JPS6058331B2 - Waterproof sheet installation method - Google Patents
Waterproof sheet installation methodInfo
- Publication number
- JPS6058331B2 JPS6058331B2 JP57212667A JP21266782A JPS6058331B2 JP S6058331 B2 JPS6058331 B2 JP S6058331B2 JP 57212667 A JP57212667 A JP 57212667A JP 21266782 A JP21266782 A JP 21266782A JP S6058331 B2 JPS6058331 B2 JP S6058331B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- sheet
- wire
- blocking sheet
- ground
- 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
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
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)
- Processing Of Solid Wastes (AREA)
- Revetment (AREA)
Description
【発明の詳細な説明】
本発明は、泥質低段地の底面と周面とに亘つて遮水シ
ートを敷設させる工事の施工に用いられる遮水シートの
敷設工法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a construction method for laying a water-shielding sheet used for construction work in which a water-shielding sheet is laid over the bottom and surrounding surfaces of a muddy low-level land.
例えは、産業廃棄物処理場等ては、廃棄物の浸出液（
汚水）が地下水汚染、上場汚染、公共水域の汚染を生じ
るため公害防止上捨場の構造を遮水構造とする必要があ
り、すなわち捨場の底面と周面に遮水シートを敷設する
必要がある。 しかし、底面がヘドロ等の泥質層におけ
る広いスペースのシートの敷設施工は困難であり、この
ことから、広域の泥質低段地を遮水構造化し得るシート
敷設工法が要望されている。For example, in industrial waste treatment plants, waste leachate (
Because sewage (sewage) causes groundwater contamination, listed pollution, and public water pollution, it is necessary to make the structure of the pollution prevention top dumping site water-proof, which means that it is necessary to lay a water-blocking sheet on the bottom and surrounding surface of the dump site. However, it is difficult to construct a sheet over a wide space in a muddy layer such as sludge on the bottom, and for this reason, there is a need for a sheet-laying method that can create a water-blocking structure in a wide area of low-lying muddy land.
本発明は、このような現状に鑑みなされたものであつ
て、すなわち、本発明の目的は、広域の泥質低段地にお
いても確実に遮水工事を施工し得るようにした遮水シー
トの敷設工法を提供することにある。The present invention has been made in view of the current situation, and an object of the present invention is to provide a water-shielding sheet that can reliably carry out water-shielding work even in low-lying muddy areas over a wide area. The purpose is to provide a laying method.
その目的を達成する方法として、本発明の敷設工法は
、低段地の地表開口面に複数列の張線を架設させると共
に、一方の地上側辺に遮水シートを配置させ、かつ、こ
れと対向する他方の地上側辺にはウインチ等の牽引装置
を設置させ、このウインチから引出された牽引ワイヤを
上記一方の側辺に導き、更に、上記遮水シートの先端縁
を上記ワイヤに結着させ、次で、上記ウインチの巻込み
作動に基づき、上記張線上を摺動する遮水シートの先端
を他方の側辺に引寄せ固定し、最後に、上記張線を徹去
若しくは切断することにより、該シートを低段地の底面
と周面とに亘り敷設させるようにしたことを特徴として
いる。As a method for achieving this purpose, the installation method of the present invention involves constructing multiple rows of tension wires on the ground surface of a low-lying land, placing a water-blocking sheet on one side of the ground, and A traction device such as a winch is installed on the other opposing ground side, and the traction wire pulled out from the winch is guided to the one side, and the leading edge of the water-blocking sheet is tied to the wire. Then, based on the winding operation of the winch, the tip of the water-shielding sheet sliding on the tension wire is pulled and fixed to the other side, and finally, the tension wire is removed or cut. Accordingly, the sheet is laid over the bottom and circumferential surface of the low-lying land.
以下、図示の一実施例に基づいて本発明を具体的に説
明する。Hereinafter, the present invention will be specifically explained based on an illustrated embodiment.
実施例工法の施工に当つては、第１図ないし第３図に
示すように、方形の穴（泥質低段地）Ａの縦方向（図面
長手方向）の一方すなわち図面右方の地上側辺１に、横
方向（図面短手前記）に全通する合板あるいは鋼板等の
長手台板２を、枕木３をかつて水平かつ確実に設置する
と共に、台板２上に自走式熱風溶接機４を乗せておく。In the construction of the example construction method, as shown in Figures 1 to 3, one side of the rectangular hole (low mud land) A in the vertical direction (longitudinal direction of the drawing), that is, the ground side on the right side of the drawing. On side 1, install a longitudinal base plate 2 such as plywood or steel plate that runs completely in the horizontal direction (as shown above on the short side of the drawing), install sleepers 3 horizontally and securely, and place a self-propelled hot air welding machine on the base plate 2 Put 4 on it.
また、縦方向の他方の地上側辺５には、複数（図示で
は、４台）のウインチ６を並列させて設置すると共に、
各ウインチ６から引出された牽引ワイヤ７の先端を、反
対側の側辺１に導いておく。更に、穴Ａの地表開口面に
は、複数列（図示では、縦横各８列）の縦張線８と、横
張線９とを、各線端の杭打ちにより升目状に架設させて
あり、各張線８，９の長さは、夫々開口の縦長および横
幅長に穴の深さを加えた寸度より若干長く採つてある。Further, on the other ground side 5 in the vertical direction, a plurality of (four in the figure) winches 6 are installed in parallel, and
The tip of the pulling wire 7 pulled out from each winch 6 is guided to the opposite side 1. Further, on the ground surface opening surface of the hole A, a plurality of rows (in the figure, 8 rows each in length and width) of vertical tension wires 8 and horizontal tension wires 9 are constructed in a square shape by driving stakes at the ends of each line. The lengths of the tension wires 8 and 9 are slightly longer than the length and width of the opening plus the depth of the hole.
なお、穴の底部は、ヘドロ等の泥層Ａ″になつている。Note that the bottom of the hole is a mud layer A'' made of sludge or the like.
そのほか、台板２の付近には、樹脂質防水シート材の原
反１１を準備して置く。次に、遮水シートの敷設工事は
、下記工程に従つて施工する。In addition, an original fabric 11 of resin waterproof sheet material is prepared and placed near the base plate 2. Next, the construction of the water-blocking sheet will be carried out according to the following steps.
（１） 遮水シート１２の連成加工
原反１１乃至広幅加工をシート片１３とし、このシート
片１３を順次台板２に載せて、自走する溶接機４により
縦横両方向に接続接着する。(1) Coupled processing of the water-blocking sheet 12 The original fabric 11 or the wide-width processing are made into sheet pieces 13, and the sheet pieces 13 are sequentially placed on the base plate 2 and connected and bonded in both length and width directions using a self-propelled welding machine 4.
しかして連成された遮水シート１２は、張線８，９の上
面まて送り出す。The water-blocking sheet 12 thus coupled is sent out to the upper surface of the tension wires 8 and 9.
（２）遮水シート１２の先端の処理
遮水シート１２の先端のウインチ６に対向する箇所に、
各牽引ワイヤ７の先端を結着させる。(2) Treatment of the tip of the water-blocking sheet 12 At the tip of the water-blocking sheet 12 facing the winch 6,
The tips of each pulling wire 7 are tied together.
（３）遮水シート１２の展張工程
台板２上で連続的に行われる遮水シート１２の接着速度
に合わせてウインチ６を巻込作動させ、これにより張線
８，９上を摺動する遮水シート１２の先端を、対向する
側辺５に牽引して、穴Ａ面上に展張させる。(3) Stretching process of water-shielding sheet 12 The winch 6 is operated to wind in accordance with the adhesion speed of the water-shielding sheet 12 that is continuously performed on the bed plate 2, thereby sliding on the tension wires 8 and 9. The tip of the water-blocking sheet 12 is pulled to the opposing side 5 and spread over the surface of the hole A.
しかして、遮水シート１２の先端が側辺５に達した時、
ウインチ６を停止させると共に、敷設深さの余裕長を接
続接着させた上で、遮水シート１２の連成加工を終了す
る。However, when the tip of the water-blocking sheet 12 reaches the side 5,
The winch 6 is stopped, and the extra length of the laying depth is connected and bonded, and then the continuous processing of the water-blocking sheet 12 is completed.
（４）設備の徹去
遮水シート１２の周囲を、適当な間隔で地上に仮止めし
た後、遮水シート１２の先端からワイヤ７を外ずした上
で、ウインチ６およびワイヤ７と、台板２および溶接機
４とを徹去し、かつ穴Ａの周囲にトレンチを掘削する。(4) Removal of equipment After temporarily securing the area around the water-shielding sheet 12 to the ground at appropriate intervals, remove the wire 7 from the tip of the water-shielding sheet 12, and then attach the winch 6 and wire 7 to the stand. The plate 2 and the welding machine 4 are removed, and a trench is excavated around the hole A.
（５）遮水シート１２の布設工程両張線８，９を切断し
て徹去すると、遮水シート１２の内域は自重で穴の底面
と周面に落下して、遮水シート１２が布設される。(5) Laying process of water-shielding sheet 12 When both wires 8 and 9 are cut and removed, the inner area of water-shielding sheet 12 falls to the bottom and surrounding surface of the hole due to its own weight, and water-shielding sheet 12 Laid down.
（６）遮水シート１２周部の固定（第４図ないし第６図
参照）敷設工事の最終工程として遮水シート１２の４方
周部１２ａ〜１２ｄを地面に固定するものであるが、具
体的には、同シート１２の夫々の周部１２ａ〜１２ｄを
、穴Ａの周囲のトレンチ内に埋めた上で、埋め戻し土１
４により固定させる。(6) Fixing the circumferential parts of the water-blocking sheet 12 (see Figures 4 to 6) As the final step of the installation work, the four circumferential parts 12a to 12d of the water-blocking sheet 12 are fixed to the ground. Specifically, each peripheral portion 12a to 12d of the sheet 12 is buried in the trench around the hole A, and then backfilling soil 1 is added.
Fix it by 4.
このように施工される実施例の工法においては、地上作
業だけで工事の実施が可能であり、また、自走溶接機４
によつて遮水シート１２が連成されることから、接続加
工が効率良く行われると共に、遮水シート１２の水密性
の信頼度が高く、更に、遮水シート１２の展張が水平な
張線８，９上で行われるために、遮水シート１２にかか
る泥層Ａ″による展張抵抗負荷が小さく、従つて、遮水
シート１２が損傷される虞れが殆んどない。In the construction method of this embodiment, it is possible to carry out the construction by only working on the ground, and it is also possible to carry out the construction by using a self-propelled welding machine 4.
Since the water-shielding sheet 12 is coupled with the water-shielding sheet 12, the connection processing can be performed efficiently, and the water-tightness of the water-shielding sheet 12 is highly reliable. 8 and 9, the expansion resistance load due to the mud layer A'' applied to the water-shielding sheet 12 is small, and therefore there is almost no possibility that the water-shielding sheet 12 will be damaged.
なお、この施工方法においては、穴Ａの全開口面を覆う
広さの遮水シートを現場外で成形し、これを現場に運ん
で用いても良く、また、数枚のシートを適宜連成して遮
水シート１２としてもさしつかえない。また、この施工
方法は、穴Ａの底部に多少の溜水がある場合あるいは泥
あるいは水のない場合にも、全く同様に作業を実施する
ことができる。In addition, in this construction method, a water-blocking sheet large enough to cover the entire opening surface of hole A may be formed off-site and transported to the site for use, or several sheets may be linked together as appropriate. It can also be used as a water-shielding sheet 12. Further, this construction method can be carried out in exactly the same way even when there is some accumulated water at the bottom of the hole A, or when there is no mud or water.
以上述べたように、本発明に係る遮水シートの敷設工法
によれば、穴の一方側辺に配置した遮水シートを、穴の
上面に架設せしめた張線上に引き出し展張させ、その後
、該張線の先端若しくは徹去により同シートを穴の底面
に落下、布設させるようにしたので、広域の泥質低段地
においても該座部の泥等に邪摩されることなく確実に遮
水工事を施工することが可能となり、これにより、大量
の産業廃棄物の捨場を自由な立地に選定し得る効果があ
る。As described above, according to the method for laying a water-blocking sheet according to the present invention, the water-blocking sheet placed on one side of a hole is pulled out and stretched on a tension wire installed on the top surface of the hole, and then The sheet is dropped and laid at the bottom of the hole by the end of the tension wire or by removing it, so even in a wide area of low-lying muddy land, it can reliably block water without being disturbed by the mud on the seat. This makes it possible to carry out construction work, which has the effect of making it possible to freely select a dump site for a large amount of industrial waste.
第１図は、本発明の一実施例を示す遮水シートの敷設工
法のシート展張工程における穴の平面図、第２図および
第３図は、第１図の■−■線における側断面図、および
同■−■線における正断面図、第４図ないし第６図は、
夫々第１図ないし第３図の工事施工後における態様図で
ある。
１・・・一方の側辺、５・・・他方の側辺、６・・・ウ
インチ、７・・・牽引ワイヤ、８，９・・・張線、１２
・・・遮水シート。Fig. 1 is a plan view of a hole in the sheet spreading process of a water-shielding sheet installation method showing an embodiment of the present invention, and Figs. 2 and 3 are side sectional views taken along the line ■-■ in Fig. 1. , and the front cross-sectional views taken along the line ■-■, FIGS. 4 to 6,
FIG. 3 is a view of the construction after the construction shown in FIGS. 1 to 3 has been completed. DESCRIPTION OF SYMBOLS 1... One side, 5... Other side, 6... Winch, 7... Traction wire, 8, 9... Tension wire, 12
...Waterproof sheet.
Claims (1)
共に、一方の地上側辺に遮水シートを配置させ、かつ、
これと対向する他方の地上側辺には牽引装置を設置させ
、この牽引装置から引出された牽引ワイヤを上記一方の
側辺に導き、更に、上記遮水シートの先端縁を上記ワイ
ヤに結着させ、次で、上記牽引装置の巻込み作動に基づ
き、上記張線上を摺動する遮水シートの先端を他方の側
辺に引寄せ固定し、最後に、上記張線を徹去若しくは切
断することにより、該シートを低段地の底面と周面とに
亘り敷設させるようにしたことを特徴とする遮水シート
の敷設工法。1. Erection of multiple rows of tension lines in the ground surface opening of the low-lying land, and placing a water-blocking sheet on one ground side, and
A traction device is installed on the other ground side opposite to this, and the traction wire pulled out from this traction device is guided to the above one side, and the leading edge of the water-blocking sheet is tied to the wire. Then, based on the winding operation of the traction device, the tip of the water-shielding sheet sliding on the tension wire is pulled and fixed to the other side, and finally, the tension wire is removed or cut. A method for laying a water-blocking sheet, characterized in that the sheet is laid over the bottom and circumferential surface of a low-lying land.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57212667A JPS6058331B2 (en) | 1982-12-06 | 1982-12-06 | Waterproof sheet installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57212667A JPS6058331B2 (en) | 1982-12-06 | 1982-12-06 | Waterproof sheet installation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59106612A JPS59106612A (en) | 1984-06-20 |
| JPS6058331B2 true JPS6058331B2 (en) | 1985-12-19 |
Family
ID=16626403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57212667A Expired JPS6058331B2 (en) | 1982-12-06 | 1982-12-06 | Waterproof sheet installation method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6058331B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63163944U (en) * | 1987-04-15 | 1988-10-26 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60126413A (en) * | 1983-12-10 | 1985-07-05 | Taiyo Kogyo Kk | Laying method of water impermeable sheet on reclaimed ground |
-
1982
- 1982-12-06 JP JP57212667A patent/JPS6058331B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63163944U (en) * | 1987-04-15 | 1988-10-26 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59106612A (en) | 1984-06-20 |
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