JPS6053127B2 - Stable construction method for underwater structures - Google Patents
Stable construction method for underwater structuresInfo
- Publication number
- JPS6053127B2 JPS6053127B2 JP17531082A JP17531082A JPS6053127B2 JP S6053127 B2 JPS6053127 B2 JP S6053127B2 JP 17531082 A JP17531082 A JP 17531082A JP 17531082 A JP17531082 A JP 17531082A JP S6053127 B2 JPS6053127 B2 JP S6053127B2
- Authority
- JP
- Japan
- Prior art keywords
- rubble
- protective
- sheet
- underwater
- base
- 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
- 238000010276 construction Methods 0.000 title claims description 4
- 230000001681 protective effect Effects 0.000 claims description 22
- 238000009991 scouring Methods 0.000 description 6
- 239000004576 sand Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000000087 stabilizing effect Effects 0.000 description 3
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002265 prevention Effects 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)
- Revetment (AREA)
Description
【発明の詳細な説明】
従来波浪の大きい個所、洗掘の激しい個所では水中構
造物の基底部捨石の不等沈下や洗掘防止を口直として、
基底部に防砂マットを敷設するマツトエ法が採用されて
いるが、敷設後、先端部分の捨石が散乱したり、不等沈
下が生じる。[Detailed Description of the Invention] Conventionally, in areas with large waves and severe scouring, the aim is to prevent uneven settling of rubble at the base of underwater structures and to prevent scouring.
The Matsutoe method is used to lay sand prevention mats at the base, but after the mats are laid, rubble at the tips of the mats is scattered and uneven settlement occurs.
本発明はこのような欠点を除去するために提案された
もので、自由端縁に保護捨石保持部材の配設された可撓
性シートを水中構造物の基底部に敷設し、同基底部の周
縁から突出する前記可撓性シートの端部に保護捨石を捨
込むことを特徴とする水中構造物の安定工法に係るもの
である。The present invention has been proposed in order to eliminate such drawbacks, and involves laying a flexible sheet with a protective rubble retaining member on the free edge at the base of an underwater structure, and The present invention relates to a method for stabilizing an underwater structure, characterized in that protective rubble is thrown into the end of the flexible sheet protruding from the periphery.
本発明においては前記したように、水中構造物の基底
部に敷設した可撓性シートにおける前記水中構造物の周
縁部からの突出端部に保護捨石を捨込むようにしたので
、水中地盤における同保護捨石部分が初期洗掘を受ける
と、同保護捨石の重量により、同捨石とともに、前記可
撓性シートの突出端部が徐々に埋設し、前記保護捨石が
アンカーの用を果すことにより、同突出端部が水底地盤
内に碇着される。In the present invention, as described above, protective rubble is disposed of at the end of the flexible sheet laid at the base of the underwater structure that protrudes from the periphery of the underwater structure. When the protective rubble portion undergoes initial scour, the protruding end of the flexible sheet is gradually buried together with the protective rubble due to the weight of the protective rubble, and the protective rubble acts as an anchor, causing the same to be buried. The protruding end is anchored in the underwater ground.
この際前記シートの自由端縁には保護捨石保持部材が配
設されているので、前記保護捨石は常に可撓性シートの
端部上に確固と保持され、同シート突出端部が波浪等に
よつて洗掘を受けても、保護捨石が波浪によつて容易に
散逸するとがなく、水底地盤に埋設されて捨石基礎部の
先端が崩落することがなく、この結果、前記シート上の
保護捨石によつて自然な状態で根固め化され水中構造物
の水流、波浪等による洗掘に起因する不等沈下による、
傾斜、沈下が防止されるとともに、前記可撓性シートの
洗掘に対応する動揺が少なくなるので、同シートの破損
が少なくなり、前記シートの安定した防砂効果が得られ
る。 また本発明の方法は従来のアンカー工法に比して
装置が軽く、特殊な装置を不要とするので施工性がよく
、工費が節減される等、本発明は多くの利点を有するも
のである。 以下本発明を図示の実施例について説明す
る。At this time, since a protective rubble holding member is provided on the free edge of the sheet, the protective rubble is always firmly held on the edge of the flexible sheet, and the protruding edge of the sheet is protected from waves, etc. Therefore, even if the protective rubble is subjected to scouring, it will not be easily scattered by the waves, and the tip of the rubble foundation will not collapse due to being buried in the underwater ground. As a result, the protective rubble on the sheet Due to uneven settlement caused by scouring of underwater structures due to water currents, waves, etc.,
Inclination and subsidence are prevented, and since the flexible sheet is less shaken in response to scouring, the sheet is less likely to be damaged, and a stable anti-sand effect of the sheet can be achieved. Furthermore, the method of the present invention has many advantages, such as lighter equipment and no special equipment required than the conventional anchor construction method, resulting in better workability and reduced construction costs. The present invention will be described below with reference to the illustrated embodiments.
１は塩化ビニールシート等より構成された水中構造物
の基底部安定用の可撓性防砂シートで、その自由端縁に
硬質塩化ビニール板等より構成された半円形、Ｕ字形、
三角形等の保護捨石保持部材２が一体に固着されている
。 而して前記シート１をケーソンの如き水中構造物の
基底部Ａに敷設し、同構造物の基底部Ａ周縁より突出し
たシート１の端部と基底部下端法面との間に保護捨石３
を捨込み、前記保護捨石保持部材２によつて保護捨石３
を保持し、その散逸を防止する。1 is a flexible anti-sand sheet for stabilizing the base of an underwater structure made of a vinyl chloride sheet, etc., with a semicircular, U-shaped,
A protective rubble holding member 2, such as a triangular shape, is fixed integrally. The sheet 1 is laid on the base A of an underwater structure such as a caisson, and a protective rubble 3 is placed between the end of the sheet 1 that protrudes from the periphery of the base A of the structure and the slope of the lower end of the base.
The protective rubble 3 is removed by the protective rubble holding member 2.
and prevent its dissipation.
（第１図参照） 而して前記シート１の突出端部下面の
水底地盤Ｂが水流、破浪等によつて初期洗掘を受けると
、前記シートの１の突出端部が保護捨石とともに徐々に
埋設し、（第２図参照）遂に水底地盤Ｂ内に碇着される
。(Refer to Figure 1) When the underwater ground B on the lower surface of the protruding end of the sheet 1 is initially scoured by water flow, breaking water, etc., the protruding end of the sheet 1 is gradually washed away with protective rubble. It is buried (see Figure 2) and finally anchored in underwater ground B.
（第３図参照）而して前記シート端部上の保護捨石３は
捨石保持部材２によつて、水流、波浪等による散乱を防
止される。この結果、前記シート１の自由端部は水底地
盤Ｂの土砂中に安定した状態に碇着され、同シート１上
の保護捨石３によつて前記基底部Ａが自然状態で根固め
化され、前記シート端部下方の水底地盤Ｂの土砂の洗掘
による不等沈下に起因する、水中構造物の傾斜、沈下が
防止されるものである。(See FIG. 3) The protective rubble 3 on the edge of the sheet is prevented from being scattered by water currents, waves, etc. by the rubble holding member 2. As a result, the free end of the sheet 1 is anchored in a stable state in the earth and sand of the underwater ground B, and the base A is solidified in a natural state by the protective rubble 3 on the sheet 1, This prevents the underwater structure from tilting and sinking due to uneven settling due to scouring of earth and sand in the underwater ground B below the sheet end.
以上本発明を実施例について説明したが、本発明は勿論
このような実施例にだけ局限されるものではなく、本発
明の精神を逸脱しない範囲内で種々の設計の改変を施し
うるものである。Although the present invention has been described above with reference to embodiments, the present invention is, of course, not limited to such embodiments, and can be modified in various ways without departing from the spirit of the present invention. .
第１図乃至第３図は本発明に係る水中構造物の安定工法
の一実施例の工程を示す縦断面図、第４図は可撓性シー
トの斜面図である。
１・・・・・・シート、２・・・・・・保護捨石保持部
材、３・・・・・・保護捨石、Ａ・・・・・・水中構造
物の基底部、Ｂ・・・・・水底地盤。1 to 3 are longitudinal cross-sectional views showing steps of an embodiment of the method for stabilizing underwater structures according to the present invention, and FIG. 4 is a slope view of a flexible sheet. 1... Sheet, 2... Protective rubble holding member, 3... Protective rubble, A... Base of underwater structure, B...・Underwater ground.
Claims (1)
ートを水中構造物の基底部に敷設し、同基底部の周縁か
ら突出する前記可撓性シートの端部に保護捨石を捨込む
ことを特徴とする水中構造物の安定工法。1. A flexible sheet with a protective rubble holding member arranged on its free edge is laid at the base of an underwater structure, and protective rubble is disposed of at the end of the flexible sheet that protrudes from the periphery of the base. A stable construction method for underwater structures characterized by
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17531082A JPS6053127B2 (en) | 1982-10-07 | 1982-10-07 | Stable construction method for underwater structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17531082A JPS6053127B2 (en) | 1982-10-07 | 1982-10-07 | Stable construction method for underwater structures |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5965106A JPS5965106A (en) | 1984-04-13 |
| JPS6053127B2 true JPS6053127B2 (en) | 1985-11-22 |
Family
ID=15993853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17531082A Expired JPS6053127B2 (en) | 1982-10-07 | 1982-10-07 | Stable construction method for underwater structures |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6053127B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6013105A (en) * | 1983-07-04 | 1985-01-23 | Yamamizu Sangyo Kk | Sheet cover for bottom under water |
| JPH0611976B2 (en) * | 1984-06-27 | 1994-02-16 | 山水産業株式会社 | How to build an underwater structure |
-
1982
- 1982-10-07 JP JP17531082A patent/JPS6053127B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5965106A (en) | 1984-04-13 |
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