JPH064968B2 - An artificial island facility to be installed offshore - Google Patents

Description

TECHNICAL FIELD The present invention relates to an offshore facility or structure to be installed offshore, and is expressed in katakana from the present time to the future in accordance with changes in the modern living environment. It is related to the marine facilities that are close up in one of the leisure industries in a broad sense that is appropriate, and the structure that is constructed as an artificial island is used as a base and the artificial beaches that accompany it are mainly deployed. It relates to marine facilities that comprehensively compose various facilities.

Conventional technology Beaches are intended to benefit from the natural beaches and the sea, and there is no technical aspect involved in the beach. The facilities on the beach should be provided as needed, and will be opened and completed for the vacation and recreation of the people who gather there.

On the other hand, the artificial island has a long history, but it is known that caisson construction is used in the field of civil engineering to construct a structure by towing and installing the structure to the offshore. Has also become a part of the construction industry. Depending on the purpose of such an artificial island facility, it is adopted as a steel structure or a reinforced concrete structure, and of course a composite of these is also known. It is well known that the ocean airport facility, which has become a hot topic these days, is an artificial island facility that should be paid attention to in another aspect, and its scale has reached the order of 1,000 m.

The artificial island facility is not limited to the fixed type as described above,
It is also known as a structure that floats or floats on the sea, and a barge or sep (SEP, self-elevating platform) is a typical one. At these facilities,
Simply put, mooring lines (chains) and anchors are used to connect to the sea floor, and the degree of floating / sinking of a structure that forms a box is adjusted by increasing or decreasing ballast. In addition, the seated type that sits on the sea floor allows the spud to expand and contract freely to lift up and down, and an artificial island facility that is stable against waves and tides is obtained.

Problems to be Solved by the Invention Conventionally, a beach is a natural ocean and was developed under appropriate conditions such as sandy beaches and water depths, and various facilities and equipment will also be installed depending on the convenience of transportation and location conditions such as nearby commercial areas. Although it has become complete and prosperous, the biggest problem is that the concentration of vacationers causes pollution of seawater at famous beaches. Judging from the standard of water quality, it could seriously affect recreation and recreation. In addition to this hygiene point of view, the concentration of holidaymakers leads to a shortage of the absolute number of facilities, and the acceptance conditions have reached the limit, so that the conditions and environment are limited. Even if a suitable place is sought, it is not possible to solve it easily.

Means for Solving the Problems The present invention was developed with the object of providing a healthier beach for leisure from the above-mentioned situation of beaches. That is, the present invention installs a floating island on the offshore by a technique known as an offshore structure, and attaches an artificial beach as a base of the facility.
The beach has an artificial beach that forms the seabed at an appropriate depth, and by separating the natural sea area, it is possible to enjoy the same bathing as the natural beach. The gist is that various facilities necessary for operation are installed or equipped. Based on such a concept, in the present invention, the artificial beach is constructed with a steel frame structure, the base end is fixed to the main body side and projected by a cantilever, and a safety fence is provided on the outer periphery thereof to divide the water area into a beach. There is.

Among the facilities installed on the main body, the power generation equipment is not limited to sunlight, and the heat energy on the artificial islands is also obtained from sunlight, so that the water temperature that accompanies the depth of the water offshore is suitable for beaches. It has a feature. In this way, a new beach is provided under the unpolluted seawater offshore and in a well-equipped environment of various facilities installed on the main body of the facility.

EXAMPLES The present invention will be described based on examples.

Fig. 1 shows an outline of the artificial island facility of the present invention, Fig. 1 (1) is a side view, (2) is a plan view, and Fig. 2 (1),
(2) The drawings are a side view and a plan view of another embodiment, and the same components are denoted by the same reference numerals.

The artificial island, indicated by 1 in its entirety, is preferably installed offshore under the same location conditions as the existing natural beach,
Sea surface W. L. Only shown.

The central portion 2 is the main body portion of the artificial island facility 1 of the present invention,
It is a box made of reinforced concrete, and each side has a rectangular shape with a size of several tens of meters, and has a partition wall inside. To levitate to the specified position. The height of the barge is a few meters and the lower half is kept under water.

Reference numeral 3 denotes an artificial beach on the side of the opposite long side of the main body 1, which is composed of an artificial beach 31 and a safety fence 32 standing up and down on the outer periphery of the artificial beach 31 above and below the sea level. The artificial beach 31 has a base end on the main body side fixed to the underwater portion of the main body 1,
The main body 1 is composed of a steel frame structure that is cantilevered toward the outside.
A stepped portion 33 projecting above the water surface is formed at the connection portion to the wrinkle portion and serves as a ridge when wavy. 34 is a safety fence 32
Floating buoys mounted at intervals on the top edge, colored for signs and showing boundaries. You may add a sign such as a red flag.

A building 4 is built on the main body 2. This building is main body 2
It is a reinforced concrete structure based on, and houses the required facilities and has a solar light receiving facility 5 on the roof. The facilities in this building include a management room that manages the entire artificial island, accommodations such as hotels for vacationers, changing rooms, rest areas, restaurants, recreation rooms, and various recreational facilities such as shops. Deploy. In addition, gym equipment with physical education equipment may be added.

On one side of the main body 2 where the beach 3 is not provided, a berthing facility 6 is provided for passage to and from the nearest land. Docking equipment 6
The main body 2 may be equipped with usual berthing equipment mainly for the quay which adjusts the height between the upper surface and the water surface.

It is good to provide a sports facility on the upper surface of the main body 2. An example thereof is a slide 41 from the top of the main body 2 to the surface of the water, a dive platform 42 from the step 33, etc., and a fishing ground 43 can be provided on the remaining sides other than the above three sides.

A facility using the structure can be provided inside the main body 2. First, a water tank for water on the island is necessary, and the capacity can be reduced by installing seawater desalination equipment. Similarly, barge equipment on the barge can be used to provide an indoor pool associated with the external water surface,
Furthermore, it is effective to set up an aquarium that allows external water to communicate. Further, by providing a watertight glass window 22 on the underwater portion of the outer wall of the main body 2, the inside can be made into an underwater observatory.

An elevating staircase is provided between the upper surface of the main body 2 and the upper surface of the quay wall of the berthing facility 6 or the upper surface of the nagisa portion 33 to allow passengers to move up and down.

Of the above facilities, the facility for customers is for recreation or other suitable selection, and although not shown individually,
It can be installed due to architectural considerations.

In the structure of the present invention, the solar light receiving facility 5 and the artificial beach 3 are indispensable.

The light receiving equipment 5 includes a light receiving panel 51, a solar cell (not shown), and hot water equipment. That is, solar energy is used as a power generation facility to store electric power in a solar cell and to circulate seawater to obtain hot water on the other hand. The electric power serves as a power source on the artificial island facility and is mainly used for consumption in the building 4. It is also possible to prepare hot water for the heat energy and to provide hot water piping so as to send it to the bottom of the artificial beach of the artificial beach, and one part may be hot water for the pool.

Next, the structure of the artificial beach 31 will be described with reference to FIG. As for the steel structure of the artificial beach 31, a truss 35 having an upper chord member and a lower chord member is assembled, and is connected to the truss 35 at the tip end and the lower part of the rugby portion 33 and other intermediate parts by a girder in an orthogonal direction to form a steel structure as a whole. Form a board. The lower surface of the board is covered with an iron plate 36 via the furring strip, and the upper surface thereof is filled with a filler 37 up to the upper surface of the truss. The filler 37 is most usually made of gravel, or an artificial aggregate for lightweight concrete having a specific gravity of 1.1 or more is also preferable, and forms a water-permeable layer that does not contain sand grains in the whole. do it. A synthetic resin foam or a plate thereof is used as a part of the filling material 37. As shown in an example, the water passage between the aggregates is not blocked and the floating is suppressed by the aggregates. Stagger them. Therefore, the iron plate 36 is appropriately provided with an opening and a net is stretched to prevent the filler 37 from flowing out. The upper surface of the filler 37 may form an artificial seabed with the granules as it is, but it is also synthesized over the upper surface of the truss and the upper surface of the girder to prevent outflow from natural waves and to prevent the bottom of the sea floor from getting caught. A resin non-woven fabric 38 is stretched over. The iron plate 36 and the non-woven fabric 35 are collectively referred to as the lower chord members.

In the present invention, the hot water pipe 52 is piped by using the lower chord member of the truss 35 and the connecting girder member. This hot water pipe 52 is arranged in a meandering manner so that the hot water obtained by the light receiving panel 51 on the building is circulated to the artificial beach bottom through the storage tank in the main body 2,
The heat heats the water-permeable portion inside the artificial beach 31, and thus the seawater above it.

At the outer peripheral portion of the artificial beach 31, a safety fence 32 is set up from the peripheral frame of the truss 35, and a net 39 is stretched around the portion of the fence substantially below the water surface by forming a lattice frame. This net, of course, circulates the seawater inside and outside, but it mainly has the purpose of attenuating the waves of the open sea, preventing the entry of jellyfish and other marine products, and preventing the outflow of personal belongings of bathers. is doing. A sign indicating the boundary of the sea bathing area is provided on the upper surface of the safety fence 32. When the buoy 34 is attached here, buoyancy is given to the tip of the truss 35, so that the function of supplementing the support of the structure which is underwater and has a reduced weight can be combined with the function of the sign.

A truss 35 is formed on the main body 3 side of the artificial beach 3.
A low step portion made of reinforced concrete is provided in the shape of a tank by connecting to the main body 2 by using the node of, and the inside is filled with natural sand. This area is suitable for children's sand play and sunbathing, and can be used in the same way as a natural beach. In addition, a beach for children having a shallower depth can be specially provided in the sea following the nagisa 33, for example, a section 44 as shown in FIG. 1 (2).

The other embodiment shown in FIG. 2 is similar to that of FIG.
The difference is that the main body 2A of the facility is constructed in the form of a self-elevating platform, and the construction of the artificial beach 31A is a series of slopes from the base end to the tip. In this artificial beach, the upper chords of the truss 35A are lowered at a slope on the undersea side so that the base end nagisa 33 is naturally submerged in the sea from the surface of the sea, so that a natural beach shape can be obtained. The waves from offshore break on the beach to reveal the beach.

Here, the facility main body 2A is provided with spuds 23 vertically penetrating the main body 2 at least at four corners, and is moved up and down relatively with respect to the main body 2A.
Make A support in the sea. As power for raising and lowering the spud 23, a separately installed hydraulic system or electric power obtained by diesel in-house power generation is used to provide heavy equipment as an artificial island facility. Of course, such a means for connecting to the seabed is an alternative to the mooring line 21, and the combination with the artificial beaches 31 and 31A can be either horizontal type or inclined type.

The bottoming type self-propelled platform 2A itself is known as SEP as described above. However, it has never been adopted as the main body of this artificial island facility. However, since it is not suitable for finely controlling the lifting operation, the height relationship between the artificial beach 31, 31A and the tide level does not depend on the spud 23, and the artificial beach 31, 3
It is desirable that 1A can be raised and lowered with respect to the main body 2A to secure a water depth suitable for a sea bath. For that truss 3
The coupling between the base end portions of the 5,35A and the main body 2A can be configured to be movable up and down. The means is truss 35, 35A
It is possible to change the slope of the entire truss by rotatably supporting the upper end portion of the upper chord member on a horizontal axis and providing an expansion / contraction device between the base end portion of the lower chord member and the main body 2A. Also,
A screw rod is vertically provided on the main body 2A side, the upper and lower base end portions of the trusses 35, 35A are screwed together, or the reverse configuration is adopted.
The artificial beaches 31 and 31A can be horizontally moved up and down from the base end by rotating the screw rod.

Action The action of the present invention will be described based on the operation and usage of the artificial island facility.

Installation of the entire artificial island 1 is performed in the same manner as installation of an arbitrary barge or cep, and installation and movement at the offshore position of the main bodies 2 and 2A are possible.

Next, attach the berthing equipment 6 or attach it in advance,
Landing the equipment and materials, and building 2 with 2A as the base
And construct an artificial beach 3. Then, the required facilities shown in the configuration of the embodiment are installed and equipped to complete the artificial island facility.

Above all, the solar energy receiving facility 5 is essential in the present invention together with the artificial beach 3. Light receiving equipment 5
As for the above, a solar cell is configured by the light receiving panel 51 installed on the roof of the building 4, and electric power is generated by solar power generation from the whole sky without obstruction to light reception.
Store electricity in the solar cell. This power will be supplied to meet the demand of the facilities on the island.

On the other hand, the other part of the light receiving panel 51 receives heat energy, constitutes a hot water production facility using circulating water as a medium, and stores the hot water in a hot water tank.
Through, the seawater in the site is heated from the bottom of the artificial beach 31. Offshore seawater is considerably colder than seawater near the coast, so it is not suitable for bathing. Here, the artificial beach 31 is filled with a water-permeable material 37
Therefore, the permeated water heated by the hot water pipe 52 rises in the artificial beach 31 and brings the seawater in the beach to a comfortable temperature like a natural beach. By guiding a part of the warm water to the pool, it will improve the utilization rate except in summer and in bad weather.

The artificial beach 31 is provided with a safety fence 32 on the outer periphery, has a safety sign 34, and has a protective net 39 stretched. In addition, the water depth will not be more than 2 m, and the structure of the seabed will be smooth and will not cause unexpected depth.

The structure of the artificial beach 31 is of the same order of magnitude as the main bodies 2 and 2a, and projects 30 m or more in the offshore direction. This structure is made of steel and forms a board, but since it is mostly held in water, it need not be so rigid. Further, by mixing a synthetic resin foam as the filler 37, these are distributed in the board,
Buoyancy can be positively obtained by arranging the aggregate such as an aggregate in a partition layer so as not to block the water passage. Further, a buoy provided on the outer peripheral portion also supplements the support of the tip portion of the cantilever structure. The above description was made for the artificial beach 31, but the same applies to the artificial beach 31a.

Since the facilities 2 and 2A can obtain large ones due to the recent technological advances in offshore structures, the facilities on the artificial island 1 can be completed to the same level as the living environment on the remote island. If this is selected and configured mainly for recreation and recreation, a recreation base equivalent to an onshore facility can be formed. In particular, securing electricity and water for daily necessities gives great freedom in the organization and scale of various facilities. Since the usage pattern of each facility is clear from the above-mentioned configuration, no particular explanation is required.

EFFECTS OF THE INVENTION The present invention is an artificial island facility provided with an artificial beach formed by forming an artificial beach composed of a water-permeable layer as described above,
A movable artificial beach will be obtained, providing a good new recreation base.

Further, since the artificial beach has an artificial beach composed of a water-permeable layer in which a steel-structured shelf-like board is filled with a filler, it can be used like a natural beach.

Further, since the filling material is sandwiched between the open iron plate provided on the lower surface of the board and the non-woven fabric provided on the upper surface, the filling material is prevented from flowing out against natural waves, and moreover the water flow between the aggregates is secured. It Therefore, even when a hot water pipe is piped from the hot water facility to the bottom of the artificial beach, the permeated water heated by the hot water pipe flows upward and the clear seawater offshore can be kept at a comfortable temperature.

Furthermore, when a synthetic resin foam is mixed as the filler, the artificial beach can be constructed so as to have buoyancy, and the structural members do not become overly heavy.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 shows an outline of an artificial island facility of the present invention, (1) is a side view,
(2) FIG. 2 is a plan view, FIGS. 2 (1) and (2) are side views and plan views of another embodiment, and FIG. 3 is a vertical cross-sectional view for explaining the artificial beach in detail. is there. 1 artificial island facility, 2, 2A facility main body, 3 artificial beach, 4 building, 5 light receiving equipment, 6 berthing equipment, 21,23 connection means, 31, 31A artificial beach, 32 safety fence, 33 steps, Nagisa part, 34 sign, buoy, 35, 35A truss, 36 iron plate, 37 filling material, 38 non-woven fabric, 39 protection net, 51 light receiving panel, 52 hot water pipe.

Claims (4)

[Claims] 1. A floating and sinking type facility body (2,2) comprising a reinforced concrete box having means (21,23) for connecting to the seabed.
A) and an artificial beach (3) continuously extended from the side to the outside along the sea surface, and the artificial beach (3) is on the upper surface except its base end (33). Is held below the sea level and is composed of a steel-structured shelf (35, 35A) having a safety fence (32) on the outer periphery of the tip, and the lower surface of the board (35, 35A). An iron plate (36) with an appropriate opening is placed on it, and a filling material (37) is filled and a non-woven fabric (38) is stretched on the upper surface to form an artificial beach (31, 31A) consisting of a water-permeable layer. An artificial island facility characterized by 2. A light receiving facility (5) is provided on the facility body (2, 2A), and the light receiving facility (5) includes a power generation facility including a light receiving panel (51) for solar light and a solar cell, and a light receiving panel ( The artificial island facility according to claim 1, which is a hot water production facility including 51) and a hot water tank. 3. The artificial island facility according to claim 2, wherein a hot water pipe (52) is provided from a hot water production facility inside the lower surface of the artificial beach (31, 31A). 4. The layer forming the artificial beach (31, 31A) is a filler.
The artificial island facility according to claim 1, wherein a part of (37) contains a synthetic resin foam without blocking water permeability.