KR101475443B1 - Caisson block having concavity and convexity and construction method using the same - Google Patents

Abstract

A caisson block is provided at the top of the mound stone and has a plurality of hollows for filling stones therein. This caisson block has an upper end where upper and lower irregularities of the first pattern are formed and a lower end where upper and lower irregularities of a second pattern are engaged with the upper and lower irregularities of the first pattern to define the outer periphery of the caisson block, Two pairs of main walls parallel to each other; And a pair of main walls which are parallel to each other and are parallel to a pair of main walls parallel to each other, wherein the top and bottom concavities and convexities of the first and second patterns are formed, And a space wall.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a caisson block assembly having a concavo-

The present invention relates to a caisson block having irregularities and a construction method using the caisson block. More particularly, the present invention relates to a caisson block having unevenness, And a construction method using the same.

In general, the caisson block is an essential construction for the construction of harbors, and is being applied to important facilities of the harbor such as gravity seam, caisson breakwater. In the case of port facilities, there are a lot of situations to be considered compared to general land-based structures. In recent years, sea level has been rising due to global warming, and wave height is also increasing. If structures are not designed properly in response to such changes, the probability of leading to a major accident increases. Taking these facts into consideration, measures have been taken to increase the horizontal force by installing a caisson block in a row in the lateral direction on the mound. An example of this is disclosed in Korean Patent No. 10-1096094 (registered on December 13, 2011, abbreviated as Conventional Technology 1).

Referring to FIG. 1, in the prior art 1, a connecting groove 12, which is recessed from a surface along the vertical direction, is formed on both side surfaces of a caisson block and is disposed on a mound (not shown) or a caisson bottom (not shown) A plurality of caissons are arranged in a row in a row so that the connection grooves 12 are in contact with each other and a plurality of caissons are connected to each other so as to resist the horizontal external force such as a wave force.

However, even when the arrangement and binding method of the caisson block as in the prior art 1 is applied, there still exists a problem that it is difficult to sufficiently absorb the horizontal external force acting on the caisson block assembly due to insufficient frictional force with the mound stone.

Accordingly, there is an urgent need in the art to solve such a problem.

Korean Registered Patent No. 10-1096094 (Registered Date: December 13, 2011)

A problem to be solved by the present invention is to increase the coefficient of friction between a sandstone masonry and a caisson masonry or between a sandstone masonry and a caisson block so that the entire structure can co- Block and a construction method using the same.

According to an aspect of the present invention, there is provided a caisson block provided on an upper part of a mound stone and having a plurality of cavities for filling stones therein, the upper and lower unevenness of the first pattern being formed Two pairs of main walls having an upper end and a lower end in which upper and lower concave and convex portions of a second pattern engage with upper and lower concave and convex portions of the first pattern are formed and define an outer periphery of the caisson block and each pair is parallel to each other; And a pair of main walls which are parallel to each other and are parallel to a pair of main walls parallel to each other, wherein the top and bottom concavities and convexities of the first and second patterns are formed, And a space wall.

According to one embodiment, the caisson block is arranged in a space between the space wall and a pair of main walls parallel to the space wall, in a direction intersecting the space wall or in a direction parallel to the space wall Wherein at least some sub-walls of the sub-walls are formed with upper and lower concave-convex upper ends of the first pattern and lower and upper concave-convex portions of the second pattern, Respectively.

According to another aspect of the present invention there is provided a cement block assembly comprising caisson block units installed on top of a mound stone and having a plurality of cavities for filling stones therein, Wherein each of the caisson block units has a top end on which upper and lower concave and convex portions of a first pattern are formed and a lower end on which concave and convex portions of a second pattern are engaged with upper and lower concave and convex portions of the first pattern, Two pairs of main walls defining an enclosure of the unit, each pair being parallel to each other; And a pair of main walls which are parallel to each other and are parallel to a pair of main walls parallel to each other, wherein the top and bottom concavities and convexities of the first and second patterns are formed, Wherein the thickness of the space wall is such that the thickness of the two opposing main walls of two vertically adjacent caisson block units of the caisson block units and the thickness of the two adjacent caisson block units of the adjacent caisson block units, This is equal to the sum of the placement intervals of the units.

According to one embodiment, the hollows of the caisson block units disposed above and below one of the caisson block units are threaded to each other.

According to one embodiment, each of the caisson block units is arranged in a direction intersecting the space wall or parallel to the space wall, in each of the spaces between the space wall and a pair of main walls parallel to the space wall Wherein at least some subwalls of the subwalls are formed by a plurality of subwalls which are formed in one direction and partition the plurality of hollows, wherein at least some subwalls of the subwalls are formed with upper and lower irregularities of the first pattern, As shown in FIG.

According to another aspect of the present invention, caisson block units installed on the upper part of a mound stone and having a plurality of cavities filled with stones are assembled in a combination of horizontal direction and vertical direction, In the block assembly, the caisson block units each have an upper end where upper and lower concave and convex portions of the first pattern are formed and a lower end where a vertical concave and a convex of the second pattern is engaged with upper and lower concave and convex portions of the first pattern, A pair of main walls parallel to each other and a pair of main walls parallel to each other between a pair of main walls parallel to each other, the top and bottom of which the top and bottom concavities and convexities of the first pattern are formed, A middle block unit having a space wall having a lower end in which upper and lower irregularities of two patterns are formed; And a pair of main walls disposed on the upper portion of the mound stone and having a top and a bottom, respectively, wherein the top and bottom concavities and convexities of the first pattern are formed and a flat pattern is formed, A space wall formed parallel to a pair of main walls parallel to each other between a pair of main walls parallel to each other and having a top surface in which the top and bottom concavities and convexities of the first pattern are formed and a bottom surface in which the flat pattern is formed; And a bottom block unit provided with the bottom block unit.

According to one embodiment, the thickness of the space wall of the middle block unit and the thickness of the space wall of the bottom block unit are the same, and the thickness of each of the space walls is the same as the thickness of the two caisson blocks Is equal to the sum of the thickness of the two facing main walls of the units and the spacing distance of the adjacent two caisson block units.

According to one embodiment, the caisson block units further include a top block unit disposed at the top, wherein the top block unit has a top and bottom concave and convex portions of a flat pattern formed thereon, Wherein each pair is formed in parallel to two pairs of main walls parallel to each other and a pair of main walls parallel to each other between a pair of main walls parallel to each other, And a bottom wall having upper and lower concavities and convexities of the second pattern are formed, and the thickness of the space wall is the same as the space wall of the middle block unit.

According to one embodiment, the cap block further includes cap concrete placed on the top block unit.

According to one embodiment, each of the middle block unit, the bottom block unit, and the top block unit includes, in each of spaces between a space wall and a pair of main walls parallel to the space wall, a direction intersecting the space wall Or spaced apart from each other, and defining a plurality of hollows, wherein at least some of the subwalls of the middle block unit are arranged in a direction parallel to the upper and lower asperity- And at least some of the sub-walls of the sub-walls of the bottom block unit have upper and lower concave portions of the first pattern and a lower end of the flat pattern, , At least some sub-walls of the sub-walls of the top block unit have a top surface with the flat pattern formed thereon, Has the bottom up and down irregularities of the second pattern is formed.

According to one aspect of the present invention, there is provided a method of constructing a caisson block assembly including a caisson block unit having a concavo-convex pattern formed thereon, comprising the steps of: (a) improving marine ground on which a breakwater or a quay wall is to be installed, ; (b) installing the bottom block units horizontally side by side on the mound slab, wherein the gap between the bottom block units is determined by the difference between the space wall thickness of one bottom block unit and the two main sides of the adjacent two bottom block units A wall thickness difference between the walls; (c) installing middle block units on the bottom block units, wherein a space wall of one bottom block unit is located between main walls of two horizontally adjacent middle block units; (d) installing top block units on the middle block units so that a space wall of one middle block unit is positioned between main walls of two horizontally adjacent top block units; And (e) filling and solidifying the cavities of each of the caisson block units with stones.

According to one embodiment, the method further comprises, after step (e), placing cap concrete over the top block units.

The present invention provides a caisson block having unevenness and a construction method using the caisson block, so that all the structures including the caisson block can cooperate with each other to effectively resist external loads and increase the frictional force with the rock mass .

1 is a perspective view for explaining an example of a caisson block according to the prior art.
2 is a perspective view showing one caisson block (caisson block unit) having unevenness according to an embodiment of the present invention.
FIG. 3 is a perspective view showing an example of a caisson block assembly assembled in combination of vertical and horizontal directions using the caisson block unit of FIG. 2. FIG.
FIG. 4 is a perspective view showing a state where a cap concrete is laid on an upper part of the caisson block assembly of FIG. 3. FIG.
5 is a perspective view showing another example of a caisson block assembly assembled in combination of vertical and horizontal directions using the caisson block unit of FIG.
FIG. 6 is a perspective view showing a state where a cap concrete is laid on an upper part of the caisson block assembly of FIG. 5;
Figure 7 is a perspective view of a caisson block assembly in accordance with another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings and the associated description are provided to assist those of ordinary skill in the art to make and use the same, And should not be construed as limiting the scope of the rights.

2 is a perspective view showing one caisson block (caisson block unit) having unevenness according to an embodiment of the present invention.

2, a caisson block 100 is installed on top of a mound stone (also referred to herein as a "mound stone", not shown), and a plurality of caisson blocks 100 But not limited to this number). During the construction of the caisson block, stones (not shown) are introduced into the hollow 160. The hollow 160 may be filled with sand or other filler material instead of the sandstone, but at least from the lowermost portion to a certain height should be filled with sandstone to maximize the frictional force between the sandstone and masonry mound within the caisson block hollow 160 .

The caisson block 100 (represented herein as a caisson block unit) includes two pairs of main walls 110, 120, 130, 140 defining an enclosure . One pair (110 and 130, 120 and 140) of the two pairs of main walls are parallel to each other. Each of the two pairs of main walls 110, 120, 130 and 140 is formed with upper and lower irregularities 110b, 120b, and 130b of a second pattern, in which upper and lower irregularities 110a, 120a, And 140b are formed. Reference numerals 130b and 140b denote the lower ends of the walls 130 and 140, respectively, although they are not shown in the drawing. The upper and lower concave and convexes 110a, 120a, 130a and 140a of the first pattern and the upper and lower concave and convexes 110b, 120b, 130b and 140b of the second pattern are formed in corresponding patterns to mesh with each other. For example, when another caisson block unit is installed on the upper part of the caisson block unit 100 (for example, when assembling as shown in Fig. 3 or 5), an upper caisson block unit Is formed so as to engage with the pattern of the upper end of the lower caisson block unit 100. Although the illustrated pattern is formed in a continuous trapezoidal shape, it may be formed in various shapes such as a rectangular shape, a hemispherical shape, an elliptical shape, and the like. In this specification, the vertical irregularity means not vertical irregularities but horizontal irregularities.

Of the four main walls 110, 120, 130 and 140, the main wall 110 and the main wall 130 are parallel to each other, and the main wall 120 and the main wall 140 are formed parallel to each other. That is, the caisson block 100 includes two pairs of main walls 110, 130 (120, 140), each pair of which is parallel to each other. The caisson block 100 is formed parallel to a pair of main walls 110 and 130 parallel to each other between a pair of main walls 110 and 130 parallel to each other, And a space wall 150 having an upper end where the concave and convexes 110a, 120a, 130a and 140a are formed and a lower end where the upper and lower concave and convexes 110b, 120b, 130b and 140b of the second pattern are formed.

Further, the caisson block unit 100 is provided with sub walls (170, 180, which represent only two of the sub walls) 180 dividing the cavity into a compartment with four main walls 110, 120, 130, (Not shown). That is, the subwalls 170 and 180 are spaced apart from each other by a space between the space wall 150 and a pair of main walls 110 and 130 parallel to the space wall 150 And 130), in a direction intersecting the space wall 150 or in a direction parallel to the space wall 150, to define a plurality of hollows. At least some sub-walls of the sub-walls 170 and 180 may have a top formed by the top and bottom concave and convex portions of the first pattern and a bottom formed by the top and bottom concave and convex portions of the second pattern. The number of the sub-walls 170 and 180 can be adjusted as necessary in consideration of the size of the hollow or the size of the caisson block unit. Of course, all of the sub-walls may have an upper end where the upper and lower irregularities of the first pattern are formed and a lower end where the upper and lower irregularities of the second pattern are formed. The top and bottom concave and convex patterns of the first and second patterns serve as shear keys (anti-activity walls).

Such a caisson block unit 100 may be arranged vertically or horizontally on a masonry mound to form a caisson block assembly.

3 is a perspective view showing an example of a caisson block assembly assembled in a combination of a vertical direction (vertical direction) and a horizontal direction (left and right) using the caisson block unit of Fig. 2, Fig. 4 is a perspective view of a caisson block assembly In which the cap concrete is laid.

Referring to FIG. 3, a caisson block assembly is assembled in a combination of vertical and horizontal directions using caisson block units 100, 200, 300, 400, 500, 600, 700, 800, As described above, the caisson block assembly is installed on the upper part of the mound stone, and the hollow interior can be filled with stones to increase frictional force with the mound stone.

Since each of the caisson block units is manufactured in the same size and shape, the arrangement of the caisson block units 200 and 300 and the neighboring caisson block units around the caisson block units 600 and 700 will be described. The left and right spacing between the caisson block units is d, the thickness of the space wall is a, and the thickness of the main walls is represented by b and c, but b and c are the same. The reason why the caisson block units are spaced apart from each other by the interval of d is to have a buffer action between the caisson block units when the caisson block assembly against the external force resists against the age.

The relationship between a, b, c and d is preferably a = b + c + d. That is, the thickness a of the space wall is preferably equal to the sum of the spacing d between the caisson block units and the thicknesses b and c of the walls facing each other with the space wall interposed therebetween. In this case, the space wall of another caisson block unit is located on the upper part of the walls facing each other. As described above, the upper and lower concave and convexes of the first pattern at the upper end of one caisson block unit and the upper and lower concave and convexes of the second pattern at the lower end of the other caisson block unit located thereon are formed to intermesh with each other. Further, the cavities of the caisson block units disposed upside and downside of the caisson block units are assembled so as to communicate with each other. Therefore, when the hollow is filled with filler such as stonewall, it is possible to fill the hollow space between the upper and lower hollows with the filler material so that the operation can be facilitated.

A state in which cap concrete 1000a, 1000b, 1000c, 1000d is laid on the upper part of the caisson block assembly and shown in FIG. 4 is shown. The cap concrete (1000a, 1000b, 1000c, 1000d), unlike the caisson block unit, can be laid in situ after installing the caisson block assembly. Of course, land-based cap concrete can also be transported and bonded to the top of the caisson block assembly.

5 and 6, the caisson block units 100 ', 200', 300 ', 400', 500 ', 600', 700 ', 800' Another embodiment of the caisson block assembly will now be described. FIG. 5 is a perspective view of a caisson block assembly according to another embodiment of the present invention, and FIG. 6 illustrates a state in which cap concrete 1000a ', 1000b', 1000c ', and 1000d' This is a perspective view.

In this example, as compared with the example shown in Figs. 3 and 4, the arrangement in the horizontal direction is the same, but the arrangement in the vertical direction is different. That is, the main walls of the upper and lower neighboring caisson block units are arranged to coincide with each other. In this case, as compared with the previous embodiment, the force of resistance against the external force can be weak, but the force of gravity due to the installation of the caisson block assembly and the increase in frictional force between the sandstone and the moundstone filled in the hollows Can be applied to places where sufficient effect can be obtained.

A caisson block assembly according to another embodiment of the present invention will be described with reference to Fig. Referring to Fig. 7 together with Fig. 2, the caisson block assembly includes a middle block unit 100a and a bottom block unit 100b. The middle block unit 100a has an upper end where the upper and lower irregularities 100a2 of the first pattern are formed and a lower end where the upper and lower irregularities 100a1 of the second pattern are engaged with the upper and lower irregularities 100a2 of the first pattern, Two parallel pairs of main walls 110 and 130 parallel to each other, 120 and 140 parallel to each other, see FIG. 2), and a space wall 150 (see FIG. 2). The space wall 150 of the middle block unit 100a is parallel to a pair of main walls 110 and 130 parallel to each other between a pair of main walls 110 and 130 parallel to each other And has an upper end where upper and lower concave and convex portions of the first pattern are formed and a lower end where up and down concave and convex portions of the second pattern are formed.

Further, the middle block unit 100a is arranged so as to intersect the space wall 150 and the space wall 150 in the spaces between the pair of main walls 110 and 130 parallel to the space wall 150 and the space wall 150, respectively. Direction or in a direction parallel to the space wall 150, to define a plurality of hollows. Thus, eventually, the plurality of hollows are eventually partitioned by the main walls and the subwalls, or by the space walls and the subwalls. At least some of the sub-walls of the sub-walls of the middle block unit have upper and lower irregularities of the first pattern and lower ends of the second pattern. Thus, other block units can be arranged and engaged vertically or horizontally.

The bottom block unit 100b has two pairs of main walls each having a pair of upper and lower concave portions 100b2 of a first pattern and a lower end where a flat pattern is formed and parallel to each other, Wall 150 (see Figure 2). The space wall of the bottom block unit 100b is formed in parallel with a pair of main walls parallel to each other between a pair of main walls parallel to each other, And has a lower end where upper and lower irregularities are formed. Thus, the upper and lower irregularities of the first pattern are engaged with the upper and lower irregularities of the second pattern at the lower end of the upper middle middle block unit 100a.

In other words, the bottom block unit 100b is formed in the same manner as the middle block unit 100a except that the lower end is formed flat as a whole. Here, the flat pattern means that no vertical irregularities are formed. Since the bottom block unit 100b is disposed directly above the mound slab without the other caisson block units disposed under the bottom block unit 100b, the first pattern for assembling or the corresponding second pattern may not be formed, And the contact area can be more advantageously secured.

3 and 4, the thickness a of each of the space walls of the middle block unit 100a and the space walls of the bottom block unit 100b is equal to the thickness a in the horizontal direction (I.e., a = b + c + c) of the two main walls facing each other of the two adjacent caisson block units (i.e., d; see Fig. 3).

In this embodiment, the top block unit 100c is disposed at the top of the caisson block units. Accordingly, the top block unit 100c is positioned between the middle block unit 100a and the cap concrete. The top block unit 100c has an upper end where a flat pattern 100c2 is formed and a lower end where a second pattern 100a1 which is the same as the upper and lower concave and convex portions of the second pattern 100a1 of the middle block unit 100a is formed, Two pairs of main walls, each pair of which is parallel to each other, and a space wall. Similar to the bottom block unit 100b, the main walls and the space wall of the top block unit 100c are formed in the same manner as those of the main block unit 100a except that the top is flat. Since the cap concrete is placed on the upper side of the top block unit 100c, the upper and lower concave and convex patterns need not be formed on the upper side.

Further, similarly to the middle block unit, the top block unit 100c is arranged in the space between the pair of main walls parallel to the space wall and the space wall, in a direction intersecting the space wall or in a direction parallel to the space wall To define a plurality of hollows. At least some of the sub-walls of the sub-walls of the top block unit 100c have an upper end on which the flat pattern is formed and a lower end on which the upper and lower protrusions and recesses of the second pattern are formed. Of course, all of the sub-walls may be provided with a top having a flat pattern and a bottom having a top and bottom concavities and convexities of a second pattern.

As described above, when a caisson block unit having irregularities according to the present invention is used to install a breakwater or a caisson block assembly to be installed on the sea wall, it is possible to construct even a small equipment, The friction coefficient is increased in the relationship between the fillet and the mound slab, and the mutual resistance against the external force is exerted, so that the stability of the entire structure can be improved.

Hereinafter, a construction method for constructing a caisson block assembly by assembling a plurality of caisson block units having concavo-convex according to an embodiment of the present invention will be described with reference to the accompanying drawings (FIGS. 2, 3, 4, 7).

(B) arranging the bottom block units 100b (see FIG. 7) on the mound stone in a horizontal direction (see FIG. 7) (See FIG. 3) between the bottom wall unit 100b and the bottom wall unit 100b is set to be larger than the space wall thickness a of one bottom block unit and the two main walls (B + c), (c) installing middle block units (100a) on the bottom block units (100b), wherein the middle block units (100a) (D) installing top block units (100c) on the middle block units (100a), wherein two neighboring two horizontally adjacent block units (100b) Main of the top block units Further comprising: a space provided to a wall of the middle unit block (100a) is located between chedeul, and (e) comprises the steps Dodge filling the caisson block unit of each of the hollow riprap. The method may further include placing cap concrete on the top block units 100c after step (e).

The caisson block assembly according to the present invention and the construction method using the same can resist the external force together with the entire structure and increase the coefficient of friction between the caisson block assembly and the masonry mound to improve the stability of the entire structure .

100: Caisson block unit 110, 120, 130, 140: Main wall
110a: Upper and lower irregularities of the first pattern 110b: Upper and lower irregularities of the second pattern
150: Space wall 160: hollow
170, 180: Sub-wall
a: Space wall thickness b, c: Thickness of the main wall
d: spacing of the caisson block units

Claims (12)

delete delete A caisson block assembly mounted on top of a mound stone and having caisson block units having a plurality of hollows for filling stones therein are assembled in a horizontal and vertical combination, silver,
The upper end of the upper surface of which the upper and lower concave and convex portions of the first pattern are formed and the lower end of the second pattern of which the upper and lower concave and convexes of the second pattern are engaged with each other, Two parallel main walls; And
A pair of main walls which are parallel to each other and are parallel to a pair of main walls parallel to each other, and a lower end where upper and lower irregularities of the first pattern are formed and upper and lower irregularities of the second pattern are formed, A space wall,
The thickness of the space wall is equal to the sum of the thickness of the two facing main walls of the two adjacent caisson block units in the horizontal direction and the spacing distance of the adjacent two caisson block units, ≪ / RTI > 4. The caisson block assembly of claim 3, wherein the cavities of the upper and lower caisson block units of the caisson block units are hollowed each other. 4. The apparatus of claim 3, wherein each of the caisson block units comprises:
Wherein each of the spaces between the space wall and the pair of main walls parallel to the space wall is formed in a direction intersecting the space wall or in a direction parallel to the space wall, Further comprising walls,
Wherein at least some sub-walls of the sub-walls have upper and lower concave portions of the first pattern and lower ends of the second pattern. A caisson block assembly, installed on top of a mound stone, wherein caisson block units having a plurality of cavities filled with stones are assembled in a combination of horizontal and vertical directions,
The upper and lower protrusions and recesses of the first pattern are formed and the upper and lower protrusions and protrusions of the second pattern are engaged with the upper and lower protrusions and recesses of the first pattern, and each pair has two pairs of main walls parallel to each other, And a pair of upper and lower concave and convex portions of the second pattern are formed parallel to a pair of main walls parallel to each other between a pair of parallel main walls, A middle block unit having a space wall; And
A pair of main walls disposed on the upper portion of the mound stone and having a top and a bottom surface in which the top and bottom concavities and convexities of the first pattern are formed and a flat pattern is formed, And a space wall formed parallel to a pair of main walls parallel to each other between a pair of parallel main walls and having a top at which the top and bottom concavities and convexities of the first pattern are formed and a bottom at which the flat pattern is formed A bottom block unit,
Wherein the thickness of each of the space walls of the middle block unit and the bottom block unit is the same and the thickness of each of the space walls is equal to or greater than the thickness of each of the two facing vertically adjacent two caisson block units of the caisson block units Is equal to the sum of the thickness of the main walls and the spacing distance of the two neighboring caisson block units. delete 7. The apparatus of claim 6, wherein the caisson block units further comprise a top block unit disposed at the top,
Wherein the top block unit has two pairs of main walls parallel to each other, each pair having a top surface on which a flat pattern is formed and a bottom surface on which top and bottom concavities and convexities of the second pattern are formed, And a space wall formed parallel to a pair of main walls parallel to each other between the pair of main walls and having a top at which the flat pattern is formed and a bottom at which the top and bottom concavities and convexities of the second pattern are formed, Wherein the wall thickness is the same as the space wall of the middle block unit. The caisson block assembly of claim 8, further comprising cap concrete disposed on top of the tower block unit. 9. The apparatus of claim 8, wherein each of the middle block unit, the bottom block unit,
Further comprising subwalls in each of the spaces between the pair of main walls parallel to the space wall and the space wall, which are formed in a direction intersecting the space wall or in a direction parallel to the space wall and defining a plurality of hollows In addition,
At least some of the sub-walls of the sub-walls of the middle block unit have upper and lower concave portions of the first pattern and lower ends of the second pattern,
At least some of the sub-walls of the sub-walls of the bottom block unit have upper and lower irregularities formed on the first pattern and a lower end formed with the flat pattern,
At least some sub-walls of the sub-walls of the top block unit have a top with the flat pattern formed thereon and a bottom end with the top and bottom concavities and convexities of the second pattern. A construction method for constructing using the caisson block assembly according to claim 8,
(a) improving the marine ground on which breakwaters or quays are to be installed and installing mound rocks;
(b) installing the bottom block units horizontally side by side on the mound slab, wherein the gap between the bottom block units is determined by the difference between the space wall thickness of one bottom block unit and the two main sides of the adjacent two bottom block units A wall thickness difference between the walls;
(c) installing middle block units on the bottom block units, wherein a space wall of one bottom block unit is located between main walls of two horizontally adjacent middle block units;
(d) installing top block units on the middle block units so that a space wall of one middle block unit is positioned between main walls of two horizontally adjacent top block units; And
(e) filling and solidifying the hollows of each of said caisson block units with sandstone. 12. The method of claim 11, further comprising, after step (e), placing cap concrete over the top block units.

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