JP6424346B1 - Automatic double-passed watertight type seawall using tsunami expansion force - Google Patents

Abstract

PROBLEM TO BE SOLVED: A tsunami expansion force that automatically opens a tide plate to prevent a tsunami without a hitch when the tsunami comes in, and does not give a sense of obstruction to residents along the coast by setting the tide plate open normally. Provide a self-sealing watertight type seawall using
SOLUTION: A column main body 11 erected on a foundation laid on a beach and reinforced with bracing rods, and a pair of tide plates 13 rotatably attached to the column main body so as to open and close to the sea side. , 13 ′ and a bracing rod-reinforced sub-post 14 holding the other end of the pair of tide plates, the post main body and the sub-post disposed alternately along the installation direction, When a tsunami comes in, the pressure between the pair of tide plates causes the pair of tide plates to rotate so that the pair of tide plates expand so that the tip is engaged with and held by the sub-post, thereby preventing the tsunami A self-sealing self-sealing type seawall using the tsunami expansion force, characterized in that it can play a role as a seawall of the sea.
[Selected figure] Figure 1

Description

The present invention relates to an automatic double-passed water-impervious seawall using a tsunami expansion force (referring to a force for pushing and spreading a tsunami wave protection plate).

As in the case of the Tohoku earthquake several years ago, it would be catastrophic if a large tsunami hits a living area along the sea. In these places, the bottom of the sea facing ocean is soft ground, and the dike is several kilometers long, so the conventional caisson and concrete anti-tsunami dikes are expensive for ground improvement and construction of mounds. In addition, it is difficult to put in large quantities of quarry and rock, and it is the fact that it is currently waiting for the injection of funds from public organizations, and furthermore, most of the conventional dikes are coastal. It is set higher, and of course the horizon can not be viewed from the land side, and there is no environmental consideration, so that there is no agreement on the construction of the dike of the local residents.

By the way, the following proposals have been made as a seawall having a door that opens and closes like a double door as a seawall corresponding to such a tsunami.
1) JP-A-2015-90058 (refer to Patent Document 1)
It is a water gate which has a pair of door which opens a channel by shielding a channel by contact of the tips with each other, and separating the tip, wherein the pair of doors shields the channel It is installed in the state so that a base end may be located in the upper stream side of the water channel rather than the tip, and a water gate.
The pair of doors is shielded by the weight of the weight.

2) JP-A-2015-14167 (refer to Patent Document 2)
In a hydraulic opening and closing device of a tide door in which a tide door attached to an opening such as a seawall is opened and closed by a hydraulic cylinder, a neutral position in a hydraulic circuit of the hydraulic cylinder and a closed door position for moving the hydraulic cylinder forward And the open position where the hydraulic cylinder is moved backward is provided with an operation type switching valve that can be switched by electric or manual operation, while an accumulator that can always store hydraulic pressure, and a neutral position of the operation type switching valve The closed position where the hydraulic pressure is supplied to the hydraulic cylinder to move forward when the float moves up and down in conjunction with the water level fluctuation on the sea side, and the hydraulic pressure supplied to the hydraulic cylinder when the float descends is returned to the oil tank A float type switching valve for switching to an open position to be moved back, and hydraulic pressure of the accumulator at the closed position of the float type switching valve is returned to the hydraulic cylinder And a shuttle valve for switching the hydraulic pressure of the hydraulic cylinder back to the oil tank at the open position of the float type switching valve and the shuttle valve. Switchgear.

JP, 2015-90058, A JP, 2015-14167, A

However, in any of the above-described prior arts, the weight of the weight is used as a shielding mechanism of the door, and the tide door is operated to open and close with a hydraulic cylinder.
Therefore, it is difficult to reliably open and close the door in an emergency, and the entire structure of the seawall becomes complicated, and there is a problem that the apparatus tends to be very expensive.

According to the present invention, when a high tsunami strikes a beach etc., the tide plate automatically opens to prevent the tsunami without arbitrage, and keep the steel tide plate closed when not normally used. The purpose of this project is to provide a self-sealing watertight type seawall using tsunami expansion power that does not give a sense of blockage to the people along the coast.

That is, the automatic double-passing water-impervious seawall using the tsunami expansion force of the present invention is a pillar main body which is erected on a three-dimensional base laid on the beach and reinforced with a bracing rod,
A pair of sloped steel tide plates rotatably mounted so as to open and close to the sea mainly on the columns;
Further, a bracing rod-reinforced sub-post which holds the other end of the pair of tide plates,
The pillar main bodies and the sub pillars are alternately arranged along the installation direction,
When a tsunami strikes, the tsunami penetrates between the pair of tide plates, so that the natural pressure causes the pair of tide plates to rotate and spread, and the tip is engaged with and held by the sub-posts, thereby creating a tide embankment. It is characterized in that it can play its role as

In the self-sealing self-sealing watertight type seawall using the tsunami expansion force of the present invention, the pillar main body and the sub pillar are erected in the base to be inclined toward the sea side where the tsunami flows, and a pair of It is also characterized in that the facing portion on the front side of the tide plate is provided with a plurality of fixing magnet receivers.

In the self-sealing self-sealing watertight type seawall using the tsunami expansion force according to the present invention, the pair of tide plates are inclined and fixed to the sea side, closed by the attraction principle of heavy steel plate, and mutually closed. The tip of the opposite surface is arched in a curved shape, and on the inner surface of the arch, a plurality of reinforcing support plates are vertically arranged at predetermined intervals, and a carbon resin plate for reinforcement and weight reduction. Is also characterized in that it is pasted.

In the self-sealing self-sealing watertight type seawall using the tsunami expansion force according to the present invention, it is preferred that the bracing bars for reinforcing the column main body and the sub column are disposed from the land side with respect to the column main body and the sub column. Is also a feature.

In the self-sealing self-sealing watertight type seawall using the tsunami expansion force of the present invention, the bracing rods for reinforcing the main support and the sub support are not only the sea side but also the land side with respect to the main support and the sub support. It is also characterized by being disposed in a pair.

In the case of the self-sealing self-sealing watertight type seawall using tsunami expansion force according to the present invention, the main support and the sub support are respectively constituted by a pair of main support with a predetermined interval and a pair of sub support with a predetermined interval adjacent thereto. It is also characterized in that an elevated road is disposed between the pillar main body and the predetermined distance between the sub pillars.

In the case of the automatic double-sealing watertight type seawall using the tsunami expansion force of the present invention, the basement laid on the shore has a honeycomb structure in which a longitudinal plate and a transverse plate having a plurality of inset grooves formed at predetermined intervals are assembled in a cross shape. In the honeycomb structure, fresh concrete is cast and solidified.

In the self-sealing self-sealing watertight type seawall using the tsunami expansion power of the present invention, the foundation laid on the coast has a retaining wall in the form of an arch bridge formed thereon, and the retaining wall in the form of the arch bridge The structure is a built-up structure with a concrete bowl-shaped engaging block, or a plurality of rod-like wood members are incorporated into a group-like structure, and the natural warping force and distortion force of the rod-like wood members are applied contrary to durability. It is also characterized by the fact that it is possible to construct a strong seawall with significantly improved shrinkage and contraction resistance and integrity.

According to the present invention, when using a honeycomb block body in which incisions of a certain depth are formed up and down along the shore where a tsunami strikes, the height is 20 to 30 meters, the width 10 to 30 meters, and the length It is possible to easily and quickly build an automatic double-type seawall capable of several kilometers or more.
Then, according to the invention of claim 1, when a tsunami comes in, the tsunami enters between the pair of tide plates, and the pressure causes the pair of tide plates to rotate and open so as to expand by the pressure, and the tip thereof is the sub-strut By being engaged and held, it can serve as a seawall for tsunami prevention. Therefore, when a high tsunami strikes the coast etc., the steel tide plate automatically opens to prevent the tsunami without arbitrage, and when it is not normally used, the tide plate is closed and the columns are opened, In addition, it is possible to provide the automatic double-sealing type seawall that uses the tsunami expansion force that does not give a sense of blockage to the residents along the coast, which makes it possible to move the seawall opening.

Then, according to the invention of claim 2, since the main prop and the sub-post are erected in the base with a slight inclination toward the sea side where the tsunami is coming, the attractive force of the heavy steel plate in the normal state is According to the principle of the invention, it is possible to provide a self-sealing watertight type seawall that is closed and that is robust and has a very good weight balance with the use of a tsunami expansion force.

According to the invention of claim 3, the pair of steel tide plates have an arch shape in which the tips of the opposing surfaces of each other are bent back, and a reinforcing support plate is predetermined in the vertical direction on the inner surface of the arch. Are arranged at intervals of Therefore, it is possible to provide an automatic double-passed watertight type seawall using a very light weight and high strength tsunami expansion force using a carbon material or the like.

Then, according to the invention of claim 4, the bracing rods for reinforcing the column main body and the secondary column are disposed from the land side with respect to the column main body and the secondary column. Therefore, it is possible to provide an automatic double-passed watertight type seawall using a very light weight and high strength tsunami expansion force.

Then, according to the invention of claim 5, the bracing bars for reinforcing the column main body and the sub column are disposed in a pair from the sea side and the land side with respect to the column main body and the sub column.
Therefore, it is possible to provide an automatic double-passed watertight type seawall using a very light weight and high strength tsunami expansion force.

And, according to the invention of claim 6, the main prop and the sub-post are constituted by a pair of main prop at a predetermined interval, and a pair of sub-posts at a predetermined interval adjacent thereto. To provide an automatic double-passed watertight type seawall using a tsunami expansion force which can arrange an elevated road between predetermined intervals of a column and which is very useful for inspection of the apparatus and evacuation in the case of a tsunami etc. Can.

And according to the invention of claim 7, the foundation laid on the shore has a honeycomb structure in which a longitudinal plate and a transverse plate having a plurality of inset grooves formed at predetermined intervals are assembled in a cross shape, and the honeycomb structure Fresh concrete is cast and solidified inside.
Therefore, it is possible to provide a base that constitutes an automatic double-passed watertight type seawall using a very light weight and high strength tsunami expansion force. Furthermore, a base having a built-up structure with a concrete bowl-shaped engaging block, a concrete base having a rod-like wood body having a strength and a rod-like wood body having a predetermined thickness made of wood or bamboo embedded in concrete. You can build a wall. In this way, it is possible to improve the pressure resistance by making the weight of the base significantly large, so it is possible to counter the expansion of a larger Imperial Tsunami.

It is a schematic perspective view which shows one example of embodiment of the automatic double-passed water blocking type seawall using the tsunami expansion force of this invention. It is a schematic plan view which shows the principal part. The opening-and-closing process of a steel tide board is shown, (a) is a schematic plan view in the state which opened the tide board of the seawall, (b) is a schematic plan view in the closed state. It is a schematic sectional drawing which shows the general | schematic structure of a steel tide board. It is a schematic side view explaining the installation state. It is a schematic plan view which shows the use example which mounts a wind power generator on the tide board of this invention. Similarly, it is a schematic side view which shows the example which installed the elevated road on the seawall. Furthermore, it is a schematic plan view which shows the example of continuous installation to a coast. It is a schematic side view. An example of a one-step honeycomb type base is shown, (a) is a schematic side view of a pair of honeycomb plate materials constituting the base, and (b) is a schematic perspective view of the constructed honeycomb type base. It is a schematic perspective view which shows the composition state of the board | plate material for honey-comb which comprises a base | substrate. It is a schematic perspective view which shows the board | plate material for honey-combs. It is a schematic perspective view which shows the state which provided the insertion groove which inserts two adjacent board | plate materials for honey-combs into the board | plate material for honey-combs. It is a schematic perspective view which shows the example of the arch bridge which it is going to assemble | attach the tide board of this invention. It is a schematic perspective view which shows the example which assembled the tide board of this invention in the arch bridge. FIG. It is a schematic perspective view of the arch bridge using the honeycomb form base of the present invention. It is a schematic sectional drawing of the state which embeds and embeds several rod-like wood bodies in the wall body of the bridge pier upper part of an arch bridge. It is a schematic perspective view of the attachment state of several rod-shaped woody body integrated in the wall body of the bridge pier upper part of an arch bridge. (A) is a general | schematic upper surface perspective view of a wedge-shaped engagement block, (b) is a schematic lower surface perspective view of a wedge-shaped engagement block. (A) is a schematic top view of a wedge-shaped engaging block, (b) is a schematic bottom view of a wedge-shaped engaging block. (A) is a schematic top view of a wedge-like engagement block having a width of 1/2, and (b) is a schematic bottom view of a wedge-like engagement block having a width of 1/2. (A) is a general | schematic upper surface perspective view of the wedge-shaped engagement block of a taper-shaped form, (b) is a schematic lower surface perspective view of the wedge-shaped engagement block of a taper-shaped form. (A) is a schematic top view of the wedge-shaped engagement block of a taper form, (b) is a schematic parallel top view of the wedge-shaped engagement block of a taper form. FIG. 5 is a schematic top view of a curved construction of a wedge-shaped engagement block in a tapered configuration. It is a schematic sectional drawing of a bowl-shaped engagement block.

Hereinafter, an embodiment of the automatic double-passed water blocking type seawall using the tsunami expansion force of the present invention will be described based on the drawings.
A schematic view of a self-sealing water blocking type seawall using the tsunami expansion force of the present invention is shown in FIG. 1 to FIG.
That is, the automatic double-passed water-impervious seawall using the tsunami expansion force of the present embodiment is a foundation installed on a beach, in particular, a pillar main body 11 erected on a honeycomb type foundation 31 and reinforced with bracing rods 12; A brace that holds a pair of steel tide plates 13 and 13 'rotatably mounted so as to open and close toward the sea side to the column main body 11 and the pair of steel tide plates 13 and 13' And a support post 14 reinforced by a rod 15. Then, the main struts 11 and the sub struts 14 are alternately arranged along the installation direction (coastline or the like).
In FIG. 2 and FIG. 3, 13a is a magnet holder which adsorbs and holds a pair of steel tide plates 13, 13 'in an open state.

In the case of an automatic double-passing watertight type seawall using such a tsunami expansion force, when a tsunami strikes, a pair of steel tideplates 13 and 13 'is inserted between the pair of steel tide plates, so that the pressure makes a pair The steel tide plate 13, 13 'is rotated and opened, and the tip thereof is engaged with and held by the sub-post 14, thereby serving as a seawall for preventing a tsunami.
The actual length of the installation is 4 to 5 kilometers, and the height above the sea surface is preferably 20 to 30 meters, and 5 to 10 meters wide.

In the case of the automatic double-passing watertight type seawall using the tsunami expansion force of the present embodiment, as shown in FIG. 5, the main struts 11 and the sub struts 14 are inclined toward the sea side where the tsunamis approach and honeycomb It is erected on the form base 31. By doing this, it is possible to provide a very well-balanced tsunami protection seawall.

In the case of the automatic double-passing watertight type seawall using the tsunami expansion force of the present embodiment, the pair of steel tide plates 13 and 13 'have an arch shape in which the tips of the opposing surfaces are bent back, as shown in FIG. As shown in FIG. 1, on the inner surface of the arch, a support plate 16 for reinforcement is disposed at predetermined intervals in the vertical direction.
Steel, FRP, etc. can be used as the material of the steel tide plates 13 and 13 'and the support plate 16 for reinforcement, but a resin board reinforced with a carbon fiber sheet such as CFRP can be used as a sandwich structure. It can be applied as a material, and can provide a very lightweight and strong tsunami protection seawall.

3 (a) and 3 (b) show the opening and closing mechanism of the pair of steel tide plates 13 and 13 ', and when the tsunami is pushed in the state of FIG. 3 (a), the tsunamis are opposite to each other. It enters into the gap between the pair of arched steel tide plates 13, 13 'whose tips are bent back. At that time, the pressure of the tsunami rotates the pair of tide plates 13 and 13 'so as to expand, and the tip thereof is engaged with and held by the sub-post 14.
In this way, when a high tsunami strikes the coast etc., the steel breakwater 13 and 13 'automatically opens to close the seawall and prevent the tsunami unreasonably, and when not normally used By opening the tide embankment with the tide plates 13 and 13 'open, it is possible to provide a tide embankment for preventing the tsunami without giving the residents along the coast a sense of blockage.

FIG. 6 (and FIG. 4) shows a first modification of the automatic double-passing watertight type seawall using tsunami expansion force, and a support pole (not shown) is provided on the upper portion of the column main body 11. Wind turbine blades 21 are installed to provide an emergency or maintenance power source.
The main struts 11 and the secondary struts 14 in this example are arranged in parallel or in a zigzag with respect to the installation line.

In the automatic double-passed water-impervious type seawall using the tsunami expansion force of the present embodiment, the bracing bars 12 and 15 for reinforcing the column main body 11 and the sub column 14 are landed with respect to the column main body 11 and the sub column 14. It is arranged from the side.
Of course, as shown in FIGS. 8 and 9, the bracing bars 12 and 15 for reinforcing the main strut 11 and the sub-post 14 are disposed in pairs from the sea side and the land side with respect to the main post 11 and the sub-post 14, respectively. It may be set.

FIG. 7 shows a second modified example of the automatic double-passed watertight type seawall using the tsunami expansion force, wherein the main pillar support 11 and the sub support pillar 14 are a pair of support pillar main bodies 11a and 11b at predetermined intervals, respectively. A pair of sub-posts 14a and 14b are formed at a predetermined interval adjacent to each other, and an elevated road 17 is disposed between the main posts 11a and 11b and the sub-posts 14a and 14b at a predetermined interval.
The bracing rods 12 and 15 in this modification are disposed on the sea side and the land side, respectively, and the braces 18 are disposed so as to intersect between the pillar main bodies 11a and 11b and the sub pillars 14a and 14b at predetermined intervals. It is set up.
The elevated road 17 is very useful for inspection of the apparatus, evacuation in the case of a tsunami, and the like, and can provide a high-value-added tsunami protection seawall.

In the case of the automatic double-passed watertight type seawall using the tsunami expansion force of the present invention, as shown in FIGS. 10 (a) and (b), the honeycomb type foundation 31 laid on the shore has a plurality of inset grooves at predetermined intervals. A honeycomb structure is formed by alternately assembling the honeycomb plate members 32 made up of the longitudinal plate and the lateral plate, in which the longitudinal grooves 33 are formed. And in this honeycomb structure, fresh concrete is cast.
FIGS. 11 and 12 show a multi-layered honeycomb type base 31 with a honeycomb plate 32 formed with the inset grooves 33, and grooves 33a are formed at predetermined intervals on one side in the longitudinal direction, and On the other side of the groove 33b is disposed so as to be at an intermediate position of the groove 33a.
In FIG. 13, a wide groove 33 c for inserting two adjacent honeycomb plate members 32 as an insertion groove 33 is formed. By connecting the respective honeycomb plate members 32 using the wide groove 33c, the long honeycomb type substrate 31 can be easily formed.

The honeycomb type base 31 laid on the sea in this manner has a honeycomb structure formed by alternately assembling a longitudinal plate and a lateral plate in which a plurality of inset grooves 33 are formed at predetermined intervals, and in the honeycomb structure Since the concrete is cast, it is possible to provide a foundation that constitutes an automatic double-passed watertight type seawall using a very light weight and high strength tsunami expansion force.

14 to 16 show an example in which a tide plate is assembled to an arch bridge.
That is, FIG. 14 shows an example of an arch bridge 41 to which the tide plate of the present invention is to be assembled. This arch bridge 41 has a slit-like opening whose upper part is arched at a predetermined interval in the lower part thereof. Department 42 is open.
And the tide board 44 of this invention is assembled | attached to the opening part 42 of the said arch bridge 41, as shown to FIG. 15 and FIG. That is, the upper part of the column main body 45 is disposed along the bridge 43 between the openings 42 so that the upper part of the column main body 45 is inclined to the sea side, and the steel tide plate 46 can be opened and closed on both sides of the column main body 45 It is attached. 46a is a magnet holder for holding the steel tide plate 46 on both sides in the open state.
By assembling the tide plate 46 of the present invention to the arch bridge 41, it is possible to provide an automatic double-sealing watertight type seawall using a very strong tsunami expansion force.

FIG. 17 shows an arch bridge using a honeycomb base, and FIG. 18 shows a state in which a plurality of rod-like wood members are embedded and embedded in the upper wall of the bridge pier of the arch bridge.
That is, FIG. 17 shows an example of the arch bridge 41 to which the tide plate of the present invention is to be assembled. This arch bridge 41 is a base 47 in which a plurality of rod-like wood members 48 are incorporated in the upper and lower portions of the bridge leg 43. Are buried.
Further, FIG. 18 shows a base 47 incorporating the bar-like wood members 48, and the bar-like wood members 48 are appropriately embedded in the base 47 in an arrangement for increasing the strength. In addition, as the rod-like wood body 48, so-called thinning wood and other wood, bamboo wood and the like can be suitably used, which leads not only to a significant increase in strength but also to a significant cost reduction.
FIG. 19 shows an example of the assembled state of a plurality of rod-like wood members 48 incorporated in the upper wall of the bridge pier of the arch bridge.

Hereinafter, FIGS. 20 to 26 show an example of a base 47 using a hook-like engagement block having convex and concave surfaces engaged with each other in upper and lower surfaces. As such an example, Japanese Patent Application No. 2016-91272 (Japanese Patent Application Laid-Open No. 2017-198022) according to the application of the present inventor can be mentioned.
FIG. 20A is a schematic top perspective view of the hook-shaped engagement block 50, and FIG. 20B is a schematic bottom perspective view of the hook-shaped engagement block 50. As shown in FIG.
FIG. 21 (a) is a schematic top view of the hook-shaped engagement block 50, and FIG. 21 (b) is a schematic bottom view of the hook-shaped engagement block 50. As shown in FIG.
FIG. 22A is a schematic top view of a hook-shaped engagement block 51 having a width of 1/2, and FIG. 22B is a schematic bottom view of the hook-shaped engagement block 51 having a width of 1/2.
FIG. 23 (a) is a schematic top perspective view of a wedge-shaped engaging block 52 in a tapered form, and FIG. 23 (b) is a schematic bottom perspective view of the wedge-shaped engaging block 52 in a tapered form.
FIG. 24 (a) is a schematic top view of a wedge-shaped engaging block 52 in a tapered form, and FIG. 24 (b) is a schematic parallel top view of the wedge-shaped engaging block 52 in a tapered form.
FIG. 25 is a schematic top view on a curve of wedge-shaped engagement block 52 in a tapered configuration.
FIG. 26 is a schematic cross-sectional view of the hook-like engagement block 50. As shown in FIG.

Although the present invention has been described on the assumption that the present invention is applied to an automatic double-passing watertight type seawall using tsunami expansion power, it is of course not limited to use for tsunami prevention, and may be applied to seawalls for other uses. Needless to say.

Reference Signs List 11 pillar main body 11a, 11b pillar main body 12 bracing rod 13, 13 'steel tide plate 13a magnet support 14 subpillar 14a, 14b subpillar 15 bracing rod 16 support plate for reinforcement 17 elevated road 18 bracing 21 blade for wind power generation Reference Signs List 31 honeycomb type base 32 honeycomb plate 33 inset groove 33a groove 33b groove 33c wide groove 41 arch bridge 42 slit-like opening 43 bridge leg 44 tide plate 45 column main body 46 steel tide plate 46a magnet receiver 47 base 48 rody wood Body 49 Concrete body 50 Wedge-shaped engaging block 51 Wedge-shaped engaging block 52 having a width of 1/2 Wedge-shaped engaging block in tapered form

Claims (7)

A pillar main body erected on a foundation laid on the coast and reinforced with bracing bars,
A pair of tide plates rotatably mounted so as to face the sea side and open and close to the columns;
A bracing rod-backed sub-post which holds the other end of the pair of tide plates;
The main support column and the sub support column are erected on the base inclined toward the sea side where the tsunami is approaching, and a plurality of fixing magnet receivers are provided on the front opposing parts of the pair of tide plates. Yes,
The pillar main bodies and the sub pillars are alternately arranged along the installation direction,
When a tsunami comes in, the pressure between the pair of tide plates causes the pair of tide plates to rotate so that the pair of tide plates expand so that the tip is engaged with and held by the sub-post, thereby preventing the tsunami A self-sealing self-sealing type seawall using the tsunami expansion force, characterized in that it can play a role as a seawall of the sea. The pair of tide plates has an arch shape in which the tips of the opposing surfaces are curved, and a reinforcing support plate is disposed on the inner surface of the arch at a predetermined interval in the vertical direction. An automatic double-passed watertight type seawall using the tsunami expansion force according to claim 1 . The automatic using the tsunami expansion force according to claim 1 or 2 , wherein the bracing rods for reinforcing the column main body and the sub column are disposed from the land side with respect to the column main body and the sub column. Double-opening watertight type seawall. The tsunami expansion according to claim 1 or 2 , characterized in that a pair of bracing bars for reinforcing the column main body and the secondary column is disposed from the sea side and the land side with respect to the column main body and the secondary column. Automatic double sided watertight type seawall using force. The main prop and the sub support are each constituted by a pair of main props at a predetermined interval and a pair of sub supports at a predetermined interval adjacent thereto, and an elevated road is provided between the predetermined main support and the sub post. The self-sealing water blocking type seawall using the tsunami expansion force according to any one of claims 1 to 4 , characterized in that The foundation laid on the coast has a honeycomb structure formed by alternately assembling a longitudinal plate and a lateral plate in which a plurality of inset grooves are formed at predetermined intervals, and concrete is cast in the honeycomb structure. The self-sealing water blocking type seawall using the tsunami expansion force according to any one of claims 1 to 5 , characterized in that. The foundation laid on the coast has a retaining wall in the form of an arch bridge built on top of it, or the structure of the retaining wall in the form of the arch bridge is a laminated structure with concrete wedge-shaped engaging blocks, A robust tide that incorporates multiple bar-like wood bodies in a block shape, and applies the natural warping force and deflection force of the bar-like wood bodies against each other to greatly improve the durability, shrinkage, pressure resistance and integrity. The self-opening double-passed watertight type seawall using the tsunami expansion force according to any one of claims 1 to 6 , characterized in that a bank can be constructed.

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