JPH07498Y2 - Structure building unit - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a unit for constructing a structure, and more specifically to a constructing unit suitably used for constructing a submerged dike or the like. It is a thing.

[Prior art and problems to be solved]

Conventionally, there are breakwaters and submerged dike structures that have been used as countermeasures against erosion on the coast, etc. Of these, the breakwaters have a structure in which the cut-off wall is projected slightly above the sea surface. However, since it is unfavorable for the scenery, in recent years, the submerged embankment has been actively adopted by setting the crown surface of the dam body below the sea level and ensuring a calm sea area without hindering the scenery.

By the way, when building this submerged embankment, because blocks such as multi-legged blocks are combined and piled up in multiple layers on a mound formed of rubble, not only the number of blocks used increases but the construction cost increases. However, the installation work is complicated, and when it is devised as a fish reef as a means for cultivating fish resources such as fish, it has various problems to be solved such as a small porosity.

[Means for solving problems]

Therefore, in the present invention, when constructing such a structure as a submerged dam, a lower frame-shaped unit in which an inclined support portion is formed on the top surface and a fitting portion is provided continuously to the inclined support portion, By using the upper frame unit mounted on the inclined support section of the lower frame unit to construct a single layer, the installation work can be facilitated and the porosity can be increased by reducing the number of units used. It is a thing.

In this case, the fitting portion provided on the lower frame-shaped unit is constituted by a notch step portion formed in parallel with the inclination angle of the inclined support portion, while the upper frame-shaped unit is formed on the lower surface of the rectangular frame-shaped main body by If it is configured by forming a fitting recess that fits the inclined support portion of the lower frame-shaped unit and providing an upper surface recess similar to the fitting recess on the upper side surface, it is possible to easily and reliably fit the units together. It can be carried out.

Furthermore, if a lid unit that covers the upper side surface of the upper frame-shaped unit is fitted into the upper surface concave portion of the upper frame-shaped unit as necessary, the stability can be improved due to an increase in weight.

[Action]

For structures such as submersibles using the construction unit according to the present invention, the lower frame unit is installed on the rubble mound,
Installation work can be done simply by placing the upper frame unit on the inclined support portion of this lower frame unit, and it can also be used as a fish reef.

〔Example〕

Next, a submerged dam construction unit will be illustrated as a preferred embodiment of the construction unit according to the present invention, and will be described in detail below with reference to the accompanying drawings.

Referring to FIG. 1, a submerged embankment building unit 10 according to the present invention.
Is a lower frame-shaped unit 12 made of reinforced concrete or the like, an upper frame-shaped unit 14 placed on the lower frame-shaped unit 12, and a lid unit 16 used as necessary.
It is basically composed of and.

The lower frame-shaped unit 12 includes a pair of side members 2 having legs 18.
0 and 20 are separated from each other by a predetermined distance and connected by a horizontal member 22, a tilted support portion 24 is formed on the top surface of the horizontal member 22, and the tilted support portion 24 is continuous with the cutout portion according to the tilt angle. It is configured by forming the fitting portion 26 by the stepped portion.

Further, since the upper frame-shaped unit 14 is placed on the inclined support portion 24 of the lower frame-shaped unit 12, the lower frame-shaped main body 28 formed in a rectangular shape has the lower frame-shaped body at the middle portion of the lower side surface. A downward fitting recess 30 for fitting with the inclined support portion 24 of the unit 12 is formed, an upper recess 32 similar to the fitting recess 30 is provided below the upper side surface, and a predetermined shape is further provided on the upper end of the lower side surface. It is configured by providing a stepped recess 34.

Further, the lid unit 16 is provided with a ridge 36 for fitting into the upper surface recess 32 of the upper frame-shaped unit 14 at a predetermined position on the lower surface of the plate-shaped main body 16a. It is formed in a rectangular shape so as to cover the opening of the shaping unit 14.

When constructing a submerged embankment using the construction unit 10 configured in this way, a mound A is formed in advance by abandoned stone or the like, and a predetermined number of lower parts are formed along the embankment formation direction on the mound A. The frame unit 12 is installed. In this state, the inclined support portion 24 of the lower frame-shaped unit 12 faces the offshore side. Then, the upper frame-shaped unit 14 is placed on the inclined support portions 24 of these lower frame-shaped units 12, and the fitting recesses 30 thereof are fitted into the inclined support portions 24, and if necessary, the upper frame-shaped units 14 The ridge 36 of the lid unit 16 is fitted into the upper surface recessed portion 32 of 14 to close the opening (see FIG. 2a and FIG.
(See Figure 2b).

In this case, the lid unit 16 is for facilitating the downward force on the entire structure combined with the wave force of the incident wave and for improving the stability due to the increase in the weight. Needless to say, the bank may be omitted except when the bank is installed under severe wave conditions.

In addition, when the water depth from the sea surface to the mound A is deep, the height of the lower frame-shaped unit 12 is set large as shown in FIG. 3 and the upper frame-shaped unit 14 is also set proportionally higher. Should be used. When it is necessary to set the crown width W of the dam body to a large value, the upper frame-shaped unit 14 is fitted to the upper frame-shaped unit 14 mounted on the lower frame-shaped unit 12, as shown in FIG. A plurality of overlapping structures are adopted, but in this case, it is formed in the upper surface concave portion 32 of the upper frame-shaped unit 14 located below and between the upper surface concave portion 32 and the stepped concave portion 34 of the upper frame-shaped unit 14 located above. It suffices to fit the fitting projection 38.

Furthermore, as shown in FIG. 5, if the upper frame-shaped unit 14 is further stacked in a staggered pattern with respect to the lower frame-shaped unit 12, a complicated space can be created, so that the fish reef effect is improved. Can be planned.

The submerged dike constructed in this way has a structure in which a downward force is generated in the entire structure that is combined with the wave force of the incident wave, so it is excellent in stability, and a frame unit with an extremely large porosity is used. Since it can be constructed by stacking more, the required number is small and construction efficiency and economic efficiency are high.Each component of the frame-shaped unit opposes the incident wave individually, so not only the wave-dissipating effect is large, but also the stability by the action of the lid unit Therefore, it can be suitably used as a fish reef.

[Effect of device]

As described above, the construction unit according to the present invention can be constructed with more layers when constructing a submerged dike, etc., so that the number of units used can be small, and the construction unit and the economy can be reduced by shortening the maritime work. It is extremely advantageous in comparison with the above, and the scale of the entire levee body such as levee height and levee width can be easily adjusted according to the water depth and the required transmitted wave height. Furthermore, since each unit forms a rail roughness, the wave-dissipating effect is large. In addition, the frame-shaped unit with a large porosity is united to counter the wave force and the mutual meshing is sure, so it is excellent in stability,
Further, since the opening is large, it has various advantages such that it can be suitably used as a fish reef without inhibiting the exchange of water inside and outside the bank, and its practical effect is extremely large.

The submerged dam construction unit has been described as an example of the preferred embodiment of the construction unit according to the present invention, but the present invention is not limited to this embodiment. Needless to say, various modifications can be made without departing from the spirit of the present invention, such as use as a structure building unit such as earth retaining, fish reef using large porosity, coral reef or rockfall receiving work. is there.

[Brief description of drawings]

FIG. 1a is a perspective view of each unit of a submerged dam construction unit as a preferred embodiment of the construction unit according to the present invention, FIG.
The figure is a perspective view of the submarine constructed with the unit shown in Fig. 1,
Fig. 2b is a side view of the submerged dike shown in Fig. 2a, Fig. 3 is a side view of another submerged dike that is different from Fig. 2b, and Figs. 4 and 5 are different units as shown in Fig. 1. It is a perspective view of the submerged dike. 10 ... Construction unit, 12 ... Lower frame type unit, 14 ... Upper frame type unit, 16 ... Lid unit, 18 ... Leg part, 20 ... Side forming member, 22 ... Horizontal member, 24 ... Inclined support part, 26 ... Fitting part, 28 ... Frame body, 30 ... Fitting recess, 32 ... Top recess, 34 ...
Step recess, 36 ... ridge, 38 ... fitting protrusion,

Claims (3)

[Scope of utility model registration request] 1. A lower frame-shaped unit having an inclined support formed on a top surface thereof and a fitting portion continuously provided on the inclined support, and the lower frame-shaped unit mounted on the inclined support. A structure building unit comprising an upper frame unit. 2. The unit for constructing a structure according to claim 1, wherein the fitting portion provided on the lower frame-shaped unit is constituted by a notched step portion formed in parallel with an inclination angle of the inclined support portion. 3. The upper frame-shaped unit is provided with a fitting recess at a predetermined location on the lower side of the rectangular frame body for fitting with an inclined support portion of the lower frame unit, and at the predetermined location on the upper side with the fitting recess. The structure building unit according to claim 2, wherein the same upper surface recess is formed.