JP4120988B2 - Double beam type mooring device and floating facility and floating pier type driftwood retaining device equipped with this mooring device - Google Patents

Description

  The present invention relates to a mooring device composed of two upper and lower beams, a floating facility equipped with the mooring device, and a floating pier type driftwood stop device.

  Floating facilities such as floating piers and ship landings, water intake facilities, driftwood stoppers installed in front of gates, and various other floating facilities are equipped with various forms of floating structures. Floats on the surface of the water to perform their functions.

  For example, levitation structures of levitation facilities such as floating piers and ship landings are usually moored on the revetment by mooring devices. In addition, in front of dam intakes and other water intake facilities and other gates, driftwood floating facilities called nets are installed to prevent driftwood floating on the water surface and dust from flowing into the water intakes. However, the floating structure of this facility is usually moored on the revetment by a mooring device.

  In mooring the floating structure of such a floating facility to the revetment, conventionally, a guide rail is attached to the revetment and the floating structure can be slid along the guide rail. However, a floating structure could not be moored on the revetment where the guide rail cannot be attached.

In order to moor a floating structure on such a revetment, a mooring device has been developed in which one end of each of the left and right beams is hinged to the revetment and the other end is hinged to the floating structure. (For example, refer to Patent Document 1).
JP-A-3-125706

  However, in this case, since the floating structure is moored by the left and right beams, the floating structure is likely to tilt, and it is necessary to take a sufficient width of the floating body portion in order to stabilize the floating structure at the time of floating. there were.

  In general, the floating structure is unstable due to waves, the weight of the worker, the load applied to the floating structure, or in the case of a dam intake or other water intake equipment. Often becomes.

  The levitation stability of a levitation structure is usually determined by the fact that the levitation structure tilts due to the rotational moment of water flow resistance and the load applied to the levitation structure, and the float sinks with it. Is ensured by acting as an opposite moment. Therefore, in order for the floating structure to maintain stability, a width sufficient to generate a restoring force must be ensured, and if it is less than that width, it naturally has a defect in terms of stability. .

  As described above, various factors can be cited as factors for keeping the floating structure stable at the time of levitation. In the present invention, this is achieved with a mechanism that is as simple as possible and with a minimum necessary width. The inclination is forcibly suppressed and sufficient stability can be secured.

To achieve the above object, the present invention, the both end portions of the upper and lower beams, and a hinge for the hinge and the vertical axis to pivot the axis of the horizontal direction and pivot respectively, at both ends Use a double beam mooring device with equal upper and lower hinge spacing.
According to this mooring device, the upper and lower beams are always kept in parallel, so that the inclination of the floating structure can be forcibly suppressed and the stability can be made more reliable, as well as improving safety. Can do.
If the floating structure is moored using this mooring device, the two upper and lower beams can be kept parallel to follow the fluctuation of the water level while keeping the floating structure always in a horizontal state. Therefore, the inclination of the floating structure is forcibly suppressed even with the minimum necessary width, not only ensuring sufficient stability of the floating structure, but also in the lateral direction to the floating structure moored by this mooring device. Even if a large force is applied, it can withstand it sufficiently .

In the present invention, a floating facility can be constructed very easily by hinge-connecting one end of the double beam mooring device described above to the revetment side and the other end to the floating structure side.
This levitation facility is able to follow fluctuations in the water level while being always level by the upper and lower beams that are always kept parallel, so that the inclination of the levitation facility is forcibly suppressed and has sufficient stability. Therefore, the levitation facility itself can be reduced to a necessary minimum width, so that not only the levitation facility becomes an economical facility but also the construction cost can be reduced.

Further, according to the present invention, the floating pier type driftwood stopping device can be constructed very easily by arranging the above-described floating facility in front of the water facility or the gate.
This floating jetty driftwood system can follow the fluctuations of the water level while always keeping the horizontal beam by the upper and lower beams that are always parallel, so that the tilt of the floating jetty type driftwood system is forcibly suppressed and has sufficient stability. Have. Therefore, maintenance and inspection work of the dam intake and gate can be performed safely and accurately by using this floating jetty type driftwood stopper.
If the water intake facility or gate is not long, a single floating facility can be used, but if the water intake facility or gate is long, multiple floating facilities are connected and placed in front of the water intake facility or gate. It is desirable to do.

According to the mooring device of the first aspect, not only the stability of the floating structure can be made more reliable, but also the safety can be improved.
And if the floating structure is moored using this mooring device, the upper and lower two beams are always kept parallel, and the floating structure can be kept in a horizontal state to follow the fluctuation of the water level. in width of the limited inclination of the floating structure is forcibly pressed, sufficient not only stability is ensured, a large force from the lateral direction to the floating structure that is anchored by the anchoring device of the floating structure is Even if it is hung, it can withstand it sufficiently .

According to the levitation facility according to claim 2, since the two horizontal beams that are constantly parallel can always follow the fluctuation of the water level while maintaining the level, the inclination of the levitation facility is forcibly suppressed and sufficient stability is achieved. Therefore, the levitation facility itself can be reduced to the minimum necessary width, so that it becomes not only an economical facility, but also can contribute to reduction of construction costs.

According to the floating pier type driftwood stop device according to claim 3, the inclination of the floating pier type driftwood stop device is compulsory because it is possible to follow the fluctuation of the water level while always keeping the horizontal by the two beams which are always kept parallel. It is suppressed and has sufficient stability, and maintenance and inspection work for dam intakes and gates can be performed safely and accurately using this floating jetty driftwood stop.

The most preferred embodiment of the present invention will be described in detail with reference to the drawings.
As is apparent from FIG. 1 showing the principle, the double beam type mooring device has hinges 3 and 3 having pivots about at least a horizontal axis 3a at both ends of two upper and lower beams 1 and 2 having the same length. And the vertical distance between the upper and lower hinges 3 and 3 at both ends is the same for both the left and right sides. And the double beam type mooring apparatus A comprised in this way is used as a mooring apparatus of the floating structure C (refer FIGS. 2-4).

According to this mooring device, as shown in FIGS. 3 (a), (b), and (c), the upper and lower beams 1 and 2 having the same length are always kept in parallel. Not only can the inclination be forced and the stability of the floating structure C can be made more reliable, but also the safety can be improved.
When the floating structure C is moored using the mooring device A, the upper and lower beams 1 and 2 having the same length are always kept parallel to each other, and (a), (b) and (c) in FIG. As shown in FIG. 4, the floating structure C can be made to follow the fluctuation of the water level while always being kept in a horizontal state. Therefore, the inclination of the floating structure C is forcibly suppressed even with the minimum necessary width, and sufficient stability of the floating structure C is ensured.
FIG. 3 (a) shows other abnormal high water levels during floods, FIG. 3 (b) shows high water levels, and FIG. 3 (c) shows low water levels.

  Also, as shown in FIGS. 2 and 3, the double beam mooring device A has one end portion connected to the revetment side B and the other end portion connected to the floating structure C side so that Easy to build. In FIG. 3, four sides formed by two upper and lower beams 1, 2 having the same length and two connecting rods 5, 5 having the same length connecting the beams 1, 2 at the same side end. A double beam type mooring apparatus A is constituted by the shaped link mechanism. A connecting portion by a hinge having a horizontal axis 3a as a pivot is indicated by reference numeral 3 in FIG.

  As shown in FIGS. 3 (a), 3 (b) and 3 (c), this levitation facility has two beams 1 and 2 of the same length and two beams 1 and 2 of the same length that are always kept parallel. Because the quadrilateral link mechanism formed by two connecting rods 5 and 5 of the same length that are connected to each other at the section can always follow the fluctuation of the water level while maintaining the level, the inclination of the floating facility is forced It is suppressed and has sufficient stability. Therefore, the levitation facility itself can be reduced to a necessary minimum width, so that not only the levitation facility becomes an economical facility but also the construction cost can be reduced.

  A quadrilateral-type link mechanism formed by two upper and lower beams 1 and 2 having the same length and two connecting rods 5 and 5 having the same length for connecting both beams 1 and 2 at the same side end. Since the upper and lower hinges 3 and 3 are interlocked by the connecting rod 5, the upper and lower hinges A even if the angle of the two upper and lower beams 1 and 2 changes depending on the water level. The positions 3 and 3 are always kept vertical. Accordingly, the floating structure C or the deck surface of the floating facility is also kept horizontal.

The double beam type mooring apparatus A shown here has hinges 4 and 4 having a vertical axis 4a as a pivot in addition to the hinges 3 and 3 having a horizontal axis 3a as a pivot. That is, as shown in FIG. 4, hinges 4 having a vertical axis 4a as a pivot are respectively connected to the outsides of hinges 3 and 3 positioned at both ends of upper and lower beams 1 and 2 having the same length. It is.
When a mooring device having hinges 4 and 4 having a vertical axis 4a as a pivot is used, even if a large force is applied from the lateral direction to the floating structure C moored by the mooring device, the upper and lower 2 The floating structure C can be moved in the direction indicated by the arrow in FIG. 4 about the vertical axes 4a and 4a of the two hinges 4 and 4. Therefore, it can sufficiently withstand the external force applied in the lateral direction. In this case, it is preferable to attach a wire rope or other mooring tool c to the floating structure C to keep the floating structure C from being pulled.

  In the case shown in FIG.3 and FIG.4, in the revetment side B, the upper and lower two attachment arms 6 and 6 are made to extend horizontally from the revetment B as a pair of left and right, and the attachment member 7 is attached to their tips. The two ends of the double beam mooring device A are connected by connecting the hinges 4 and 4 with the vertical axis 4a as the pivot at the two upper and lower portions of the connecting reed 5 on the revetment B side. The left end) is attached to the revetment B.

  On the other hand, on the floating structure C side, as shown in FIG. 4, vertical two places on the top and bottom of the attachment member 8 attached to the floating structure C and two places on the top and bottom of the connecting rod 5 on the floating structure C side. The floating structure C is attached to one end portion (the right end portion in FIG. 3) of the double beam mooring device A by connecting the hinges 4 and 4 with the direction axis 4a as a pivot.

  In addition, when a large force is not applied to the installed floating structure C, the beam of only the hinges 3 and 3 having the horizontal axis 3a as the pivot is sufficient, but the installed floating structure When a large force is applied to C from the lateral direction, it cannot be dealt with by a beam of only the hinges 3 and 3 having the horizontal axis 3a as a pivot. Therefore, in the case illustrated here, the hinges 4 having the vertical axis 4a as the pivot are respectively connected to the outsides of the hinges 3 and 3 positioned at both ends of the upper and lower beams 1 and 2 having the same length. When a large force is applied to the floating structure C moored by the mooring device from the lateral direction, the floating structure C is centered on the vertical axes 4a and 4a of the upper and lower hinges 4 and 4 as shown in FIG. It can be moved in the direction indicated by the arrow, and can sufficiently withstand the external force applied in the lateral direction.

By placing such a floating facility in front of the water facility or the gate, the floating pier type driftwood stopping device D can be constructed very easily. This floating pier type driftwood stop device D is for preventing driftwood, dust and the like from flowing into the water intake 9 and the gate in front of the floating pier.
If the intake facility or gate is not long, it can be handled by one floating facility, but if the intake facility or gate is long, for example, as shown in FIG. Alternatively, the floating pier type driftwood stopper D can be constructed very easily by arranging it in front of the gate.

  This floating pier type driftwood stop device D has two connecting rods of the same length that connect the upper and lower beams 1 and 2 of the same length, which are always kept parallel, and the beams 1 and 2 at the same side end. With the quadrilateral link mechanism formed by Nos. 5 and 5, it is possible to follow fluctuations in the water level while maintaining the level at all times, so that the inclination of the floating bridge type driftwood stopper is forcibly suppressed and has sufficient stability. ing. Therefore, maintenance and inspection work of the dam intake 9 and the gate can be performed safely and accurately by using this floating jetty type driftwood stopper D.

  For a plurality of long floating structures C, C or a floating facility connected to each other, for example, an upstream side which is the left side in FIG. 2 and a downstream side which is the right side in FIG. By arranging the double beam mooring devices A and A at the three portions, the floating structure C or the floating facility that is long in the lateral direction can be stably moored on the front surface of the water inlet 9.

  The levitation structure C or the levitation facility has buoyancy for levitation. By attaching a buoyancy body to the levitation structure C or levitation facility, buoyancy can be imparted to the levitation structure C or levitation facility. Further, the floating structure C or the floating facility may be a hollow secret structure made of steel or the like, and the buoyancy may be imparted to the floating structure C or the floating facility by making the drainage volume larger than the weight.

  In the above case, the floating pier type driftwood stop device D is described as an example of the case where the floating jetty type driftwood stop device D is arranged in front of the intake port 9 which is a water supply facility. It can also be applied to the case where it is placed in front of the gate so that driftwood, dust, etc. do not flow into this gate.

It is the schematic for demonstrating the basic principle of the double beam type mooring apparatus by this invention. It is a top view which shows an example of the floating jetty type driftwood stop apparatus constructed | assembled by arrange | positioning the floating structure thru | or the floating facility moored by the double beam type mooring device by this invention in front of the water intake of a water intake equipment. FIG. 3 is an enlarged side view of the floating pier type driftwood stop facility shown in FIG. 2. It is a top view which expands and shows the state where one end of the double beam type mooring apparatus by this invention was attached to the revetment, and the floating structure was attached to the other end.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1, 2 ... Beam, 3 ... Hinge, 3a ... Horizontal axis, 4 ... Hinge, 4a ... Vertical axis, 5 ... Connecting rod, A ... Double beam type mooring device, B ... Seawall, C ... Floating structure , D: Floating pier type driftwood stopper.

Claims (3)

At both ends of the upper and lower beams, and a hinge for the hinge and the vertical axis to pivot the axis of the horizontal direction and pivot respectively, characterized in that equal the upper and lower hinge spacing in both end portions Double beam mooring device. Comprising a double-beam type mooring device according to claim 1 Symbol mounting, one end portion of the anchoring device on the revetment side, flotation facility, characterized in that both hinged and the other end to the floating structure side. A floating pier type driftwood stop device, wherein the floating facility according to claim 2 is disposed in front of a water supply device or a gate.

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