JP4109431B2 - Aquatic structure with water play room - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an aquatic structure having a water reserving chamber used for unloading aquatic structures such as a quay and a jetty, a revetment structure, a breakwater structure, a levee structure, and the like.
[0002]
[Prior art]
Conventionally, as water body structures having a recreational water chamber used for a quay or the like, Japanese Patent Application Laid-Open No. 10-102458 and Japanese Patent Application Laid-Open No. 10-102549 related to the prior application of the present applicant are known. This water body structure is outlined, and steel sheet piles or steel pipe sheet piles are placed on the bottom of the water bottom while fitting the joints, and two rows are constructed at predetermined intervals, and the upper part of the front and rear steel pipe sheet pile rows is made of concrete. It is constructed by connecting with superstructure.
[0003]
[Problems to be solved by the invention]
In the prior art, there is no wave-dissipating device in front of the impervious wall, so the reflected wave height of the waves generated on the sea surface increases, and the calmness of the front water area of the water structure is poor, causing problems in use. there were. An object of this invention is to provide the water body structure which has the water reservoir which solved the said problem.
[0004]
[Means for Solving the Problems]
In order to solve the above problems, the water structure of the present invention is configured as follows.
[0005]
The invention according to claim 1 is provided with a plurality of first joints (1a) and second joints (1b) continuously from at least a predetermined position below the ground surface of the bottom bottom ground (13) to a predetermined position below the water surface. The upper transmission wall body constituting member (2) is disposed by means such as placing the first joint (1a) and the second joint (1b) on the water bottom ground (13). An upper transmission wall body (4) having a water passage slit (3) is formed above the combined first joint (1a) and second joint (1b), and the upper transmission wall body constituting member (2 ) Are connected by the first structure extension direction connecting member (30), and the third joint (5a) A number of upper impermeable wall constituting members (6) having four joints (5b) are formed by the third joint (5a) and the fourth joint (5b). Are placed on the bottom bottom ground (13) by means such as driving and the impermeable wall body (8) is configured, and the head of the upper impermeable wall body constituting member (6) is the second structure. The rear pile (17) is connected to the impermeable wall body (8) at a position on the back side separated by a predetermined distance by means of an object extending direction connecting member (31) by means such as placing on the bottom bottom ground (13). A large number of diagonal members (14) that are disposed and extend obliquely downward from the upper part of the impermeable wall body (8) toward the water bottom ground (13) are arranged, and the upper end portion of the diagonal member (14) is the first one. The lower cylinder (15) is connected to the lower end of the diagonal member (14), and the rear pile (17) is connected to the lower cylinder (15). A space-cured material such as mortar (1) is inserted into the space formed by the lower cylindrical body (15) and the rear pile (17). ), The lower cylinder (15) is joined to the middle part of the rear pile (17) to form a rating point (19), the impermeable wall body (8) and the upper transmission wall body (4) In between, the filling material (21) such as earth and sand is arranged from the water bottom ground (13) to about half the height of the upper surface of the second structure extension direction connecting material (31). The height of the rating point (19) is located in the vicinity of the surface protective layer (23) provided on the upper surface of the filling material (21), and is buried behind the impermeable wall (8). The material (20) is arranged up to the appropriate height.
[0006]
The invention according to claim 2 is the invention according to claim 1, wherein the upper transmitting wall member (2), the upper impermeable wall member (6), and the head of the rear pile (17) are made of upper steel. The part which is connected by the beam (11) and is located between the rear pile (17) and the upper impermeable wall body constituting member (6) is a surface exposed part (11a) where the time-curable material is not placed, The surface exposed portion (11a) is characterized by being anticorrosive.
[0007]
The invention according to claim 3 is the invention according to claim 1 or 2, wherein a portion located between the upper permeable wall member constituting member (2) and the upper impermeable wall member constituting member (6) is cured with time. The surface exposed portion (11a) is not provided with a conductive material, and the surface exposed portion (11a) is subjected to anticorrosion.
[0008]
The invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein the heads of the rear piles (17) are connected by a structure extension direction connecting member (32). Features.
[0010]
The invention according to claim 5 is the invention according to any one of claims 1 to 4, wherein the head of the upper transmission wall member (2) is the first structure extension direction connecting member (30). The first structure extension direction connecting member (30), the head of the upper transmission wall member (2) and the head of the upper impermeable wall member (6) are connected to each other. A third upper coupling portion (C) including an intersection with the cross-sectional direction coupling member (CA) is formed, and the head of the upper impermeable wall member (6) is coupled in the second structure extension direction. The second structure extension direction connecting material (31), the first cross-sectional direction connecting material (CA), the rear pile (17), and the upper impermeable wall member (6). ), The first upper coupling portion (A) including the intersecting portion of the second cross-sectional connecting material (AB) that connects the heads of the rear piles is formed. 17) are connected by a third structure extension direction connecting member (32), and an intersection of the third structure extension direction connecting member (32) and the second cross-sectional direction connecting member (AB). A second upper coupling portion (B) is formed.
[0011]
A sixth aspect of the present invention is the second aspect of the invention according to the fifth aspect, wherein the second upper direction includes at least an intersection of the third structure extension direction coupling member (32) and the second cross-sectional direction coupling member (AB). A coupling portion (B) is formed, and a first upper coupling portion (A) including an intersection of the second structure extension direction coupling material (31) and the second cross-sectional direction coupling material (AB) is formed. It is characterized by being.
[0012]
According to a seventh aspect of the present invention, in the fifth aspect of the invention, a third upper portion including at least an intersection of the first structural extension direction coupling member (30) and the first cross-sectional direction coupling member (CA). A coupling portion (C) is formed, and a first upper coupling portion (A) including an intersection of the second structure extension direction coupling material (31) and the first cross-sectional direction coupling material (CA) is formed. It is characterized by being.
[0013]
The invention according to claim 8 is the invention according to any one of claims 5 to 7, characterized in that the first cross-sectional connection member (CA) is reinforced concrete or steel reinforced concrete.
[0014]
The invention according to claim 9 is the invention according to any one of claims 5 to 7, characterized in that the first cross-section connecting member (CA) is a corrosion-proof or non-corrosion-proof steel beam. .
[0015]
The invention according to claim 10 is the invention according to any one of claims 5 to 9, characterized in that the second cross-sectional connecting material (AB) is reinforced concrete or steel reinforced concrete.
[0016]
The invention according to claim 11 is the invention according to any one of claims 5 to 9, wherein the second cross-section direction connecting member (AB) is a corrosion-resistant or non-corrosion-proof shaped steel or steel beam material such as a steel pipe. It is characterized by being.
[0017]
The invention according to claim 12 is the invention according to claim 1, wherein on the inner surface of the pile insertion lower cylindrical body (15), the protrusions (16a) for preventing slippage are provided at appropriate intervals, and the rear pile (17) At least an outer peripheral surface of a portion inserted through the lower cylindrical body (15) is provided with protrusions (16) for preventing displacement at appropriate intervals.
[0018]
The invention according to claim 13 is the invention according to any one of claims 5 to 12, wherein a surface protective layer (23) is provided on the surface of the filling material (21) such as earth and sand. And
[0019]
The invention according to claim 14 is the invention according to any one of claims 1 to 13, wherein the upper transmission wall member constituting member (2) and the upper impermeable wall member constituting member (6) are steel sheet piles. It is characterized by.
[0020]
The invention described in claim 15 is characterized in that, in the invention described in any one of claims 1 to 13, the upper impermeable wall member (6) is a steel sheet pile.
[0021]
[Action]
According to the present invention, the continuous wall of the double-walled structure is made into a permeable structure having a slit or the like through which seawater can permeate. In combination with this, the wave-dissipating effect can be exhibited and the reflected wave height can be reduced.
[0022]
DETAILED DESCRIPTION OF THE INVENTION
Next, the present invention will be described in detail based on the illustrated embodiment.
[0023]
1 to 4 show a water structure according to the first embodiment. First, a number of upper transmission wall members 2 made of steel pipe sheet piles having joints 1a and 1b made of steel pipes having T-shaped steel joints 1 and fitting grooves 5 are provided at predetermined locations on the lower side. The joints 1a and 1b are driven into the water bottom ground 13 until they reach the supporting ground layer (not shown) in a state where the joints 1a and 1b are engaged with each other. Thereby, the upper transmission wall body 4 which has the slit 3 for water flow on the upper side is comprised. The upper water passage slit 3 is formed by connecting the upper ends (b) of the joints 1a and 1b to the lower surface (b) of the structural extension direction connecting member 30 in the concrete upper work 12 to which the head of the upper transmission wall constituting member 2 is connected. ) Is lowered by a predetermined dimension L, so that it is formed between the steel pipe sheet pile main bodies. Moreover, the slit 3 for water flow may be provided in all the joints 1a and 1b which connect each upper permeation | transmission wall body structural member 2, and may be provided at intervals for every 1 or several joint. Further, the predetermined dimension L may be different for each joint.
[0024]
An impervious wall 8 is formed at a rear position facing the upper transparent wall 4 at a predetermined interval. The impervious wall 8 includes a number of upper impervious wall members made of steel pipe sheet piles having joints 5a and 5b made of a steel pipe 1 having a T-shaped steel joint 1 extending to the upper end and a fitting groove 5. 6 in the state where the joints 5a and 5b are engaged with each other until reaching the supporting ground layer (not shown). The upper end of the upper impermeable wall member 6 is connected to a structure extension direction connecting member 31 in the concrete upper work 12.
[0025]
Steel pipe rear piles 17 reach a supporting ground layer (not shown) at a predetermined interval in the structure extension direction at a rear position facing the upper impermeable wall member 6 at a predetermined interval. Until then. The upper end of the rear pile 17 is coupled to the upper coupling portion B of the structural extension direction coupling member 32 in the concrete superstructure 12. The concrete superstructure 12 is formed by placing concrete on the upper steel beam 11 made of H-shaped steel that connects the upper transmitting wall member 2, the upper impermeable wall member 6, and the head of the rear pile 17. It is constructed of steel reinforced concrete or reinforced concrete, and the upper steel beam 11 may be anticorrosion or non-corrosion-proof.
[0026]
A large number of diagonal members 14 extending obliquely downward from the upper part of the impermeable wall body 8 toward the water bottom ground 13 are arranged at appropriate intervals in the structure extending direction, The lower cylinder 15 for insertion is connected, and the rear pile 17 is inserted into the lower cylinder 15. As shown in FIG. 4, a plurality of anti-slipping projections 16 are fixed to the outer peripheral surface of the rear pile 17 covered with the lower cylinder 15, and the inner surface of the pile insertion lower cylinder 15 is displaced at an appropriate interval. In addition to providing a stop projection 16a, a sealing 24 is disposed on the inner periphery of the lower end of the lower cylindrical body 4, and a space formed by the rear pile 17 and the lower cylindrical body 15 via a grout injection hose A time-curable material 18 such as mortar is filled, and the lower cylindrical body 15 is connected to an intermediate portion of the rear pile 17 to form a rating point 19. The upper end portion of the diagonal member 14 is coupled to the upper coupling portion A.
[0027]
Thus, the provision of the diagonal member 14 improves the horizontal load resistance function of the structure. The lower cylindrical body 15 and the diagonal member 14 are located in the backing material 20. The upper end portion of the diagonal member 14 and the upper end portion of the impervious wall constituting member 6 are connected at the upper coupling portion A.
[0028]
The back side of the impervious wall 8 is filled with a backfill 20 to an appropriate height, and between the upper transparent wall 4 and the impervious wall 8, a filling material 21 such as earth and sand to an appropriate height. Is filled, and a water reserving chamber 22 is formed above the filling material 21 such as earth and sand and between the upper transmission wall body 4 and the non-transmission wall body 8. A surface protective layer 23 is provided on the upper surface of the filling material 21 such as earth and sand. The surface protective layer 23 is a horizontal surface, and the upper ends (A) of the front joints 1a and 1b are surface protective. It is provided at substantially the same level as layer 23 or slightly higher. The surface protective layer 23 (the surface of the filling material 21 such as earth and sand) has an arbitrary shape such as a slope inclined so as to become lower from the rear to the front, or a combination of a slope and a horizontal plane. It doesn't matter.
[0029]
Between the front permeable wall body 4 and the rear non-permeable wall body 8 configured as described above, seawater is contained in the reclaimed water chamber 22 provided on the filling material 21 such as earth and sand. The water enters and exits through the upper water passage slit 3, and at this time, the wave momentum is attenuated and the wave-dissipating effect is exhibited. 25 is the sea level.
[0030]
When the width of the water passage slit 3 is D1 and the arrangement interval of the upper transmission wall member 2 is D2, D1 / D2 is set to about 5 to 35%, preferably 10 to 20%. is there.
[0031]
FIGS. 5-11 shows the water body structure concerning 2nd-8th embodiment, Comprising: This 2nd-8th embodiment should also be called the modification of 1st Embodiment, and is fundamental. Since the structure is the same as that of the first embodiment, in the following descriptions, the same components as those of the first embodiment are denoted by the same reference numerals, the duplicate description is omitted, and different configurations will be described.
[0032]
FIG. 5 shows a second embodiment, in the upper steel beam 11 made of H-shaped steel that connects the upper transmission wall member 2, the upper impermeable wall member 6, and the head of the rear pile 17. 17 and the upper impermeable wall body constituting member 6, that is, a portion located in the cross-sectional direction connecting member AB is a surface exposed portion 11 a in which a time-curable material such as concrete is not placed, 20 is buried. The surface exposed portion 11a may or may not be protected against corrosion. Other configurations are the same as those of the first embodiment.
[0033]
FIG. 6 shows a third embodiment, and in the upper steel beam 11 made of H-shaped steel that connects the upper transmission wall member 2, the upper impermeable wall member 6, and the head of the rear pile 17, 17 and the upper impermeable wall member 6 and between the upper transparent wall member 2 and the upper impermeable wall member 6, that is, the portions of the cross-sectional connecting members AB and CA are hardened over time such as concrete. The surface exposed portions 11a and 11b, where no material is placed, are provided in the backfill material 20 so that the surface exposed portions 11a are subjected to anticorrosion as necessary. An example in which anti-corrosion is always applied because seawater is often applied is shown.
[0034]
FIG. 7 shows a fourth embodiment. In this embodiment, the upper transmission wall body constituting member 2, the upper impermeable wall body constituting member 6, and the cross-section direction connecting members AB and CA for connecting the heads of the rear piles 17. In the example, the cross-sectional connecting member CA is omitted, the air holes 26 are formed, and the steel beam 11 is omitted in the cross-sectional connecting member CA. Other configurations are the same as those of the first embodiment.
[0035]
FIG. 8 shows the fifth embodiment. In this embodiment, the upper transmission wall member 2, the upper impermeable wall member 6, and the steel beam 11 connecting the heads of the rear piles 17 are the upper transmission members. The steel beam 11 in the cross-section connecting member CA that connects the wall member 2 and the upper impermeable wall member 6 is omitted. The cross-sectional connection material AB is made of steel reinforced concrete, and the cross-direction connection material CA is simply made of reinforced concrete. Other configurations are the same as those of the first embodiment.
[0036]
FIG. 9 shows a sixth embodiment, and in this embodiment, the rear pile of the steel beams 11 connecting the upper transmission wall member 2, the upper impermeable wall member 6 and the head of the rear pile 17. The steel beam 11 which connects between 17 and the upper impervious wall constituting member 6 is omitted, and the cross-sectional connecting material AB which connects between the rear pile 17 and the upper impermeable wall constituting member 6 is omitted. The hole 26 is formed, the hole 26 is filled with the backfill material 20, and the connecting member in the cross-sectional direction that joins between the upper transmission wall member 2 and the upper impermeable wall member 6 An example is shown in which a hole 26 is formed in the CA, and the steel beam 11 is a non-concrete placement surface exposed portion 11b in the hole 26 portion. Other configurations are the same as those of the first embodiment.
[0037]
FIG. 10 shows a seventh embodiment. In this embodiment, the steel beam 11 that connects the upper transmission wall member 2, the upper impermeable wall member 6, and the head of the rear pile 17 is not used. At the same time, the cross-section connecting member CA that joins between the upper transparent wall constituting member 2 and the upper impermeable wall constituting member 6 is made of reinforced concrete without using a steel frame, and the rear pile 17 and the upper impermeable wall. An example in which the cross-section direction connecting member AB for connecting the body constituent members 6 is omitted is shown. Moreover, the structure extension direction connection material of the head of the back pile 17 is also abbreviate | omitted.
[0038]
FIG. 11 shows an eighth embodiment. In this embodiment, in addition to the configuration of the seventh embodiment, a tie material 27 is used between the head of the upper impermeable wall member 6 and the head of the rear pile 17. A combined example is shown. The means for fixing both ends of the tie material 27 to the head of the upper impermeable wall member 6 and the head of the rear pile 17 is arbitrary, but in the illustrated example, the head of the upper impermeable wall member 6 By providing notches in the head of the rear pile 17 and sandwiching both ends of the tie material 27 provided with locking members 29 at the ends between the mounted steel bars 28, the heads of the respective members It is stuck.
[0039]
The filling material 21 such as earth and sand in the water structure of the present invention may be filled and charged between the upper permeable wall body 4 and the impermeable wall body 8 after the construction. Further, after the upper transmission wall 4 is constructed, it may be formed by rubbing the front surface thereof.
[0040]
Although the present invention has been described with the above embodiments, the scope of the present invention is not limited to these embodiments. For example, as shown in FIG. 12, the joints 1a and 1b of the upper transmission wall 4 may be provided near the sea surface so that the water passage slit 3 is submerged.
[0041]
【The invention's effect】
According to the present invention, a wave-dissipating device having a hollow chamber serving as a water-reserving chamber necessary for expressing the wave-dissipating effect with the upper transmitting wall member 4 is provided at a predetermined position on the front surface of the impermeable wall member 8. Therefore, the wave-dissipating effect can be exhibited and the reflected wave height can be reduced. Moreover, since the back pile 17 and the diagonal member 14 are arrange | positioned behind the impervious wall 8, the horizontal load-proof function is excellent.
[0042]
[Brief description of the drawings]
FIG. 1 is a longitudinal side view showing a water structure having a water reserving chamber according to a first embodiment of the present invention.
FIG. 2 is an explanatory plan view showing an arrangement mode of the wall constituting member and the rear pile of FIG. 1;
FIG. 3 is a detailed view of the joint in FIG. 1;
4 is an enlarged cross-sectional view of the insertion portion of the pile insertion cylinder and the back pile in FIG. 1. FIG.
FIG. 5 is a longitudinal side view showing a water body structure having a water chamber according to a second embodiment of the present invention.
FIG. 6 is a vertical side view showing a water body structure having a water reservoir according to a third embodiment of the present invention.
FIG. 7 is a longitudinal side view showing a water body structure having a water reservoir according to a fourth embodiment of the present invention.
FIG. 8 is a vertical side view showing a water structure having a water reserving chamber according to a fifth embodiment of the present invention.
FIG. 9 is a vertical side view showing a water structure having a water reserving chamber according to a sixth embodiment of the present invention.
FIG. 10 is a vertical side view showing a water structure having a water reserving chamber according to a seventh embodiment of the present invention.
FIG. 11 is a longitudinal side view showing a water body structure having a water reservoir according to an eighth embodiment of the present invention.
FIG. 12 is a longitudinal side view showing a water body structure having a water reserving chamber when a joint of an upper transmission wall body is also provided in the vicinity of the seawater surface.
[Explanation of symbols]
[0043]
DESCRIPTION OF SYMBOLS 1 Steel joint 1a, 1b Joint 2 Upper permeable wall body structural member 3 Water-permeable slit 4 Upper permeable wall body 5 Fitting groove 5a, 5b Joint 6 Upper impermeable wall body structural member 8 Non-permeable wall body 11 Beams 11a, b Surface exposed part 12 Concrete superstructure 13 Submerged ground 14 Diagonal material 15 Pile insertion cylinder 16, 16a Protrusion 17 for preventing slipping Back pile 18 Temporarily hardened material 19 Grade part 20 Backfill material 21 Sediment etc. Filling material 22 Reservoir chamber 23 Surface protection layer 24 Sealing 25 Sea surface 26 Hole 27 Tie material 28 Groove steel 29 Locking member 30 Structure extension direction connection material 31 Structure extension direction connection material 32 Structure extension direction connection Material A Upper joint B Upper joint C Upper joint AB Cross-section connecting material CA Cross-section connecting material

Claims (15)

A number of upper transmission wall members ( 1) including a first joint (1a) and a second joint (1b) continuously from at least a predetermined position below the ground surface of the water bottom ground (13) to a predetermined position below the water surface ( 2), the first joint (1a), the second joint (1b) and the first joint ( 1a), an upper transmission wall body (4) having a water passage slit (3) above the second joint (1b ) is formed;
The head part of the upper transmission wall constituting member (2) is connected by the first structure extension direction connecting member (30),
At the position on the back side separated from the upper transmission wall (4) by a predetermined distance,
The third joint (5a), the fourth joint (5b) a number of upper impermeable wall constituting member having a (6), fitting the third joint (5a), the fourth joint (5b) The impermeable wall (8) is configured by being placed on the water bottom ground (13) by means such as placing,
The heads of the upper impermeable wall constituting member (6) are connected by a second structure extension direction connecting member (31),
At a position on the back side that is separated from the impermeable wall body (8) by a predetermined distance,
The rear pile (17) is arranged by means such as placing in the bottom of the ground (13),
A large number of diagonal members (14) extending obliquely downward from the upper part of the impermeable wall body (8) toward the water bottom ground (13) are arranged, and the upper end portion of the diagonal member (14) is a first upper coupling. The lower cylinder (15) is connected to the lower end of the diagonal member (14), and the rear pile (17) is inserted into the lower cylinder (15). The space formed by the lower cylinder (15) and the rear pile (17) is filled with a time-curable material (18) such as mortar, and the lower cylinder (15) is formed by the rear pile (17). ) To form a grade (19)
Between the impervious wall (8) and the upper transparent wall (4), the height of the upper surface of the second structure extension direction connecting member (31) from the water bottom ground (13) is ½. Filling material (21) such as earth and sand is arranged to a height of about ,
The height of the rating point (19) is located in the vicinity of the surface protective layer (23) provided on the upper surface of the filling material (21),
An aquatic structure having a water-reserving chamber, wherein a backfill (20) is appropriately arranged behind the impermeable wall (8).   The upper transmitting wall member (2), the upper impermeable wall member (6) and the head of the rear pile (17) are connected by an upper steel beam (11), and the rear pile (17) and the upper The portion located between the transmissive wall constituting members (6) is the surface exposed portion (11a) where the time-curable material is not placed, and the surface exposed portion (11a) is subjected to corrosion prevention or non-corrosion prevention. The water structure according to claim 1, wherein: Further, a portion located between the upper transmission wall constituting member (2) and the upper impermeable wall constituting member (6) is a surface exposed portion (11a) where no time-curable material is placed, The water surface structure according to claim 1 or 2, wherein the surface exposed portion (11a) is anticorrosive or non-corrosive. The water area having a water chamber according to any one of claims 1 to 3, wherein the heads of the rear piles (17) are connected by a third structure extension direction connecting member (32). Structure. The heads of the upper transmission wall constituting member (2) are connected by a first structure extension direction connecting member (30), and the first structure extension direction connecting member (30) and the upper transmission wall body configuration A third upper coupling portion (C) including an intersection of the head of the member (2) and the first cross-section connecting member (CA) that connects the head of the upper impermeable wall constituting member (6). Formed,
The heads of the upper impermeable wall constituting member (6) are connected by a second structure extension direction connecting member (31), and the second structure extension direction connecting member (31) and the first cross section. A first upper connection including a direction connecting member (CA) and an intersecting portion of a second cross-sectional connecting member (AB) for connecting the heads of the rear pile (17) and the upper impermeable wall member (6). Part (A) is formed,
The heads of the rear piles (17) are connected by a third structure extension direction connecting member (32), and the third structure extension direction connecting member (32) and the second cross section direction connecting member (AB). The water structure according to claim 1, wherein a second upper coupling portion (B) including a crossing portion is formed. A second upper connecting portion (B) including at least an intersection of the third structure extending direction connecting member (32) and the second cross sectional direction connecting member (AB) is formed, and the second structure extending direction is formed. 6. The water-reserving chamber according to claim 5, wherein a first upper coupling portion (A) including an intersection of the connecting member (31) and the second cross-sectional connecting member (AB) is formed. Water structure. A third upper connecting portion (C) including an intersection of at least the first structure extending direction connecting member (30) and the first cross section connecting member (CA) is formed, and the second structure extending direction is formed. The water area having a drinking water chamber according to claim 5, wherein a first upper coupling portion (A) including an intersection of the connecting member (31) and the first cross-sectional connecting member (CA) is formed. Structure. The water area structure having a water-reserving chamber according to any one of claims 5 to 7, wherein the first cross-linking member (CA) is reinforced concrete or steel reinforced concrete. The water structure according to any one of claims 5 to 7, wherein the first cross-section connecting member (CA) is a corrosion-proof or non-corrosion-proof steel beam. The water structure having a water-reserving chamber according to any one of claims 5 to 9, wherein the second cross-sectional connecting member (AB) is reinforced concrete or steel-framed reinforced concrete. The second cross-section connecting member (AB) is a steel beam material such as a corrosion-proof or non-corrosion-resistant shape steel or a steel pipe, and has a water-reserving chamber according to any one of claims 5 to 9. Water structure.   Protrusions (16a) for preventing slippage are provided on the inner surface of the lower tubular body (15) for pile insertion at appropriate intervals, and the outer periphery of the portion of the rear pile (17) inserted through at least the lower tubular body (15). The water structure according to claim 1, wherein protrusions (16) for preventing slippage are provided on the surface at appropriate intervals.   The water body structure having a water reservoir according to any one of claims 5 to 12, wherein a surface protective layer (23) is provided on a surface of a filling material (21) such as earth and sand.   The upper permeable wall body constituting member (2) and the upper impermeable wall body constituting member (6) are steel pipe sheet piles, and the water area structure having a water-reserving chamber according to any one of claims 1 to 13. .   The upper water-impervious wall constituting member (6) is a steel sheet pile, The water area structure having a water-reserving chamber according to any one of claims 1 to 13.

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