JPH108433A - Temporarily constructed water cut-off structure - Google Patents
Temporarily constructed water cut-off structureInfo
- Publication number
- JPH108433A JPH108433A JP8161723A JP16172396A JPH108433A JP H108433 A JPH108433 A JP H108433A JP 8161723 A JP8161723 A JP 8161723A JP 16172396 A JP16172396 A JP 16172396A JP H108433 A JPH108433 A JP H108433A
- Authority
- JP
- Japan
- Prior art keywords
- bag
- water
- bag body
- water cut
- bags
- 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.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
- E02B3/122—Flexible prefabricated covering elements, e.g. mats, strips
- E02B3/127—Flexible prefabricated covering elements, e.g. mats, strips bags filled at the side
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/10—Dams; Dykes; Sluice ways or other structures for dykes, dams, or the like
- E02B3/106—Temporary dykes
- E02B3/108—Temporary dykes with a filling, e.g. filled by water or sand
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Barrages (AREA)
- Revetment (AREA)
Abstract
Description
【0001】[0001]
【発明の技術分野】この発明は、河川などを一時的に仕
切ったり止水するために用いる構造物に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure used for temporarily dividing a river or the like or stopping water.
【0002】[0002]
【従来の技術】河川等の止水用として古くから土嚢が用
いられてきたが、言うまでもなく土嚢の作製には多くの
時間、労力を要し、作業性も非常に悪い。2. Description of the Related Art Sandbags have been used for stopping water in rivers and the like for a long time. Needless to say, the production of sandbags requires a lot of time and labor, and the workability is very poor.
【0003】[0003]
【発明の課題】そこで、特開昭56−85012号公報
には、膨脹、収縮可能の袋体に可撓性膜を固着し、袋体
を河床に設置して前記可撓性膜を河床に埋め込むか、或
は杭や錘で固定し、袋体内に流体を供給することにより
膨脹させて水をせき止める手段が提案されている。Therefore, Japanese Patent Application Laid-Open No. 56-85012 discloses a flexible membrane fixed to an inflatable and contractible bag body, and the bag body is installed on a riverbed so that the flexible membrane is attached to the riverbed. Means have been proposed for embedding or fixing with stakes or weights, and expanding by supplying fluid into the bag body to block the water.
【0004】このような袋体は、収縮させると運搬が容
易であり、敷設する場合も袋体につながった可撓性膜を
固定するだけでよいから、作業性もよくコスト的にも土
嚢に比較すれば極めて安価である。[0004] Such a bag is easy to transport when contracted, and when laying it, it is only necessary to fix the flexible membrane connected to the bag. It is extremely cheap by comparison.
【0005】ところが、河床の地盤が軟弱な場合には固
定が難しく、また固定作業自体も面倒である。[0005] However, when the ground of the riverbed is soft, fixing is difficult, and the fixing operation itself is troublesome.
【0006】そこで、この発明の課題は、固定作業をな
くし、設置するだけで止水を可能にしようとすることで
ある。[0006] Therefore, an object of the present invention is to eliminate the fixing work and to enable water stoppage only by installation.
【0007】[0007]
【課題の解決手段】上記の課題を解決するために、第1
の発明の止水構造物は、気密な可撓性袋体より成り、膨
脹時の幅が高さの2倍程度である筒状をなす構成を採用
したのである。[MEANS FOR SOLVING PROBLEMS] In order to solve the above-mentioned problems, first,
The waterproof structure according to the invention of the present invention employs an airtight flexible bag, and has a tubular configuration whose width when inflated is about twice the height.
【0008】前記袋体の底面に弾性シートを固着してお
くことができる。[0008] An elastic sheet can be fixed to the bottom surface of the bag body.
【0009】第2の発明の止水用構造物は、気密で膨
脹、収縮可能な止水用袋体と支持用袋体より成り、これ
らの袋体の長さ方向に対向する面を互に接続した構成を
採用したのである。A water-stopping structure according to a second aspect of the present invention comprises an air-tight, inflatable and contractible water-stopping bag and a supporting bag, and the surfaces facing each other in the length direction of the bag are mutually opposed. The connection configuration was adopted.
【0010】前記一対の袋体を分離可能に接続すること
ができる。[0010] The pair of bags can be connected to be separable.
【0011】[0011]
【実施の形態】以下、この発明の実施形態を添付図面に
基づいて説明する。Embodiments of the present invention will be described below with reference to the accompanying drawings.
【0012】図1及び図2に示すように、仮設用止水構
造物1は、気密な可撓性袋体2に流体(主として水)の
給排口3と排気口4を設けたものであって、前記給排口
3から流体を供給して膨脹した状態では筒状をなし、横
断面はほぼ長円形、好ましくは底面が平坦なかまぼこ形
になっている。そして、高さHと幅Wとの関係は、後者
が前者の2倍程度、即ちW≧2Hにしてある。As shown in FIGS. 1 and 2, a temporary waterproof structure 1 is provided with an airtight flexible bag 2 provided with a supply / discharge port 3 for fluid (mainly water) and an exhaust port 4. In the state where the fluid is supplied from the supply / discharge port 3 and expanded, it has a cylindrical shape, a substantially elliptical cross section, and preferably a semi-cylindrical bottom. The relationship between the height H and the width W is such that the latter is about twice as large as the former, ie, W ≧ 2H.
【0013】前記袋体2の材料には、ゴム引布や織布を
埋め込んだ合成ゴムシートなどを用いることができる。
また、底面にウレタンシートのような弾性シート5を固
着すれば、河床に対する水密性を向上させ(流水が通過
しない)、同時に河床に対するグリップ性も向上するこ
とができる。As the material of the bag 2, a synthetic rubber sheet in which a rubberized cloth or a woven cloth is embedded can be used.
Further, if the elastic sheet 5 such as a urethane sheet is fixed to the bottom surface, the watertightness with respect to the riverbed can be improved (the flowing water does not pass), and at the same time, the grip with respect to the riverbed can be improved.
【0014】上記のように袋体2が単体の場合、水流の
水深hは袋体2の高さの1/2程度、即ちh≦1/2H
程度が袋体2の転動限界であり、袋体2の幅Wを2H以
上にしても、転動限界を高めることはできないことが実
験的に確かめられている。勿論、これは袋体2を単独で
用いた場合であって、後に説明する図6のようにコ字状
に配列し、かつそれぞれの端部を連結した場合は別であ
る(図6の場合は、後述するように、端部を接続してい
ない)。従って、包袋2の端部のみを係止するか、又は
他の固定物に係留することができる手段を設けておくこ
とができる。例えばロープや帯などを両端に接続してお
いてもよい。またロープ等を接続できる孔を設けた小片
を袋体2の適宜個所に設けておいてもよい。なお、この
ようなロープ等を接続すると、袋体2を河川等に張設す
る場合にも便利である。As described above, when the bag 2 is a single body, the water depth h of the water flow is about 1/2 of the height of the bag 2, that is, h ≦ 1 / H.
The degree is the rolling limit of the bag 2, and it has been experimentally confirmed that even if the width W of the bag 2 is 2H or more, the rolling limit cannot be increased. Of course, this is the case where the bags 2 are used alone, and is different from the case where the bags 2 are arranged in a U-shape and their respective ends are connected as shown in FIG. Are not connected at the ends as will be described later). Therefore, it is possible to provide a means capable of locking only the end of the wrapper 2 or mooring it to another fixed object. For example, a rope or a band may be connected to both ends. A small piece provided with a hole to which a rope or the like can be connected may be provided at an appropriate position on the bag body 2. Note that connecting such a rope or the like is convenient even when the bag body 2 is stretched over a river or the like.
【0015】図3及び図4に他の実施形態を示す。図示
のように、この止水構造物1は、大小一対の気密な可撓
性袋体10と20より成り、これらは互に長さ方向に接
続されている。勿論流体の給排口11、21や排気口1
2、22も図1の場合と同様に設けられ、流体を供給し
て膨脹した状態では筒状をなし、横断面はほぼ長円形に
なっているが、他の形状であってもよい。FIGS. 3 and 4 show another embodiment. As shown in the figure, the waterproof structure 1 includes a pair of large and small airtight flexible bags 10 and 20, which are connected to each other in the longitudinal direction. Of course, the supply and discharge ports 11 and 21 of the fluid and the exhaust port 1
1 and 2 are provided in the same manner as in FIG. 1 and have a cylindrical shape in a state where the fluid is supplied and expanded, and have a substantially oval cross section, but may have another shape.
【0016】前記袋体10と20は、それぞれの袋体の
側面に固着された可撓性帯状部材13と23を、例えば
スライドファスナ14によって接続し一体化されてい
る。接続方法は、例えば図5に示すように、それぞれの
帯状部材13と23に設けた鳩目を紐14aで編み上げ
てもよい。このように、袋体10と20を分離可能に接
続するのが好ましいが、帯状部材13と23を一体化し
て分離不可能にすることもできる。接続部は、袋体10
と20が対向する面の、袋体20の中央部附近が好まし
く、袋体10と20の間隔は、後述する袋体20の作用
を考えて選択する。また、接続する袋体10と20の長
さは同一でなくてもよい。The bags 10 and 20 are formed by connecting flexible band members 13 and 23 fixed to the side surfaces of the respective bags by, for example, a slide fastener 14. As a connection method, for example, as shown in FIG. 5, the eyelets provided on each of the band-shaped members 13 and 23 may be knitted with the string 14a. As described above, it is preferable that the bag bodies 10 and 20 are connected so as to be separable. However, the band members 13 and 23 may be integrated so that they cannot be separated. The connection part is a bag 10
It is preferable that the surface of the bag body 20 facing the center of the bag body 20 is opposed, and the interval between the bag bodies 10 and 20 is selected in consideration of the operation of the bag body 20 described later. The lengths of the bags 10 and 20 to be connected do not have to be the same.
【0017】前記袋体10の底面にウレタン等の弾性シ
ート15を固着しておくことができる。袋体20にも同
様のシートを固着してもよい。水密性と摩擦性を高める
ためである。An elastic sheet 15 such as urethane can be fixed to the bottom surface of the bag 10. A similar sheet may be fixed to the bag 20. This is to enhance water tightness and friction.
【0018】上述のようにして接続された袋体10と2
0は、袋体10を上流側にして設置する。このとき、水
流wは、図4のように、袋体10の左側に作用し、袋体
10を時計方向に転動させようとするが、袋体20は帯
状部材13、23によって接続されているため、反時計
方向に転動しようとする。即ち袋体20は袋体10と反
対方向に転動しようとするため、まず袋体10の下流側
の側面(袋体20との対向面)に圧接し、さらにその下
方に袋体20が食い込み、楔の作用で袋体10の転動を
防止する。The bags 10 and 2 connected as described above
No. 0 is installed with the bag body 10 on the upstream side. At this time, the water flow w acts on the left side of the bag body 10 as shown in FIG. 4 and tries to roll the bag body 10 clockwise, but the bag body 20 is connected by the belt-shaped members 13 and 23. And tries to roll counterclockwise. That is, since the bag 20 tries to roll in the direction opposite to the bag 10, the bag 20 first comes into pressure contact with the downstream side surface (the surface facing the bag 20), and the bag 20 bites below it. The rolling of the bag 10 is prevented by the action of the wedge.
【0019】従って、袋体20はさほど大きくする必要
はなく、袋体10の高さの半分程度の高さがあれば充分
であるが、勿論それ以下でもよい。Accordingly, it is not necessary to make the bag 20 so large, and it is sufficient if the height of the bag 10 is about half the height of the bag 10, but of course, it may be smaller.
【0020】図6に使用法の一例を示す。この例は、河
川Aの一部をせき止めて、その区画B内で工事を行なう
例を示しており、水流と直角方向に、工事区画Bに対し
て袋体20を内側にして、止水用構造物1−1及び1−
2を並行に設置し、水流と同じ方向に、前記構造物1−
1と1−2の端部を連結するように止水用構造物1−3
を設置する。この場合、袋体10を構造物1−1、1−
2の袋体10と密着させるが、この密着の邪魔にならな
いように袋体20は短いものを接続しておく。そして、
区画B内の水を排出すれば河床が露出する。FIG. 6 shows an example of the usage. This example shows an example in which a part of the river A is dammed and construction is performed in the section B. The bag 20 is located inside the construction section B at right angles to the water flow, and Structures 1-1 and 1-
2 in parallel with each other, and in the same direction as the water flow, the structure 1-
Structure 1-3 for waterproofing so as to connect the ends of 1 and 1-2
Is installed. In this case, the bag body 10 is connected to the structures 1-1, 1-
The bag 20 is closely attached to the second bag 10, but a short bag 20 is connected so as not to hinder the close contact. And
If the water in section B is discharged, the riverbed will be exposed.
【0021】上記袋体10と20にロープや帯を接続し
ておいたり、ロープや帯の接続用係止手段を設けておく
ことができるのは前述と同様である。As described above, a rope or a band can be connected to the bags 10 and 20 or a locking means for connecting the rope or the band can be provided.
【0022】また、図7及び図8に示すように、袋体2
又は10の端部全周に、可撓性ジョイントシート6を水
密に巻回固着し、端縁に水密ファスナ7を取り付け、複
数個の袋体2又は10を長さ方向に接続できるようにし
てもよい。As shown in FIG. 7 and FIG.
Or, a flexible joint sheet 6 is wound around and fixed to the entire periphery of the end portion of 10, and a water-tight fastener 7 is attached to the edge so that a plurality of bags 2 or 10 can be connected in the length direction. Is also good.
【0023】[0023]
【効果】以上のように、第1の発明によれば、可撓性袋
体の幅をその高さの2倍程度とすることによって、ある
程度の水流に対しては袋体単体で転動せずに耐えること
ができるため、袋体を固定する手段が不要となり、設置
の作業性が著しく向上する。As described above, according to the first aspect of the present invention, the width of the flexible bag is set to be about twice the height of the flexible bag, so that the bag can be rolled by itself for a certain amount of water flow. Therefore, means for fixing the bag body is not required, and the workability of installation is remarkably improved.
【0024】また、第2の発明は、大小一対の袋体を長
さ方向に接続したので、流水を受けた止水用袋体に対し
て支持用袋体が反対方向に転動しようとするため、止水
用袋体の転動が防止され、袋体を河床に固定する作業が
不要となり、設置作業性が優れており、また袋体が2個
隣接して設置されるため、止水効果が高い。According to the second aspect of the present invention, since the pair of large and small bags are connected in the longitudinal direction, the supporting bag tends to roll in the opposite direction to the waterproof bag receiving the flowing water. As a result, the water-stopping bag is prevented from rolling, and the work of fixing the bag to the riverbed becomes unnecessary, and the installation workability is excellent. In addition, since two bags are installed adjacent to each other, the water-stopping bag is installed. High effect.
【図1】この発明の一実施形態を示す構造物の斜視図FIG. 1 is a perspective view of a structure showing an embodiment of the present invention.
【図2】同上の正面図FIG. 2 is a front view of the same.
【図3】この発明の他の実施形態を示す構造物の平面図FIG. 3 is a plan view of a structure showing another embodiment of the present invention.
【図4】同上の正面図FIG. 4 is a front view of the above.
【図5】一対の袋体の接続部を示す拡大平面図FIG. 5 is an enlarged plan view showing a connection portion between a pair of bag bodies.
【図6】設置例を示す平面図FIG. 6 is a plan view showing an installation example.
【図7】袋体の端部の接続手段を示す斜視図FIG. 7 is a perspective view showing connection means at an end of the bag body.
【図8】袋体を接続した状態を示す正面図FIG. 8 is a front view showing a state where the bags are connected.
1、1−1、1−2、1−3 止水構造物 2 可撓性袋体 3 給排口 4 排気口 5 弾性シート 6 ジョイントシート 7 水密性ファスナ 10 可撓性袋体 11 給排口 12 排気口 13 可撓性帯状部材 14 スライドファスナ 14a 紐 15 弾性シート 20 可撓性袋体 21 給排口 22 排気口 23 可撓性帯状部材 A 河川 B 工事区画 H 高さ h 水深 W 幅 w 水流 DESCRIPTION OF SYMBOLS 1, 1-1, 1-2, 1-3 Water stop structure 2 Flexible bag 3 Supply / discharge port 4 Exhaust port 5 Elastic sheet 6 Joint sheet 7 Watertight fastener 10 Flexible bag 11 Supply / discharge port DESCRIPTION OF SYMBOLS 12 Exhaust port 13 Flexible band member 14 Slide fastener 14a String 15 Elastic sheet 20 Flexible bag 21 Supply / discharge port 22 Exhaust port 23 Flexible band member A River B Construction section H Height h Water depth W Width w Water flow
Claims (4)
が高さの2倍程度である筒状をなす仮設用止水構造物。1. A temporary water-stop structure having a tubular shape, which is made of an air-tight flexible bag and whose width when inflated is about twice its height.
ていることを特徴とする請求項1記載の仮設用止水構造
物。2. The temporary waterproof structure according to claim 1, wherein an elastic sheet is fixed to a bottom surface of the bag body.
成り、これらの袋体の長さ方向に対向する面が互に接続
されている仮設用止水構造物。3. A temporary water-stop structure comprising a pair of airtight, inflatable and contractible bags, the surfaces of which are opposed to each other in the longitudinal direction thereof being connected to each other.
いることを特徴とする請求項3記載の仮設用止水構造
物。4. The temporary waterproof structure according to claim 3, wherein the pair of bags are connected so as to be separable.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8161723A JPH108433A (en) | 1996-06-21 | 1996-06-21 | Temporarily constructed water cut-off structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8161723A JPH108433A (en) | 1996-06-21 | 1996-06-21 | Temporarily constructed water cut-off structure |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH108433A true JPH108433A (en) | 1998-01-13 |
Family
ID=15740664
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8161723A Pending JPH108433A (en) | 1996-06-21 | 1996-06-21 | Temporarily constructed water cut-off structure |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH108433A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008173142A (en) * | 2007-01-16 | 2008-07-31 | Showa Shell Sekiyu Kk | Fire spread preventing method and fire spread preventing implement used for the method |
JP2008303664A (en) * | 2007-06-11 | 2008-12-18 | Niitsumagumi:Kk | Water overflow preventing facility and water overflow preventing method |
GB2452396A (en) * | 2007-08-28 | 2009-03-04 | William Whitehead | Water filled apparatus for use as a flood barrier or vehicle ballast |
CN102409635A (en) * | 2010-09-25 | 2012-04-11 | 盟鑫工业股份有限公司 | Sand tube bag with radial stiffening sides |
JP2015101893A (en) * | 2013-11-26 | 2015-06-04 | 太陽工業株式会社 | Flooding prevention device |
JP2017082424A (en) * | 2015-10-23 | 2017-05-18 | 株式会社鶴見製作所 | Water fence |
JP2017150161A (en) * | 2016-02-22 | 2017-08-31 | 株式会社鶴見製作所 | Water fence |
JP2018003278A (en) * | 2016-06-27 | 2018-01-11 | 株式会社鶴見製作所 | Water fence |
JP2018035599A (en) * | 2016-09-01 | 2018-03-08 | 株式会社鶴見製作所 | Water fence |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS481536Y1 (en) * | 1970-07-24 | 1973-01-16 | ||
JPS55113721U (en) * | 1979-01-31 | 1980-08-11 |
-
1996
- 1996-06-21 JP JP8161723A patent/JPH108433A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS481536Y1 (en) * | 1970-07-24 | 1973-01-16 | ||
JPS55113721U (en) * | 1979-01-31 | 1980-08-11 |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008173142A (en) * | 2007-01-16 | 2008-07-31 | Showa Shell Sekiyu Kk | Fire spread preventing method and fire spread preventing implement used for the method |
JP2008303664A (en) * | 2007-06-11 | 2008-12-18 | Niitsumagumi:Kk | Water overflow preventing facility and water overflow preventing method |
GB2452396A (en) * | 2007-08-28 | 2009-03-04 | William Whitehead | Water filled apparatus for use as a flood barrier or vehicle ballast |
CN102409635A (en) * | 2010-09-25 | 2012-04-11 | 盟鑫工业股份有限公司 | Sand tube bag with radial stiffening sides |
JP2015101893A (en) * | 2013-11-26 | 2015-06-04 | 太陽工業株式会社 | Flooding prevention device |
JP2017082424A (en) * | 2015-10-23 | 2017-05-18 | 株式会社鶴見製作所 | Water fence |
JP2017150161A (en) * | 2016-02-22 | 2017-08-31 | 株式会社鶴見製作所 | Water fence |
JP2018003278A (en) * | 2016-06-27 | 2018-01-11 | 株式会社鶴見製作所 | Water fence |
JP2018035599A (en) * | 2016-09-01 | 2018-03-08 | 株式会社鶴見製作所 | Water fence |
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