JPH0346606B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an anti-icing structure that prevents running water from entering areas where algae or fish and shellfish breed, and has a wave-dissipating effect.

(Prior Art) Relatively shallow waters along the coasts of icy areas are breeding grounds for sea creatures and are very important places for fishing.

Therefore, when drift ice invades such a place,
Since it causes tremendous damage to the reproduction of marine life, it is necessary to prevent this from occurring, and in the past, an anti-icing structure shown in Fig. 5 has been devised.

When drift ice 2' is pushed towards this anti-icing structure 1', the drift ice 2' moves in the direction shown by arrow A' and the slope of drift ice structure 1' runs onto the garter frame 3'. The ice is bent and crushed, and the crushed ice is piled up on an inclined garter frame to prevent it from entering.

(Problem to be Solved by the Invention) However, in the above-mentioned anti-icing structure, the drift ice is piled up by being folded and crushed by running onto the inclined garter frame. There was a problem that the structure could not function as an anti-icing structure because there was a risk of objects falling inside.

The present invention has been made in view of the above problems, and its purpose is to provide an anti-icing structure with excellent anti-icing properties for algae and seafood breeding grounds, aquaculture farms, etc. .

(Means for solving the problems) The means of the present invention for solving the above problems are as follows:
At each corner of the triangular bottom plate, a support is erected upward and tilted toward the center of the bottom plate, and
A top plate is provided on the upper surface of these pillars to form an anti-icing body, and the anti-icing body is arranged horizontally so that the top corner portions and bottom portions of the bottom plate are alternately located in the direction of the open sea. The structure is as follows.

(Function) According to the above configuration, the anti-icing structure of the present invention has the apex angle and the base portion of the bottom plate alternately arranged horizontally with respect to the open ocean, so that the pillars can be tilted to any desired inclination. Due to the arrangement, the drift ice is bitten between these pillars and is received by the top plate.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

The anti-icing structure A of the present invention is formed by arranging the anti-icing bodies 1 horizontally with their orientations alternately changed, and the anti-icing bodies 1 have an oblique side 2b with respect to a bottom side 2a. Slightly longer isosceles triangle base plate 2
, three pillars 3 each having a circular cross section are installed at each corner 2c of the bottom plate 2 in a concave position with the center of gravity of the triangle above the center of gravity, and a center of gravity is located at the upper end of the pillar 3. is integrally formed of reinforced concrete or steel concrete by a bottom plate 2 and a top plate 4 of similar shape, which are arranged to overlap vertically with the center of gravity of the bottom plate 2.

The support 3 is erected coaxially with each center line of the bottom plate 3, and the support 3a is erected at the top corner 2c ₁ , and the support 3a is erected at both corners 2c ₂ of the base 2a.
Since it is erected at a slight incline from b, the anti-icing body 1 is placed at the base 2a of the bottom plate 2 and the apex angle 2 with respect to the open ocean.
When arranging the hypotenuses 2b facing each other so that the columns ₃ and 1 are arranged alternately, an anti-icing body is formed in which the struts 3 are arranged alternately at different inclinations, as shown in FIGS. 2 and 3. is configured.

Further, the bottom plate 2 is not limited to an isosceles triangle, but may be formed into an equilateral triangle, and each of the supports 3 may also be erected at different inclinations.

Furthermore, the anti-icing bodies 1 can also be arranged in a curved manner.

In addition, as shown in FIG. 4, the bottom surface of the bottom plate 2 has an uneven shape.
Alternatively, by providing the protrusion 5 on the entire bottom surface, the anti-icing body 1 is always installed vertically in response to changes in the unevenness of the seabed.

Further, as another embodiment, by arranging a plurality of through holes in the bottom plate 2 in a scattered manner, the uplift force during wave action can be reduced.

Next, the method of using the anti-icing structure according to the above configuration of the present invention and the behavior of drift ice will be explained.

The anti-icing structure A is constructed by arranging a necessary number of anti-icing bodies 1 with the apex angles 2a ₁ and the bottom portions 2a of the bottom plates 2 facing alternately with respect to the open ocean, that is, the direction of intrusion of drift ice m.

Then, the drift ice m that has pushed against the anti-icing structure A constructed in this way comes into contact with the groups of pillars erected at the top corner 2a ₁ and the corners 2a ₂ on both sides of the bottom, and at the same time, these It bites between the pillars of the ice m and stops its movement, and the top plate prevents it from going beyond the top plate and enters the inside, and the drift ice m whose movement is stopped becomes a new anti-icing block.
It also serves to stop the drift ice that is rushing in one after another.

Moreover, the anti-icing structure A according to the present invention can have its shape specifications and arrangement intervals rationally determined based on knowledge of seawater engineering and structure design methods.

(Effects of the Invention) The present invention has the following effects by having the above configuration.

The unit structure of the anti-icing body, which is formed by a triangular bottom plate, top plate, and pillars installed between them, is easy to construct and transport, so it can be easily prevented regardless of location or seabed conditions. can be formed within the ice structure.

By configuring the ice-boosting structure by arranging the waterproof bodies horizontally with the top corners and bottoms of the bottom plates alternately positioned toward the open sea, a complex and irregularly inclined column group is created. Since the column group can completely block the drift ice that is being pushed away, the blocked drift ice can also block other drift ice, so the waterproof structure completely prevents the intrusion of drift ice. It can fully fulfill its role as an object.

[Brief explanation of drawings]

Fig. 1 is a plan view of the anti-icing structure of the present invention, Fig. 2 is a front view thereof, Fig. 3 is a side view of the structure in use, Fig. 4 is a side view of another embodiment, and Fig. 5 is a conventional example. FIG. A... Anti-icing structure, 1... Anti-icing body, 2... Bottom plate, 2a... Bottom part, 2c... Corner part, 3... Support column, 4... Top plate.

Claims (1)

[Claims] 1 At each corner of a triangular bottom plate, support columns are erected that are inclined upward toward the center of the bottom plate, and a top plate is provided on the top surface of these supports to form an anti-icing body. 1. An anti-icing structure characterized in that the bodies are arranged horizontally in such a manner that the top corner portions and the bottom portions of the bottom plates are alternately located with respect to the open ocean direction.