JP2006070536A - Movable breakwater for countermeasure against seismic sea wave/high tide - Google Patents

Movable breakwater for countermeasure against seismic sea wave/high tide Download PDF

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JP2006070536A
JP2006070536A JP2004254156A JP2004254156A JP2006070536A JP 2006070536 A JP2006070536 A JP 2006070536A JP 2004254156 A JP2004254156 A JP 2004254156A JP 2004254156 A JP2004254156 A JP 2004254156A JP 2006070536 A JP2006070536 A JP 2006070536A
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revetment
wall
breakwater
float
floats
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Tamotsu Tamura
保 田村
Akira Tanigawa
亮 谷川
Keiichi Nishimura
敬一 西村
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IHI Corp
Penta Ocean Construction Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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    • Y02A10/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
    • Y02A10/11Hard structures, e.g. dams, dykes or breakwaters

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a movable breakwater for countermeasures against seismic sea wave/high tide, normally low in the whole height so as not to impede landscape, rising in case of an abnormal tide level such as seismic sea wave or high tide to exhibit a breakwater function, adjacently installed over several hundred meters or more, having watertightness and pressure tightness required for the connection part, smooth in the whole operation and hardly needing repair. <P>SOLUTION: This movable breakwater for countermeasures against seismic sea wave/high tide is provided with a revetment external wall 12 having a first vertical internal wall surface 12a installed along a revetment; a revetment internal wall 14 having a second internal wall surface 14a installed parallel adjoining the revetment external wall and separated almost at a constant space from the first internal wall; a plurality of revetment connecting members 16 for connecting the revetment external wall and the revetment internal wall at predetermined spaces along the revetment; a plurality of breakwater floats 18 held in a rectangular space surrounded by the first internal wall, the second internal wall and the adjoining revetment connecting members and floatable above the revetment external wall by the buoyancy of water standing between the first internal wall surface and the second internal wall surface; and a water leakage reducing device 20 provided between the adjoining breakwater floats to reduce water leakage from the clearance. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、補助扉によって連続化された津波・高潮対策用の可動式防波堤に関する。   The present invention relates to a movable breakwater for countermeasures against tsunamis and storm surges made continuous by auxiliary doors.

東海地震を始め、津波による被害が心配される地域では、津波・高潮対策として護岸の改造が要望されている。しかし、港等の護岸において、何十年に一度の確率でしか発生しない津波や高潮などの異常潮位時のために護岸の高さをそれに合わせると、莫大な費用が発生し不経済であるのみならず景観を阻害する問題がある。   In areas where there are concerns about damage caused by the tsunami, such as the Tokai earthquake, rehabilitation of the revetment is required as a countermeasure against tsunami and storm surge. However, if the height of the revetment is adjusted to the height of an abnormal tide such as a tsunami or storm surge that occurs only once every decade in a seawall at a port, etc., it is very expensive and expensive. There is a problem that obstructs the landscape.

そこで異常潮位時の流入水の浮力を利用した止水装置として、例えば特許文献1、2が提案されている。   Therefore, for example, Patent Documents 1 and 2 have been proposed as a water stop device using the buoyancy of inflow water at an abnormal tide level.

特許文献1の「浮力式床面止水装置」は、動力や人間による操作を必要とせずに出水時に自動的に浮上する浮力式止水板であり、図10に示すように、通路の床面Fに埋設したトラフ状の集水ピット51の内部に嵩比重を1以下とした止水板52を挿入するとともに集水ピット51の近傍に同じ床面Fに開口する1次ピット55を設け、これら集水ピット51と1次ピット55とを連通孔56で接続して構成したものである。   The “buoyancy type floor water stop device” of Patent Document 1 is a buoyancy type water stop plate that automatically floats at the time of flooding without requiring power or human operation. As shown in FIG. A water stop plate 52 having a bulk specific gravity of 1 or less is inserted into a trough-shaped water collecting pit 51 embedded in the surface F, and a primary pit 55 opened to the same floor F is provided in the vicinity of the water collecting pit 51. These water collecting pits 51 and primary pits 55 are connected by communication holes 56.

特許文献2の「防波堤」は、波の高さに応じて堤体の高さを変化させることができ、堤体が海面から姿を現す量を減少させることができることを目的とし、図11に示すように、横方向に所定の間隔をおいて、面対向させて水中に立設したガイド側壁61と、これらのガイド側壁間に収納した中空の昇降堤体62と、この昇降堤体内の水量を調節して堤体の浮力を調節する手段とからなり、堤体61を側壁間において沈降及び浮上可能に構成したものである。   The “breakwater” disclosed in Patent Document 2 is capable of changing the height of the levee body according to the height of the wave and reducing the amount of the dam body appearing from the sea surface. As shown in the figure, a guide side wall 61 standing in the water facing the surface at a predetermined interval in the lateral direction, a hollow elevating levee body 62 housed between these guide side walls, and the amount of water in the elevating levee body The levee body 61 is configured to be able to sink and float between the side walls.

特開2000−345537号公報、「浮力式床面止水装置」Japanese Unexamined Patent Publication No. 2000-345537, “buoyancy type floor water stop device” 特開平5−79023号公報、「防波堤」JP-A-5-79023, “breakwater”

上述した従来の浮力式止水板や防波堤は、単体のフロート(止水板や昇降堤体)を用いているが、これらを数百メートル以上にもわたって設置する際には、フロート間の防水対策が問題となる。
すなわちフロートを収納する堤防体内の水槽は全体として非常に長い(数百メートル以上)ものになるので、適切な間隔で水槽の前後を構造的に連結しないと必要な強度を確保し難くなる。
The above-mentioned conventional buoyancy type waterstops and breakwaters use single floats (waterstops and elevating dams), but when installing them over several hundred meters, Waterproofing becomes a problem.
That is, since the water tank in the embankment for storing the float is very long as a whole (several hundred meters or more), it is difficult to secure the required strength unless the front and rear of the water tank are structurally connected at an appropriate interval.

しかし、その連結材の存在のためにフロート間に隙間が生じざるを得ない。従ってフロートが上昇したときにこの隙間を塞ぐ何らかの防水構造が必要となる。
また各フロートは浮上時にはそれぞれ違った挙動をするため、連結部の防水構造はそれらの動きに追従できるものでなければならない。
However, a gap must be generated between the floats because of the presence of the connecting material. Therefore, some waterproof structure is required to close this gap when the float is raised.
Also, each float behaves differently when ascending, so the waterproof structure of the connecting part must be able to follow those movements.

従ってフロート間の防水構造には以下の機能が求められる。
(1)ある程度の水密性があること、(2)水圧に耐えうる強度を有すること、(3)各フロートの動きにスムースに追従できること、(4)補修の必要性が少ないシンプルな構造であること。
Therefore, the following functions are required for the waterproof structure between the floats.
(1) It has a certain level of watertightness, (2) It has the strength to withstand water pressure, (3) It can smoothly follow the movement of each float, (4) It has a simple structure with little need for repair. thing.

本発明はかかる問題点を解決するために創案されたものである。すなわち、本発明の目的は、正常時には景観を阻害しないように全高が低く、津波や高潮などの異常潮位時に上昇して防波機能を発揮でき、かつ数百メートル以上にもわたって隣接して設置することができ、その連結部に必要な水密性及び耐圧性を有し、全体の作動がスムースであり、補修の必要性が少ない津波・高潮対策用の可動式防波堤を提供することにある。   The present invention has been made to solve such problems. That is, the object of the present invention is that the height is low so that the landscape is not hindered at normal times, it can rise at an abnormal tide level such as a tsunami or storm surge, and can exert a wave preventing function, and it is adjacent for several hundred meters or more. To provide a movable breakwater for tsunami and storm surge countermeasures that can be installed, has the necessary water tightness and pressure resistance at its connecting part, has a smooth overall operation, and requires little repair .

本発明によれば、護岸に沿って設置され鉛直の第1内壁面を有する護岸外壁と、該護岸外壁に隣接して平行に設置され前記第1内壁面からほぼ一定の間隔を隔てた第2内壁面を有する護岸内壁と、護岸外壁と護岸内壁を護岸に沿って所定の間隔を隔てて連結する複数の護岸連結部材と、前記第1内壁面、第2内壁面、および隣接する護岸連結部材で囲まれる矩形空間に収容され第1内壁面と第2内壁面の間に貯まる水の浮力で護岸外壁より上方まで浮上可能な複数の防波フロートと、隣接する防波フロート間に設けられその隙間からの漏水を低減する漏水低減装置とを備えたことを特徴とする津波・高潮対策用可動式防波堤が提供される。   According to the present invention, the outer wall of the revetment which is installed along the revetment and has a vertical first inner wall surface, and the second wall which is installed in parallel adjacent to the outer wall of the revetment and spaced apart from the first inner wall surface by a substantially constant interval. A revetment inner wall having an inner wall surface, a plurality of revetment connection members that connect the revetment outer wall and the revetment inner wall along the revetment at predetermined intervals, the first inner wall surface, the second inner wall surface, and an adjacent revetment connection member A plurality of wave-breaking floats that can be lifted above the outer wall of the revetment by the buoyancy of water stored between the first inner wall surface and the second inner wall surface, and are disposed between adjacent wave-breaking floats. Provided is a movable breakwater for tsunami and storm surge countermeasures, which is provided with a water leakage reduction device for reducing water leakage from a gap.

上記本発明の構成によれば、護岸外壁と護岸内壁の間に形成される矩形空間に防波フロートが収容されるので、正常時には景観を阻害しないように全高を低く抑えることができる。また津波や高潮などの異常潮位時に第1内壁面と第2内壁面の間に水が貯まることにより、防波フロートが護岸外壁より上方まで浮上(上昇)して防波機能を発揮することができる。
また、複数の護岸連結部材で護岸外壁と護岸内壁を所定の間隔を隔てて連結するので、適切な間隔で前後を構造的に連結し、必要な強度を確保することができる。
さらに、隣接する防波フロート間に漏水低減装置を設け、その隙間からの漏水を低減するので、数百メートル以上にもわたって隣接して設置することができる。
According to the configuration of the present invention, since the wave breakage float is accommodated in the rectangular space formed between the revetment outer wall and the revetment inner wall, the overall height can be kept low so as not to disturb the landscape at normal times. Moreover, when water is accumulated between the first inner wall surface and the second inner wall surface during an abnormal tide level such as a tsunami or storm surge, the wave break floats up (rises) above the revetment outer wall and exhibits a wave preventing function. it can.
Moreover, since the revetment outer wall and the revetment inner wall are connected at a predetermined interval by a plurality of revetment connecting members, the front and rear are structurally connected at an appropriate interval to ensure the required strength.
Furthermore, since a water leakage reduction device is provided between adjacent wave-breaking floats to reduce water leakage from the gap, it can be installed adjacently over several hundred meters.

本発明の好ましい第1実施形態によれば、前記漏水低減装置は、隣接する防波フロート間に位置し護岸外壁から護岸内壁に向けて積層された複数のスライド式補助扉であり、
該複数のスライド式補助扉を構成する最上部の補助扉の上端は、隣接する防波フロートの昇降に追従して昇降し、その最下部の補助扉の下端は前記護岸外壁、護岸内壁又は護岸連結部材に連結され、中間部の補助扉は上下端に設けられた係合部の係合により隣接する防波フロートの昇降に追従しながら最上部と最下部の補助扉の間を塞ぐようになっており、
前記隣接する防波フロートは、その端部に各スライド式補助扉の両端部を支持する端部支持金具を有する。
According to a preferred first embodiment of the present invention, the water leakage reduction device is a plurality of sliding auxiliary doors positioned between adjacent wave break floats and stacked from the revetment outer wall toward the revetment inner wall,
The upper end of the uppermost auxiliary door constituting the plurality of sliding type auxiliary doors is moved up and down following the raising and lowering of the adjacent wave breaker float, and the lower end of the lowermost auxiliary door is the revetment outer wall, revetment inner wall or revetment Connected to the connecting member, the auxiliary door at the middle part closes between the uppermost and lowermost auxiliary doors while following up and down of the adjacent wave-proof float by the engagement of the engaging parts provided at the upper and lower ends And
The adjacent wave-breaking float has end support brackets that support both ends of each sliding auxiliary door at its end.

この構成により、最上部の補助扉の上端が、隣接する防波フロートの昇降に追従して昇降し、その最下部の補助扉の下端は昇降しない箇所(護岸外壁、護岸内壁又は護岸連結部材)に連結されており、中間部の補助扉は上下端に設けられた係合部の係合により隣接する防波フロートの昇降に追従しながら最上部と最下部の補助扉の間を塞ぐので、その連結部に必要な水密性を確保できる。
また防波フロートに設けられた端部支持金具で、各スライド式補助扉の両端部を支持するので、必要な耐圧性も確保できる。
さらに、隙間があるシンプルな構造であり、磨耗や消耗がほとんどないので、全体の作動をスムースにでき、かつ補修の必要性を低減又は無くすことができる。
With this configuration, the upper end of the uppermost auxiliary door moves up and down following the raising and lowering of the adjacent wave breaker float, and the lower end of the lowermost auxiliary door does not move up and down (the revetment outer wall, the revetment inner wall or the revetment connecting member) The middle auxiliary door closes between the uppermost and lowermost auxiliary doors while following up and down of the adjacent wave breaker float by the engagement of the engaging portions provided at the upper and lower ends, The required water tightness can be secured at the connecting portion.
Moreover, since the both end parts of each sliding type auxiliary door are supported by the end support metal fittings provided in the breakwater float, the necessary pressure resistance can be ensured.
Furthermore, since it has a simple structure with a gap and there is almost no wear or wear, the overall operation can be made smooth and the need for repair can be reduced or eliminated.

本発明の好ましい第2実施形態によれば、前記漏水低減装置は、隣接する防波フロート間に位置し護岸外壁から護岸内壁に向けて所定の隙間を隔てて積層された複数の平板式補助扉であり、
該複数の平板式補助扉は、隣接する防波フロートの側面に一端が交互に固定され、隣接する防波フロートの昇降に追従してその間にラビリンスシールを形成する。
According to a second preferred embodiment of the present invention, the water leakage reducing device is a plurality of flat auxiliary doors positioned between adjacent wave break floats and stacked with a predetermined gap from the revetment outer wall toward the revetment inner wall. And
One end of each of the plurality of flat auxiliary doors is alternately fixed to the side surface of the adjacent wave preventing float, and a labyrinth seal is formed between the adjacent wave preventing floats.

この構成により、隣接する防波フロートの側面に一端が交互に固定された複数の平板式補助扉が、所定の隙間を隔てて積層されてその間にラビリンスシールを形成するので、その連結部に必要な水密性を確保できる。
また各平板式補助扉は、隣接する防波フロートの側面に一端が交互に固定されているので、必要な耐圧性も確保できる。
さらに、隙間があるシンプルな構造であり、磨耗や消耗がほとんどないので、全体の作動をスムースにでき、かつ補修の必要性を低減又は無くすことができる。
With this configuration, a plurality of flat-type auxiliary doors, one end of which is alternately fixed to the side surface of the adjacent wave-breaking float, are stacked with a predetermined gap therebetween to form a labyrinth seal therebetween. Secures water tightness.
Moreover, since each flat type auxiliary door is alternately fixed at one end to the side surface of the adjacent wave-proof float, the required pressure resistance can be secured.
Furthermore, since it has a simple structure with a gap and there is almost no wear or wear, the overall operation can be made smooth and the need for repair can be reduced or eliminated.

本発明の好ましい第3実施形態によれば、前記漏水低減装置は、隣接する防波フロート間に位置し護岸外壁から護岸内壁に向けて折り畳み可能な蛇腹式補助扉であり、
該蛇腹式補助扉を構成する最上部の補助扉の上端は、隣接する防波フロートの昇降に追従して昇降し、その最下部の補助扉の下端は前記護岸外壁、護岸内壁又は護岸連結部材に連結され、中間部の補助扉は上下端に設けられたヒンジ部の係合により最上部と最下部の補助扉の間を隣接する防波フロートの昇降に追従しながら塞ぐようになっており、
前記隣接する防波フロートは、その端部に蛇腹式補助扉のヒンジ部を支持するヒンジ部支持ガイドを有する。
According to a third preferred embodiment of the present invention, the water leakage reducing device is a bellows type auxiliary door that is located between adjacent wave break floats and can be folded from the revetment outer wall toward the revetment inner wall,
The upper end of the uppermost auxiliary door constituting the bellows type auxiliary door moves up and down following the raising and lowering of the adjacent wave breaker float, and the lower end of the lowermost auxiliary door is the revetment outer wall, revetment inner wall or revetment connecting member The intermediate auxiliary door is closed by following the elevation of the adjacent wave breaker float between the uppermost and lowermost auxiliary doors by the engagement of hinges provided at the upper and lower ends. ,
The adjacent wave-proof float has a hinge support guide that supports the hinge of the bellows type auxiliary door at its end.

この構成により、最上部の補助扉の上端が、隣接する防波フロートの昇降に追従して昇降し、その最下部の補助扉の下端は昇降しない箇所(護岸外壁、護岸内壁又は護岸連結部材)に連結されており、中間部の補助扉は上下端に設けられたヒンジ部の係合により最上部と最下部の補助扉の間を隣接する防波フロートの昇降に追従しながら塞ぐので、その連結部に必要な水密性を確保できる。
また防波フロートに設けられたヒンジ部支持ガイドで、蛇腹式補助扉のヒンジ部の両端部を支持するので、必要な耐圧性も確保できる。
さらに、隙間があるシンプルな構造であり、磨耗や消耗がほとんどないので、全体の作動をスムースにでき、かつ補修の必要性を低減又は無くすことができる。
With this configuration, the upper end of the uppermost auxiliary door moves up and down following the raising and lowering of the adjacent wave breaker float, and the lower end of the lowermost auxiliary door does not move up and down (the revetment outer wall, the revetment inner wall or the revetment connecting member) The intermediate auxiliary door closes the upper and lower auxiliary doors while following up and down of the adjacent wave breaker float by engaging the hinges provided at the upper and lower ends. The water tightness necessary for the connecting portion can be secured.
Moreover, since the both ends of the hinge part of a bellows type auxiliary door are supported by the hinge part support guide provided in the wave-proof float, required pressure | voltage resistance can also be ensured.
Furthermore, since it has a simple structure with a gap and there is almost no wear or wear, the overall operation can be made smooth and the need for repair can be reduced or eliminated.

上述したように、本発明の津波・高潮対策用の可動式防波堤は、フロート間に特殊な漏水低減装置を設けることで、フロートが上昇したときにフロート間の隙間の防水性を確保することができ、長距離の可動防波堤を実現することができる。従って、正常時には景観を阻害しないように全高が低く、津波や高潮などの異常潮位時に上昇して防波機能を発揮でき、かつ数百メートル以上にもわたって隣接して設置することができ、その連結部に必要な水密性及び耐圧性を有し、全体の作動がスムースであり、補修の必要性が少ない、等の優れた効果を有する。   As described above, the movable breakwater for tsunami and storm surge prevention of the present invention can ensure waterproofness of the gap between the floats when the float rises by providing a special water leakage reducing device between the floats. And a long-distance movable breakwater can be realized. Therefore, the normal height is low so as not to obstruct the landscape at normal times, it can rise at the abnormal tide level such as tsunami and storm surge and can demonstrate the wave prevention function, and it can be installed adjacent to over several hundred meters, It has excellent effects such as having water tightness and pressure resistance necessary for the connecting portion, smooth operation as a whole, and less need for repair.

以下、本発明の好ましい実施形態を、図面を参照して説明する。なお、各図において、共通する部分には同一の符号を付し、重複した説明を省略する。   Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. In each figure, common portions are denoted by the same reference numerals, and redundant description is omitted.

図1は、本発明による可動式防波堤の第1実施形態の斜視図である。この図に示すように、本発明による可動式防波堤10は、護岸外壁12、護岸内壁14、護岸連結部材16、防波フロート18および漏水低減装置20を備える。   FIG. 1 is a perspective view of a first embodiment of a movable breakwater according to the present invention. As shown in this figure, a movable breakwater 10 according to the present invention includes a revetment outer wall 12, a revetment inner wall 14, a revetment connecting member 16, a breakwater float 18, and a water leakage reduction device 20.

護岸外壁12は、津波や高潮などを受ける可能性のある護岸(この図で手前側)に沿って設置され、鉛直の第1内壁面12aを有する。
護岸内壁14は、護岸外壁12に隣接して平行に設置され、護岸外壁12の第1内壁面12aからほぼ一定の間隔を隔てた第2内壁面14aを有する。
護岸連結部材16は、護岸外壁12と護岸内壁14を連結する部材であり、護岸に沿って所定の間隔を隔てて複数が設けられる。
なお、護岸外壁12、護岸内壁14および護岸連結部材16は、全体が一体のコンクリート構造物であるのが好ましいが、本発明はこれに限定されず、一部をボルト等で連結してもよく、あるいは護岸に沿って一定のピッチで一体化したモジュールを互いに水密に連結してもよい。
The revetment outer wall 12 is installed along a revetment (front side in this figure) that may receive a tsunami or storm surge, and has a vertical first inner wall surface 12a.
The revetment inner wall 14 has a second inner wall surface 14 a that is installed in parallel adjacent to the revetment outer wall 12 and is spaced from the first inner wall surface 12 a of the revetment outer wall 12 by a substantially constant distance.
The revetment linking member 16 is a member that connects the revetment outer wall 12 and the revetment inner wall 14, and a plurality of revetment connection members 16 are provided along the revetment at a predetermined interval.
The revetment outer wall 12, the revetment inner wall 14, and the revetment connecting member 16 are preferably integrated concrete structures as a whole, but the present invention is not limited to this, and some of them may be connected with bolts or the like. Alternatively, modules integrated at a constant pitch along the revetment may be connected to each other in a watertight manner.

上述した構成により、上方から見て、第1内壁面12a、第2内壁面14a、および隣接する護岸連結部材16で囲まれる矩形空間11が形成される。また、護岸外壁12および護岸内壁14はそれぞれ連続した水密の壁であり、護岸に沿った両端部が図示しない両端連結部材で水密に連結されている。従って、第1内壁面12aと第2内壁面14aの間は、水密空間となり、雨天や異常潮位時(津波や高潮など)には内部に水が流入して貯まり、内部の水位が上昇するようになっている。   With the above-described configuration, a rectangular space 11 is formed that is surrounded by the first inner wall surface 12a, the second inner wall surface 14a, and the adjacent seawall connecting member 16 when viewed from above. Moreover, the revetment outer wall 12 and the revetment inner wall 14 are respectively continuous watertight walls, and both end portions along the revetment are watertightly connected by both end connecting members (not shown). Accordingly, a space between the first inner wall surface 12a and the second inner wall surface 14a becomes a watertight space, and in rainy weather or abnormal tide level (such as a tsunami or storm surge), the water flows into and accumulates, and the water level inside rises. It has become.

防波フロート18は、複数が一定の間隔を隔てて連続し、それぞれが第1内壁面12a、第2内壁面14a、および隣接する護岸連結部材16で囲まれる矩形空間に収容され、第1内壁面12aと第2内壁面14aの間に貯まる水の浮力でその上端18aが護岸外壁12の上面12bより上方まで浮上するようになっている。
漏水低減装置20は、隣接する防波フロート18の間に設けられ、その隙間からの漏水を低減する機能を有する。
A plurality of the breakwater floats 18 are continuously arranged at a predetermined interval, and each of the breakwater floats 18 is accommodated in a rectangular space surrounded by the first inner wall surface 12a, the second inner wall surface 14a, and the adjacent revetment linking member 16, and Due to the buoyancy of the water stored between the wall surface 12a and the second inner wall surface 14a, the upper end 18a of the water rises above the upper surface 12b of the seawall outer wall 12.
The water leakage reducing device 20 is provided between adjacent wave break floats 18 and has a function of reducing water leakage from the gap.

図2は、図1のA-A断面図である。この図に示すように、護岸連結部材16は、護岸外壁12と護岸内壁14の底部を連結する底部連結部材16aと、漏水低減装置20の下方に位置し防波フロート18の両側を連結する中間連結部材16bと、上述した両端部の図示しない両端連結部材とからなる。中間連結部材16bは、護岸に沿って所定の間隔を隔てて複数が設けられ、その間で防波フロート18が上下に自由に移動できる矩形空間11を形成している。
底部連結部材16aと中間連結部材16bはこの図では連続に一体成形されているが、その間に隙間を設けてもよい。
中間連結部材16bはその下方部に幅が広がる段付部16cを有し、防波フロート18が下降したときにその両端部を段付部16cで支持するようになっている。また、この下降位置において、防波フロート18の上端面18aは、この例では護岸外壁12の第1内壁面12aの上端高さと一致するように寸法が決められている。
段付部16cと底部連結部材16aとの間には、中空空間であるピット16dが設けられている。このピット16dは、各防波フロート18の下方に独立して設けてもよいが、この例では段付部16cに図示しない連通路が設けられ互いに連通し、点検等の作業の際に通り抜けができるようになっている。
2 is a cross-sectional view taken along the line AA in FIG. As shown in this figure, the revetment connecting member 16 includes a bottom connecting member 16 a that connects the bottom of the revetment outer wall 12 and the revetment inner wall 14, and an intermediate portion that is located below the water leakage reducing device 20 and connects both sides of the breakwater float 18. It consists of the connecting member 16b and the both-ends connecting member which is not shown of the both ends mentioned above. A plurality of intermediate connecting members 16b are provided at predetermined intervals along the revetment, and a rectangular space 11 in which the breakwater float 18 can freely move up and down is formed therebetween.
The bottom connecting member 16a and the intermediate connecting member 16b are integrally formed continuously in this figure, but a gap may be provided between them.
The intermediate connecting member 16b has a stepped portion 16c whose width is widened at the lower portion thereof, and both ends thereof are supported by the stepped portion 16c when the wave preventing float 18 is lowered. At this lowered position, the upper end surface 18a of the breakwater float 18 is dimensioned to coincide with the upper end height of the first inner wall surface 12a of the revetment outer wall 12 in this example.
A pit 16d, which is a hollow space, is provided between the stepped portion 16c and the bottom connecting member 16a. The pits 16d may be provided independently below each wave-breaking float 18, but in this example, a stepped portion 16c is provided with a communication path (not shown) and communicates with each other so that it does not pass through during inspection or the like. It can be done.

図3は、図2のB−B断面図である。この図に示すように、防波フロート18は、中空の水密金属箱であり、全体の比重が1より小さく、好ましくは0.5前後に設定され、海水の浮力で上方に浮上した場合、その全高のほぼ1/2が護岸外壁より上方まで浮上するようになっている。
すなわち、この例では、矩形空間11に海水が貯まり、防波フロート18が浮上した場合には、その上面18aが第1内壁面12aの上面12bよりさらに約3m上まで上昇するようになっている。
なお、防波フロート18は、内部点検用の開閉可能なマンホールを有していてもよい。また、中空の水密金属箱の代わりに、密度の小さい材料(例えばFRP等)で構成してもよい。さらに、完全に水密でなく、下面に開口を有してもよい。
3 is a cross-sectional view taken along the line BB in FIG. As shown in this figure, the breakwater float 18 is a hollow watertight metal box, and has an overall specific gravity smaller than 1, preferably set to around 0.5, and when it floats upward due to the buoyancy of seawater, Almost half of the total height rises above the revetment outer wall.
That is, in this example, when seawater accumulates in the rectangular space 11 and the breakwater float 18 floats, the upper surface 18a rises to about 3 m above the upper surface 12b of the first inner wall surface 12a. .
The breakwater float 18 may have an openable / closable manhole for internal inspection. Further, instead of the hollow watertight metal box, a material with a low density (for example, FRP) may be used. Furthermore, it may not be completely watertight and may have an opening on the lower surface.

この図において、護岸外壁12の第1内壁面12aと護岸内壁14の第2内壁面14aには、防波フロート18の上下動を案内するガイド13が設けられている。このガイド13は、例えば摩擦の小さい摺動材である。
また、護岸外壁12の第1内壁面12aと護岸内壁14の第2内壁面14aの上端部には、グレーチング板15が取り付けられ、防波フロート18との隙間を小さく規制して異物の侵入を防止し、人の歩行を容易にしている。
In this figure, guides 13 for guiding the vertical movement of the breakwater float 18 are provided on the first inner wall surface 12 a of the revetment outer wall 12 and the second inner wall surface 14 a of the revetment inner wall 14. This guide 13 is a sliding material with small friction, for example.
In addition, a grating plate 15 is attached to the upper end portions of the first inner wall surface 12a of the revetment outer wall 12 and the second inner wall surface 14a of the revetment inner wall 14, and the gap between the breakwater float 18 is restricted to reduce the intrusion of foreign matter. It prevents and makes people walking easier.

防波フロート18の下面には、ストッパーチェーン19の上端が固定され、その下端は底部連結部材16aに固定されている。ストッパーチェーン19の全長は、防波フロート18が浮上し、その上面18aが所定の高さ(この例では第1内壁面12aの上面12bよりさらに約3m上)まで上昇した際に、それ以上には浮上できない長さに設定されている。   The upper end of the stopper chain 19 is fixed to the lower surface of the wave preventing float 18, and the lower end thereof is fixed to the bottom connecting member 16a. The total length of the stopper chain 19 is more than that when the wave breaker floats up and its upper surface 18a rises to a predetermined height (in this example, about 3 m above the upper surface 12b of the first inner wall surface 12a). Is set to a length that cannot rise.

またこの図において、ピット16dには、排水用の主ポンプ8aが設けられ、さらに予備ポンプ8bが、第2内壁面14aより内側に設けられ、矩形空間11に貯まった海水や雨水を排水できるようになっている。なお、主ポンプ8aと予備ポンプ8bは、一方を省略することもできる。   Further, in this figure, a pit 16d is provided with a main pump 8a for drainage, and a spare pump 8b is provided on the inner side of the second inner wall surface 14a so that seawater and rainwater stored in the rectangular space 11 can be drained. It has become. One of the main pump 8a and the spare pump 8b can be omitted.

図4は、図2のC−C断面図である。この図において、(A)は防波フロートの上昇時、(B)は下降時である。
この例において、漏水低減装置20は、複数(この図で4枚)のスライド式補助扉21と防波フロートに設けられた端部支持金具22とからなる。端部支持金具22は、隣接する防波フロート18の端部に設けられた階段状の部材であり、各スライド式補助扉の両端部を支持する。
4枚のスライド式補助扉21は、隣接する防波フロート18の間に位置し護岸外壁12から護岸内壁14に向けて積層されている。
複数のスライド式補助扉21を構成する最上部の補助扉の上端は、護岸内壁14側に突出し、この突出部が端部支持金具22の階段状段付部と係合し、隣接する防波フロート18の昇降に追従して昇降するようになっている。
また、最下部の補助扉の下端は、この例では護岸外壁12側に突出し、護岸外壁12側のガイド13の下面と係合し、防波フロート18の昇降に追従せずにガイド13より下方に位置するようになっている。なお、最下部の補助扉の係合位置はこの例に限定されず、護岸外壁、護岸内壁又は護岸連結部材に連結されていればよい。
複数のスライド式補助扉21を構成する中間部の補助扉は、上下端に設けられた係合部(この例では上端が護岸内壁14側、下端が護岸外壁12側に突出している)の係合により、隣接する防波フロート18の昇降に追従しながら最上部と最下部の補助扉の間を塞ぐようになっている。
4 is a cross-sectional view taken along the line CC of FIG. In this figure, (A) is when the breakwater float is raised, and (B) is when it is lowered.
In this example, the water leakage reducing device 20 includes a plurality (four in this figure) of sliding auxiliary doors 21 and an end support fitting 22 provided on the wave-breaking float. The end support bracket 22 is a stepped member provided at the end of the adjacent wave-proof float 18 and supports both ends of each sliding auxiliary door.
The four sliding auxiliary doors 21 are positioned between adjacent wave break floats 18 and are stacked from the revetment outer wall 12 toward the revetment inner wall 14.
The upper end of the uppermost auxiliary door constituting the plurality of sliding auxiliary doors 21 protrudes to the revetment inner wall 14 side, and this protruding portion engages with the stepped stepped portion of the end support bracket 22 so as to be adjacent to the breakwater. The float 18 is moved up and down following the movement of the float 18.
Further, the lower end of the lowermost auxiliary door protrudes toward the revetment outer wall 12 in this example, engages with the lower surface of the guide 13 on the revetment outer wall 12 side, and follows the guide 13 without following up and down of the breakwater float 18. It is supposed to be located in. In addition, the engagement position of the lowermost auxiliary door is not limited to this example, and may be connected to the revetment outer wall, the revetment inner wall, or the revetment connecting member.
The intermediate auxiliary doors constituting the plurality of sliding auxiliary doors 21 are engaging portions (in this example, the upper end protrudes to the revetment inner wall 14 side and the lower end protrudes to the revetment outer wall 12 side) provided at the upper and lower ends. As a result, the space between the uppermost and lowermost auxiliary doors is closed while following up and down of the adjacent wave-breaking float 18.

図1〜図4の構成によれば、最上部の補助扉21の上端が、隣接する防波フロート18の昇降に追従して昇降し、その最下部の補助扉21の下端は昇降しない箇所に連結されており、中間部の補助扉21は上下端に設けられた係合部の係合により隣接する防波フロートの昇降に追従しながら最上部と最下部の補助扉の間を塞ぐので、その連結部に必要な水密性を確保できる。
また防波フロート18に設けられた端部支持金具22で、各スライド式補助扉21の両端部を支持するので、必要な耐圧性も確保できる。
さらに、隙間があるシンプルな構造であり、磨耗や消耗がほとんどないので、全体の作動をスムースにでき、かつ補修の必要性を低減又は無くすことができる。
1 to 4, the upper end of the uppermost auxiliary door 21 is raised and lowered following the raising and lowering of the adjacent wave preventing float 18, and the lower end of the lowermost auxiliary door 21 is not raised or lowered. The intermediate auxiliary door 21 is closed between the uppermost and lowermost auxiliary doors while following up and down of the adjacent wave-proof float by the engagement of the engaging portions provided at the upper and lower ends, The required water tightness can be secured at the connecting portion.
Moreover, since the both ends of each sliding type auxiliary door 21 are supported by the end support brackets 22 provided on the wave breaker float 18, the necessary pressure resistance can be ensured.
Furthermore, since it has a simple structure with a gap and there is almost no wear or wear, the overall operation can be made smooth and the need for repair can be reduced or eliminated.

図5は、本発明による可動式防波堤の第2実施形態の図2と同様の断面図である。また図6は、図5のC−C断面図(A)とD−D矢視図(B)である。   FIG. 5 is a cross-sectional view similar to FIG. 2 of the second embodiment of the movable breakwater according to the present invention. Moreover, FIG. 6 is CC sectional drawing (A) and DD arrow line view (B) of FIG.

この例において、漏水低減装置20は、隣接する防波フロート18の間に位置し、護岸外壁12から護岸内壁14に向けて所定の隙間を隔てて積層された複数(この例で4枚)の平板式補助扉23である。4枚の平板式補助扉23は、隣接する防波フロート18の側面に一端が交互に固定され、隣接する防波フロート18の昇降に追従してその間にラビリンスシールを形成するようになっている。
図5(B)に示すように、ガイド13は、この例ではT字型の断面を有し、摩擦の小さい摺動材で、防波フロート18のこの図で前後左右の動きを制限している。その他の構成は第1実施形態と同様である。
In this example, the water leakage reduction device 20 is located between adjacent wave break floats 18 and is laminated in a plurality of (four in this example) with a predetermined gap from the revetment outer wall 12 toward the revetment inner wall 14. This is a flat auxiliary door 23. One end of each of the four flat auxiliary doors 23 is alternately fixed to the side surface of the adjacent wave-breaking float 18, and a labyrinth seal is formed between the adjacent wave-breaking floats 18 following up and down. .
As shown in FIG. 5 (B), the guide 13 has a T-shaped cross section in this example, and is a sliding material with a small friction. Yes. Other configurations are the same as those of the first embodiment.

この構成により、隣接する防波フロート18の側面に一端が交互に固定された複数の平板式補助扉23が、所定の隙間を隔てて積層されてその間にラビリンスシールを形成するので、その連結部に必要な水密性を確保できる。
また各平板式補助扉23は、隣接する防波フロート18の側面に一端が交互に固定されているので、必要な耐圧性も確保できる。
さらに、隙間があるシンプルな構造であり、磨耗や消耗がほとんどないので、全体の作動をスムースにでき、かつ補修の必要性を低減又は無くすことができる。
With this configuration, a plurality of flat auxiliary doors 23 whose ends are alternately fixed to the side surfaces of adjacent wave-breaking floats 18 are stacked with a predetermined gap therebetween to form a labyrinth seal therebetween. The necessary water tightness can be secured.
Moreover, since each flat type auxiliary door 23 is being alternately fixed to the side surface of the adjacent wave-proof float 18, the required pressure | voltage resistance can also be ensured.
Furthermore, since it has a simple structure with a gap and there is almost no wear or wear, the overall operation can be made smooth and the need for repair can be reduced or eliminated.

図7は、本発明による可動式防波堤の第3実施形態の図2と同様の断面図である。また図8は、図7のC−C断面図であり、(A)は防波フロートの上昇時、(B)は下降時である。   FIG. 7 is a sectional view similar to FIG. 2 of the third embodiment of the movable breakwater according to the present invention. 8 is a cross-sectional view taken along the line C-C of FIG. 7, where (A) is when the breakwater float is raised and (B) is when it is lowered.

この例において、漏水低減装置20は、蛇腹式補助扉24であり、隣接する防波フロート18の間に位置し、護岸外壁12から護岸内壁14に向けて折り畳み可能に構成されている。また、隣接する防波フロート18は、その端部に蛇腹式補助扉24のヒンジ部15を支持するヒンジ部支持ガイド18bを有する。
すなわち、蛇腹式補助扉24を構成する最上部の補助扉24の上端は、そのヒンジ部両端がヒンジ部支持ガイド18bの上端位置に回転可能に取り付けられ、隣接する防波フロート18の昇降に追従して昇降するようになっている。
また最下部の補助扉24の下端も、そのヒンジ部両端がヒンジ部支持ガイド18bに嵌り、かつ固定部分(護岸外壁、護岸内壁又は護岸連結部材)に連結され、防波フロート18の昇降に追従せずに護岸外壁12の上面12bより下方に位置するようになっている。
さらに中間部の補助扉24は、上下端に設けられたヒンジ部の係合により最上部と最下部の補助扉の間を隣接する防波フロートの昇降に追従しながら塞ぐようになっている。その他の構成は第1実施形態と同様である。
In this example, the water leakage reducing device 20 is a bellows type auxiliary door 24, located between adjacent wave break floats 18, and configured to be foldable from the revetment outer wall 12 toward the revetment inner wall 14. Moreover, the adjacent wave-proof float 18 has the hinge part support guide 18b which supports the hinge part 15 of the bellows type auxiliary door 24 in the edge part.
That is, the upper end of the uppermost auxiliary door 24 constituting the bellows type auxiliary door 24 is rotatably attached to the upper end position of the hinge support guide 18b at both ends of the hinge portion, and follows up and down of the adjacent wave-proof float 18 And then comes up and down.
Also, the lower end of the lowermost auxiliary door 24 also has both ends of the hinge part fitted into the hinge part support guide 18b and connected to a fixed part (a seawall outer wall, a seawall inner wall or a seawall connecting member), and follows up and down of the breakwater float 18. Without being carried out, it is located below the upper surface 12b of the revetment outer wall 12.
Further, the auxiliary door 24 in the middle part is configured to close between the uppermost part and the lowermost auxiliary door while following up and down of the adjacent wave-proof float by the engagement of the hinge parts provided at the upper and lower ends. Other configurations are the same as those of the first embodiment.

この構成により、最上部の補助扉24の上端が、隣接する防波フロート18の昇降に追従して昇降し、その最下部の補助扉24の下端は昇降しない箇所(護岸外壁、護岸内壁又は護岸連結部材)に連結されており、中間部の補助扉24は上下端に設けられたヒンジ部の係合により最上部と最下部の補助扉の間を隣接する防波フロート18の昇降に追従しながら塞ぐので、その連結部に必要な水密性を確保できる。
また防波フロートに設けられたヒンジ部支持ガイド18bで、蛇腹式補助扉のヒンジ部25の両端部を支持するので、必要な耐圧性も確保できる。
さらに、隙間があるシンプルな構造であり、磨耗や消耗がほとんどないので、全体の作動をスムースにでき、かつ補修の必要性を低減又は無くすことができる。
With this configuration, the upper end of the uppermost auxiliary door 24 moves up and down following the raising and lowering of the adjacent wave breaker float 18, and the lower end of the lowermost auxiliary door 24 does not move up and down (the revetment outer wall, the revetment inner wall or the revetment) The auxiliary door 24 in the middle portion follows the raising and lowering of the adjacent wave-proof float 18 between the uppermost and lowermost auxiliary doors by the engagement of hinge portions provided at the upper and lower ends. Therefore, the water tightness necessary for the connecting portion can be secured.
Moreover, since the both ends of the hinge part 25 of a bellows type auxiliary door are supported by the hinge part support guide 18b provided in the wave-proof float, required pressure | voltage resistance can also be ensured.
Furthermore, since it has a simple structure with a gap and there is almost no wear or wear, the overall operation can be made smooth and the need for repair can be reduced or eliminated.

図9は、本発明による可動式防波堤の作動説明図である。この図において、(A)は正常時、(B)は津波等の異常潮位時、(C)は想定以上の異常潮位時を示している。
正常時には、図9(A)に示すように、護岸外壁12と護岸内壁14の間に形成される矩形空間11に防波フロート18が収容されており、景観を阻害しないように全高が低く抑えられている。
正常時に、護岸外壁12と護岸内壁14の間の空間11に雨水が流入した場合には、主ポンプ8aまたは予備ポンプ8bで排水し、防波フロート18の上昇を防止する。
FIG. 9 is an operation explanatory view of the movable breakwater according to the present invention. In this figure, (A) shows a normal time, (B) shows an abnormal tide level such as a tsunami, and (C) shows an abnormal tide level higher than expected.
During normal operation, as shown in FIG. 9A, the breakwater float 18 is housed in the rectangular space 11 formed between the revetment outer wall 12 and the revetment inner wall 14, and the overall height is kept low so as not to disturb the landscape. It has been.
When rainwater flows into the space 11 between the revetment outer wall 12 and the revetment inner wall 14 at normal times, the water is drained by the main pump 8a or the spare pump 8b, and the rise of the breakwater float 18 is prevented.

津波等の異常潮位時(B)(C)には、異常潮位時に第1内壁面12aと第2内壁面14aの間に水が貯まることにより、防波フロート18が護岸外壁12より上方まで浮上(上昇)して防波機能を発揮する。
図9(B)に示すように、空間11に水が貯まると、ストッパーチェーン19が伸びきり、防波フロート18を上昇位置に固定する。
図9(C)の示すように、想定される異常潮位を越える場合が起こった場合には、ある程度の海水が防波堤内に侵入するが、可動防波堤が無い場合に比べると防波堤内の水位上昇時間が遅らされ、住民の避難時間を確保することが可能となる。
また、水位が低下し、再度の津波等のおそれがなくなった時には、主ポンプ8aまたは予備ポンプ8bで排水し、防波フロート18を下降させることができる。
During abnormal tide levels such as tsunamis (B) and (C), water is stored between the first inner wall surface 12a and the second inner wall surface 14a during the abnormal tide level, so that the breakwater float 18 rises above the revetment outer wall 12. (Rising) to demonstrate the wave-proof function.
As shown in FIG. 9 (B), when water is stored in the space 11, the stopper chain 19 is fully extended, and the wave-breaking float 18 is fixed at the raised position.
As shown in FIG. 9C, when a case where the assumed abnormal tide level is exceeded, a certain amount of seawater enters the breakwater, but the water level rise time in the breakwater is higher than when there is no movable breakwater. Will be delayed and it will be possible to secure evacuation time for residents.
Further, when the water level drops and there is no fear of another tsunami or the like, the main pump 8a or the spare pump 8b can drain the water, and the wave-breaking float 18 can be lowered.

なお、本発明は上述した実施例及び実施形態に限定されず、本発明の要旨を逸脱しない範囲で種々変更できることは勿論である。   In addition, this invention is not limited to the Example and embodiment mentioned above, Of course, it can change variously in the range which does not deviate from the summary of this invention.

本発明による可動式防波堤の第1実施形態の斜視図である。1 is a perspective view of a first embodiment of a movable breakwater according to the present invention. 図1のA-A断面図である。It is AA sectional drawing of FIG. 図2のB−B断面図である。It is BB sectional drawing of FIG. 図2のC−C断面図である。It is CC sectional drawing of FIG. 本発明による可動式防波堤の第2実施形態の図2と同様の断面図である。It is sectional drawing similar to FIG. 2 of 2nd Embodiment of the movable breakwater by this invention. 図5のC−C断面図(A)とD−D矢視図(B)である。They are CC sectional drawing (A) and DD arrow line view (B) of FIG. 本発明による可動式防波堤の第3実施形態の図2と同様の断面図である。It is sectional drawing similar to FIG. 2 of 3rd Embodiment of the movable breakwater by this invention. 図7のC−C断面図である。It is CC sectional drawing of FIG. 本発明による可動式防波堤の作動説明図である。It is operation | movement explanatory drawing of the movable breakwater by this invention. 特許文献1の「浮力式床面止水装置」の構成図である。1 is a configuration diagram of a “buoyancy type floor water stop device” of Patent Document 1. FIG. 特許文献2の「防波堤」の構成図である。2 is a configuration diagram of “breakwater” in Patent Document 2. FIG.

符号の説明Explanation of symbols

10 可動式防波堤、11 矩形空間、
12 護岸外壁、12a 第1内壁面、12b 上面、13 ガイド、
14 護岸内壁、14a 第2内壁面、15 グレーチング板、
16 護岸連結部材、16a 底部連結部材、16b 中間連結部材、
16c 段付部、16d ピット、
18 防波フロート、18a 上端、18b ヒンジ部支持ガイド、
19 ストッパーチェーン、
20 漏水低減装置、21 スライド式補助扉、22 端部支持金具、
23 平板式補助扉、24 蛇腹式補助扉
10 movable breakwater, 11 rectangular space,
12 revetment outer wall, 12a first inner wall surface, 12b upper surface, 13 guide,
14 revetment inner wall, 14a 2nd inner wall surface, 15 grating board,
16 seawall connecting member, 16a bottom connecting member, 16b intermediate connecting member,
16c stepped part, 16d pit,
18 Wave breaker, 18a Upper end, 18b Hinge support guide,
19 Stopper chain,
20 Water leakage reduction device, 21 Sliding auxiliary door, 22 End support bracket,
23 Flat auxiliary door, 24 bellows auxiliary door

Claims (4)

護岸に沿って設置され鉛直の第1内壁面を有する護岸外壁と、該護岸外壁に隣接して平行に設置され前記第1内壁面からほぼ一定の間隔を隔てた第2内壁面を有する護岸内壁と、護岸外壁と護岸内壁を護岸に沿って所定の間隔を隔てて連結する複数の護岸連結部材と、前記第1内壁面、第2内壁面、および隣接する護岸連結部材で囲まれる矩形空間に収容され第1内壁面と第2内壁面の間に貯まる水の浮力で護岸外壁より上方まで浮上可能な複数の防波フロートと、隣接する防波フロート間に設けられその隙間からの漏水を低減する漏水低減装置とを備えたことを特徴とする津波・高潮対策用可動式防波堤。   A revetment outer wall installed along the revetment and having a vertical first inner wall surface, and a revetment inner wall having a second inner wall surface installed in parallel adjacent to the revetment outer wall and spaced from the first inner wall surface by a substantially constant distance And a plurality of revetment connecting members that connect the revetment outer wall and the revetment inner wall at predetermined intervals along the revetment, and a rectangular space surrounded by the first inner wall surface, the second inner wall surface, and the adjacent revetment connection member. Reduces water leakage from a plurality of wave-breaking floats that can be raised above the revetment outer wall by the buoyancy of water stored between the first inner wall surface and the second inner wall surface and between adjacent wave-breaking floats Movable breakwater for tsunami and storm surge countermeasures, which is equipped with a water leakage reduction device. 前記漏水低減装置は、隣接する防波フロート間に位置し護岸外壁から護岸内壁に向けて積層された複数のスライド式補助扉であり、
該複数のスライド式補助扉を構成する最上部の補助扉の上端は、隣接する防波フロートの昇降に追従して昇降し、その最下部の補助扉の下端は前記護岸外壁、護岸内壁又は護岸連結部材に連結され、中間部の補助扉は上下端に設けられた係合部の係合により隣接する防波フロートの昇降に追従しながら最上部と最下部の補助扉の間を塞ぐようになっており、
前記隣接する防波フロートは、その端部に各スライド式補助扉の両端部を支持する端部支持金具を有する、ことを特徴とする請求項1に記載の津波・高潮対策用可動式防波堤。
The water leakage reduction device is a plurality of sliding auxiliary doors that are positioned between adjacent wave break floats and stacked from the revetment outer wall toward the revetment inner wall,
The upper end of the uppermost auxiliary door constituting the plurality of sliding type auxiliary doors is moved up and down following the raising and lowering of the adjacent wave breaker float, and the lower end of the lowermost auxiliary door is the revetment outer wall, revetment inner wall or revetment Connected to the connecting member, the auxiliary door at the middle part closes between the uppermost and lowermost auxiliary doors while following up and down of the adjacent wave-proof float by the engagement of the engaging parts provided at the upper and lower ends And
2. The movable breakwater for tsunami and storm surge prevention according to claim 1, wherein the adjacent breakwater float has end support brackets that support both ends of each sliding auxiliary door at an end thereof.
前記漏水低減装置は、隣接する防波フロート間に位置し護岸外壁から護岸内壁に向けて所定の隙間を隔てて積層された複数の平板式補助扉であり、
該複数の平板式補助扉は、隣接する防波フロートの側面に一端が交互に固定され、隣接する防波フロートの昇降に追従してその間にラビリンスシールを形成する、ことを特徴とする請求項1に記載の津波・高潮対策用可動式防波堤。
The water leakage reduction device is a plurality of flat plate auxiliary doors that are positioned between adjacent wave break floats and stacked with a predetermined gap from the revetment outer wall toward the revetment inner wall,
The plurality of flat plate type auxiliary doors are alternately fixed at one side to the side surface of adjacent wave-breaking floats, and follow up and down of the adjacent wave-breaking floats to form a labyrinth seal therebetween. The movable breakwater for tsunami and storm surge prevention described in 1.
前記漏水低減装置は、隣接する防波フロート間に位置し護岸外壁から該護岸外壁に向けて折り畳み可能な蛇腹式補助扉であり、
該蛇腹式補助扉を構成する最上部の補助扉の上端は、隣接する防波フロートの昇降に追従して昇降し、その最下部の補助扉の下端は前記護岸外壁、護岸内壁又は護岸連結部材に連結され、中間部の補助扉は上下端に設けられたヒンジ部の係合により最上部と最下部の補助扉の間を隣接する防波フロートの昇降に追従しながら塞ぐようになっており、
前記隣接する防波フロートは、その端部に蛇腹式補助扉のヒンジ部を支持するヒンジ部支持ガイドを有する、ことを特徴とする請求項1に記載の津波・高潮対策用可動式防波堤。
The water leakage reduction device is a bellows type auxiliary door that is located between adjacent wave break floats and can be folded from the outer wall to the outer wall.
The upper end of the uppermost auxiliary door constituting the bellows type auxiliary door moves up and down following the raising and lowering of the adjacent wave breaker float, and the lower end of the lowermost auxiliary door is the revetment outer wall, revetment inner wall or revetment connecting member The intermediate auxiliary door is closed by following the elevation of the adjacent wave breaker float between the uppermost and lowermost auxiliary doors by the engagement of hinges provided at the upper and lower ends. ,
2. The movable breakwater for tsunami and storm surge prevention according to claim 1, wherein the adjacent breakwater float has a hinge portion support guide that supports a hinge portion of a bellows type auxiliary door at an end portion thereof.
JP2004254156A 2004-09-01 2004-09-01 Movable breakwater for countermeasure against seismic sea wave/high tide Pending JP2006070536A (en)

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JP2008069566A (en) * 2006-09-14 2008-03-27 Masatoshi Okura Movable impervious wall
JP2008115588A (en) * 2006-11-02 2008-05-22 Penta Ocean Construction Co Ltd Tsunami disaster prevention structure
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JP2010007355A (en) * 2008-06-26 2010-01-14 Ohbayashi Corp Movable breakwater
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JP2013087574A (en) * 2011-10-21 2013-05-13 Nippon Steel & Sumitomo Metal Breakwater device
JP2013194403A (en) * 2012-03-19 2013-09-30 Marushima Sangyo Kk Floating tide gate for embankment
CN103046515A (en) * 2012-12-24 2013-04-17 中国核电工程有限公司 Water-retaining wall for essential service water overflow well of coastal nuclear power plant
JP2015140562A (en) * 2014-01-28 2015-08-03 株式会社 林物産発明研究所 Dike of floating when increasing water
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