JPS60203720A - Marine observation tower - Google Patents

Abstract

PURPOSE:To enable a marine observation tower to be arranged at a selected area, by a method wherein a semi-floating marine observation tower which is pivotally supported to the point freely rocking on the sea-bottom base is captively held on the sea-bottom with a plurality of mooring cables. CONSTITUTION:A mooring base 7 is fixed on the sea-bottom with piles 8, and a semi-floating marine observation tower 1 is supported to the point freely rocking via a universal joint 6 on the base 7 and is captively held on the sea-bottom 22 with a plurality of mooring lines 9. An upper column 2, a rest-house 15 and others located above the sea level 20 are connected to the ground level with a walking bridge 16 or a floating pier. Thus, a marine observation tower with good workability and without defining a construction-feasible water area can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an underwater observation tower for marine leisure, and more particularly to a semi-floating moored underwater observation tower.

The conventional Wrj +t+ j<9 tower is a structure that is placed on the bottom of the coastline, and has the following problems.

(1) Since it is a bottom-mounted type, ground improvement work is required as much as fI, which requires a large amount of cost and time.

(2) Seismic countermeasures are strictly required.

(3) Installation depth and location are quite limited.

In areas where the water is extremely deep, it is impossible to achieve economic success.

(4) For this reason, only 1lti meso-organisms can be observed at relatively shallow depths along the Jhi shoreline.

(5) -・μ Once installed, it cannot be moved and therefore cannot be maintained or repaired by docking. Therefore, the initial investment required for durability is large.

The object of the present invention is to provide an underwater IN watchtower that overcomes several of the drawbacks listed in -1-. Without,
It provides 11 underwater towers (9 towers) where you can observe and view the life of marine life offshore.

The gist of the present invention is to achieve the above objective (1) by connecting the mooring foundation to a mooring foundation installed on the seabed in a swingable manner, and
A special 111j-'<9 tower is characterized by consisting of a semi-floating body held in position in the sea by a plurality of mooring lines.

Hereinafter, the configuration of the present invention will be explained using IA.

Figure 1 shows the case where the water is relatively shallow and it is installed near the coastline. , FIG. 2 shows an embodiment where the system is installed offshore in relatively deep water.

As shown in Fig. 1, the observation tower 1 in ill+j is
Rest house above +i2015.11jj20
Comparison of 81) minutes (+'I width m side 1 side circular book 1. shape j,, ``?Ii column 2, that g) I + 21 in 3
A buoyancy tank 3 consisting of a conical and cylindrical interlocking shape located at the part of the tank 3, a buoyancy tank 3 provided on the side thereof, and an inner rod or circle, 11
It consists of a type 1 leg column 5, and the top end is connected to the universal joint 6 (it is connected to the base 7 so that it can be terminated at will, and is generally connected to the base 7 due to buoyancy). ,
The buoyancy tanks 3a and 3j are moored in a plurality of directions with a plurality of mooring lines 9, and are held so as not to tilt forward and backward and left and right.

! The f-katank 3 serves as an underwater observation room and is equipped with a large number of observation windows 14. The rest house 15 and the buoyancy tank 3 are partially connected by the column 2. Since the upper column 2 moves horizontally on the sea surface, in order to reduce the influence of waves on the underwater observation tower 1, it is designed so that its section II'i1 product is made as small as possible.

Access to the underwater observation deck 1 is via the pier 16 that spans from land-1 to the underwater observation room (buoyancy tank) 3 in the middle observation tower 1. Enter through the internal spiral staircase 13.

The mooring base 7, which movably anchors the end of the leg column 50, is identified on the seabed by, for example, a pile 8 driven into the seabed. Mooring base 7 is different from conventional underwater IYC watchtowers in that it is easy to construct (the foundation is 1/1).

Conventional) i-bottom type W + j medium 14 (in the case of 9 towers, installation Wt seabed ground improvement - [small is required, but in this example, installation of the mooring base 7 and driving of the anchor pile 12 L2,! Only ls is required, and ilz is greatly simplified to the bottom.

The tip of the mooring gin 9 is fixed to an anchor pile 12 driven into the seabed, and the other end is in the seabed':f! k
711j through fairlead 10, which was interrogated by l.
It is anchored at line 7 tompa 11 on the surface. This root [mooring line in place of tome] part of cola 1.2-1'
: It is also possible to wind it up on a winch (not shown) that is installed in the same place.

'Jjrj middle observation tower 1 has lgamma tank 3 itself, harast tank 4 in F part and / in leg column 5.
By submerging the Hetest in water, even without the mooring line 9, it does not fall down in the Ihi and is stable due to the force that always tries to stand upright. However, without mooring line 9,
Due to external forces such as wind, currents, waves, etc., the universal joint part 6 is tilted until it is balanced. The mooring line 9 is provided in a shape that restrains this inclination.

The underwater jJ of the present invention (9 towers 1 can be repaired by entering the tank, or can be moved to other water areas and used as an il)
In such a case, remove the mooring line 9 and
This can be easily done by separating the underwater expansion Q1 tower from the mooring base 7 at the salient point 6.

FIG. 2 shows another embodiment of the present invention when installed offshore, and transportation is carried out by ferry using a floating pier 19.

In the embodiment shown in Fig. 2, the mooring base 7J is fixed to the seabed by its own weight without pile driving, and the mooring line also uses a holding type anchor with anchor pile driving.
Of course, such a structure may be adopted in the relatively shallow water area shown in FIG.

In addition, it is preferable that the cross-sectional area of the upper column 2 is made as small as possible than the cross-sectional area of the buoyancy tank in the underwater part, so that the upper column 2 has a structure that minimizes the shaking force caused by waves.
It is preferable that the vessel be equipped with 9 moorings, elevating people and others, power transmission, ventilation, water supply and collection, and other necessary facilities, and have the minimum structurally allowable cross section.

The present invention is not the conventional J-weibu, but the floating mooring type 11
(1) Submarine ground improvement [: small, a large amount of conventional equipment for earthquake prevention etc.
- Costs that were previously required will be significantly reduced.

(2) It is economically viable. Since the depth of water that can be installed is deeper than before, the water area where it can be installed is expanded to 1'i+i.

(3) For this reason, it is now possible to see offshore marine life that was previously impossible to see. or spread.

(4) 71υ base +: +B decreases, so ′j to the environment
-Less negative impact.

(5) Because it is a movement III function! - Twin-in repair?
If it is functional and at the same time in operation, the transfer use to the survey area is 1
It is a Noh play.

[Brief explanation of the drawing]

51 and 2 are side views of the embodiment of the present invention, respectively. l...'l1ri middle observation tower 2...upper column 3.
・・Seaside tank (JIii middle observation deck) 4・・Palast tank 5・Leg column 6・Universal joint 7・Mooring base 8・Pile 9・Mooring line 10・・・Fairita 1]...
・Line Stomper 12... Anchor pile 13... Spiral staircase 14... Observation window 15... Rest house 16... Crossing pier 19... Floating pier 20
...'IM page 21...11+j Applicant Mitsui Engineering & Shipbuilding Co., Ltd. Agent Patent attorney Yoshio Kosugi B1 Physician Kazunori Saito

Claims (1)

[Scope of Claims] l A mooring foundation installed at the bottom of the Wrj is swingably connected to the mooring foundation,
An underwater IA watchtower characterized by comprising a semi-floating body held in position underwater by a plurality of mooring cables. 2. The semi-17M type &Ir according to claim 1, in which the cross-sectional area of the lhi surface is smaller than the cross-sectional area of the underwater part.
J Middle M Watchtower.