JPH11315522A - Shore structural body, artificial shore and formation method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technology for quickly constructing an artificial shore having the landscape of a natural shore, including necessary conditions as a living/growing space for various kinds of inshore livings and functioning as multipurpose spaces such as education in good taste, living thing study, hydrophilicity, etc., by using a structural body having strength against external force as well as the harmonization with the peripheral landscape. SOLUTION: An artificial shore is provided with a tide pool having water-tight construction capable of storing water and complicated unevennesses such as grooves, holes, cracks, recesses, etc., suitable for living and growing of inshore livings on the surface thereof. This pool is so placed in a tidal zone that it is submerged at high tide and that it is exposed at low tide. By the constitution, the unevennesses and water storage efficiency formed on the surface of the pool and submergence and exposure caused by the ebb and flow of the tide are repeated, and a living and growing space for various kinds of inshore livings can be created. Since the tide pool is constituted of various types of modules 50(50a-50e) constituting bottom and edge section and freely connected in a water-tight state to make it possible to form complicated shapes, the tide pool having various size and shapes can be freely designed in accordance with the object of improving the artificial shore.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an artificial rocky shore and a method for forming the same, and also relates to an artificial rocky shore structure and a module for forming the rocky shore structure.

[0002]

2. Description of the Related Art Isoba is a space between ecosystems of the sea and land, where the two are continuous and living organisms can freely come and go. Isoba is in a complex physical environment of various shapes, and inhabits many organisms such as seaweeds such as elkfish, attached animals such as barnacles, and migratory animals such as crabs, creating diverse ecosystems. I have. In particular, in the rocky shore, part of the seawater arriving at high tide may be left behind at low tide and form a tide pool (tidal pool), but this tide pool has water storage even at low tide, Isoba, which has a tide pool, has a richer biota because fish and large seaweeds that live in seawater also inhabit and grow.

[0003] As described above, the rocky field, which forms the basis of various ecosystems, is an important place, not to mention for rocky creatures. It is a useful place. In particular, it is important for children as a place for emotional education and biological learning that provides suitable teaching materials for biology, and also as a hydrophilic space.

However, in recent years, the development of coastlines, including the construction of public facilities such as power plants and disaster prevention facilities, has been progressing, and natural shores have been reduced due to coastal structures and seawalls.
In recent years, examples of artificial shores have been increasing as a substitute for natural shores, which are decreasing.

[0005]

Heretofore, artificial rocks, natural stones, pebbles, and the like have been laid side by side behind a breakwater or a part of a jetty to create an artificial beach. However, conventional artificial shores are not configured to form a tide pool, but are often stone-like deserts that are desolate when the tide rises.
The scenery and hydrophilicity were not satisfactory.

[0006] In addition, a cast-in-place concrete pool is also installed, but it is difficult to form a diverse ecosystem like a natural tide pool because the inner surface is smooth like a swimming pool. there were.

[0007] As described above, the conventional artificial shore was not considered as a habitat for shore organisms, but rather had a monotonous spatial configuration.
There are the following circumstances. Considering the habitat of marine life,
Creating an artificial shore that is closer to natural conditions would have to be complicated, but if such a complex construction were to be performed in an unstable rocky shore, the construction itself would be very large. There is a problem that not only is the scale increased, the construction period is prolonged, but also the construction cost is increased. More specifically, Isoba is a very unstable place where waves constantly rush and sink in the seawater depending on the time, so if you perform complex reclamation work in such a place First, the entire area must be enclosed with steel sheet piles, etc., to eliminate waves and seawater before construction.

[0008] Under such circumstances, artificial shores that have been conventionally constructed have been limited to those that can be constructed by simple construction as described above.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and is an isoba structure capable of artificially forming various ecosystems in the isoba, and such an isoba structure. An object of the present invention is to provide a module capable of easily forming a structure, an artificial shore using such an shore structure, and a method for forming the same.

[0010]

In order to achieve the above-mentioned object, a module for forming an isoba structure according to the present invention is formed in a substantially disc shape, and has a surface with irregularities of several mm to several cm. Alternatively, it is characterized by having cracks and / or protrusions on the order of several cm to several tens of cm.
Note that the back surface of the module is preferably substantially flat because of the necessity of construction. In addition, this module usually uses a precast module, but can be handmade as needed.

Further, the isoba structure according to the present invention is characterized in that the modules are connected and assembled. In this case, the module used to form the rock structure is made of concrete that transcribes or replicates the surface shape of the rock that actually exists in the natural rock field,
From the viewpoints of structural strength in construction, stability against waves, and workability, it is preferable that they have appropriate specifications.

[0012] Further, it is preferable that the isoba structure has a water-tight structure by interposing a sealing material between the modules when connecting and forming the modules.
Further, it is preferable that the beach structure is formed so as to have a bottom portion having a predetermined shape and an edge portion raised on an outer edge thereof. In other words, the rock formation structure is formed into a pool-like shape having a bottom and an edge, and a watertight structure is formed by using a sealing material so that seawater can be stored inside, Thereby, an environment suitable for the inhabitation and growth of marine organisms such as aquatic animals and seaweeds that always require seawater can be created.

[0013] Further, it is preferable that the rocky shore structure is formed so as to form a tide pool having a depth of several cm to 1 m and a diameter of several cm to several tens m in accordance with the ebb and flow of the tide. This makes it possible to create an artificial shore exhibiting a rich biota, similar to a natural shore where a tide pool is formed.

If sand, stones and rocks are appropriately placed on the bottom surface of the isoba structure, the growth of marine organisms closer to a more natural isoba can be achieved.
Habitat space can be realized.

In the artificial rock according to the present invention, one or more of the rocky structures are provided between a high tide line and a low tide line on the shoreline (intertidal zone).
And at least one of rock, artificial rock, quarry stone, gravel, and sand is provided around it. In addition, as a rocky structure used for this artificial rock, if a watertight structure having a bottom having a predetermined shape and an edge raised on the outer edge thereof is adopted, the tide will rise and fall. A tide pool can be formed in the artificial rock by the action. In other words, if the isoba structure is installed in the intertidal zone, the isoba structure will be immersed in seawater at high tide, while it will be exposed on the sea surface at low tide. If it is shaped like a pool with a bottom and edges and is watertight, seawater arriving at high tide accumulates inside it and is an important condition as a habitat and growth environment for rocky organisms Is formed.

The artificial rock according to the present invention is preferably provided with irregularities, cracks, or projections made of grooves, holes, depressions, and the like suitable for habitat and growth of rocky organisms on the surface of the rocky field structure. Accordingly, a structure having more abundant conditions necessary for the inhabitation and growth of rocky organisms such as migratory animals, sessile animals, and seaweeds can be obtained.

It is preferable that a plurality of the isoba structures are installed in the artificial shore, and if the isoba structures capable of forming a tide pool are installed, the water surface (the isoba structure) It is preferable to arrange the rock formations so that the heights of the tide pools formed by the tide pools are different from each other. This makes it possible to make the ratio of the time of immersion in the sea to the time of exposure in each cycle of the day of the ebb and flow of the tide different for each rocky structure, which is more diverse for rocky creatures. Habitat and growth environment can be provided.

The artificial shore according to the present invention having such features may be installed as a new rocky shore on a natural shore, behind a breakwater, a part of a jetty, or in front of a reclaimed seawall. . And by securing structural strength and stability against waves, in various places,
It is possible to create a new space as a landscape, ecological, and hydrophilic space.

The artificial surfacing method according to the present invention is characterized in that a plurality of types of modules are combined, and the modules are connected with a sealing material interposed therebetween, thereby forming a watertight structure and rising on a bottom having an arbitrary shape and an outer peripheral edge thereof. Having a rim,
Assemble an isoba structure that can store seawater inside, and install the isoba structure so that its water surface (the surface of seawater when the maximum allowable seawater is stored inside) is located in the intertidal zone. In this case, it is preferable that stones or rocks are appropriately installed around the rocky beach structure and the landscape is taken into consideration.

When an artificial rock is created by this method, a master mold having a surface shape similar to that of the rock in the natural rock is prepared in advance by transferring or copying the surface shape of the rock existing in the natural rock. It is preferable to duplicate this and prepare and prepare a plurality of types of modules to be used on site.

Here, "transfer" means to transfer the surface shape of a rock or a bedrock existing in a natural rocky shore by using a transfer material such as silicon rubber. First, make multiple female molds,
From the female molds, rock pieces having the same surface shape as the rock or the bedrock are manufactured, the rock pieces are combined, and joints are buried to manufacture a module master mold. From this master mold, a secondary female mold is made again with a transfer material, and a module having the same shape as that of the master mold is manufactured.

The copying is not a transfer using a transfer material but a method in which a master mold is manufactured by imitating the surface shape of a rock or a bedrock at a natural rocky shore by a hand carving method or the like in which mortar is sprayed and formed. Also, a master mold can be made by combining a rock piece produced by transfer and a method by replication.

As described above, according to the method for creating an artificial rock according to the present invention, not all the work is performed at the site where the artificial rock is to be formed, but a module manufactured in advance at a factory or a local yard. By assembling, it is possible to easily create an isoba structure with a complex surface shape suitable for the inhabitation and growth of shore organisms, so it is necessary to eliminate seawater by surrounding the entire area with steel sheet pile etc. at the site However, as a result, the construction period can be shortened and the construction cost can be reduced.

[0024]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view showing an embodiment of an rocky field structure, an artificial rocky shore and a method for constructing the rocky shore. FIG. 1 is a perspective view showing an external appearance of an embodiment of an artificial shore 1 formed at the water's edge. This artificial rock 1 has five rock structures 2 (2a, 2b, 2c, 2d, 2).
e) are installed, and a number of covering stones 23 (natural stones, split stones, etc.) are installed around each rock formation.

FIG. 2 is a sectional view of the artificial shore 1 taken along the line AA in FIG. In this figure, the dashed line 4 indicates the high tide line (seawater level at high tide / HWL), and the dashed line 5 indicates the low tide line (seawater level at low tide / LWW). L.)
Is shown. Isoba structures 2a, 2b, and 2c installed on the artificial shore 1 are each formed in a basin shape by a bottom portion 21 and an edge portion 22 raised on an outer peripheral edge thereof, and have a watertight structure. Has become. Each of the rocky structures 2a, 2b, and 2c is prepared at various depths in consideration of the ecology of living organisms and human safety. In the present embodiment, the rock structures 2a, 2b, 2c are made of concrete, but any other material, such as FRP (reinforced plastic), can be used as long as it can have a watertight structure. It may be molded by.

As described above, each of the rock formations 2a, 2b, 2c is formed in a basin shape and has a watertight structure, so that seawater can be stored inside. The two-dot chain line 3a in FIG. 2 indicates the surface of the seawater (hereinafter simply referred to as “water surface”) when the maximum allowable seawater is stored in the beach structure 2a, and the dotted line 3b indicates the surface of the beach structure 2b. The water surface, the dotted line 3c, is the water surface of the isoba structure 2c. In the present embodiment, the beach structures 2a, 2b, 2
c is installed such that the water surfaces 3a, 3b, 3c are located between the high tide line 4 and the low tide line 5, that is, in the intertidal zone 8.

Therefore, the shore structure 2a, 2b, 2c
Both will sink into the sea at high tide, but will be exposed above sea level at low tide. When exposed, the seawater covered at the time of high tide accumulates inside each rocky shore structure 2 to form a tide pool. Therefore, similar to a natural tide pool, it is possible to provide a habitat / growth environment suitable for rocky creatures. In addition, a flow path can be formed between each rock formation 2.

The rock structures 2a, 2b, 2c are arranged such that their water surfaces 3a, 3b, 3c have different heights. Therefore, in the one-day cycle of the ebb and flow of the tide, the ratio of the time of immersion in the sea and the time of exposure can be different for each rock formation, which makes it more diverse -It can provide a growth environment.

Although not shown in FIG. 2, the isoba structures 2d and 2e shown in FIG. 1 also have the isoba structures 2a, 2b and 2b.
Similarly to 2c, the bottom and the edge raised on the outer peripheral edge are formed in a basin-like shape, and have a water-tight structure. The water surface is in the intertidal zone, and each water surface is They are installed so that they are at different heights from each other, and can form a more diverse habitat and growth environment as a whole.

FIG. 3 is a view showing the isobar structure 2 shown in FIG.
It is an enlarged view of a, and as is clear from this figure, irregularities, cracks, or projections 15 of various sizes and shapes are provided on the surface of the beach structure 2a. For example, the bottom portion 21 is formed with a groove 18 or a wedge-shaped groove 19 through which small creatures can enter.
The overhang 35 is formed by projecting a part thereof to the inside of the beach structure 2a, and a dent 16, a crack 17, a pothole 20 and the like are formed in the. These serve as attachment sites for attached organisms such as turtles and anemones, and are suitable shelters and spawning grounds for mobile organisms such as crabs, snails, and sea urchins.

As the sediment, those having various particle diameters such as sand 25 and gravel 26 are provided in consideration of the species that inhabit and grow. Also, vegetative creeping animals, which are the harmful organisms of seaweeds, are difficult to move if they have a roughness of about 2 to 3 mm. By arranging it, entry of a creeping animal can be prevented.

The covering stone 23 (see FIG. 1 and FIG. 2) installed around the rocky shore structure 2 should have a south-facing slope in consideration of seaweeds when the part is underwater even at low tide. Is desirable. In addition, when a portion that dries at the time of low tide forms a shade due to overhang or the like, the seaweed can be formed without drying out. In addition, on the surface of the covering stone 23, as in the case of the rocky field structure 2, irregularities such as grooves, holes, and depressions that match the size of the target organism's body so as to be a place for a mobile animal or a hidden place. To make a crack or to improve the water retention in the dry area, 2-3mm
It is preferable to provide a degree of roughness.

As described above, the spatial structure of the rocky field structure and the surrounding rocky rocks is complicated, and various micro-topography is arranged to increase the number of species that inhabit and grow on the artificial rocky shore, and to diversify the ecosystem. Can be formed.

FIG. 4 shows a walkway 27 around the rocky beach structure 2.
FIG. 10 is an explanatory view of another embodiment of the present invention in which a safety fence 28 is provided. Isoba, which has a tide pool, is rich in biota and forms a diverse ecosystem. Therefore, it is a great point for observing rocky creatures. However, rocky shores generally have a rugged and complex shape, making it difficult to walk, and the surface of rocks on which algae are attached is slippery and dangerous.
Therefore, in the present embodiment, the walking path 27
Is provided so that a person can safely access the rocky field structure 2 in the artificial rocky shore 1 from outside.
For this reason, it is preferable that the walking path 27 is formed by laying a stone having the same size and shape as the other covering stones 23 so as to be one step higher than the part where the other covering stones 23 are laid. A large stone with a flat top may be laid like a stepping stone.

In this embodiment, the isoba structure 2
Since the safety fence 28 is provided around the vehicle, accidents such as a child falling into the rocky structure 2 can be avoided as much as possible.

Next, a description will be given of an embodiment of a method for forming an artificial rock according to the present invention. Before the on-site construction work, a module that can easily assemble an isoba structure having a watertight structure capable of storing seawater inside is manufactured by the following method. First, a master mold, which is a prototype of a module, is manufactured by transferring the surface shape of the rock at the natural rocky shore using a transfer material.

More specifically, as shown in FIG. 5, irregularities, cracks, or protrusions such as grooves 63, wedge-shaped grooves 62, and holes 65 suitable for the inhabitation of rocky creatures in a natural rocky shore. A release agent is applied to the surface of a rock (or bedrock) 61 having the following formula, and then a surface transfer material 64 is applied. Then, after curing for a predetermined time, it is released from the mold, and as shown in FIG. 6, a female mold 66 in which various surface shapes of natural rock are copied.
Are prepared. Note that it is preferable to use an elastic material such as silicon rubber as the surface transfer material 64 so that a material that has penetrated deep into a groove or a crack can be easily removed even after curing.

Next, concrete is poured into the female molds 66, and a plurality of types of thin plate-shaped rock pieces and L-shaped rock pieces having the same surface shape as the natural rock rock are produced. I do. Furthermore, these rock pieces 67 (laminate rock pieces 6)
7a, the L-shaped rock pieces 67b) are appropriately combined as shown in FIG. 7 and joints 68 are joined to form a concrete having a surface shape similar to that of the natural rock in the rock, as shown in FIG. Master mold 70 (70a to 70
e) is produced.

In the present embodiment, the master mold was manufactured by transferring the surface shape of the rock of the natural rock by using a transfer material. Alternatively, the master mold may be manufactured by copying the surface shape of the rock at the natural rocky shore by a hand carving method or the like. When the master mold is manufactured by the hand carving method, as shown in FIG.
Reinforcing bars 81 are provided, a rough external shape of the master mold 70 is determined, a base wire mesh 82 is attached, and a mortar 8 is attached thereto.
3 is sprayed, and the surface shape of the rock in the natural rocky beach is reproduced and modeled.

Next, a surface transfer material such as silicon rubber is applied again on the entire surface of the master mold 70 manufactured as described above, cured, and then released from the mold to produce a secondary female mold.
Then, a module as a duplicate of the master mold 70 is manufactured based on the secondary female mold.

FIG. 10 is an explanatory view of a procedure for manufacturing a module using the secondary female mold 72. The procedure for manufacturing the module will be briefly described with reference to FIG. Reverse the top and bottom of the next female mold 72,
This is installed in a steel frame 76, and a steel mold 73 of a regular shape to be a base of each module is placed above the steel frame 76, and this is used as an entire mold 71 for module molding.
By filling the gap between the steel frame 76 and the secondary female mold 72 with the filler 75, when the concrete 77 is put into the mold frame 71, the deformation of the secondary female mold 72 due to the weight of the concrete 77 is avoided. can do. And the mold 71
After arranging the reinforcing steel bars 78 and the suspension bars 79 therein, concrete 77 is charged, and after a predetermined curing, the mold is released.

According to such a procedure, as shown in FIG.
0b, modules 50c, 5 with straight edges 22
0d, and a module 50e having various shapes, such as a module 50e having no edge, for forming a bottom portion of the beach structure.
To produce In each module 50, it is preferable to unify the width of the joint surface 51 with another module, but it is preferable to manufacture various heights of the edge 22. . The modules 50 manufactured in this way can be combined in any combination, and can be formed in various depths, sizes, and shapes.

For example, a module 50e having no edge
Are connected to form a bottom portion having a predetermined size, and modules 50a, 50b, 5 having an edge portion 22 on the outer periphery thereof.
By arranging and connecting 0c and 50d, respectively, the beach structure 2 as shown in FIG. 12 can be formed. Further, by arranging the module 50a and the like having the edge portion 22 not only on the outer periphery but also on the inner side of the bottom portion, it is also possible to form the beach structure 2 having the island portion 40 as shown in FIG. , As shown in FIG.
A part (depth) 4 deeper than the surroundings in the Isoba structure 2
It is also possible to provide 1.

By using the above-described mold 71, any number of modules 50 having the same shape can be manufactured, and by changing the combination of the modules 50, an isoba structure having various water depths, sizes and shapes can be formed. Since it can be formed, even when constructing a plurality of rock formations in one artificial rock, a step of going to a natural rock separation and collecting the female mold 66 and a master mold 70 based on these steps are performed. One forming step is sufficient. Furthermore, in the present embodiment, as described above, the master mold 70 is formed once from the female mold 66, and the secondary mold 72 is manufactured using the master mold 70 as a master mold. Even if 72 has deteriorated, it can be easily copied based on the master mold 70.

The on-site construction work is performed as follows using the module 50 manufactured in advance by the method described above. First, as shown in FIG. 2, discarded stones 3 are placed on the ground 7 where the artificial shore 1 is to be formed.
0 is input to form the mound 29. The top of the mound 29 is appropriately thinned and leveled, and the water surface 3 is set in the intertidal zone 8
Is installed so that it may be located in. Then, covering stones 23 (and rocks, pseudo rocks, and the like) are appropriately arranged around the rock formations 2 to complete the formation.

Here, the isoba structure 2 is appropriately combined with the module 50 shown in FIG. 11, and as shown in FIG. 15, the connecting plate 33 is provided between the modules with a sealing material 31 such as waterproof rubber interposed therebetween. Is passed to each module and bolted, and the joints are buried thereon with backfilled mortar 34, and are formed so as to be continuous with the surface of the adjacent module. Moreover, it can be formed with sufficient strength.

As described above, according to the method for creating an artificial shore according to the present embodiment, when constructing the rocky shore structure, not all the work is performed on the site where the artificial shore is to be created, but a factory or a site yard or the like is used in advance. By assembling the modules that have been manufactured, it is possible to easily create a watertight Isoba structure having the same surface shape as rocks and the like that actually exist in Isoba. As a result, the construction period is shortened and construction costs are reduced. Can be reduced.

[0048]

According to the artificial shore of the present invention, a tide pool can be formed in the artificial shore by the ebb and flow of the tide. Since unevenness, cracks, and projections suitable for the habitat of the sea are provided, it is possible to recreate the habitat and growth environment of various marine species.

Further, by arranging a plurality of beach structures in the artificial shore so that each water surface has a different altitude, the time of immersion in the sea and the exposure during the one-day cycle of ebb and flow of the tide. The ratio of the time spent is different for each rocky structure, and a more diverse habitat for rocky creatures can be provided.

In addition, according to the method for creating an artificial shore of the present invention, not all the work is performed on the site where the artificial shore is created, but the module manufactured in advance at the factory is assembled on the site, so that Since a watertight rocky field structure having a complicated surface shape suitable for the inhabitation of living things can be easily formed, the construction period can be shortened and the construction cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an appearance of an artificial shore 1 according to the present invention formed on a coast.

FIG. 2 is a sectional view of the artificial shore 1 shown in FIG.

FIG. 3 is an enlarged view of the beach structure 2a shown in FIG. 2;

FIG. 4 is an explanatory view of another embodiment of the artificial rock according to the present invention.

FIG. 5 is an explanatory view of a method of manufacturing the female mold 66 in the method of forming an artificial rock according to the present invention.

FIG. 6 is a perspective view showing an example of a female mold 66 in the method for creating an artificial rock according to the present invention. View.

FIG. 7 is an explanatory view showing an example of a method for producing a master mold 70 in the method for creating an artificial rock according to the present invention.

FIG. 8 is a perspective view showing an example of a master mold 70 in the method for creating an artificial rock according to the present invention.

FIG. 9 is an explanatory view of another example of the method of manufacturing the master mold 70 in the method of forming an artificial rock according to the present invention.

FIG. 10 is an explanatory view of a procedure for manufacturing a module in the method for creating an artificial rock according to the present invention.

FIG. 11 is a view showing an example of a module 50 in the artificial rock creation method according to the present invention.

FIG. 12 is a view showing an example of a rocky field structure 2 in the artificial rock formation method according to the present invention.

FIG. 13 is a view showing another example of the rocky field structure 2 in the artificial rock formation method according to the present invention.

FIG. 14 is a view showing another example of the rocky field structure 2 in the artificial rock formation method according to the present invention.

FIG. 15 is a partially cutaway perspective view showing an example of a connection structure of the modules 50 in the artificial rock formation method according to the present invention.

[Explanation of symbols]

 1: Artificial shore, 2: Isoba structure, 3: Water surface, 4: High tide line, 5: Low tide line, 7: Ground, 8: Intertidal zone, 16: Depression, 17: Crack, 18: Groove, 19: Wedge Shape groove, 20: pothole, 21: bottom, 22: edge, 23: covering stone, 25: sand, 26: gravel, 27: walking path, 28: safety fence, 29: mound, 30: discard stone, 31: seal Material: 33: connecting plate, 34: mortar, 35: overhang, 40: island, 41: depth, 50: module, 51: joint surface, 61: rock (or rock), 62: wedge-shaped groove, 63: Groove, 64: Surface transfer material, 65: Hole, 66: Female, 67: Rock piece, 68: Joint, 70: Master mold, 71: Mold, 72: Secondary female, 73: Steel mold, 74: coating material, 75: filler, 76: steel frame, 77: concrete REIT, 78: reinforcing rebar, 79: Tsusuji

Continuing from the front page (72) Inventor Kiichi Hirose 2-7 Higashi-Nakkanuki-cho, Tsuchiura-shi, Ibaraki Pref. Inside the Tetra Environmental Technology Center (72) Inventor Toru 2-7 Higashi-Nakkanuki-cho, Tsuchiura-City, Ibaraki Pref. Inside the technical center

Claims (8)

[Claims] 1. A substantially disk-shaped, habitat / growing space for rocky creatures on one surface of which has irregularities and / or cracks on the order of several mm to several cm and / or projections on the order of several cm to several tens of cm. A module having: 2. An isoba structure constructed by connecting and assembling the modules according to claim 1. 3. The rock structure according to claim 2, wherein the module is made of concrete in which the surface shape of the rock of the natural rock is transferred or copied. 4. A watertight pool shape having a predetermined bottom shape and an edge raised on an outer edge thereof by connecting the modules with a sealing material interposed therebetween. 4. The isoba structure according to 2 or 3. 5. The rock according to claim 2, wherein a tide pool having a depth of several cm to 1 m and a diameter of several cm to several tens of meters is formed according to the ebb and flow of the tide. Field structure. 6. The beach according to any one of claims 2 to 5, wherein sand, stones and rocks are provided on the bottom surface of the beach structure to form a habitat and a growth space for beach creatures. Structure. 7. One or more of the shore structures are installed between a high tide line and a low tide line (an intertidal zone) on a shoreline, and rocks,
A hydrophilic artificial shore where at least one kind of artificial rock, split stone, gravel, and sand is installed to realize the habitat and growth space of marine life. 8. A pool having a watertight structure having a bottom portion having an arbitrary shape and an edge portion raised on an outer peripheral edge thereof by combining a plurality of types of modules and connecting the modules with a sealing material interposed therebetween. A method for constructing an artificial shore, comprising assembling an shore structure and installing the structure such that the water surface is located in an intertidal zone.