JP2789534B2 - Artificial artificial rock reef and its installation method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to artificial artificial rock reefs (artificial natural reefs) which can be used as artificial rocks or fish reefs for artificial shore fishing, artificial surfing, artificial marine pools, etc. Artificial rock or fish reef made to resemble
And its installation method.

[Conventional technology]

In recent years, surf fishing has gained explosive popularity as an easy and healthy recreation, and artificial surf fishing grounds have been set up in suburban areas where fishing is not blessed. However, the structure of the conventional artificial surf fishing ground is mainly made of an iron pipe or a steel frame, and for example, a conventional type in which a floor slab is fixed on a steel pipe pile erected on the bottom of the water and a handrail is merely attached. There are piers for sea fishing parks, etc.In each case, the appearance does not match the natural scenery.In addition, fishing from a position far away from the water surface, surf fishing and surfing while directly touching seawater etc. The structure was such that you could not enjoy playing.

[Problems to be solved by the invention]

INDUSTRIAL APPLICABILITY The present invention artificially and easily creates the same appearance and environment as natural reefs, and enables surf fishing, playing with rocks, etc., to be performed more safely and easily while directly touching nature such as seawater. It is an object of the present invention to provide an artificial artificial rock reef and a method for installing the same.

[Means for solving the problem]

In order to solve the above-mentioned technical problem, the artificial artificial rock reef of the present invention has a framework made of iron, reinforced concrete or plastic erected on a concrete base, and expanded metal (staggered at regular intervals) on the surface of the framework. A metal plate processed into a diamond-shaped or tortoise-shaped mesh) or a welded wire mesh and a non-woven fabric to form a sprayed underlayer, and a steel fiber reinforced mortar on the surface of the sprayed underlayer. In this case, the fiber-reinforced mortar spraying layer is formed by spraying an inorganic fiber-reinforced mortar or an organic fiber-reinforced mortar.

Further, the artificial artificial rock reef installation method of the present invention may be configured such that the artificial artificial rock reef is placed such that a part of the reef is exposed above the water surface after the artificial rock reef is installed, or the entire reef is submerged under the water surface. It is a means to be installed underwater so that it becomes.

By installing the artificial pseudo-rock reef of the present invention in water by the above-mentioned installation method, it is possible to artificially and easily create a suitable appearance and environment similar to a natural fish reef, and the artificial pseudo-rock reef above the water surface Surf fishing and playing on the shore can be performed more safely and easily.

In the artificial artificial rock reef of the present invention, a framework made of iron, reinforced concrete or plastic is erected on a concrete base, and a spray base layer is formed on the surface of the framework using expanded metal or welded wire mesh and nonwoven fabric. It is obtained by spraying a steel fiber reinforced mortar, an inorganic fiber reinforced mortar, or an organic fiber reinforced mortar on the surface of the sprayed underlayer. As the inorganic fiber reinforced mortar used at this time, for example, glass fiber reinforced mortar, rock wool reinforced mortar, carbon fiber reinforced mortar, etc., as organic fiber reinforced mortar, for example, polyethylene fiber reinforced mortar, polypropylene fiber reinforced mortar, Aramid fiber reinforced mortar and the like.

FIG. 1 is an enlarged partial cross-sectional view of the artificial artificial rock reef of the present invention. For example, as shown in FIG. 1, a skeleton composed of L-shaped steel 2 is erected on a concrete base 1 and this skeleton is erected. Is sprayed on the surface of the substrate by using an expanded metal and a nonwoven fabric. Next, a steel fiber reinforced mortar having a thickness of about 50 to 15
By spraying 0 mm, a steel fiber reinforced mortar spray layer 4 is formed.

The mixing ratio of cement and sand in the steel fiber reinforced mortar used at this time is 1: 2, and the water cement ratio (w / c) is 40-50%
The mortar may further contain an inorganic pigment as described later.

FIG. 2 is an enlarged partial cross-sectional view of the vicinity of the upper portion of the opening when providing a cave, a pit, a side hole, a shelf, etc. on the pseudo rock reef.
A frame is formed by using a model steel 2, an H-section steel 2 ', and the like, and a laying foundation layer 3 and a steel fiber reinforced mortar spraying layer 4 are formed on the surface of the frame in the same manner as in FIG.

The artificial pseudo-rock reef of the present invention can be formed into a desired shape and size by appropriately changing the shape and size of the frame.For example, when used as an artificial shore fishing fish reef, the bottom area is 50 to configured to the size of 100m ^2.

In addition to forming the frame with iron as shown in FIG. 1 or FIG. 2, the frame can be formed by using reinforced concrete or plastic, and the weight thereof can be appropriately adjusted. Further, the form can be arbitrarily configured, and it is preferable to provide a cave, a pit, a side hole, or the like, or to provide a shelf, a hole, a groove, a small gap, or the like on the surface of the artificial rock, similar to a natural reef. For example, in consideration of the habit of each fish and shellfish such as red sea bream, lobster, moray eel, lobster, abalone, octopus, mahata, etc., grooves, small gaps, shelves, shadows, shadows, cavities, seaweed beds, etc. are provided on the reef. .

The artificial artificial rock reef of the present invention has a rough surface, and furthermore, due to the provision of the above-mentioned grooves, small gaps, etc., the surface area is further increased, and the area to which the attached organisms are attached becomes large. And the number of fish that gather is increasing.

In the method of the present invention, the artificial artificial rocky reef is installed in water so that a part of the artificial artificial rocky reef is exposed above the water surface after the installation, or such that the entire artificial artificial rocky reef is submerged under the water surface. Is done. For example, the rock reef is installed so that it is always exposed above the water surface, or is submerged at high tide, and is installed so that a part thereof is exposed above the water surface at low tide, or is always submerged under water. Can be installed to

When installing the artificial artificial rock reef of the present invention in water,
For example, it is fixedly installed on the water bottom, or fixedly installed on a gantry standing on the water bottom. Usually, the former is for installation in a relatively shallow water area with a depth of 3 to 8 m, and the latter is for installation in a depth of 5 m.
This is performed when installing in a relatively deep water area of about 20m.

The artificial pseudo-rock reef of the present invention is similar in material, texture, etc. to a natural fish reef.However, for the purpose of realizing a more natural rock color in the sea and making it look like a natural reef, inorganic pigments and the like are added to mortar. They can be mixed as appropriate.

In the artificial artificial rock reef of the present invention, a rough frame is usually manufactured at a factory using steel materials and the like, and after being transported to the site, a spraying underlayer is formed as described above, and further, a fiber-reinforced mortar spraying process is performed. Manufactured.

The artificial artificial rock reef has a water depth, tide velocity,
Although the design is made in consideration of waves, wind speed, etc., it is also possible to easily change the shape, size, etc. of the frame appropriately according to the situation of the installation site after loading into the site.

The completed artificial rock reef is lifted by a hoist ship or the like, transported to the installation location, and gently installed by the hoist ship or the like on a water floor or a gantry standing on the water floor.

In the method of the present invention, artificial artificial rock reefs have
It is installed in a suitable place according to the use. As shown in the example of FIG. 8 described later, it can be installed continuously from the shore of the beach.

〔Example〕

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

3 to 9 are longitudinal sectional views showing one embodiment of the method for installing artificial artificial rocky reefs of the present invention, and in each case, a part of the rocky reef is exposed on the water surface after the installation. This is an example that can be installed underwater and used as artificial rocks for artificial surf fishing, playing with rocks, artificial marine pools, and the like.

FIG. 3 shows that artificial artificial rock reef 5 formed on concrete base 1 as described above is fixedly installed on the bottom of the water at a depth of 3 to 8 m, and then crushed stone 6 (around a human head to about 1 m). This is an example in which is input.

FIG. 4 shows an example in which artificial artificial rock reef 5 is fixedly installed on a gantry (steel pipe pile) 8 erected on the bottom of the water at a depth of 5 to 20 m, and crushed stone 6 is thrown around gantry 8. . In the case of these FIGS. 3 and 4, a part of the rock reef is exposed on the water surface after installation, and the part exposed on the water surface is used as an artificial shore fishing place, an artificial shore playground, and the like.

In the example of FIG. 3 and FIG. 4, an evacuation shelter is provided inside the artificial artificial rocky reef 5 during a thunderstorm or in stormy weather. Has been established. During a thunderstorm or stormy weather, anglers and people playing on the rock can retreat from the evacuation site entrance 7 to an evacuation site provided in the artificial artificial rocky reef 5.

FIG. 5 shows a conventional pier for a sea fishing park in which a floor slab 9 is fixed on a steel pipe pile 8 erected on the water bottom and a handrail 10 is simply attached.

With artificial artificial rocky reefs installed by the method of the present invention, instead of fishing from a position far away from the water surface as in this conventional pier, enjoy rock fishing and playing with rocks while directly touching nature such as seawater It is different from a conventional jetty in appearance and more similar to natural artificial rock.

FIG. 5 shows an example in which several artificial artificial rocky reefs 5 are installed adjacent to a conventional pier for a sea fishing park to form an artificial fish reef, or a small artificial shore fishing spot is exposed partially on the water surface. . At this time, each artificial artificial rock reef 5 is always exposed on the water surface after installation, or is immersed in water at high tide, and is partially exposed on the water surface at low tide.
Alternatively, it is appropriately installed so as to be always immersed under the water surface.

FIG. 6 shows that after artificial artificial rocky reef 5 is fixedly installed on the bottom of the water,
This is an example showing a case where the shape of artificial artificial rocky reef 5 is inclined without charging crushed stone 6 as shown in FIGS. 3 and 4. Thus, in the present invention, the shape of the artificial artificial rocky reef 5 can be freely formed.

FIG. 7 shows that artificial artificial rocky reef 5 is fixedly installed on the bottom of the water so that a part of the reef is exposed above the water surface after installation.
In this example, at the time of low tide, a depression is provided on the upper surface of a portion exposed on the water surface so as to form a tide pool 11.

FIG. 8 is also an example in which a depression is provided on the upper surface of a portion exposed above the water surface at low tide so as to form a tide pool 11, as in the case of FIG. The artificial rock reef 5 is installed in the sea continuously from the shoreline.

7 and 8, the artificial artificial rock reef 5
A tide pool 11 appears on the upper surface of the vehicle, so that surf fishing, surfing, swimming and the like can be safely performed.

In the method of the present invention, an illuminating device using an optical fiber is provided at an appropriate position of the fiber-reinforced mortar spraying layer of the artificial artificial rocky reef, and light is transmitted from a light source at a remote place such as land, so that the beach can be isolated even at night. You can also enjoy fishing and playing on the beach.

FIG. 9 shows that artificial artificial rock reef 5 is fixedly installed on the bottom of the water so that part of the reef is exposed above the water surface after installation.
In this example, the part exposed on the water surface is used as an artificial shore fishing ground and an artificial shore back ground.

In the example of FIG. 9, an illuminating device 13 using an optical fiber 12 is provided at an appropriate position of the steel fiber reinforced mortar spraying layer 4 in the water and at a portion exposed from the water surface, and emits light from a light source at a remote place such as land. Sending enables safe night fishing and surfing.

The artificial artificial rock reef of the present invention is used as an artificial shore fishing ground, an artificial shore playground, and also used as an artificial fish reef for recreational fish, a pseudo rock for an aquarium, a pseudo rock for a store aquarium, a pseudo rock for a small aquarium, a pseudo rock for an artificial marine pool, and the like. .

〔The invention's effect〕

By installing the artificial pseudo-rock reef of the present invention in water by the above-mentioned installation method, it is possible to artificially and easily create a suitable appearance and environment similar to a natural reef, and the artificial pseudo-rock reef above the water surface Surf fishing, playing on the shore, etc. can be performed more safely and easily on the part exposed to the sea while directly touching nature such as seawater. Further, by arranging an optical fiber lighting device at an appropriate position of the fiber-reinforced mortar spraying layer on the artificial artificial rocky reef, surf fishing and playing with the shore can be enjoyed at night.

[Brief description of the drawings]

1 and 2 are partially enlarged cross-sectional views of the artificial artificial rock reef of the present invention, and FIGS. 3 to 9 are longitudinal sectional views showing one embodiment of the method of installing the artificial artificial rock reef of the present invention. DESCRIPTION OF SYMBOLS 1 ... Concrete base 2 ... L-shaped steel 2 '... H-shaped steel 3 ... Spraying underlayer 4 ... Steel fiber reinforced mortar spraying layer 5 ... Synthetic artificial rock reef 7 ... Shelter entrance 8 ... Stand ( Steel pipe pile) 11 Tide pool 12 Optical fiber 13 Lighting device

Claims (7)

(57) [Claims] 1. A frame made of iron, reinforced concrete or plastic is erected on a concrete base, and a spray base layer is formed on the surface of the frame by using expanded metal or welded wire mesh and non-woven fabric. An artificial artificial rock reef formed by spraying a steel fiber reinforced mortar, an inorganic fiber reinforced mortar, or an organic fiber reinforced mortar on a surface of a stratum to form a fiber reinforced mortar sprayed layer. 2. A frame made of iron, reinforced concrete or plastic is erected on a concrete base, and a spray base layer is formed on the surface of the frame by using expanded metal or welded wire mesh and non-woven fabric. An artificial artificial rock reef formed by spraying steel fiber reinforced mortar, inorganic fiber reinforced mortar or organic fiber reinforced mortar on the surface of the formation to form a fiber reinforced mortar sprayed layer, after installation, part of the reef is placed on the water surface A method for installing artificial artificial rocky reefs, wherein the artificial reefs are installed in water so that the reefs are exposed or all of the reefs are submerged under water. 3. The artificial artificial rock reef installation method according to claim 2, wherein the artificial artificial rock reef is fixedly installed on a water floor. 4. The artificial artificial rocky reef installation method according to claim 2, wherein the artificial artificial rocky reef is fixedly installed on a stand erected on the water floor. 5. The artificial artificial rocky reef installation method according to claim 2, wherein an evacuation entrance is opened at a portion of the artificial artificial rocky reef exposed above the water surface. 6. The artificial artificial rock reef installation method according to claim 2, wherein a depression is provided on an upper surface of a portion of the artificial artificial rock reef exposed above the water surface at low tide so that a tide pool can be formed. How to install artificial artificial rock reefs. 7. The artificial artificial rocky reef installation method according to claim 2, wherein an optical fiber illuminating device is disposed at an appropriate place of the fiber reinforced mortar spray layer of the artificial artificial rocky reef. Installation method.