface of the tip portion 301, respectively, similarly to the lower corner covered block, the inclined portion 101 The coated concrete block 110 is installed on the surface of the surface and the surface of the tip portion 301 and the side surfaces thereof are continuously arranged in the form of an interview.

In the following, in detail, the effect that is exerted when the upper corner covering block and the lower corner covering block is installed in the mound.

As described above in the "Background" column, when installing only the conventional concrete cover block 110 made of a rectangular or square, the concrete cover block 110 is not continuous in the upper corner as shown in circle B of Figure 2 There is a gap.

As the blue invades in the state where the gap exists, the coated concrete block 110 positioned before and after the vertex (point b at the position indicated by the circle B in FIG. 2) of the upper edge part is caused by blue. Force is applied to the side of the coated concrete block 110, so that drag and lift force act on the coated concrete block 110, so that the coated concrete block 110 is dropped. FIG. 6 is a schematic cross-sectional view showing a state where the coated concrete block 110 around the circle B portion is dropped in the state shown in FIG. 2. As such, when the coated concrete block 110 is dropped, the dead stone or coated stone 103 existing on the surface of the mound 100 is exposed to seawater and scattered, and the dropping and covering stone 103 of the coated concrete block 110 is scattered. The scattering phenomenon due to the exposure of) spreads from the vertex of the upper edge portion to the whole mound, and eventually causes the mound 100 to collapse.

However, as shown in FIGS. 5A and 5B, when the upper corner covering block is installed at the upper corner portion, there is no discontinuity gap at the vertex of the upper corner portion, and the presence of the gap of the coated concrete block 110 due to the presence of the gap. There is no side exposure. Therefore, even if a large wavelength is invaded, the dropping phenomenon of the coated concrete block 110 before and after the vertex of the upper edge part as in the prior art does not occur, thereby increasing the structural stability of the mound 100.

On the other hand, in the case of the lower corner portion where the tip portion 301 and the inclined portion 101 meet, the lower corner covering block is provided, thereby achieving the following effects.

The bottom of the sea floor is constantly changing due to the effects of blue or algae, and the bottom of the sea is always changing. When building the mound, there is a reasonable contrast against the bottom erosion among the changes of the sea floor. need. In particular, in the case of acupuncture or langue, etc., since a high wave or coastal erosion is mainly installed in a severe place, a mound should be constructed with the rigid structure which can respond to such a sea bottom change.

In order to cope with the change of the sea bottom, the front end portion 301 of the mound, that is, the front end portion 310 of the mound that meets the inclined portion 101, may be provided with one or three coated concrete blocks 110 toward the sea. do. In addition to the purpose of controlling the bottom erosion of the front end portion 301, the coated concrete block 110 is installed on the tip portion 301, the cover concrete block 110 provided on the inclined portion 101 of the mound 100 is slippery. It also has a purpose as a support for supporting the coated concrete block 110 so as not to fall.

Although not shown in the drawings, in general, the bottom of the coated concrete block 110 is installed on the tip 301, the sheet is laid down to the vertex of the lower edge (point d at the position indicated by circle D in Fig. 2) It is to prevent the sand or gravel from moving to the outer end point of the coated concrete block 110 installed in the front end portion 301 from.

However, even when the sheet is laid in this way, a disturbance occurs in the coated concrete block 110 installed at the tip 301 due to erosion of the sea bottom, so that the coated concrete block 110 is scattered, thereby inclined portion 101. In addition, the stability of the coated concrete block 110 installed in the threatening phenomenon occurs.

In particular, among the covered concrete blocks 110 provided at the tip portion 301, the coated concrete block 110 closest to the inclined portion 101 is in a very unstable state when the bottom surface existing underneath is scoured. 7 and 8 show the cover concrete block 110 of the tip portion 301 disposed closest to the inclined portion 101 in the conventional mound 100 in cross-sectional view, respectively, and FIG. The state before scour occurs and FIG. 8 shows the state where scour progressed.

As shown in FIG. 7, in the installed concrete block 110 of the tip part 301, the center of gravity G exists in the position which is 1/2 of the longitudinal width W of the coated concrete block 110. As shown in FIG. . By the way, the bottom surface scour at the tip portion 301 proceeds, and as shown in FIG. 8, the bottom length L of the tip portion 301 supporting the bottom surface of the coated concrete block 110 is the coated concrete block ( When less than one half of the longitudinal width W of the 110, the coated concrete block 110 is inclined in the scoured direction (arrow direction of Figure 8), and thus the coated concrete disposed on the inclined portion 101 The support force for the block is also weakened, so that the sliding of the coated concrete block disposed on the inclined portion 101 occurs.

However, according to the present invention, if the lower corner covering block is installed in the lower corner, the above problem does not occur.

9 and 10 are views corresponding to FIGS. 7 and 8, respectively, wherein the corner covering block 1 according to the present invention is disposed as the lower corner covering block over the tip portion 301 and the inclined portion 101. A schematic cross section of is shown. As shown in Figure 9 and 10, the center of gravity (G) of the lower corner covering block according to the invention is located close to the vertex (d) of the lower corner. Therefore, even if scour occurs in the tip portion 301 with the length shown in FIG. 8, the center of gravity G of the lower corner covered block is still present at a position within the length L supporting the lower corner covered block. As a result, the lower corner covering block is not inclined and remains in place. Accordingly, the supporting force for the coated concrete block disposed on the inclined portion 101 can be maintained and maintained on the inclined portion 101. It is also possible to prevent the sliding phenomenon of the coated concrete block.

In addition, in the related art, the cover concrete block provided at the tip portion 301 and the cover concrete block positioned at the bottom of the inclined portion 101 are in line contact at the upper edge of the block. Therefore, when transferring loads between the coated concrete blocks, not only does the load balance not occur, but also the concentrated load due to the contact acts on the narrow portion that is in line contact, and damage such as acupressure breakage occurs.

However, in the case of the lower corner covering block according to the present invention, there is a surface contact with the coated concrete block installed on the inclined portion 101 at its side, and the surface of the coated concrete block installed at the front end 301 is also in surface contact with each other at its side. Therefore, when the load is transferred between the coated concrete blocks, the load balance is excellent, and the concentrated load due to the line contact can be prevented, thereby exerting an excellent effect on preventing damage such as acupressure destruction. The surface contact at the side with this neighboring coated concrete block is the same for the upper corner covered block. That is, as described above, the side surface of the flat plate placed on the inclined portion 101 of the two flat plate 11 of the upper corner covering block is in surface contact with the coated concrete block 110 disposed on the inclined portion 101 The side surface of the flat plate placed on the top end portion 102 of the two flat plate portions 11 of the upper corner covering block is in surface contact with the coated concrete block 110 disposed on the top end portion 102. Therefore, the problem due to the line contact does not occur.

FIG. 11 is a view corresponding to FIG. 5A, which is a schematic cross-sectional perspective view of the mound 100 using an embodiment in which irregularities are formed on the side of the corner covering block 1 in accordance with the shape of the coated concrete block 110. It is.

Interlocking concavities and convexities may be formed on the side surfaces of the clad concrete block 110 in order to strengthen the mechanical coupling between the clad concrete blocks 110. In this case, as shown in FIG. Interlocking concavities and convexities may be formed in accordance with the concavo-convex shape of the neighboring covering concrete block 110 also in the side of (1).

12A, 12B, 13A, 13B, 14A, 14B, 15A and 15B show schematic perspective views of yet another embodiment of the corner covering block 1 according to the invention, respectively. 12A and 12B illustrate different directions of looking toward the upper corner covered blocks, respectively, and FIGS. 13A and 13B also illustrate different directions of facing the upper corner covered blocks, respectively, as shown in FIGS. 12A and 12B. The difference is the shape of the irregularities. Figures 14a and 14b are shown in different directions to look at the lower corner covered block, respectively, Figures 15a and 15b are also shown in different directions to view another lower corner covered block, respectively, FIGS. 14a and FIG. The difference from 14b is the shape of the unevenness.

As shown in the drawings, the through-hole 12 penetrates the plate portion 11 up and down as shown in the drawing so that the seawater can escape to the purpose of reducing the lift generated by the flow of seawater Is formed in the corner covering block, and a protrusion supporting portion 13 protruding in the surface direction of the mound 100 is formed on the bottom surface of the corner covering block in contact with the surface of the mound 100 and passes through the through hole 12. A gap may be formed between the lower surface of the corner covering block and the surface of the mound 100 so that the seawater can easily flow. The protruding support part 13 may be formed at an outer edge of the flat plate part 11.

1: corner covering block
11: reputation
100: mound
110: clad concrete block

Claims (5)

delete delete The coated stone 103 has a trapezoidal section having a trapezoidal cross section consisting of an inclined portion 101 having an inclined surface inclined upwardly from the tip portion 301 and a top end portion 102 formed horizontally at an upper end of the inclined portion 101. The upper edge portion where the inclined portion 101 and the top end portion 102 of the mound 100 that is built and built on the surface is covered with a lower edge portion where the inclined portion 101 and the tip portion 301 meet As corner covering blocks;
Two flat plate portions 11 having a thickness having a thickness are formed of one concrete member coupled to each other with a connection angle of more than 90 degrees and less than 180 degrees;
The flat plate portion 11 of the corner covering block is formed with a through hole 12 penetrating the flat plate portion 11 up and down so that seawater can pass therethrough;
Protruding support 13 which makes a gap between the lower surface of the corner covering block and the surface of the mound 100 so that the seawater passing through the through hole 12 flows to suppress the lift generated by the flow of seawater, It is formed to protrude in the surface direction of the mound (100) from the lower surface of the corner covering block in contact with the surface of the mound (100);
Concave-convex is formed on the side of the flat plate portion 11 forming the corner covering block;
At the upper edge or lower edge of the mound 100, two flat plates 11 are placed on the surface of the mound 100 of the inclined portion 101 and the top end 102, respectively, or The side surface of the coated concrete block 110 is installed on the surface of the mound 100 to cover the surface of the corner portion of the mound 100 to be placed on the surface of the mound 100 of the inclined portion 101 and the tip portion 301 And the unevenness formed on the side surface of the flat plate portion 11 are engaged with each other while being interviewed, and the mound 100 is continuously formed by one concrete member without discontinuous gaps at the upper edge portion or the lower edge portion of the mound 100. Surface) is covered and protected;
When installed in the lower corner of the mound 100, the center of gravity block (G) is a corner covering block, characterized in that it has a configuration that is located at the vertex of the lower edge.
The coated stone 103 has a trapezoidal section having a trapezoidal cross section consisting of an inclined portion 101 having an inclined surface inclined upwardly from the tip portion 301 and a top end portion 102 formed horizontally at an upper end of the inclined portion 101. As the mound (100) is built on the surface,
The inclined portion 101 is covered with a covering concrete block 110 is disposed on the surface;
In the upper corner portion where the inclined portion 101 and the tip end portion 102 meet or the lower edge portion where the inclined portion 101 and the tip portion 301 meet, two flat plate portions 11 each having a thickness are formed. A corner covering block consisting of one concrete member is disposed in which is connected to each other with a connecting angle of greater than 90 degrees and less than 180 degrees;
The flat plate portion 11 of the corner covering block is formed with a through hole 12 penetrating the flat plate portion 11 up and down so that seawater can pass therethrough;
Protruding support 13 which makes a gap between the lower surface of the corner covering block and the surface of the mound 100 so that the seawater passing through the through hole 12 flows to suppress the lift generated by the flow of seawater, It is formed to protrude in the surface direction of the mound (100) from the lower surface of the corner covering block in contact with the surface of the mound (100);
Concave-convex is formed on the side of the flat plate portion 11 forming the corner covering block;
The corner covering block has the flat portion 11 at the upper edge portion of the mound 100 on the surface of the inclined portion 101 and the top end portion 102, respectively, or the lower portion of the mound 100. In the corner portion is placed on the surface of the inclined portion 101 and the front end portion 301, the side of the coated concrete block 110 and the irregularities formed on the side of the flat plate portion 11 is installed in a state of engaging and interviewing, the mound The surface of the mound (100) is continuously covered and protected by one concrete member at the upper or lower edge of (100) without discontinuous gaps;
The mound of the mound 100, characterized in that the center of gravity (G) of the corner covering block is located at the vertex of the lower edge portion.
The coated stone 103 has a seabed to have a trapezoidal cross section consisting of an inclined portion 101 having an inclined surface inclined upwardly from the tip portion 301 and a top end portion 102 formed horizontally at an upper end of the inclined portion 101. As a mound construction method to build a mound (100) by laying on the surface,
A covering concrete block (110) is disposed on the surface of the inclined portion (101), the front end portion (301), and the top end portion (102) to cover the surface;
In the upper corner portion where the inclined portion 101 and the tip end portion 102 meet or the lower edge portion where the inclined portion 101 and the tip portion 301 meet, two flat plate portions 11 each having a thickness are formed. A corner covering block consisting of a concrete member having a coupling angle of greater than 90 degrees and less than 180 degrees and connected to each other;
The flat plate portion 11 of the corner covering block is formed with a through hole 12 penetrating the flat plate portion 11 up and down so that seawater can pass therethrough;
Protruding support 13 which makes a gap between the lower surface of the corner covering block and the surface of the mound 100 so that the seawater passing through the through hole 12 flows to suppress the lift generated by the flow of seawater, It is formed to protrude in the surface direction of the mound (100) from the lower surface of the corner covering block in contact with the surface of the mound (100);
Concave-convex is formed on the side of the flat plate portion 11 forming the corner covering block;
When installing the corner covering block, at the upper edge of the mound 100, the plate portion 11 is placed on the surface of the inclined portion 101 and the top end portion 102, respectively, or of the mound 100 In the lower corner portion is placed on the surface of the inclined portion 101 and the front end portion 301, the side of the coated concrete block 110 and the irregularities formed on the side of the flat plate portion 11 is installed in a state of engaging and interviewing, A surface of the mound (100) is continuously covered and protected by a concrete member at a top edge or a bottom edge of the mound (100) without discontinuous gaps;
The mound construction method, characterized in that the mound is built on the sea bottom so that the center of gravity (G) of the corner covering block is located at the vertex of the lower edge portion of the mound (100).

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