JP2013044085A - Underwater foundation and installation method for underwater foundation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an underwater foundation and an installation method thereof, by which a relatively small-scaled appliance, facility, or the like used underwater, for example, a flowing-water utilizing micro hydroelectric power generation apparatus can be easily underwater installed, even under environment of a flowing-water state such as a river.SOLUTION: In an underwater foundation having fixing means for fixing an appliance or facility 2 used underwater in a river and the like and an installation method thereof, the underwater foundation has a floor panel 11 consisting of a concrete board or steel frame structure board on which the appliance or facility 2 is mounted; a belt-like elastic member 12 is provided around a lower part of the floor panel 11; a bored part 14 with a bore hole bored in a water bottom ground 4 is provided below near each of at least four corners of the floor panel 11; rod-like or tubular reinforcement members 15 are disposed in the bored parts 14, respectively; and a fluid material 16 which can be hardened underwater is injected into and solidified, hardened, and integrated with clearances of the bored parts 14 and a clearance enclosed with the floor panel 11 and the belt-like elastic member 12 together, thus enabling the floor panel 11 to be fixed to the water bottom ground 4.

Description

  The present invention relates to an underwater foundation for installing a device or equipment used underwater in a river or the like underwater, and a method for installing the same. The present invention relates to an underwater foundation for fixing an apparatus for use in a mountain stream or the like and an installation method thereof.

In recent years, due to the problem of depletion of buried fossil fuel resources and the problem of deterioration of the global environment due to carbon dioxide emitted by combustion, etc., utilization technologies such as hydropower, wind power, and solar energy, which are environmentally friendly natural energy, have attracted attention. It is coming. However, with regard to the use of hydropower, water turbines and small-scale hydropower generation have been used in many places until 1950s. And small-scale hydroelectric power generation almost disappeared. Even in recent years when environmentally friendly natural energy is attracting attention, small-scale hydropower generation such as micro-hydropower generation using flowing water is not only ignored, but there are almost no subsidies and so on. Since small-scale hydroelectric power generation such as micro hydropower generation using flowing water is limited, the installation location of the power generation device is limited, but it is possible to generate power continuously day and night in a suitable location, and the annual power generation efficiency About 90% can be expected. From the viewpoint of annual power generation operation efficiency, in general, it is overwhelmingly more efficient than 20% of wind power generation and 10% of solar power generation. At present, the level of recognition as the use of natural energy is lower than the use of wind power or solar energy.
In order to break through the present situation, the inventors of the present application acquired a patent related to micro hydropower generation using flowing water such as Japanese Patent No. 4653036 and Japanese Patent Application Laid-Open No. 2010-031791, etc. We also made an eye for practical use as a device that uses flowing water.
However, it is necessary to establish a practical device that can use flowing water, such as river streams, in order to instill awareness that the technology of micro hydro power generation using flowing water is useful.
However, in order to establish a practical device that can use flowing water such as river streams, the device must be able to be fixed in water even under flowing conditions such as river streams.

However, conventional underwater foundation technologies are mostly underwater foundation technologies such as large-scale bridges as proposed in Patent Document 1, Patent Document 2, Patent Document 3, and the like. As an underwater foundation for anchoring underwater such as a relatively small device used underwater such as a micro hydroelectric power generation apparatus, it is difficult to use the technology of the above-mentioned underwater foundation such as a large bridge.
However, the above-mentioned micro hydroelectric generator using flowing water needs to be fixed in water even in an environment of flowing water.

  For this reason, underwater foundations and their installation that can be easily installed underwater in relatively small-scale devices and equipment used in rivers, etc. even in flowing water environments. Proposal of a method is desired.

JP 2004-0441115 A JP 2006-090131 A JP-A-2005-030132

  The problem to be solved by the present invention is that, for example, a relatively small device or facility used in water, such as a micro hydroelectric power generation device using flowing water, can be put into water even in a flowing water environment such as a river. It is in providing the underwater foundation which can be fixed easily, and its installation method.

  In order to solve the above-mentioned problems, the underwater foundation of the present invention is an underwater foundation fixed to a submerged ground having a fixing means for fixing a device or equipment used in water such as a river in water, It has a floor board made of a concrete board or steel structure board or the like on which the apparatus or equipment is mounted, and a belt-like elastic member is attached around the lower part of the floor board, and a lower part near at least four corners of the floor board And has a perforated portion having a perforated portion drilled in it, and a rod-like or tubular reinforcing member is disposed in the perforated portion, and is surrounded by the void portion of the perforated portion, the floor, the belt-like elastic member, and the bottom of the ground. The main feature is that the fluidized material that can be cured in water is injected into the void, solidified, cured, and integrated so that the floor can be fixed to the bottom ground.

  In addition, the fixing means lowers the apparatus or equipment into the water by using a bar-like or tubular guide member arranged and fixed so as to stand upright from the floor in the vicinity of the four corners of the floor. It is characterized in that it can be fixed at the position.

    And the installation method of the underwater foundation of the present invention is any one of the above-mentioned underwater foundation installation methods, and as a temporary construction for installing the underwater foundation, The floorboard can be temporarily placed and held, and the floorboard is kept at a predetermined position in water by using a temporary frame having a floorboard arrangement means that can be lowered and held at a predetermined position. , Drilling the bottom ground near at least the four corners of the floor, inserting a rod-like or tubular reinforcing member into the perforated part, and then inserting the void in the perforated part, the floor, the belt-like elastic member, and the bottom ground The most important feature is that a fluid material capable of being cured in water is injected into the void surrounded by solidification, solidified and cured, and integrated so that the floor can be fixed to the bottom ground.

  In addition, the temporary frame has a level adjusting means capable of adjusting the level of the frame itself.

  According to the submerged foundation and the submerged foundation installation method of the present invention, it becomes possible to easily fix a relatively small apparatus or facility used in the water even in a flowing water environment such as a river. .

  For this reason, for example, as shown in FIGS. 5 to 7, since a micro hydroelectric generator using flowing water can be easily fixed in water even in a flowing water environment such as a river, the conventional dam system To increase hydropower generation using hydropower, which is environmentally friendly natural energy, without causing sediment problems due to dams and sediments such as large-scale hydropower generation in the country and problems of natural environment destruction due to dam construction In recent years, we can contribute to the improvement of the problem of depletion of buried fossil fuel resources and the deterioration of the global environment due to carbon dioxide emitted by combustion, etc., through the use of flowing water micro hydroelectric generators. It becomes like.

It is explanatory drawing of one Example explaining the underwater foundation of this invention, (a) is a top view, (b) is an elevational sectional view. It is explanatory drawing of one Example explaining the installation method of this invention, (c) is a top view, (d) is a plane sectional view. FIG. 3 is a side view of the example of FIG. 2. FIG. 3 is a front view of the example of FIG. 2. BRIEF DESCRIPTION OF THE DRAWINGS It is explanatory drawing of one Example using the underwater foundation of this invention as an underwater foundation of a flowing water utilization type | mold micro hydroelectric power generator, (e) is a top view, (f) is a plane sectional drawing. FIG. 6 is a side view of the example of FIG. 5. It is a front view of the example of FIG.

Embodiments of the underwater working foundation and the underwater foundation method of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the underwater foundation 1 of the present invention is an underwater foundation fixed to a submarine ground 4 having fixing means for fixing a device or equipment 2 used in water such as a river in water. The main part has a floor board 11 made of a concrete board or a steel structure board or the like on which a device or equipment 2 to be used in water is placed, and the underwater curable fluid 16 is leaked around the lower part of the floor board 11. A belt-like elastic member 12 for restraining is provided, and a through hole 13 for drilling the bottom of the ground 4 is provided at the lower part of the floor 11 near the four corners. The perforated part 14 has a perforated part 14 and a rod-like or tubular reinforcing member 15 is disposed in the perforated part 14. The gap part of the perforated part 14, the floor 11, the belt-like elastic member 12, and the water bottom ground 4 Underwater hardness in the enclosed void Flowable material 16 injected to solidify and curing was integrated with the floor panel 11 is in the manner can KataSo to the sea bed ground 4.
The fixing means of the apparatus or facility 2 used in water is not limited as long as the apparatus or facility 2 can be fixed. For example, the apparatus or facility 2 is fixed in the vicinity of the four corners of the floor base 11 so as to stand upright from the floor base. By using the provided rod-like or tubular guide member 17 as a guide, the apparatus or equipment 2 is lowered into water so that it can be fixed at a predetermined position.
Further, in order to effectively fill the void with the underwater curable fluid material 16 to be injected, it is easy to drain water from the void surrounded by the floor 11, the belt-like elastic member 12, and the water bottom ground 4. It is preferable that at least one location of the drainage hole 18 and the underwater curable fluid material leakage suppression member 19 for suppressing leakage of the underwater curable fluid material 16 in the drainage hole 18 is appropriately disposed on the floor board 11.

And as shown in FIGS. 2-4, the installation method of the underwater foundation of this invention is temporarily set | placed on the water head position of the position by which the said floor base 11 is arrange | positioned as temporary installation for installing the said underwater foundation 1. As shown in FIG. Using the temporary frame 3 having a floor board disposing means that can be held and lowered and held at a predetermined position, first, the floor board 11 is used by using the floor board temporary receiving member 35 and the like. Temporarily hold it at the top of the water where it will be placed. Next, the floor base 11 is attached to the bottom ground 4 using the floor base elevator 32, the floor base auxiliary tool 33, the floor base guide member A34a, the floor base guide member B34b, and the like. Keep it in place. Then, after adjusting and confirming the arrangement and level of the floor board 11, according to the description of the underwater foundation 1, the through holes 13 for drilling at least near the four corners of the floor board 11 are used as shown in FIG. Then, the water bottom ground 4 is drilled with a drill drill or the like, and a rod-like or tubular reinforcing member 15 is inserted into the drilled portion 14, and then the gap of the drilled portion 14, the floor 11, the belt-like elastic member 12, and the water bottom ground 4. The fluid material 16 that can be cured in water is injected into the void surrounded by and solidified, cured, and integrated so that the floor 11 can be fixed to the water bottom ground 4.
The temporary frame 3 preferably has level adjusting means 36 that can adjust the level of the frame itself.
Hereinafter, what should be specially described for the main parts and members of the device of the present invention will be described.

  Generally, a concrete board or a steel structure board is used as the floor board 11, and a reinforced concrete board is more suitable, but there is no limitation as long as the object of the present invention can be achieved.

  The belt-like elastic member 12 is disposed in order to suppress leakage of the underwater curable fluid 16 to be injected corresponding to gaps or the like that may be caused by unevenness of the bottom ground surface or pebbles, etc. Resin foams such as polyurethane, polystyrene, and ABS are conceivable, but are not limited as long as they are elastic members that can achieve the object of the present invention.

  The rod-like or tubular reinforcing member 15 may be, for example, a steel pipe or a steel rod, and a perforated steel pipe is considered suitable in consideration of the pile effect or the like, but is limited as long as the material can achieve the object of the present invention. Not done.

  The underwater curable fluid 16 may be, for example, an underwater hardened cement mortar in which cement water is mixed with an underwater non-separable admixture and a high-performance water reducing agent, but can be injected and filled into a void and solidified and hardened in water. However, the material is not limited as long as the object of the present invention can be achieved.

  The guide member 17 exhibits its function as a set and a part that can be fitted to the guide member 17 attached to the apparatus or the facility 2. The fitting form of the fitting portion is not limited as long as the object of the present invention can be achieved. The guide member 17 is preferably a tubular member that can also serve as the through hole 13 for drilling and into which a drill part such as a drill can be inserted.

  The underwater curable fluid leakage prevention member 19 is preferably made of a material that can easily leak water to the outside and suppress leakage of only the underwater curable fluid in the gap. For example, a fiber-based member or open cell Although a resin foam member etc. can be considered, if it is a material of the material which can achieve the objective of this invention, it will not be limited.

For example, as shown in FIGS. 2 to 4, the temporary frame 3 is formed of a main frame member 31 whose main part is a vertical member and a horizontal member, and the level adjustment of the floorboard arrangement means and the frame itself The level adjusting means is provided so that the position of the elevator 32 for floor placement of the floor placement means can be moved.
Considering the influence of flowing water, the main frame member 31 preferably has a steel pipe or a square steel pipe. In addition, reinforcing members including diagonal members are appropriately arranged for strength and rigidity reinforcement. The form of the temporary frame 3 is not limited to the above example, and is not limited as long as the frame can achieve the object of the present invention.

  As a floor board arrangement | positioning means, as shown to FIGS. 2-4, for example, as shown in FIGS. 2-4, the floor board arrangement | positioning elevator 32, the floor board arrangement | positioning auxiliary tool 33, and the floor board 11 for assisting planar positioning The floor board disposing means using the floor board arranging guide member A34a, the floor board arranging guide member B34b, and the floor board temporary receiving member 35 for temporarily receiving and holding the floor board 11 on the water surface is exemplified. However, there is no limitation as long as the floor board disposing means can achieve the object of the present invention.

The floor board placement elevator 32 is mainly composed of a main elevator part 32a and a planar movable mechanism part 32b. As the main elevator part 32a, for example, a manual or electric hoist or a chain block is used. As the planar movable mechanism part 32b, for example, a simple overhead crane-like form using a roller function is used, but there is no limitation as long as the object of the present invention can be achieved.
In order to lift and lower the floor board 11, for example, a hole is provided in advance in the side part of the floor board 11, and the floor board arranging auxiliary tool 33 that can be fitted into the hole is used. A method of lifting and lowering at the main elevator part 32a is conceivable, but there is no limitation as long as the object of the present invention can be achieved.

For the floor board placement guide member A34a, it is preferable to use a member that directly guides the floor board 11 in a shape that matches the shape of the corner part using the water-side corners of the floor board 11, It is preferable that the floor board placement guide member B34b guides both sides of the floor board 11 directly above the floor board 11, and the floor board placement guide member A34a, the floor board placement guide. It is preferable that the position of the member B34b can be adjusted.
The floor base temporary receiving member 35 is preferably a square steel pipe, and when the floor base 11 is temporarily received and held, a clog receiving material is used together as a member for preventing the lower elastic band member 12 from being damaged by its own weight. Is done. In addition, a clog-receiving material will not be limited if the objective can be achieved.

As the level adjustment means 36, for example, as shown in FIGS. 2 to 4, a main level adjustment column 36a, a main level adjustment column guide part 36b, and a level adjustment screw attached to four corners of the temporary frame 3 are provided. Level adjustment means composed of a part 36c, a load distribution part 36d, a level adjustment handle 36e, etc. is used. By rotating the level adjustment handle 36e, the level adjustment screwed part 36c removes a nearby column part. The level is adjusted as a whole of the pillars at the four corners of the temporary frame 3 by moving up and down.
The level adjusting means 36 is not limited to the above example, and is not limited as long as the object of the present invention can be achieved.
The load distribution portion 36d is appropriately used in accordance with the scale of the floor 11 and the water bottom ground condition, and it is effective to provide spike-like protrusions on the lower surface of the portion, for example. In some cases, a configuration in which an attachment member that is effective in response to the water bottom ground condition is attached may be used.

  The main objective of the present invention is not only for use in river streams, but also for submerged foundations for underwater installation such as small-scale tidal power generation devices using small-scale straits and small setos in the sea area and the installation method thereof. It can also be applied in the area.

DESCRIPTION OF SYMBOLS 1; Underwater foundation 11; Floor board 12; Strip | belt-shaped elastic member 13; Through hole 14 for drilling | boring a floor board; Perforated part 15; Rod-shaped or tubular reinforcement member 16; Underwater-curing fluid material 17; DESCRIPTION OF SYMBOLS 19; Underwater curable fluid leakage prevention member 2; Device or equipment used in water 21; Micro-hydraulic power generation device using flowing water 3; Temporary frame 31; Main frame member 32; Elevator 32a for floor board arrangement; Part 32b; Planar movable mechanism part 32c; Guide rail equivalent member 33; Auxiliary tool 34a for flooring arrangement; Guide member A for flooring arrangement
34b; Floor placement guide member B
35; Floor base temporary receiving member 36; Level adjustment means 36a; Main level adjustment column 36b; Main level adjustment column guide part 36c; Level adjustment screw part 36d; Load distribution part 36e; Level adjustment handle 4;

Claims (4)

  An underwater foundation to be fixed to a submerged ground having a fixing means for fixing a device or equipment used in water such as a river in water, comprising a concrete board or a steel structure board on which the equipment or equipment is mounted. A belt-like elastic member is attached around the lower part of the floor, and a perforated part that perforates a water bottom ground is provided at a lower part near at least four corners of the floor. A rod-like or tubular reinforcing member is provided, and an underwater curable fluid is injected into the gap of the perforated part and the gap surrounded by the floor, the belt-like elastic member, and the bottom of the ground, and solidified and cured. An underwater foundation characterized by being integrated so that the floor can be fixed to the bottom ground.   The fixing means is placed in the vicinity of the four corners of the floor board so as to stand upright from the floor board, and a fixed rod-like or tubular guide member is used as a guide to lower the device or equipment into the water and fix it at a predetermined position. The underwater foundation according to claim 1, wherein the underwater foundation can be installed.   The method for installing an underwater foundation according to claim 1 or 2, wherein the floor board is temporarily placed above the water at a position where the floor board is disposed as a temporary structure for installing the underwater foundation. Using a temporary frame having floor board disposing means that can be held and lowered and held at a predetermined position, the floor board is held at a predetermined position in water, and at least four corners of the floor board are set. A hole or a tubular reinforcing member is inserted into the perforated portion, and then the void portion of the perforated portion and the void portion surrounded by the floor, the belt-like elastic member, and the water bottom ground are drilled. An underwater foundation installation method, characterized in that an underwater-curing fluid is injected, solidified, cured, and integrated so that the floor can be fixed to the bottom ground.   The method for installing an underwater foundation according to claim 3, wherein the frame has level adjusting means capable of adjusting the level of the frame itself.

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