JP2956955B2 - River revetment structures - Google Patents
River revetment structuresInfo
- Publication number
- JP2956955B2 JP2956955B2 JP6284369A JP28436994A JP2956955B2 JP 2956955 B2 JP2956955 B2 JP 2956955B2 JP 6284369 A JP6284369 A JP 6284369A JP 28436994 A JP28436994 A JP 28436994A JP 2956955 B2 JP2956955 B2 JP 2956955B2
- Authority
- JP
- Japan
- Prior art keywords
- river
- steel sheet
- revetment
- baffle
- wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Landscapes
- Artificial Fish Reefs (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
- Revetment (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、鋼矢板等による直立状
の護岸において、魚類等の休憩や避難場所を形成できる
ようにした河川の護岸構造物に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a revetment structure for a river, which can form a break or an evacuation site for fish and the like in an upright revetment made of steel sheet pile or the like.
【０００２】[0002]
【従来の技術及び発明が解決しようとする課題】都市部
等における河川では、護岸のスペースが狭いことから、
傾斜護岸よりも直立状壁面の護岸が多く用いられてい
る。直立状護岸は、従来、例えば鋼矢板やコンクリート
によるもので、大多数は平面状の壁面をなしている。そ
のため、護岸付近には魚類の休憩場所や洪水時の避難場
所となるのに重要な淵とその周りにバリア的な役割を果
す瀬となる部分が殆んどない、といった状態である。2. Description of the Related Art In rivers in urban areas and the like, the space for revetment is narrow.
Revetments with upright walls are more commonly used than sloped revetments. Upright seawalls have hitherto been made of, for example, steel sheet pile or concrete, and most of them have planar wall surfaces. Therefore, near the revetment, there are few pools that play an important role as barriers, which are important for fish rest areas and evacuation areas during floods.
【０００３】魚類等の生息場としては、瀬や淵のような
流速の変化を有していることが重要である。しかし、上
述したように直立状護岸は、壁面が平面状或はそれに近
い形であるため、魚類の休憩や避難ができず、生態系の
保全が困難な状況にある。It is important that a habitat for fish and the like has a change in flow velocity, such as a current or a deep flow. However, as described above, the wall of the upright seawall has a planar shape or a shape close thereto, so that fish cannot be rested or evacuated, and it is difficult to preserve the ecosystem.
【０００４】本発明は、上述した問題にかんがみ、河川
の直立状の護岸において、瀬や淵のような流速の変化し
た個所を形成することができ、魚類等が休憩や避難ので
きる場所が得られるようにした護岸構造物を提供しよう
とするものである。[0004] In view of the above-mentioned problems, the present invention makes it possible to form a place where the flow velocity has changed, such as a current or a deep sea, on a bank of an upright river, so that a place where fish and the like can rest and evacuate is obtained. It is intended to provide a revetment structure that can be used.
【０００５】[0005]
【問題を解決するための手段】上記の目的を達成するた
めの本発明の構成について、実施例に対応する図面を参
照して説明すると、請求項１の構造物は、鋼矢板１等に
より立設された護岸壁Ａの河川側の壁面に、上下方向及
びまたは長手方向に間隔をおいて、複数の、水流を横切
る方向に延長する阻流板４，４を突設し、阻流板４の下
流側に、流速の緩和領域を形成できるようにしたことを
特徴とするものである。The structure of the present invention for achieving the above object will be described with reference to the drawings corresponding to the embodiments. The structure of claim 1 is constituted by a steel sheet pile 1 or the like. river side of the wall surface of the set have been revetment walls a, vertical and or at intervals in the longitudinal direction, a plurality of the baffle 4, 4 extending in a direction transverse to the water flow projecting, baffle 4 Under
It is characterized in that a flow velocity relaxation region can be formed on the flow side .
【０００６】また、請求項２の構造物は、請求項１のも
のにおいて、護岸壁ＡをＵ形鋼矢板１，１の連結により
形成し、その河川側の壁面における鋼矢板１の出張った
台面部３に、水流を横切る方向に延長する阻流板４を突
設したことを特徴とするものである。[0006] The structure of claim 2 is the same as that of claim 1.
In, the revetment wall A is connected with the U-shaped steel sheet piles 1,1
Formed and went on a business trip of steel sheet pile 1 on the river side wall
A baffle plate 4 extending in a direction crossing the water flow is projected on the base 3.
It is characterized by having been provided .
【０００７】また、請求項３の構造物は、請求項１また
は２のものにおいて、上記阻流板４の先端に、下流方向
に延長する遮蔽板１０を設けたことを特徴とするもので
ある。[0007] The structure of claim 3 provides the structure of claim 1 or
2 is characterized in that a shielding plate 10 extending downstream is provided at the tip of the baffle plate 4.
【０００８】[0008]
【作用】本発明によれば、護岸壁に阻流板を突設するこ
とにより、阻流板の下流側に、魚類の生息や休憩、洪水
時の避難に適した、よどみや淵などに相応する、流速の
緩和された流域が容易に作り出される。それによって、
河川の生態系の保全がなされる。According to the present invention, by installing a baffle on a revetment wall, the downstream side of the breeze is suitable for stagnation and abyss, which is suitable for fish habitation, rest, and evacuation during floods. A basin with a reduced flow velocity is easily created. Thereby,
The river ecosystem is preserved.
【０００９】[0009]
【実施例】以下、本発明の実施例について図面を参照し
て説明する。図１は鋼矢板の連設による護岸構造物を例
示した平面図、図２は同斜面図で、図中Ａは護岸壁、Ｂ
は河川である。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view illustrating a revetment structure formed by connecting steel sheet piles in succession, FIG.
Is a river.
【００１０】護岸壁Ａは、一般に使用されているＵ形の
鋼矢板１の多数を、互にそれらの両端縁に設けられた継
手２，２を嵌合、連結して形成され、その下部は地盤に
根入れして立設されている。また、護岸壁Ａには、図示
を略したが、従来公知のように、その長手方向に延長す
る鋼材を結合して補強し、或は地面Ｃ側にアンカー材を
打設してやることができる。The revetment wall A is formed by fitting and connecting a large number of commonly used U-shaped steel sheet piles 1 with joints 2 and 2 provided at both end edges thereof. It is erected on the ground. Further, although not shown, the revetment wall A can be reinforced by connecting a steel material extending in the longitudinal direction of the revetment wall A, or by placing an anchor material on the ground C side, as is conventionally known.
【００１１】上記の鋼矢板１，１の連設による護岸壁Ａ
は、鋼矢板１の形状から、壁面は縦縞状に凹凸をなして
いるが、その凹凸は、河川の流速に影響を及ぼさないほ
どの小さなものであるから、この場合、護岸壁Ａの壁面
全体としては平面状であるとみることができる。The revetment wall A by connecting the above-mentioned steel sheet piles 1 and 1 continuously.
Is made up of irregularities in the form of vertical stripes due to the shape of the steel sheet pile 1, but the irregularities are so small that they do not affect the flow velocity of the river. Can be regarded as planar.
【００１２】護岸壁Ａを構成する多くの鋼矢板１，１の
うち、河川Ｂ側に出張っている所要の鋼矢板１には、そ
の出張った台面部３に、河川Ｂの水流を横切る方向に延
長する阻流板４の複数が、間隔をおいて突設されてい
る。この阻流板４は、例えば図示のように四角形に形成
されており、護岸壁Ａの壁面に直交する方向から、先端
が下流側に向く傾斜した方向までの適宜な角度θで突出
され、通常、その角度は４５〜９０度が好適である。ま
た、上記複数の阻流板４，４は、護岸壁Ｂの上下方向或
は長手方向に適宜列設され、または図２に示すような千
鳥状等に配設される。Among the many steel sheet piles 1 and 1 constituting the revetment wall A, the required steel sheet pile 1 traveling on the river B side is placed on the traveled platform 3 in the direction crossing the water flow of the river B. A plurality of extending baffle plates 4 protrude at intervals. The baffle plate 4 is formed in, for example, a rectangular shape as shown in the figure, and is protruded at an appropriate angle θ from a direction orthogonal to the wall surface of the revetment wall A to a direction in which the tip is inclined downstream. The angle is preferably 45 to 90 degrees. Further, the plurality of baffle plates 4 and 4 are appropriately arranged in the vertical direction or the longitudinal direction of the revetment wall B, or are arranged in a staggered manner as shown in FIG.
【００１３】阻流板４の鋼矢板１への取付けは、水中溶
接によれば容易に行うことができる。また、図３に示す
ように、鋼矢板１の方にあらかじめアングル材５，５を
対設して係合溝６を形成させ、阻流板４はその基端に係
合用のプレート７を設けて、プレート７を係合溝６に挿
入して取付けることもできる。なお、この場合、係合溝
６の下端は、阻流板４が落下しないように閉塞しておく
のがよい。護岸壁Ａがコンクリート製である場合には、
図４に示すように、阻流板４の基端に巾広の取付板８を
設け、この取付板８を通してアンカーボルト９，９によ
り固定するのがよい。The baffle 4 can be easily attached to the steel sheet pile 1 by underwater welding. As shown in FIG. 3, the steel sheet pile 1 is provided with the angle members 5 and 5 in advance to form the engagement grooves 6, and the baffle plate 4 is provided with the engagement plate 7 at the base end thereof. Thus, the plate 7 can be inserted and attached to the engagement groove 6. Note that, in this case, the lower end of the engagement groove 6 is preferably closed so that the baffle plate 4 does not fall. When the revetment wall A is made of concrete,
As shown in FIG. 4, a wide mounting plate 8 is preferably provided at the base end of the baffle plate 4, and fixed by anchor bolts 9, 9 through the mounting plate 8.
【００１４】上記のように、阻流板４を突設した場合、
護岸近くの水流速Ｖ１に対して、阻流板４の先端近くの
流速は若干加速されてＶ２となるが、阻流板４の下流側
には、Ｖ２のほぼ２分の１に緩和された流速Ｖ３の渦状
の緩流域（淵、よどみ区間）Ｘが相当の長さＬにわたっ
て作り出される。これに関して行った実験例では、Ｖ１
＝１４５ｃｍ／ｓの流速の鋼矢板護岸の河川に、５０ｃ
ｍ角の阻流板４を、取付角θ＝６０〜９０度で突設した
場合、Ｖ２≒１．１Ｖ１となり、阻流板４の下流側に
は、Ｖ３≦０．５Ｖ２の緩流域ＸがほぼＬ＝２５０ｃｍ
の長さにわたり形成されることが認められた。この緩流
域Ｘでは、流速が十分緩和されており、魚類の生息に適
した場所が局所的に確保される。As described above, when the baffle 4 is protruded,
Relative water flow rate V 1 of the nearby seawall, near the flow velocity tip of the baffle 4 is a somewhat accelerated by V 2, on the downstream side of the baffle 4, in approximately one half of the V 2 slow basin (edge stagnation interval) of relaxed spiral flow velocity V 3 is X is produced over a substantial length L. In an experimental example conducted in this regard, V 1
= 145cm / s, 50c
When the m-angle baffle 4 is protruded at the mounting angle θ = 60 to 90 degrees, V 2 ≒ 1.1 V 1 , and V 3 ≦ 0.5 V 2 downstream of the baffle 4 Slow flow area X is almost L = 250cm
Formed over the length of. In the gentle flow region X, the flow velocity is sufficiently reduced, and a place suitable for fish inhabitation is locally secured.
【００１５】なお、護岸が図示のように、Ｕ形の鋼矢板
１の連設によるものであれば、阻流板４の下流側には、
阻流板４を突設した鋼矢板１に連結した鋼矢板１による
凹み部分ｘが形成されているため、緩流域Ｘはそのふと
ころが深くなり、より大きな領域が形成できることにな
る。If the revetment is formed by a series of U-shaped steel sheet piles 1 as shown in FIG.
Since the recess x is formed by the steel sheet pile 1 connected to the steel sheet pile 1 on which the baffle 4 is protruded, the gentle flow area X has a deeper portion, so that a larger area can be formed.
【００１６】図５、図６は、本発明の他の実施例を示し
たもので、上記阻流板４の先端に、下流側に延長する遮
蔽板１０が、河川の流れ方向に沿うようにして設けられ
ている。この実施例のものでは、阻流板４と遮蔽板１０
とに囲まれた緩流域Ｘの巾及び長さＬを大きくとること
ができるとともに、緩流域Ｘ内流速もより緩和される。
なお、この実施例の場合、阻流板４と遮蔽板１０とを一
体のものとして折曲或は弧状に湾曲して形成することも
可能である。FIGS. 5 and 6 show another embodiment of the present invention. A shield plate 10 extending downstream is provided at the tip of the baffle plate 4 so as to extend along the flow direction of the river. It is provided. In this embodiment, the baffle plate 4 and the shielding plate 10
, The width and length L of the gentle flow region X can be increased, and the flow velocity in the gentle flow region X is further reduced.
In the case of this embodiment, the baffle plate 4 and the shielding plate 10 may be formed integrally and bent or curved in an arc shape.
【００１７】[0017]
【発明の効果】以上説明したように、請求項１の護岸構
造物は、護岸壁に阻流板を突設したものであるから、阻
流板の下流側に相当範囲にわたり、よどみや淵に相応す
る緩流域を容易に作り出すことができ、魚類等生息、休
憩や洪水時の避難場が確保される。そして、構造は極め
て簡単であるから、経済的にすぐれている。As described above, the revetment structure according to the first aspect of the present invention comprises a revetment wall with a baffle projecting therefrom. Corresponding gentle basins can be easily created, and fish and other habitats, breaks and flood shelters are secured. And since the structure is extremely simple, it is economically excellent.
【００１８】また、請求項２の護岸構造物は、阻流板を
Ｕ形鋼矢板の出張った台面に突設したものであるから、
緩流域の範囲が大となる。In the revetment structure according to the second aspect of the present invention, the baffle is projected from a U-shaped steel sheet pile on a business trip.
The range of the gentle basin becomes large.
【００１９】また、請求項３の護岸構造物は、上記阻流
板の先端に遮蔽板が延設されたもであるから、上記の効
果に加え、緩流域の範囲をより大きく作り出すことがで
きる。In the revetment structure according to the third aspect of the present invention, since the shielding plate is provided at the tip of the baffle plate, in addition to the above-described effects, the range of the gentle flow area can be made larger. .
【図１】本発明の一実施例を示す要部の平面図である。FIG. 1 is a plan view of a main part showing one embodiment of the present invention.
【図２】同斜視図である。FIG. 2 is a perspective view of the same.
【図３】阻流板の他の取付例を示す斜視図である。FIG. 3 is a perspective view showing another example of mounting the baffle plate.
【図４】同さらに他の例を示す斜視図である。FIG. 4 is a perspective view showing still another example.
【図５】本発明の他の実施例を示す要部の平面図であ
る。FIG. 5 is a plan view of a main part showing another embodiment of the present invention.
【図６】同斜視図である。FIG. 6 is a perspective view of the same.
Ａ 護岸壁 Ｂ 河川 １ 鋼矢板 ２ 継手 ３ 台面部 ４ 阻流板 ５ アングル ６ 係合溝 ７ プレート ８ 取付板 ９ アンカーボルト １０ 遮蔽板 A Revetment wall B River 1 Steel sheet pile 2 Joint 3 Base surface 4 Disturbance plate 5 Angle 6 Engagement groove 7 Plate 8 Mounting plate 9 Anchor bolt 10 Shield plate
フロントページの続き (73)特許権者 000002118 住友金属工業株式会社 大阪府大阪市中央区北浜４丁目５番33号 (73)特許権者 000004123 日本鋼管株式会社 東京都千代田区丸の内一丁目１番２号 (72)発明者 鳥崎 肇一 東京都台東区台東一丁目６番４号 財団 法人 土木研究センタ−内 (72)発明者 篠原 雅樹 東京都千代田区内幸町２丁目２番３号 川崎製鉄株式会社 東京本社内 (72)発明者 昇 健次 千葉県市川市高谷新町４ 株式会社クボ タ 市川工場内 (72)発明者 坂田 豊 東京都千代田区大手町二丁目６番３号 新日本製鐵株式会社内 (72)発明者 飯田 久雄 大阪市中央区北浜４丁目５番33号 住友 金属工業株式会社内 (72)発明者 勝谷 雅彦 東京都千代田区丸の内一丁目１番２号 日本鋼管株式会社内 (56)参考文献 特開 平３−286011（ＪＰ，Ａ) (58)調査した分野(Int.Cl.6，ＤＢ名) E02B 3/12 A01K 61/00 313 E02B 3/06 301 E02D 5/04 Continued on the front page (73) Patent holder 000002118 Sumitomo Metal Industries Co., Ltd. 4-5-33 Kitahama, Chuo-ku, Osaka-shi, Osaka (73) Patent holder 000004123 Nippon Kokan Co., Ltd. 1-1-2 Marunouchi, Chiyoda-ku, Tokyo, Japan (72) Inventor: Hajiichi Torizaki 1-6-4 Taito, Taito-ku, Tokyo Inside the Civil Engineering Research Center (72) Inventor: Masaki Shinohara 2-3-2 Uchisaiwaicho, Chiyoda-ku, Tokyo Kawasaki Steel Corporation Headquarters (72) Inventor Kenji Noboru 4 Takatani Shinmachi, Ichikawa-shi, Chiba Prefecture Kubota Ichikawa Plant Co., Ltd. (72) Inventor Yutaka Sakata 2-6-1 Otemachi, Chiyoda-ku, Tokyo Nippon Steel Corporation ( 72) Inventor Hisao Iida 4-5-33 Kitahama, Chuo-ku, Osaka City Inside Sumitomo Metal Industries, Ltd. (72) Inventor Masahiko Katsutani 1-2-1, Marunouchi, Chiyoda-ku, Tokyo Inside Nippon Kokan Co., Ltd. (56) Reference Document JP-flat 3-286011 (JP, a) (58 ) investigated the field (Int.Cl. 6, B name) E02B 3/12 A01K 61/00 313 E02B 3/06 301 E02D 5/04
Claims (3)
側の壁面に、上下方向及びまたは長手方向に間隔をおい
て、複数の、水流を横切る方向に延長する阻流板を突設
し、阻流板の下流側に、流速の緩和領域を形成できるよ
うにしたことを特徴とする、河川の護岸構造物。1. A plurality of baffles extending in a direction crossing a water flow at intervals in a vertical direction and / or a longitudinal direction on a river wall of a seawall constructed by steel sheet piles or the like. In addition, a flow velocity relaxation area can be formed downstream of the baffle plate.
A revetment structure for a river, characterized by the fact that it has been cut .
し、その河川側の壁面における鋼矢板の出張った台面部
に、水流を横切る方向に延長する阻流板を突設したこと
を特徴とする、請求項 １記載の河川の護岸構造物。 2. A revetment wall is formed by connecting U-shaped steel sheet piles.
The steel sheet pile on the river side wall surface
A baffle that extends in the direction across the water flow
The revetment structure for a river according to claim 1, wherein:
蔽板を設けたことを特徴とする、請求項１または２記載
の河川の護岸構造物。 3. The revetment structure for a river according to claim 1, wherein a shield plate extending in a downstream direction is provided at a tip of the baffle plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6284369A JP2956955B2 (en) | 1994-10-24 | 1994-10-24 | River revetment structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6284369A JP2956955B2 (en) | 1994-10-24 | 1994-10-24 | River revetment structures |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08120643A JPH08120643A (en) | 1996-05-14 |
| JP2956955B2 true JP2956955B2 (en) | 1999-10-04 |
Family
ID=17677694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6284369A Expired - Lifetime JP2956955B2 (en) | 1994-10-24 | 1994-10-24 | River revetment structures |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2956955B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113653009B (en) * | 2021-09-06 | 2022-12-20 | 浙江钱塘江水利建筑工程有限公司 | Ecological environment-friendly revetment and construction method thereof |
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1994
- 1994-10-24 JP JP6284369A patent/JP2956955B2/en not_active Expired - Lifetime
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| Publication number | Publication date |
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| JPH08120643A (en) | 1996-05-14 |
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