JPS633097B2 - - Google Patents
Info
- Publication number
- JPS633097B2 JPS633097B2 JP58237550A JP23755083A JPS633097B2 JP S633097 B2 JPS633097 B2 JP S633097B2 JP 58237550 A JP58237550 A JP 58237550A JP 23755083 A JP23755083 A JP 23755083A JP S633097 B2 JPS633097 B2 JP S633097B2
- Authority
- JP
- Japan
- Prior art keywords
- covering sheet
- water
- float
- embankment body
- slope
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 238000010276 construction Methods 0.000 claims description 4
- 239000002699 waste material Substances 0.000 description 7
- 229920003002 synthetic resin Polymers 0.000 description 5
- 239000000057 synthetic resin Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000010865 sewage Substances 0.000 description 2
- 206010040844 Skin exfoliation Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
- Revetment (AREA)
- Processing Of Solid Wastes (AREA)
Description
【発明の詳細な説明】
本発明は埋立護岸、廃棄物処理場など港湾、海
岸、河川、湖沼その他に構築された堤体に被覆シ
ートを敷設する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 covering sheet on embankments constructed in ports, seashores, rivers, lakes and marshes such as landfill seawalls and waste disposal sites.
例えば海域、水域の一部を堤体で仕切つてその
中に廃棄物を投入する処理場として使用する場
合、廃棄物中の特に有害成分が水に溶解または混
合して堤体を透過し周囲に流出することがないよ
うにしなければならない。従来、堤体の遮水手段
として鋼矢板を打込むことが試みられたが、それ
らの接手個所に隙間があるため完全な遮水効果は
期待できなかつた。そこで、合成樹脂シートが不
通水性にして可撓性を有することを利用し、例え
ば第１図に示すように堤体１の埋立側の天端２か
ら法面３、水底４に向つて適宜幅の合成樹脂シー
ト５を互いの側縁部を少しずつ重ねて順次敷き並
べ、重なり部分を接続することによつて堤体１の
全長に亘り合成樹脂シート５を被覆することが行
われている。この場合、有害成分を含む水や汚水
が漏洩し流出することのないように、前記重なり
部分は熱溶着による溶接によつて接続するのが好
ましいが、埋立側の水中に没した部分は溶接不可
能であるので完全な遮水効果は依然として期待す
ることができない。更に、合成樹脂シート５の接
続手段として接着剤または連結器具を用いること
も考えられているが、前者は廃棄物の重量で剥離
して遮水性を失う心配があり、また後者は水密性
を有していないので廃棄物処理用の堤体に不適当
である。更にまた、所定長の合成樹脂シートを順
次狭い天端から水底へ向けて法面に沿い引き降す
作業を繰返さなければならずきわめて面倒であ
る。 For example, when a sea area or part of a body of water is separated by an embankment and used as a treatment plant where waste is thrown into the area, particularly harmful components of the waste may dissolve or mix with the water and permeate through the embankment and be released into the surrounding area. It must be ensured that there is no leakage. Conventionally, attempts have been made to drive steel sheet piles as a water-blocking means for the embankment body, but a complete water-blocking effect could not be expected due to the gaps at their joints. Therefore, by utilizing the fact that the synthetic resin sheet is impermeable to water and has flexibility, for example, as shown in Fig. The entire length of the embankment body 1 is covered with the synthetic resin sheets 5 by sequentially laying out the synthetic resin sheets 5 with their side edges slightly overlapping and connecting the overlapping parts. In this case, it is preferable to connect the overlapping parts by heat welding to prevent water or sewage containing harmful components from leaking out, but the parts submerged in water on the landfill side are not welded. However, a complete water-blocking effect cannot still be expected. Furthermore, it has been considered to use an adhesive or a connecting device as a means of connecting the synthetic resin sheet 5, but the former has the risk of peeling off due to the weight of the waste and loses water-tightness, and the latter has watertightness. Therefore, it is unsuitable for use as an embankment body for waste treatment. Furthermore, it is extremely troublesome to have to repeatedly pull down a synthetic resin sheet of a predetermined length along the slope from the narrow top toward the bottom of the water.
本発明はこのような問題点を解決し、完全な遮
水効果が得られる被覆シートを簡便に敷設するこ
とができる工法を提供することを目的として発明
されたものである。 The present invention was invented with the aim of solving these problems and providing a construction method that can easily lay a covering sheet that provides a complete water-blocking effect.
即ち、本発明に係る堤体に被覆シートを敷設す
る工法は、不通水性にして可撓性を有する長尺の
被覆シートの長手方向へ向う一つの側縁に沿つて
複数個の浮子を取外し可能に装着し、これらの浮
子を水面に浮上させるとともに堤体へ向けた状態
で被覆シートを堤体と平行に配置し、浮子を堤体
の法面にほぼ接岸させて被覆シートの側縁を天端
まで引揚げるとともに浮子を取外し、被覆シート
を天端、法面、水底に沿わせることを特徴として
いる。 That is, the construction method of laying a covering sheet on an embankment body according to the present invention makes it possible to remove a plurality of floats along one longitudinal side edge of a long, water-impermeable and flexible covering sheet. Attach the floats to the surface of the water and place the covering sheet parallel to the embankment with the float facing towards the embankment.The floats are placed almost on the slope of the embankment and the side edges of the covering sheet are placed above the ceiling. It is characterized by the fact that it is pulled up to the end, the float is removed, and the covering sheet is placed along the top, slope, and bottom of the water.
次に、本発明の実施態様を廃棄物処理場のため
に構築された堤体に被覆シートを敷設する場合に
就いて説明する。 Next, an embodiment of the present invention will be described in the case where a covering sheet is laid on an embankment constructed for a waste disposal site.
被覆シート１１は例えば厚さ１〜10mm、幅２〜
10ｍ、長さ50〜100ｍ程度の必要により編組物か
らなる補強層を有する塩化ビニル樹脂シートから
なる帯体１２を幅方向に順次接続し所定幅とした
ものが用いられ、不通水性にして可撓性を有して
いる。 The covering sheet 11 has a thickness of 1 to 10 mm and a width of 2 to 10 mm, for example.
10 m, and a length of about 50 to 100 m. If necessary, a band 12 made of vinyl chloride resin sheets with a reinforcing layer made of a braided material is sequentially connected in the width direction to make a predetermined width, and is made water impermeable and flexible. It has a sexual nature.
先ず、堤体１の埋立側に残留している水の水面
６に台船１３を浮遊させ、帯体１２を折畳み収納
した箱１４の所要数をじぐざぐに且つ帯体１２の
長手方向の側縁部が互いに10〜20cm程度重なるよ
うに台船１３の端部に設置する。前記の箱１４か
ら帯体１２を台船１３の上に引出して重なり部分
を順次適宜幅で熱溶融し圧着することによつて連
続的に溶接し被覆シート１１を形成する。 First, the barge 13 is floated on the water surface 6 of the water remaining on the reclaimed side of the embankment body 1, and the required number of boxes 14 in which the strips 12 are folded and stored are placed on the longitudinal side of the strips 12. They are installed at the end of the barge 13 so that their edges overlap each other by about 10 to 20 cm. The band 12 is pulled out from the box 14 onto the barge 13, and the overlapping portions are successively welded by heat melting and pressure bonding to an appropriate width to form the covering sheet 11.
この被覆シート１１の長手方向へ向う一つの側
縁には取付環１５が適当間隔で設けてあり、台船
１３の上でこの取付環１５に浮子１６を適当間隔
で装着した後に台船１３の反対端部から被覆シー
ト１１を水中に投入し浮子１６が装着されている
側縁の部分をその浮力で水面６に浮上させるもの
で、台船１３で作られた被覆シート１１は水中で
延展状態となるのである。 Attachment rings 15 are provided at appropriate intervals on one side edge in the longitudinal direction of this covering sheet 11, and after attaching floats 16 to the attachment rings 15 at appropriate intervals on the barge 13, The covering sheet 11 is thrown into the water from the opposite end, and the side edge portion where the float 16 is attached is floated to the water surface 6 by its buoyancy, and the covering sheet 11 made by the barge 13 is spread out in the water. It becomes.
前記の作業を堤体１に接近した個所で行い、被
覆シート１１の先端縁を固定するかまたは自由に
浮遊させて台船１３を移動させることによつて被
覆シート１１を堤体１と平行に且つ浮子１６を堤
体１へ向けた状態で延展させるのである。その途
中で帯体１２が出つくしたときは新しい帯体１２
を箱１４に入れ、前後の端縁を互いに溶接により
接続し、所定の敷設区間に亘り一つの長尺帯状の
被覆シート１１を形成する。 The above-mentioned work is carried out at a location close to the embankment body 1, and the covering sheet 11 is made parallel to the embankment body 1 by fixing the leading edge of the covering sheet 11 or floating it freely and moving the barge 13. In addition, the float 16 is extended toward the embankment body 1. If the belt 12 runs out on the way, use a new belt 12.
is placed in a box 14, and the front and rear edges are connected to each other by welding to form one long belt-shaped covering sheet 11 over a predetermined laying section.
次に、被覆シート１１を所定区間に亘つて水中
に投入する作業が終つたとき、第３図に示すよう
に堤体１に接近している被覆シート１１の側縁を
引張つて堤体１に引寄せ、浮子１６を堤体１の法
面にほぼ接岸させ（第４図）、更に側縁を引張つ
て浮子１６と一緒に法面３の水面上方および天端
２に沿つて引揚げ（第５図）、この側縁部を天端
２に固定した後に浮子１６を取外すもので、被覆
シート１１は自重で沈下しているためそのまま水
面６の下方の法面３および水底４に沿つて沈下敷
設される（第６図）。 Next, when the work of putting the covering sheet 11 into the water over a predetermined section is completed, as shown in FIG. The float 16 is brought close to the slope of the embankment body 1 (Fig. 4), and then the side edge is pulled and the float 16 is pulled up together with the float 16 above the water surface of the slope 3 and along the top edge 2 (Fig. 4). 5), the float 16 is removed after this side edge is fixed to the top 2, and since the covering sheet 11 is sinking under its own weight, it sinks along the slope 3 and bottom 4 below the water surface 6. (Figure 6).
尚、被覆シート１１は法面３の傾斜長さに天端
２、水底４の適当長さを加えた幅に作られるもの
で、堤体１が低く且つ法面３が急傾斜のときは前
記のように帯体１２を幅方向に接続することな
く、予め作られた一枚の広幅のものを使用するこ
とができる。また、堤体１が埋立側を完全に囲ん
で構築されているときは被覆シート１１の前後両
端縁を一旦水面６の上に引揚げて互いに溶接し水
密とした後に法面３に沿う沈下敷設を行う。更
に、帯体１２を溶接して被覆シート１１を作る作
業は堤体１に突設した作業台の上または陸上で行
うこともあり、また台船１３の上で行うときはこ
の台船１３を固定して被覆シート１１の先端縁を
適宜の船で引張り移動させることによつて被覆シ
ート１１を水中に延展させることもある。 The covering sheet 11 is made to have a width equal to the slope length of the slope 3 plus the appropriate lengths of the top 2 and the bottom 4, and when the embankment body 1 is low and the slope 3 is steeply sloped, It is possible to use a single wide band made in advance without connecting the band 12 in the width direction. In addition, when the embankment body 1 is constructed to completely surround the reclaimed side, both front and rear edges of the covering sheet 11 are once raised above the water surface 6 and welded to each other to make it watertight, and then subsidence is laid along the slope surface 3. I do. Furthermore, the work of welding the strips 12 to form the covering sheet 11 may be carried out on a workbench protruding from the embankment body 1 or on land, and when carried out on a barge 13, this barge 13 may be The covering sheet 11 may be spread underwater by fixing the covering sheet 11 and pulling and moving the leading edge of the covering sheet 11 with an appropriate boat.
以上のように本発明によると、一つの側縁に浮
子を取付けて長尺の被覆シートをこの浮子を水面
に浮上させた状態で堤体と平行に配置させるの
で、被覆シートを必要に応じて移動させる作業が
容易に行えるばかりか、浮子を法面にほぼ接岸さ
せてこの側縁を簡単に捕えて天端まで引揚げるこ
とができるものである。そして自重で水中にほぼ
堅に沈下している被覆シートは天端に引揚げたと
きそのまま法面に沿つて密着した状態で敷設され
るのである。従つて、不通水性の被覆シートを予
め準備しておくことにより、敷設した後に順次接
続するという面倒な作業が不要になるとともに遮
水性が不完全であるという欠点もなくなり、特に
有害物質含有の水や汚水が周囲の水域に流出する
廃棄物処理場の堤体の公害防止手段に適するもの
である。 As described above, according to the present invention, a float is attached to one side edge and a long covering sheet is placed parallel to the embankment body with the float floating on the water surface, so the covering sheet can be moved as needed. Not only is it easy to move the float, but it can also be pulled up to the top by bringing the float close to the slope and easily catching the side edge of the float. The cover sheet, which has been submerged almost firmly in the water due to its own weight, is laid down along the slope in close contact with the slope when it is pulled up to the top. Therefore, by preparing a water-impermeable covering sheet in advance, the troublesome work of sequentially connecting it after installation is not necessary, and the disadvantage of incomplete water-blocking properties is also eliminated, and it is especially effective against water containing harmful substances. It is suitable as a pollution prevention measure for embankments of waste treatment plants where wastewater and sewage flows into surrounding water bodies.
第１図は従来工法の斜視説明図、第２図は本発
明の被覆シートを作り水面に浮上させる実施態様
を示す平面図、第３図、第４図、第５図、第６図
は被覆シートを敷設する工程の断面図である。
１……堤体、２……天端、３……法面、４……
水底、６……水面、１１……被覆シート、１６…
…浮子。
Fig. 1 is a perspective explanatory view of the conventional method, Fig. 2 is a plan view showing an embodiment of the present invention in which a covering sheet is made and floated on the water surface, and Figs. 3, 4, 5, and 6 are coating sheets. It is a sectional view of the process of laying a sheet. 1... Embankment body, 2... Top, 3... Slope, 4...
Water bottom, 6...Water surface, 11...Covering sheet, 16...
...Floating child.
Claims (1)
ートの長手方向へ向う一の側縁に沿つて複数個の
浮子を取外し可能に装着し、これらの浮子を水面
に浮上させるとともに堤体へ向けた状態で被覆シ
ートを堤体と平行に配置し、浮子を堤体の法面に
ほぼ接岸させて被覆シートの側縁を天端まで引揚
げるとともに浮子を取外し、被覆シートを天端、
法面、水底に沿わせることを特徴とする堤体に被
覆シートを敷設する工法。1. A plurality of floats are removably attached along one longitudinal side edge of a long water-impermeable and flexible covering sheet, and these floats are floated to the water surface and attached to the embankment body. Place the covering sheet parallel to the embankment body with the float facing toward the embankment body, bring the float almost to the slope of the embankment body, pull up the side edge of the covering sheet to the top, remove the float, and move the covering sheet to the crown,
A construction method in which a covering sheet is laid on the embankment body, which is characterized by following the slope surface and water bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58237550A JPS60129317A (en) | 1983-12-16 | 1983-12-16 | Method of laying cover sheet over weir body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58237550A JPS60129317A (en) | 1983-12-16 | 1983-12-16 | Method of laying cover sheet over weir body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60129317A JPS60129317A (en) | 1985-07-10 |
| JPS633097B2 true JPS633097B2 (en) | 1988-01-21 |
Family
ID=17016989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58237550A Granted JPS60129317A (en) | 1983-12-16 | 1983-12-16 | Method of laying cover sheet over weir body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60129317A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04114853A (en) * | 1990-09-03 | 1992-04-15 | Matsushita Electric Ind Co Ltd | Outer packaging corrugated cardboard box for large-sized television set |
| JPH07205754A (en) * | 1994-05-13 | 1995-08-08 | Kazukimi Yamauchi | Mounting plate for seat belt |
| JP4942039B2 (en) * | 2007-07-09 | 2012-05-30 | 太陽工業株式会社 | Impermeable structure in landfill |
| JP5209071B2 (en) * | 2011-02-08 | 2013-06-12 | 株式会社東芝 | Methane fermentation tank and bottom sheet construction method |
-
1983
- 1983-12-16 JP JP58237550A patent/JPS60129317A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60129317A (en) | 1985-07-10 |
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