JPH04363406A - Water screening sheet laying method - Google Patents
Water screening sheet laying methodInfo
- Publication number
- JPH04363406A JPH04363406A JP3137987A JP13798791A JPH04363406A JP H04363406 A JPH04363406 A JP H04363406A JP 3137987 A JP3137987 A JP 3137987A JP 13798791 A JP13798791 A JP 13798791A JP H04363406 A JPH04363406 A JP H04363406A
- Authority
- JP
- Japan
- Prior art keywords
- water
- sheet
- shielding sheet
- laying
- fixed
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims description 10
- 238000012216 screening Methods 0.000 title abstract 4
- 238000004804 winding Methods 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Revetment (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、産業廃棄物などを投入
するために設けられた閉鎖水域の底面などに、遮水シー
トを敷設する遮水シートの敷設方法に関するものである
。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for laying a water-shielding sheet on the bottom of a closed water area provided for dumping industrial waste and the like.
【０００２】0002
【従来の技術】従来、上記のごとき閉鎖水域の底面に遮
水シートを敷設するには、例えば遮水シートの敷設工法
に関する特公昭６０−５８３３０等の公知例のごとく、
シートの先端に複数のフロートを取付け、フロートにロ
ープを取付け、ロープをウインチ等で巻き取ることによ
って行なっていた。しかしながら、この従来の方法では
、シートに過大な張力がかかるので、水密構造にすると
いう本来の目的を達成するのに必要な厚さよりもかなり
シートを厚くする必要があり、不経済であるという問題
があった。BACKGROUND OF THE INVENTION Conventionally, in order to lay a water-shielding sheet on the bottom of a closed water area as described above, for example, a known example such as Japanese Patent Publication No. 60-58330 concerning a method for laying a water-shielding sheet is used.
This was done by attaching multiple floats to the tip of the sheet, attaching ropes to the floats, and winding the ropes with a winch or the like. However, this conventional method has the problem that excessive tension is applied to the sheet, making it necessary to make the sheet considerably thicker than necessary to achieve the original purpose of creating a watertight structure, which is uneconomical. was there.
【０００３】0003
【発明の解決しようとする課題】本発明は、前記従来の
問題点を解決するためになされたものであり、遮水シー
トの敷設時にそのシートにかかる張力を少なくして、シ
ートの厚さを薄くすることができる経済的な遮水シート
の敷設方法を提供することを解決課題としたものである
。SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned conventional problems, and it is possible to reduce the tension applied to a water-shielding sheet when it is laid, thereby reducing the thickness of the sheet. The objective of the present invention is to provide an economical method for laying a water-shielding sheet that can be made thin.
【０００４】0004
【課題を解決するための手段】上記の課題を解決するた
めの手段として、本発明の遮水シートの敷設方法は、敷
設する遮水シートの幅とほぼ同じ長さを有し、かつ上方
に適宜な数のターニングローラを配置したフロートドラ
ムの両側に、それぞれウインチを有するフロートを一体
化して、その遮水シートを敷設する水域の水面上に組立
ての後、所要幅に溶着した所要長さの遮水シートの全長
をそのフロートドラムに巻き込みの上、その遮水シート
の一端部を敷設水域の一端の底部または護岸、築堤等の
上面に固定し、敷設水域の他端部に固定したワイヤーロ
ープを一方のウインチで巻き取りながらフロートドラム
から遮水シートを繰り出し、遮水シートの他端部を敷設
水域の他端の底または護岸、築堤等の上面に固定するこ
とにより構成される。[Means for Solving the Problems] As a means for solving the above-mentioned problems, the method for laying a water-shielding sheet of the present invention provides a method for laying a water-shielding sheet that has approximately the same length as the width of the water-shielding sheet to be laid, and that Floats each having a winch are integrated on both sides of a float drum on which an appropriate number of turning rollers are arranged, and after assembling the sheet on the water surface of the body of water where the water-shielding sheet is to be laid, a sheet of the required length is welded to the required width. A wire rope in which the entire length of the water-shielding sheet is wrapped around the float drum, one end of the water-shielding sheet is fixed to the bottom of one end of the water area where the water will be laid, or the top surface of a seawall, embankment, etc., and the other end of the water-shielding sheet is fixed to the other end of the water where the water is being laid. The water-shielding sheet is rolled up with one winch while the water-shielding sheet is fed out from the float drum, and the other end of the water-shielding sheet is fixed to the bottom of the other end of the water area or the top surface of a revetment, embankment, etc.
【０００５】上記のごとく遮水シートを送り込んだ状態
のフロートドラムの作業フロートの一方のウインチを巻
き取り、ターニングローラによりフロートドラムに巻か
れた遮水シートを繰り出して行くことにより、遮水シー
トに過大な張力がかからずにその敷設を行なうことがで
きる。[0005] By winding up one winch of the working float of the float drum with the water-shielding sheet fed in as described above and letting out the water-shielding sheet wound around the float drum by the turning roller, the water-shielding sheet is turned into a water-shielding sheet. The installation can be carried out without applying excessive tension.
【０００６】[0006]
【実施例】以下図面を参照して本発明の遮水シートの敷
設方法により遮水シートを敷設する際の実施例を説明す
るが、まず図１の平面図及び図２の側面図に示すごとく
、敷設する遮水シートの幅とほぼ同じ長さを有するフロ
ートドラム１の上方に適宜な間隔で複数のターニングロ
ーラ２を配置すると共に、そのフロートドラム１の前後
両側にそれぞれウインチ３、錨ウインチ３Ａを有する作
業用フロート４を一体化して、敷設する水域の水面上に
組立ての後、図示していない錨等で固定しておく。[Example] An example of laying a water-shielding sheet by the water-shielding sheet laying method of the present invention will be described below with reference to the drawings. A plurality of turning rollers 2 are arranged at appropriate intervals above a float drum 1 having a length that is approximately the same as the width of the water-blocking sheet to be laid, and a winch 3 and an anchor winch 3A are installed on both sides of the float drum 1, respectively. The working float 4 having the above-mentioned structure is integrated and assembled on the water surface of the water area where it is to be laid, and then fixed with an anchor or the like (not shown).
【０００７】次に、その遮水シート６の敷設場所の周囲
の陸地５上の溶着ヤードなどで、敷設のために所要の幅
、例えばこの実施例では幅２００ｍに溶着し、敷設に必
要な所要長さの遮水シート６をターニングローラ２によ
りフロートドラム１に全長巻き込みする。なお、このタ
ーニングローラ２の数はそのフロートドラム１の径など
により適宜選定するものであるが、その駆動源は、油圧
モータ、チェーン等適宜な手段を用いるものとする。Next, at a welding yard on the land 5 around the place where the water shielding sheet 6 is to be laid, welding is performed to the required width for laying, for example, 200 m in this embodiment, and the required width for laying is made. The entire length of the water-blocking sheet 6 is wound around the float drum 1 by the turning roller 2. The number of turning rollers 2 is appropriately selected depending on the diameter of the float drum 1, etc., and the driving source thereof may be an appropriate means such as a hydraulic motor or a chain.
【０００８】次に、この実施例では遮水シート６の一端
を、図３の側面図に示すごとく、鋼矢板護岸の鋼矢板８
の水底部７に固定し、陸地５に設けた杭などに、ウイン
チ３に巻いたワイヤーロープ１０の端部を固定し、錨ウ
インチ３Ａに巻いたワイヤーロープ１１の端部を対岸９
付近の水底に打設した錨に固定する。なお、錨の代りに
、対岸９に設けた陸上の杭に錨ウインチ３Ａに巻いたワ
イヤーロープ１１の端部を固定してもよい。Next, in this embodiment, one end of the water-blocking sheet 6 is attached to the steel sheet pile 8 of the steel sheet pile revetment, as shown in the side view of FIG.
The end of the wire rope 10 wound around the winch 3 is fixed to the bottom 7 of the water, the end of the wire rope 10 wound around the winch 3 is fixed to a stake provided on the land 5, and the end of the wire rope 11 wound around the anchor winch 3A is fixed to the opposite shore 9.
Anchor it to an anchor set on the bottom of the water nearby. Note that instead of the anchor, the end of the wire rope 11 wound around the anchor winch 3A may be fixed to a stake on land provided on the opposite shore 9.
【０００９】この状態で作業フロート４上の錨ウインチ
３Ａを巻き取り、他方のウインチ３を緩めてフロートド
ラム１を対岸９に進めながら、ターニングローラ２によ
りフロートドラム１に巻かれた遮水シート６を繰り出し
ていく。遮水シート６の展張がある程度進むにつれ、遮
水シート６は自重で水底に沈設されるが、必要に応じて
図４のごとくサンドウエイト１２等を使用する。そして
、フロートドラム１が対岸９付近まで到達したら、遮水
シート６の端部を潜水夫により鋼矢板護岸の鋼矢板１３
の水底部１４に固定する。In this state, the anchor winch 3A on the working float 4 is wound up, and while the other winch 3 is loosened and the float drum 1 is advanced to the opposite shore 9, the water-shielding sheet 6 wound around the float drum 1 by the turning roller 2 is I'm going to bring out the. As the expansion of the water-shielding sheet 6 progresses to a certain extent, the water-shielding sheet 6 is sunk to the bottom of the water by its own weight, but if necessary, a sand weight 12 or the like is used as shown in FIG. When the float drum 1 reaches near the opposite bank 9, the end of the water-shielding sheet 6 is attached to the steel sheet pile 13 of the steel sheet pile revetment by a diver.
It is fixed to the bottom part 14 of the water.
【００１０】なお、フロートドラム１が進行する方向と
直角方向の護岸への遮水シート６の取付けは、遮水シー
ト６を必要幅だけ折ってフロートドラム１に巻き込み、
遮水シート６が水底に沈設された後に，潜水夫により鋼
矢板護岸の鋼矢板の水底に固定するものとする。また、
この実施例では護岸が鋼矢板８，１３の継手が止水構造
の場合について説明しているので、鋼矢板８，１３の各
水底部７，１４に遮水シート６を固定しているが、止水
構造になっていない護岸や土砂による築堤の場合は、護
岸の立上り面や築堤の法面にも遮水シート６を敷設し、
護岸や築堤の上面に遮水シートの両端部を固定すること
が必要である。[0010] To attach the water-shielding sheet 6 to the seawall in the direction perpendicular to the direction in which the float drum 1 moves, fold the water-shielding sheet 6 to the required width and wrap it around the float drum 1.
After the impermeable sheet 6 is sunk to the bottom of the water, it shall be fixed to the bottom of the steel sheet piles of the steel sheet pile revetment by a diver. Also,
In this embodiment, the case where the joints of the steel sheet piles 8 and 13 of the seawall have a water-stopping structure is explained, so the water-blocking sheet 6 is fixed to each of the water bottoms 7 and 14 of the steel sheet piles 8 and 13. In the case of a seawall or embankment made of earth and sand that does not have a water-stopping structure, a water-blocking sheet 6 is also laid on the rising surface of the seawall and the slope of the embankment.
It is necessary to fix both ends of the seepage sheet to the top of the seawall or embankment.
【００１１】[0011]
【発明の効果】上記に説明した本発明の遮水シートの敷
設方法によれば、遮水シートを敷設するのにシートに過
大な張力がかからないので、シートを薄くすることがで
き、経済性が向上するという効果がある。また、遮水シ
ートを巻き込むフロートドラムが水面上にあるので浮力
が働き、ドラムの構造を簡単にすることができ、経済的
であるという利点もある。[Effects of the Invention] According to the above-described method for laying a water-shielding sheet of the present invention, excessive tension is not applied to the sheet when laying the water-shielding sheet, so the sheet can be made thinner and economical. It has the effect of improving. Further, since the float drum that envelops the water-shielding sheet is located on the water surface, buoyancy acts, and the structure of the drum can be simplified, which has the advantage of being economical.
【００１２】0012
【図１】本発明の遮水シートの敷設方法により遮水シー
トを敷設する作業において使用されるフロートドラムの
要部平面図である。FIG. 1 is a plan view of a main part of a float drum used in the work of laying a water-shielding sheet according to the water-shielding sheet laying method of the present invention.
【図２】図１のフロートドラムに溶着した遮水シートを
巻込む状態を示す側面図である。FIG. 2 is a side view showing a state in which the water-blocking sheet welded to the float drum of FIG. 1 is rolled up.
【図３】図２のの状態から遮水シートに多少の張力をか
けて対岸に引き出す状態を示す側面図である。FIG. 3 is a side view showing a state in which the water-blocking sheet is pulled out to the opposite bank from the state shown in FIG. 2 by applying some tension to it.
【図４】図３の状態から引き出されたシートを対側まで
進める状態を示す側面図である。FIG. 4 is a side view showing a state in which the sheet pulled out from the state in FIG. 3 is advanced to the opposite side.
１……フロートドラム ２
……ターニングローラ
３……ウインチ
３Ａ…錨ウインチ４……作業用フロート
６……遮水シート１１…ワイヤーロ
ープ1...Float drum 2
...Turning roller 3...Winch
3A...Anchor winch 4...Work float
6...Waterproof sheet 11...Wire rope
Claims (1)
さを有し、かつ上方にターニングローラを配置したフロ
ートドラムの両側に、それぞれウインチを有するフロー
トを一体化して、敷設する水域の水面上に組立ての後、
所要幅に溶着した遮水シートをそのフロートドラムに巻
込みの上、その遮水シートの一端部を敷設水域の一端の
底部または護岸、築堤等の上面に固定し、敷設水域の他
端部に固定したワイヤーロープを上記ウインチで巻取り
ながらフロートドラムから遮水シートを繰り出し、遮水
シートの他端部を敷設水域の他端の底部または護岸、築
堤等の上面に固定する遮水シートの敷設方法。Claim 1: Floats each having a winch are integrated on both sides of a float drum that has approximately the same length as the width of the water-shielding sheet to be laid and has a turning roller arranged above. After assembling the top,
The water-shielding sheet welded to the required width is wound around the float drum, one end of the water-shielding sheet is fixed to the bottom of one end of the water area where the water will be laid, or the top surface of a revetment, embankment, etc. While winding the fixed wire rope with the above winch, pay out the water-shielding sheet from the float drum and lay the other end of the water-shielding sheet.Laying the water-shielding sheet that is fixed to the bottom of the other end of the water body or the top surface of a seawall, embankment, etc. Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3137987A JPH0742688B2 (en) | 1991-06-10 | 1991-06-10 | Laying method of water-blocking sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3137987A JPH0742688B2 (en) | 1991-06-10 | 1991-06-10 | Laying method of water-blocking sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04363406A true JPH04363406A (en) | 1992-12-16 |
| JPH0742688B2 JPH0742688B2 (en) | 1995-05-10 |
Family
ID=15211410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3137987A Expired - Lifetime JPH0742688B2 (en) | 1991-06-10 | 1991-06-10 | Laying method of water-blocking sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0742688B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008069551A (en) * | 2006-09-14 | 2008-03-27 | Shoichiro Cho | Water catchment area cleaning method, and construction apparatus for cleaning water catchment area |
| JP2023072750A (en) * | 2021-11-15 | 2023-05-25 | 株式会社堀内組 | Joint part water cut-off method of steel sheet pile |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53123530A (en) * | 1977-04-01 | 1978-10-28 | Toyo Construction | Method of applying sheet on underwater ground |
| JPS62190746A (en) * | 1986-02-17 | 1987-08-20 | Sanyo Electric Co Ltd | Substrate-bias generating circuit |
-
1991
- 1991-06-10 JP JP3137987A patent/JPH0742688B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53123530A (en) * | 1977-04-01 | 1978-10-28 | Toyo Construction | Method of applying sheet on underwater ground |
| JPS62190746A (en) * | 1986-02-17 | 1987-08-20 | Sanyo Electric Co Ltd | Substrate-bias generating circuit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008069551A (en) * | 2006-09-14 | 2008-03-27 | Shoichiro Cho | Water catchment area cleaning method, and construction apparatus for cleaning water catchment area |
| JP2023072750A (en) * | 2021-11-15 | 2023-05-25 | 株式会社堀内組 | Joint part water cut-off method of steel sheet pile |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0742688B2 (en) | 1995-05-10 |
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