KR101681578B1 - Green Tetrapod and method thereof - Google Patents

Abstract

The present invention relates to a tetrapod having a fishing bank function, comprising: a tetrapod mounted on a breakwater; and a groove formed outside the tetrapod.

Description

Green Tetrapod and method thereof "

The present invention relates to eco-friendly tetrapod structures used for harbor, breakwater, latent, and sea-son composition.

In the conventional invention, FIG. 8 shows a case where a detrapped (1), a quadrangular, a quadrangular, and an artificial quadrants, which are placed on a breakwatersheet, are easily mixed with aquatic organisms to form environment- (2), which are harvested from eco-friendly plants, are sliced into appropriate sizes, and then mixed with concrete or soil to mix them as a whole. (1) which induces the induction of aquatic biosynthesis by using a solidified, processed and immobilized product.

The use of tetrapod (1), however, requires a very high strength to protect the revetment and does not migrate from rough waves, so that very high strength concrete is required among concrete, so that the proper size of soil or straw or branches forms tetrapods I can not.

In FIG. 9, the conventional art is shown in FIG. 9 as an environmentally friendly artificial fish super functional tetrapod devoid of the role of the conventional tetrapod which protects the facility by reducing the wave to the breakwater, and when the tetrapod is submerged in the water below the water surface, (2) through the inner space hole (2) of the tetrapod to allow the benthic organisms, such as fish fry, to grow and develop as a shelter in the inner space of the tetrapod. In addition, The space is formed and structured inside the tetrapod so as to give the function of providing a stable environment by extinguishing the wave and flow velocity by changing the direction of the wave and the flow rate when the wave is influenced Some fish have the function of fish, but only fish fish and benthic creatures Placing the internal voids of the pod it is difficult to actually apply to that described to provide for teteurapodeu to sea water reduced the inherent characteristics of teteurapodeu to reduce the weight of the teteurapodeu when the waves hit.

Therefore, it has been required to prevent the degradation of the reef by taking advantage of the function of the reef while maintaining the inherent characteristics of the tetrapod.

1. Korea Intellectual Property Office Patent No.: 10-2008-0095820 (October 29, 2008) 2. Korea Intellectual Property Office Patents Publication No. 10-2007-0040360 (April 16, 2007)

There are many maritime activities in Korea because the three sides are the sea. Marine structures such as harbors, breakwaters, and potentials are also increasing in size and number. The offshore structure destroys the habitat of marine animals and plants, which is the main cause of damage to the marine environment. Tetrapod is the most frequently used marine structure. The main role of tetrapods is to prevent waves. The harbors and beaches where the tetrapods have been built can not grow algae even after a long period of time and can not serve as shelter for shellfish or fish. As a result, a certain area around the periphery of an offshore structure has become deteriorated for a long period of time.

Over time, coastal erosion and sand loss problems are becoming serious due to the development of marine lanterns. In particular, the underwater potential is installed for the restoration of the sandy beach and the hydrophilic composition project. In general, underwater potential uses tetrapod to reduce the intensity of waves. However, submergence creates another problem of destroying marine flora and fauna in the water.

The coast of Korea is at a serious level with the phenomenon of sea desertification. The ruggedness of the useless living organisms is causing serious economic damage to the marine fishermen and fishermen. Marine environmental damage is more severe.

The surface of conventional tetrapod is slippery, so that a person may fall down. Tourists, fishermen, fishers, and other accidents are increasing in frequency. Once you fall, it will be very difficult for you to escape by your own self, which leads to personnel accidents.

Therefore, in order to create eco-friendly harbors, breakwaters, latitudes, and hillsides, the most frequently used tetrapods must be environmentally friendly tetrapods. This eco-friendly tetrapod should have stability to withstand strong waves, be easy to install irregularly regardless of the undersea topography, be easy to install seaweed rope, and provide shellfish and fish hides And should have excellent characteristics such as economy and workability. There should be a groove on the surface so that it does not slip, and it should be easy to escape even if a person falls.

It is necessary to combine it with tetrapods. However, the technical field of tetrapod defending reefs and reefs has been completely different and it has not been possible to combine them into one.

There have been many side effects, such as that the reefs with tetrapods have been devastated and people have fallen victim to human accidents.

Even after the harbor is installed, the surface of the concrete tetrapod is very smooth, so the seaweed can not attach and the habitat is destroyed for a long time. In other words, areas where concrete tetrapods are applied are not suitable for life. Therefore, in order to make life easier for living creatures, a plurality of perforated grooves are formed on the surface of the tetrapod, and seaweed seed ropes are installed to provide habitat for living shellfish and fish.

There has been a demand for a technique that can protect a reef from waves and function as a protective device even if a person is stunned with the function of a reed.

Means for solving the present invention are as follows.

Tetrapods resting on breakwaters;

A tetrapod having a reticular function with a lattice or a helical line continuously extending over each cone of the tetrapod having a groove formed outside the tetrapod.

Here, the material of the tetrapod is a concrete having a high strength of 30 MPa or more in compressive strength.

Also, the admixture is mixed with the concrete, and the admixture is made of silica fume, fly ash, or blast furnace slag.

Preferably, the admixture is mixed in a range of 0 to 50% by weight of the cement.

Here, the grooves formed on the outside may be one or more of a lattice, a spiral, and a straight line, and the existing tetrapod is disposed inside and the reticle having a groove on the surface is disposed outside.

Also, the admixture for the concrete is made of an AE water reducing agent and / or a fluidizing agent.

The admixture is preferably used in a proportion of 0.5% to 3% of the cement.

Preferably, the admixture component is a mixture of one or more of melamine type, naphthalene type, polycarboxylic type, acrylic type, cellulose type and biopolymer type.

As a method for producing environmentally friendly tetrapods

Fabricating a shape die in which the outer surface forming one cone is symmetrically trisected;

Forming four molds of the same shape divided into three equal parts of 120 degrees at the center where tetrahedron four cones intersect;

Constructing the shape of the convex shape continuously in the form corresponding to each angle of the cone on the inside of the four formworks;

The four molds are assembled on the basis of the center axis of the tetrahedral cones;

And a step of injecting concrete having a strength of cement of 30 MPa or more into the mold manufactured in the step.

According to another embodiment of the present invention, there is provided a method of forming a concave-convex pattern of a desired shape on a steel sheet,

Fabricating a shape die in which the outer surface forming the cone is symmetrically divided into three parts by using a steel plate having a concavo-convex shape;

Forming four molds of the same shape divided into three equal parts of 120 degrees at the center where tetrahedron four cones intersect;

The four molds are assembled on the basis of the center axis of the tetrahedral cones;

The concrete having the strength of cement of 30 MPa or more is injected into the cone type sheet manufactured in the above step, and the desired shape is a lattice shape, a spiral shape, and a straight shape.

The injection port can be configured at any stage in advance to inject the concrete.

The following effects are exhibited by the present invention.

1) Since the eco-friendly tetrapod has grooves on the surface, seaweed seed rope can be easily attached and fixed.

2) Since the grooved grooves are grid-like, spiral-shaped, and straight-shaped, a plurality of grooves are provided, so that a large amount of seaweeds can be attached and recorded. Seaweeds Even if the seedling ropes are not attached, the grooved grooves are favorable for the coagulation of seaweed spores and serve as shelter for shellfish and fish.

3) Environment-friendly tetrapods can be installed irrespective of irrigated area coasts and irregular seabed topography.

4) It can be used in combination with conventional tetrapods, so it is possible to install an effective seaweed. Both stand-alone and combined installation are possible.

5) The environmentally friendly tetrapod is very economical due to its simple construction and construction.

6) The eco-friendly tetrapod has a number of grooves, so it acts as a safe tetrapod that can escape easily when a person falls.

7) Seaweeds produced in environmentally friendly tetrapods have the advantage of helping the income of daughters and providing habitats for marine animals and plants.

The eco-friendly tetrapod of the present invention makes dramatic changes in the composition of harbor, breakwater, latent, and seawater because it enables algae to grow on the surface of tetrapod. While conventional tetrapods destroy marine ecosystems, the eco-friendly tetrapods of the present invention serve to preserve and restore marine ecosystems. That is, if the conventional tetrapod is the main cause of environmental destruction, the tetrapod of the present invention can restore the environment.

Figure 1a shows an eco-friendly tetrapod of the lattice-like surface of the present invention.
Figure 1b shows an eco-friendly tetrapod with algae growing on the lattice-like surface.
2A is a view showing an environmentally friendly tetrapod of the spiral surface of the present invention.
Figure 2b is a view of an environmentally friendly tetrapod with algae growing on a spiral surface.
FIG. 3 is a view showing an environmentally friendly tetrapod with algae growing on a straight surface.
4A is a cross-sectional view of an environmentally friendly tetrapod having a helical surface.
FIG. 4B is a view showing a simulation in which spiral grooves of the surface of the environmentally friendly tetrapod having the spiral surface of FIG. 4A are spirally connected. FIG.
5 is a diagram showing three-dimensional modeling of tetrapod.
FIG. 6 is a view showing the arrangement of an environmentally friendly tetrapod and a conventional tetrapod on a beach.
Fig. 7 is a view showing a drilled hole, an anchor block insertion, and a section-fixed cross section in a perforated groove.
8 is a view showing a conventional technique.
9 is a diagram showing another conventional technique.

The present invention has been made in order to solve the above problems, and the order of carrying out the invention is as follows.

The first forms a perforated groove on the tetrapod surface.

   In order to produce eco-friendly tetrapods, grooved grooves are formed on the inner surface of a steel mold in the shape of a circular, elliptical or right angled section so that grooved tetrapods can be easily produced. The shape of the perforated groove may be a lattice shape, a spiral shape, a right angle shape, or the like. It is possible to form grooves having various shapes depending on the case.

The advantage of lattice grooves is that a large amount of seaweed rope can be attached because of the large number of transverse grooves on the environmentally friendly tetrapod surface.

The advantage of the spiral grooves is that a large amount of rope can be attached to the groove at a time in a short period of time without cutting the seaweed rope.

The advantage of the straight groove is that it is easy to fix the seaweed rope. Therefore, various shapes of grooves can be formed on the surface of the environmentally friendly tetrapod. This is possible because the formwork is made of steel formwork.

Secondly, the seaweed seed rope is attached to the perforated groove.

7 is detailed.

   The seaweed rope 760 can be firmly fixed because the perforated groove 710 is present. A hole 730 may be formed by an electric drill 720 and a plastic material 740 may be inserted into the hole as an attachment aid to increase the adhesive strength to the concrete nail 750 so as not to be detached even after a long period of time.

A concrete nail is inserted into the plastic material implement (740) to secure the rope (760) for grafting the seaweed. At this time, even if strong waves are applied, separation of rope of seaweed seedling ropes can be prevented. This is possible because the perforated groove 710 exists.

Third, in order to make grooves on the surface, it is necessary to solve the groove breakage problem according to a long time.

High strength concrete with a compressive strength of 30 MPa or more is used. Usually concrete with Portland cement can be used. In addition, mixed Portland cement concrete using admixtures such as silica fume, fly ash and blast furnace slag can be used. At this time, the capillary inside the concrete is distorted so that the internal alkaline (pH) component is less eluted.

Fourth, there must be a method of combining with conventional tetrapod construction.

   Tetrapod was most widely used for the composition of harbors, breakwaters, and potentials. Therefore, it is possible to reinforce with an environmentally friendly tetrapod outside of the conventionally installed tetrapod. This is because the engagement effect can be enhanced. Therefore, the inside of the sea is composed of conventional tetrapod and the outside is constructed of environmentally friendly tetrapod, and algae grow on the outer surface, and serve as shelter for shellfish and fish in the inner space.

Fifth, seaweed seedlings can be planted according to characteristics.

   Seaweeds Seaweeds attached to the ropes can use various algae such as seaweed, seaweed, kelp, and seaweed. Seaweeds such as tortoises can be transplanted to areas where low water depths are generated, and tetrapods can be transplanted by installing seaweed seed ropes such as matsutake where depths are deep. You can also attach ropes, such as hollows and corals.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, specific embodiments for carrying out the invention will be described with reference to the drawings.

In order to form an environmentally friendly breakwater, the embodiment of the present invention has the following steps.

1) Step of assembling steel formwork with lattice type grooved grooves

2) Placing high-strength concrete with compressive strength of 30 MPa or more and curing step

3) Steps to produce eco-friendly tetrapods by disassembling molds

4) Steps to make hole with electric drill in earthen groove of eco-friendly tetrapod

5) Establishment of seaborne rope before and after release of eco-friendly tetrapod into the sea and fixation using concrete nail

6) Establishment of the conventional concrete tetrapod on the inner side and installation of the environmentally friendly tetrapod of the present invention on the outer side in the construction of the environmentally friendly breakwater

7) The outer surface of the breakwater is recorded by seaweeds such as mung bean and mackerel, and the inside is provided with habitat of shellfish and fish

8) As the time elapses, a complete sea bed is formed in the breakwater

It is an object of the present invention to provide such a tetrapod.

A concrete description will be given below.

The structure body of the present invention is preferably a concrete material. Concrete uses high strength concrete with compressive strength of 30 MPa or more. This is because the strength of the surface must be high because various patterns must be formed on the surface. It also has the advantage of increased durability. Concrete can usually be used to manufacture concrete. Silica fume, fly ash, and blast furnace slag may be mixed and used as a concrete for tetrapod. When silica fume is used, the shape of the capillary inside the concrete is distorted, thereby preventing the high alkaline pH from flowing out. When blast furnace slag is used as an admixture material, it has the advantage of releasing iron ion, which helps adhesion of algae.

 When forming a large number of grooves on the surface of the tetrapod, the shape around the grooves is easily broken and the surface is easily deformed. Therefore, it is very difficult to make a groove shape.

In order to overcome this problem, in the present invention, if a cement having high strength (30 MPa), high fluidity (high performance water reducing agent) and high durability (mineral admixture) is used, grooved tetrapod is possible.

The ratio of concrete to produce high strength tetrapod is shown to be 30 MPa.

design
standard
burglar
(MPa) Largest size of coarse aggregate
(mm) Slump flow
(mm) Air amount range
(%) Water cement ratio
(W / C)
(%) Fine aggregate rate
(S / a)
(%) water
(kg) cement
(kg) Fine aggregate
(kg) Coarse aggregate
(kg) Admixture material Mixed material
(kg) Admixture
(kg) 30 25 600 3.5 40.5 44.4 170 380 750 950 40 3.8

The design reference strength was set at a minimum of 30 MPa. A design strength of 30 - 50 MPa is adequate. If it is less than 30 MPa, the strength is lowered and breakage easily occurs. If it is more than 50 MPa, the ratio of the binder and the admixture becomes high, which is uneconomical.

Cement is not related to the manufacturer, but in this formulation 380 kg of ordinary portland cement of Tong Yang Cement is used. The amount of portlanded cement is used in the range of 300 kg to 600 kg.

For the admixture, 40 kg of silica fume from Taewang Trading Co. was used. The admixture may be silica fume, blast furnace slag, or fly ash, and may be used alone or in combination. Admixtures can be replaced or added within 50% of cement usage

Fine aggregate used 750 kg of sea sand. Crushed sand, sea sand, river sand, stone, recycled sand can be used alone or in combination. The mixing capacity of fine aggregate can be used in the range of 500 kg to 1200 kg.

The coarse aggregate used was 950 kg of basalt crushed aggregate. Crushed stone aggregates, hard rocks and recycled aggregates can be used alone or in combination. The amount of coarse aggregate can be used in the range of 600 kg to 1,500 kg.

Fine aggregates and coarse aggregates can not produce high-quality concrete if they are outside the mixing ratio range. As an admixture, 0.5% of AE water reducing agent was used and 3.8 kg of 1% of total cement was added in the field by adding econex fluidizing agent. Of course, only 0.5% of cement can be used with AE water reducing agent.

The admixture may be a high performance AE water reducing agent and a fluidizing agent alone or in combination. The component may be melamine-based, naphthalene-based, polycarboxylic-based, acrylic-based, cellulose-based or biopolymer-based. The compounding ratio is 0.2% - 3% of cement. When the amount of the admixture is less than 0.2% of the cement, the fluidity is lowered, thereby causing problems in the formation of the tetrahedron grooved grooves. On the other hand, when more than 3% of cement is used, the possibility of material separation increases and economical problems arise

In the present invention, tetrapods having a perforated groove can be produced by having characteristics of high strength, high fluidity and high durability.

High strength has a design strength of 30 MPa or more, high flowability uses high performance AE water reducing agent and fluidizing agent.

The high durability is due to the long-term strength increase because it is mixed with silica fly, blast furnace slag, and fly ash as mineral admixture as well as portland cement.

(1) Previously, the design strength of tetrapod was 21 MPa.

The concrete design strength of the artificial reef structure is also 21 MPa.

(2) Since conventional tetrapods do not have grooves, ordinary concrete may be used.

High-velocity concrete is not required.

Since the present invention has many grooves, the shape of the grooves must be accurately shown, and therefore, a dense concrete having high fluidity should be used

Figure 1a is the outer shape of the lattice type tetrapod of the present invention

FIG. 1B is a view showing an environmentally friendly tetrapod with algae growing on a grid-like surface in FIG. 1A. FIG.

2A is a view showing an environmentally friendly tetrapod of the spiral surface of the present invention,

Figure 2b is a view of an eco-friendly tetrapod with algae growing on the helical surface of Figure 2a.

FIG. 3 is a view showing an environmentally friendly tetrapod with algae growing on a straight surface.

Tetrapods with helical grooves are convenient for working with a rope at a time, and concrete examples are given for helical tetrapods.

The lattice type and the straight type will be described in the following, which will be completed by working with the firstly having a helical groove.

 4A and 4B.

4B is an exploded view explaining the development of a steel mold to produce a single cone 400 of tetrapod and has a convex shape in the interior of the steel plate in order to produce a perforated groove shape. The tetrapod 400 of the present invention has difficulty in production. The design of the steel mold formwork for the production of the tetrapod having the perforated grooves 410 requires not only precise configuration of the final product (the perforated groove tetrapod) but also workability. After several trial and error, the final steel mold making process is as follows.

Steel mold making requires bending steel plates and creating a spiral groove in the interior, which requires sophisticated design work and construction. In order to make the first cone, the spiral convex shapes 411, 421, 431 in the three separated dies 410, 420, 430 must be engaged with each other at the interface between the first die and the third die.

Since the function of the grooved grooves is most important for the tetrads of the present invention, it is essential to construct the existing grooved grooves along with the formation of the existing tetrad molds. This task requires a high degree of design and fabrication technology.

Therefore, when the separately manufactured steel formwork is finally assembled, the internal grooves must be spiral, lattice-like, straight, and so on.

This will be described with reference to FIG.

First, the mold is made up of four sets of independent tetrapods (see Figure 5), and the part that makes up one cone at the time of joining is also made up of three parts.

Each part is represented by an engineered development view (see FIG. 4b) and shaped into shapes (510, 520, 530) of cones (1/3).

The perforated grooves are to be modeled according to the required shape, and a layout design should be made for each part (1/3 cone)

Although each part (1/3 cone) is separately manufactured, the overall shape and the internal convex grooves (irregularities depending on where the steel plate is seen) must be continuous with each other when final assembled (refer to FIG. 4b) .

In order to complete one tetrapod 500, the first to fourth molds 510, 520, 530, 540 having a convex shape should be manufactured.

Each of the molds has a convex shape inwardly so that the final tetrapod 500 is formed with concave grooves.

To form the first cone, the upper portions 511, 521 and 531 of the first die 510, the second die 520 and the third die 530 are coupled,

By combining the first, third and fourth molds 510, 530, 540 to form the second cone, the upper portions 512, 532,

In order to manufacture the third cone, the upper portions 513, 523, and 543 of the first die 510, the second die 520, and the fourth die 540 are coupled,

Similarly, in order to manufacture the fourth cone, the upper portions 522, 533, and 541 of the second die 520, the third die 530, and the fourth die 540 are coupled to complete one tetrapod 500 will be.

This will be described with reference to FIG.

If you build tetrapods at port construction, that number will be more than a thousand.

The height of the tetrapods is more than 5 m - 10 m because they are piled up above the surface of the sea floor

Therefore, if the tetrapod provided inside is provided with a conventional tetrapod and the tetrapod with the groove of the present invention is provided only in the outer portion, economical efficiency is not greatly burdened.

Since the grooved tetrapod of the present invention is the same as the existing shape except for the groove, the grooved tetrapod does not move because it is well engaged with each other.

If the external tetrapod has a different shape, it can not interlock with the internal tetrapod. Since the shapes are the same, the movement does not occur due to the waves.

7A to 7C, the following will be described.

And a rope for implanting seaweed on the surface of each of the first to fourth cones of the tetrapod.

A plastic auxiliary mechanism 740 is inserted into the concave groove 710 of the cone to form a hole 730 with an electric drill 720 and to improve the coupling force with the concrete nail 750 and the concrete nail 710 is inserted into a concrete nail 720 Thereby fixing the rope 760 for grafting the seaweed.

Of course, it may be directly penetrated, but it may be provided with a separate fastening mechanism. At this time, even if strong waves are applied, separation of rope of seaweed seedling ropes can be prevented. This is possible because the perforated groove 710 exists.

Tetrapod (breakwater harbor sector) and reef (fisheries sector) are completely different fields.

Therefore, there are very few exchanges between industrialists who are engaged in tetrapods and fish farms because they are different from each other.

However, the present invention is a combination of tetrapod and anchovy simultaneously.

 Tetrafod can not grow any algae because its surface is smooth even after 30 years of installation, and the environment is degraded. Therefore, it is an object of the present invention to set up a plurality of grooves on the surface by spiral, lattice, and straight lines to set the goal of grafting algae. Previously, it was difficult to form a steel form having a groove, It is.

It is very difficult to produce a deformed and grooved shape when a steel mold is made and concrete is laid, that is, when a large number of grooves are formed on the surface of the tetrapod, the shape around the groove easily breaks, will be.

The present invention solves this problem.

The method of producing tetrapod is as follows.

Fabricating a shape die in which the outer surface forming one cone is symmetrically trisected;

Fabricating four identical shaped dies divided into three equal parts at 120 degrees from the center of intersection of tetrahedral four cones;

Constructing a convex shape of a functionally required shape within each of the four formworks, and configuring the convex shape continuously in a form corresponding to each corner of the four formworks;

The four molds are assembled on the basis of the center axis of the tetrahedral cones;

And the concrete having the strength of cement of 30 MPa or more is injected into the completed mold, thereby processing the tetrapod having the fishing function.

The injection port for injecting concrete may be formed at any stage.

Here, it is the most difficult to make the spiral grooves. It is advantageous that the ropes are wrapped around the ropes at once to facilitate the work by easily loosening and releasing the rope as the base for the transfer of the seaweeds.

Even when the rope is replaced again after a while, it is easy to work and it is advantageous to save labor costs.

Another embodiment is as follows.

Forming a concavo-convex shape of a desired shape on the steel sheet, and forming a spiral pattern of the concavo-convex shape continuously;

Fabricating a shape die in which the outer surface forming the cone is symmetrically divided into three parts by using a steel plate having a concavo-convex shape;

Fabricating four above-mentioned three shape molds at 120 degrees from the center where tetrahedron four cones intersect;

The four molds are assembled on the basis of the center axis of the tetrahedral cones;

And injecting concrete having a strength of cement of 30 MPa or more into the mold manufactured in the step.

Convex grooves are formed on the inner side of the cone shape, and concave grooves are formed on the outside, so that the unevenness differs depending on the direction in which the concave grooves are viewed.

Other materials may be used instead of steel sheet.

The best embodiment is a steel plate.

Although it is not easy to produce a convex shape on the inner side of the formwork, it is very difficult to work so as to have a convex shape in which the steel plates are divided into three pieces as shown in FIG.

The present invention readily provides a difficult method.

Also, in order to facilitate the production of molds of tetrapods during the production of the steel sheet, an iron sheet having a convex shape may be produced and used in the steel sheet production step.

1: tetrapod body 2: tetrapod inner space hole entrance 3. Byproduct
100, 200, 300, 400: tetrapod 110: grid-shaped groove 120, 220, 320:
410: first die 420: first die 430: third die
411: Spiral convex shape of first die 421: Spiral convex shape of second die
431: Spiral convex shape of the third die
510: first die 520: second die 530: third die 540: fourth die
511, 521, 531: Cone portions of the first, second and third formwork for producing the first cone
512, 532, 542: Cone portions of the first, third and fourth molds for making the second cone
513, 523, 543: Cone portions of the first, second and fourth molds for producing the third cone
522, 533, 541: Cone portions of the second, third and fourth molds for making the fourth cone
610: conventional Tetrapod 620: environmentally friendly Tetrapod
710: Yaw groove 720: Electric drill 730: Hole 740: Plastic auxiliary device
750: Anchor bolt or concrete peg 760: Rope for transplanting algae

Claims (12)

delete delete delete delete Tetrapod consisting of four legs resting on a breakwater;
The material of the tetrapod is concrete and has a compressive strength of 30 MPa to 50 MPa or less,
In order for the compressive strength to be achieved,
The concrete is mixed with an admixture, and the admixture is selected from silica fume, fly ash, and blast furnace slag,
The admixture is used in a proportion of 12% to 50% by weight of the cement,
Also, the admixture is mixed with the concrete, and the admixture is selected and mixed with the AE water reducing agent and / or the fluidizing agent, and the admixture is used at a ratio of 2.3% to 3%
And has a groove formed on the outside of the tetrapod having a high strength property with a compressive strength of 30 MPa or more and 50 MPa or less,
Wherein the grooves formed on the outside have spiral grooves continuously extending over the corners of the tetrapod,
Characterized in that said seed rope having a minimum diameter of at least 10 mm obtained by planting seaweeds has a helical structure continuously connected to each leg so as to be wound on each leg at one time.
delete delete delete 6. The tetrapod having a fish-like function as claimed in claim 5, wherein the admixture component is one or more of melamine, naphthalene, polycarboxylic acid, acrylic, cellulose, and biopolymer.
7. A method for producing a tetrapod having a fishing action function according to claim 5,
Fabricating a shape die in which the outer surface forming one cone is symmetrically trisected;
Fabricating four identical shaped dies divided into three equal parts at 120 degrees from the center of intersection of tetrahedral four cones;
Assembling the four molds based on the central axes of the tetrahedral cones to complete the shape;
Injecting concrete;
The method comprising the steps of:
7. A method for producing a tetrapod having a fishing action function according to claim 5,
Forming a concavo-convex shape of a desired shape on the steel sheet, and forming a spiral pattern of the concavo-convex shape continuously;
A step of fabricating a shape die in which the outer surface forming the cone is symmetrically divided into three parts by using the steel plate having the spiral shape of the concavo-convex shape;
Fabricating four molds identical to the above-described three-dimensionally shaped molds at a distance of 120 degrees from the center where tetrahedron four cones intersect;
Assembling the four molds based on the central axes of the tetrahedral cones to complete the shape;
Injecting concrete;
The method comprising the steps of:
delete

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