JP2002194724A - Offshore/underwater structure using concrete making use of steel material for part of aggregate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an offshore/underwater structure using a concrete making use of a steel material for part of aggregate capable of increasing sea-weed places used as feed for living things while the offshore structure for a fish reef or the like only provides the shadows to the living things in the sea. SOLUTION: A concrete structure using a steel material or the like for aggregate is attached to the conventional structure to accelerate the generation of an iron ion and increase sea-weed or the like, and the increase of fishing resources and the protection of the living things in the sea can be expected.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for enhancing the breeding effect of marine life by using concrete mixed with steel for a concrete structure constructed in the ocean or underwater.

[0002]

2. Description of the Related Art Conventionally, many underwater structures such as fish nest blocks, wave-dissipation, and consolidation, and marine structures such as coastal retaining walls use reinforcing bars for reinforcement. Nearby, it was constructed with concrete using large coverings in consideration of corrosion.

[0003]

Conventional underwater and marine concrete structures have a certain effect on marine creatures, such as creating shadows on marine organisms, but unlike natural rocks. However, there is a problem that it has little effect on the propagation of algae and shellfish. The present invention promotes the propagation of algae and shellfish by generating iron ions by arranging a concrete surface to which iron is attached, such as by using steel or concrete using steel in the sea or on the coastal shore. It is expected to increase fishery resources and protect marine life.

[0004]

Means for Solving the Problems The present invention is based on the fact that the inventor has been engaged in marine civil engineering for many years and has been working on many underwater structures (fish nest blocks, caisson, reinforced concrete blocks, wave breaking blocks, etc.) and marine structures. While devising objects (quays, seawalls, etc.), it was devised by paying attention to the fact that algae proliferate on steel materials left in the sea and nearby reefs, and schools of juveniles can be seen. The main improvement is that concrete blocks made of steel (including iron) are used instead of aggregates on or near the surface of concrete structures in the sea or under the sea. The effect of generating iron ions can be obtained by directly attaching a steel material (including an iron material) or the like. This promotes the growth of underwater algae, feeds on algae,
The purpose is to help the breeding of shellfish and rockfish used as hideaways and to secure fishery resources, and it is also considered to be useful for protecting the ecosystem of marine life.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention include:
The structure of the present invention is applied to the surface of a marine or underwater concrete structure such as a fish nest block or a wave breaking block. Figure 1,
See Figure-2

[0006]

According to the present invention, the structure hardened only with concrete promotes algae to proliferate on the structure, and the growth environment of marine life is improved, thereby securing fishery resources and improving the marine life. It will also protect the ecosystem.

[Brief description of the drawings]

[Fig. 1]

FIG. 2 Top view (bottom view)

FIG. 3 is a front view

FIG. 4 is a cross-sectional view

FIG. 5 is a longitudinal sectional view

[Explanation of symbols]

    Each of the mounting examples of the present invention will be described.

Claims (1)

[Claims] (1) Using concrete in which steel is mixed with aggregate,
One that manufactures all or a part of the marine and underwater structures, and one in which steel materials are attached to structures for the purpose of breeding seaweed.