JPS633095B2 - - Google Patents
Info
- Publication number
- JPS633095B2 JPS633095B2 JP58235841A JP23584183A JPS633095B2 JP S633095 B2 JPS633095 B2 JP S633095B2 JP 58235841 A JP58235841 A JP 58235841A JP 23584183 A JP23584183 A JP 23584183A JP S633095 B2 JPS633095 B2 JP S633095B2
- Authority
- JP
- Japan
- Prior art keywords
- covering sheet
- water
- slope
- water surface
- float
- 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 35
- 238000000034 method Methods 0.000 claims description 3
- 239000002699 waste material Substances 0.000 description 6
- 229920003002 synthetic resin Polymers 0.000 description 5
- 239000000057 synthetic resin Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 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
- 238000007796 conventional method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003032 molecular docking Methods 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、河岸、湖沼その他に構築された堤体を被覆す
る被覆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 covering sheet for covering embankments constructed in ports, seashores, river banks, lakes, marshes, etc. 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、廃棄物中の殊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
全長に亘つて合成樹脂シート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合成樹脂シー
ト５の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
投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 a part of a body of water is divided by an embankment and used as a treatment plant where waste is thrown into the area, particularly harmful components of the waste dissolve or mix with the water and permeate through the embankment and surround the area. It must be ensured that no leakage occurs. Previous attempts have been made to drive steel sheet piles into the embankment as a means of blocking water, but because there are gaps at the joints, a complete water blocking effect could not be expected. 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 each other and connecting the overlapping parts. . In this case, in order to prevent water and sewage containing harmful components from leaking and flowing out, it is preferable to connect the overlapping portions by heat welding. Since this part cannot be welded, a complete water-shielding effect cannot still be expected. Furthermore,
It has been considered to use adhesives or connecting devices as a means of connecting the synthetic resin sheets, but the former is likely to peel off due to the weight of the dumped material and lose water-tightness, and the latter is not watertight. Therefore, it is unsuitable for embankments 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複数個
の浮子を取外し可能に装着するとともに長手方向
へ向うもう一つの側縁側に余幅部を残して複数個
の浮子を取外し可能に装着し、これらの浮子によ
つて前記被覆シートを水面に浮上させて堤体と平
行に配置し、余幅部側の浮子を堤体の法面に接岸
させて余幅部を水面上方の法面および天端に沿つ
て引揚げ、次で浮子を取外して水面下方の法面お
よび水底に沿い被覆シートを沈下させることを特
徴としている。 That is, the method of laying a covering sheet on an embankment body according to the present invention includes removably attaching a plurality of floats to one side edge of a long, water-impermeable and flexible covering sheet in the longitudinal direction. At the same time, a plurality of floats are removably attached leaving an extra width on the other side edge facing in the longitudinal direction, and the coating sheet is floated on the water surface by these floats and placed parallel to the embankment body. Then, the float on the extra width side is brought to shore on the slope of the embankment body, and the extra width section is pulled up along the slope above the water surface and along the top edge.Then, the float is removed and placed on the slope below the water surface and on the water bottom. The feature is that the covering sheet is made to sink.
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 with reference to a 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
縁およびもう一つの側縁から適当幅だけ中心へ寄
つた個所には取付環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，
１７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を水面６に投入し浮子１
６，１７の浮力で浮上させる。被覆シート１１の
端縁は桁材１８に連結され、この桁材１８をロー
プ１９で船２０に牽引させることによつて台船１
３で作られた被覆シート１１を順次水面６に延展
状態で浮上させるのである。被覆シート１１の一
つの側縁とその内側の浮子１７との間の余幅部２
１は折曲げて浮子１７を装着した取付環１５に繋
着してある。 Attachment rings 15 are provided at appropriate intervals at one side edge in the longitudinal direction of this covering sheet 11 and at a location located an appropriate width toward the center from the other side edge. 15 and 16 floats,
17 at appropriate intervals, the covering sheet 11 is thrown into the water surface 6 from the opposite end of the barge 13, and the float 1
The buoyancy of 6,17 makes it levitate. The edge of the covering sheet 11 is connected to a girder 18, and the girder 18 is towed by a ship 20 with a rope 19 to be attached to the barge 1.
The covering sheets 11 made of 3 are successively floated on the water surface 6 in a stretched state. Extra width portion 2 between one side edge of the covering sheet 11 and the float 17 inside thereof
1 is bent and connected to a mounting ring 15 on which a float 17 is attached.
前記の作業を堤体１に接近した個所で行い、台
船１３を一個所に停泊固定して被覆シート１１を
堤体１と平行に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 performed at a location close to the embankment body 1, and the barge 13 is moored and fixed at one location to spread the covering sheet 11 parallel to the embankment body 1. When the strip 12 runs out on the way, a new strip 12 is placed in the box 14, and the front and rear edges are connected to each other by welding to form one long strip-shaped covering sheet 11 over a predetermined installation section. do.
次に、被覆シート１１を水面６に浮上させる作
業が終つたとき、第３図に示すように堤体１に接
近し且つこれと平行に浮いている被覆シート１１
の余幅部２１側の側縁を引張つて堤体１に引寄
せ、浮子１７を堤体１の法面３にほぼ接岸させ
（第４図）、余幅部２１を法面３の水面上方および
天端２に沿つて引揚げ（第５図）、この余幅部２
１を天端２に固定した後に浮子１６，１７を取外
して被覆シート１１のこの二列の浮子１６，１７
の間の部分を自重で沈下させるもので、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 floating the covering sheet 11 to the water surface 6 is completed, the covering sheet 11 approaching and floating parallel to the embankment body 1 as shown in FIG.
Pull the side edge of the extra width part 21 side to the embankment body 1, bring the float 17 almost to the slope 3 of the embankment body 1 (Fig. 4), and move the extra width part 21 above the water surface of the slope face 3. and along the top edge 2 (Fig. 5), and this extra width part 2
1 to the top end 2, the floats 16, 17 are removed and the two rows of floats 16, 17 on the cover sheet 11 are fixed.
The part between them sinks under its own weight, and is laid down along the slope 3 below the water surface 6 and the water bottom 4 (Fig. 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
の上で行うときは被覆シート１１の先端縁を一個
所に固定して台船１３を移動させることによつて
被覆シート１１を水面６に浮かせることもある。 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. Further, when the embankment body 1 is constructed to completely surround the reclaimed land side, the front and rear edges of the covering sheet 11 are welded together to make it watertight, and then the embankment is laid down along the slope 3. Furthermore, the work of welding the strips 12 to form the covering sheet 11 may be performed on a workbench protruding from the embankment body 1 or on land;
When this is done above, the leading edge of the covering sheet 11 may be fixed in one place and the barge 13 may be moved to float the covering sheet 11 on the water surface 6.
以上のように本発明によると、法面の水面上方
および天端に敷設される部分を余幅部として浮子
の側方に突出させておき、反対の側縁にも浮子を
取付けて長尺の被覆シートをほぼ完全に水面に浮
上させた状態で堤体と平行に配置させるので、被
覆シートを水面に浮かせ必要に応じて移動させる
作業が容易に行えるばかりか、余幅部側の浮子を
法面に接岸させて余幅部を水面上方の法面および
天端に沿つて引揚げた後に浮子を外して水面下方
の法面および水底に沿い被覆シートを沈下させる
ので、被覆シートは天端側の敷設状態に応じて沈
下し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, the part laid above the water surface and the top of the slope is made to protrude to the side of the float as an extra width part, and the float is also attached to the opposite side edge to make a long Since the covering sheet is placed parallel to the embankment body with it almost completely floating on the water surface, it is not only easy to float the covering sheet on the water surface and move it as necessary, but also to remove the float on the extra width side. After docking on the surface and lifting the extra width along the slope above the water surface and the top, the float is removed and the cover sheet is lowered along the slope below the water surface and the bottom, so the cover sheet is on the top side. Depending on the state of the construction, it sinks and is laid in close contact with the slope. Therefore, by preparing a water-impermeable covering sheet in advance, the troublesome work of sequentially connecting it after laying it is not necessary, and the drawback of incomplete water-blocking properties is also eliminated, and especially water containing harmful substances can be avoided. 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，
１７……浮子、２１……余幅部。
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,
17...Float, 21...Extra width part.
Claims (1)
ートの長手方向へ向う一つの側縁に複数個の浮子
を取外し可能に装着するとともに長手方向へ向う
もう一つの側縁側に余幅部を残して複数個の浮子
を取外し可能に装着し、これらの浮子によつて前
記被覆シートを水面に浮上させて堤体と平行に配
置し、余幅部側の浮子を堤体の法面に接岸させて
余幅部を水面上方の法面および天端に沿つて引揚
げ、次で浮子を取外して水面下方の法面および水
底に沿い被覆シートを沈下さ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 to one longitudinal side edge of a long water-impermeable and flexible cover sheet, and an extra width is provided on the other longitudinal side edge. A plurality of floats are removably attached, and the covering sheet is floated on the water surface by these floats and placed parallel to the embankment body, and the float on the extra width side is moored to the slope of the embankment body. The covering sheet is applied to an embankment body characterized in that the extra width part is pulled up along the slope and the top edge above the water surface, and then the float is removed and the covering sheet is lowered along the slope and the water bottom below the water surface. A method of laying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58235841A JPS60129315A (en) | 1983-12-14 | 1983-12-14 | Method of laying cover sheet over weir body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58235841A JPS60129315A (en) | 1983-12-14 | 1983-12-14 | Method of laying cover sheet over weir body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60129315A JPS60129315A (en) | 1985-07-10 |
| JPS633095B2 true JPS633095B2 (en) | 1988-01-21 |
Family
ID=16992057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58235841A Granted JPS60129315A (en) | 1983-12-14 | 1983-12-14 | Method of laying cover sheet over weir body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60129315A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03103586U (en) * | 1990-02-10 | 1991-10-28 | ||
| US11762306B2 (en) | 2018-09-05 | 2023-09-19 | Nok Corporation | Electroconductive roll |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0684497B2 (en) * | 1986-08-06 | 1994-10-26 | 株式会社資生堂 | Azole composition |
| US5104258A (en) * | 1991-06-21 | 1992-04-14 | Ianell Allan W | Bionic dunes |
-
1983
- 1983-12-14 JP JP58235841A patent/JPS60129315A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03103586U (en) * | 1990-02-10 | 1991-10-28 | ||
| US11762306B2 (en) | 2018-09-05 | 2023-09-19 | Nok Corporation | Electroconductive roll |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60129315A (en) | 1985-07-10 |
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