JPH04138421U - breakwater - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a breakwater that prevents seawater pollution within a port by allowing seawater to flow in and out of the port through the caisson itself, which is a breakwater structure. [Structure] The caisson body 1 is composed of a box caisson 1A and a base 1B corresponding to the lower part thereof and provided with an opening 2 that communicates with the inside and outside of the port.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This idea was constructed using caissons and was designed to allow seawater to flow in and out of the port. Regarding the breakwater that can be built.

0002

[Conventional technology]

Conventionally, when a breakwater was built using a caisson, the caisson itself was particularly susceptible to seawater inside and outside the port. No means of inflow and outflow are provided.

0003

[Problem that the idea aims to solve]

For this reason, the entry and exit points of seawater inside and outside the port are limited, and seawater pollution within the port is reduced. There was an issue of being encouraged. Moreover, it damages the scenery of the coastal area and has a negative impact on the coastal area, which has recently become an important issue. Regarding marine development (comprehensive maintenance and development of coastal areas and offshore waters), which is There was also the issue of having to deal with the situation.

0004 This idea was proposed in view of the above points, and its purpose is to The caisson body 1, which is an embankment structure, is equipped with a means to allow seawater to flow in and out of the port. The aim is to provide a breakwater that prevents seawater pollution within the country.

[0005]

[Means to solve the problem]

In this invention, the caisson body 1 corresponds to the box caisson 1A and its lower part, and By constructing the base 1B with an opening 2 that communicates with the outside and outside of the port. The above objectives have been achieved.

[0006]

[Effect]

In this invention, when constructing a breakwater using the box caisson 1A, the bottom of the caisson body 1 is An opening 2 is provided in the port to allow seawater to flow in and out of the port due to tides and ocean currents. The aim is to prevent pollution within the port by making the port more functional.

[0007]

【Example】

1 and 2 show a first embodiment of the present invention. 1 in the diagram is a unit that constitutes breakwater A The caisson body is made of a concrete box block, and this caisson body 1 is made of a box made of concrete. A block caisson 1A and a base 1B corresponding to the lower part thereof and provided with an opening 2. It is characterized by its structure. The opening 2 of this base 1B allows seawater S to flow in and out from the inside of the port B to the outside of the port C. It is formed in a substantially horizontal direction. In addition, a large number of rooms 1C are provided in the box caisson 1A of the caisson body 1. There is.

[0008] During construction, the bases 1B were placed in advance on the rubble mound 4 on the seabed 3. By fixing it in place and placing a normal box caisson 1A on top of it. The caisson body 1 can be constructed, and the breakwater A can be completed. In this case, the caisson body 1 is constructed on the deck of a floating dock (not shown). Afterwards, the floating dock was launched at a suitable location, towed to the installation location, and the box was removed. Water is poured into the caisson 1A and placed on the base 1B on the rubble mound 4 set on the submarine ground 3. Let it settle and fill each room 1C (for example, with earth and gravel), and then open it. Construction was completed by pouring concrete on the upper part of the building.

[0009] It should be noted that it is not necessarily necessary to construct a floating dock as described above, but a dry dock. Of course, it is also possible to construct the structure using a rack type, a hanging type, a ramp type, etc. Therefore, the breakwater of the breakwater A is constructed by arranging a plurality of such caisson bodies 1 in parallel. However, in areas where the water depth is relatively large, the influence of waves is generally small near the seabed. Since there is no opening 2, it can be said that there is a sufficient wave-proofing effect even if there is an opening 2. Therefore Therefore, if the water depth is such that the wave-proofing effect is not reduced, the opening 2 is not limited to one level but multiple levels. It may be. In this embodiment, the base 1B having the opening 2 and the caisson body 1A are separate bodies. Therefore, it is possible to manufacture them separately through simultaneous work, and in that case, the production can be completed in a short period of time. I can make it.

0010 Note that opening 2 may be determined as described above depending on the scale of breakwater A and the situation of the port where it is installed. The shape of the opening 2 may be not only rectangular but also other shapes. The size can be arbitrarily designed depending on the situation. Furthermore, the opening The direction of section 2 is also limited to extending in a straight line toward the outside of the port and communicating with the inside and outside of the port. It can be curved to some extent, placed with obstacles on the way, or made uneven. It is also possible to adjust the inflow and outflow of seawater. Also, such an opening 2 can also be used as a fish reef.

[0011] Figures 3 and 4 show a second embodiment of the present invention, in which blocks are joined together. A base 1B having an opening 2 is formed by aligning or overlapping each other. The rest is the same as the embodiment described above.

0012

[Effect of the idea]

As described above, according to the present invention, since the opening is formed at the bottom of the breakwater, it can be used both inside and outside the port. It is possible to prevent seawater from flowing in and out and causing seawater pollution, thereby damaging the scenery of the coastal area. It also has the effect of preventing negative impacts on coastal areas.

[Brief explanation of drawings]

[Fig. 1] Front view of the first embodiment of the present invention

[Figure 2] Side sectional view of the embodiment same as above

[Fig. 3] Front view of the second embodiment of the present invention

[Fig. 4] Side sectional view of the embodiment same as above

[Explanation of symbols]

1...Caisson body 1A... Box caisson 1B...base 1C...Room 1d... bulkhead 2...Opening 3... ocean floor 4...Rubbish mound A... Breakwater B...Inner side of the port C...Outside the port S...Seawater

Claims (1)

[Scope of utility model registration request] [Claim 1] The caisson body 1 is a box caisson 1A,
A breakwater comprising a base 1B corresponding to the lower part thereof and provided with an opening 2 that communicates with the outside and outside of the port, and having a plurality of these installed in parallel.