JPS58139889A - Anchor for soft ground - Google Patents
Anchor for soft groundInfo
- Publication number
- JPS58139889A JPS58139889A JP2121682A JP2121682A JPS58139889A JP S58139889 A JPS58139889 A JP S58139889A JP 2121682 A JP2121682 A JP 2121682A JP 2121682 A JP2121682 A JP 2121682A JP S58139889 A JPS58139889 A JP S58139889A
- Authority
- JP
- Japan
- Prior art keywords
- anchor
- main body
- soft ground
- plow
- hollow box
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/24—Anchors
- B63B21/26—Anchors securing to bed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/24—Anchors
- B63B21/26—Anchors securing to bed
- B63B2021/262—Anchors securing to bed by drag embedment
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は軟弱地盤用アンカー、特に軟弱地盤の海底に用
いる鋤形アンカーに関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an anchor for use on soft ground, and particularly to a plow-shaped anchor for use on a seabed with soft ground.
将来海洋構造物に対する督簀が増大していくことが予想
され、七〇＊＊も大蓋化すると思われるが、それに供う
構造物Ｏけい留に用いるアンカーに対しても、善別な考
慮が必要となっている。海洋構造物のこのような大蓋化
ＫｆＰい、そＯ建造に秦しては、ある建造段階から洋上
作業の必要性が生じる。そ〇九めに本体を安全にけい留
する必要があシ、更に施工用船舶機械のけい奮も必要で
ある。ま九浮標、燈台、浮遊式構造物等の丸めの半永久
アンカーもその開発が期待されてい石。It is expected that the number of offshore structures to be impounded will increase in the future, and 70** will likely become larger. is needed. In the construction of such large-covered offshore structures, the need for offshore work arises from a certain construction stage. Ninth, it is necessary to safely anchor the main body, and it is also necessary to mobilize the ship's machinery for construction. The development of round semi-permanent anchors for buoys, lighthouses, floating structures, etc. is also expected.
従来洋上作業で使用され、軟弱地盤において十分１１！
！駐力を得ることのできるアンカーとしては
■船舶用アンカー
■プ關ツク式アンカー
■杭式アンカー
■そＯ傭の方式によるアンカー
等があるがそれぞれ以下の点で問題があった。Conventionally used for offshore work, 11 is sufficient on soft ground!
! Examples of anchors that can provide parking power include: ■ Ship anchors ■ Push-in type anchors ■ Pile type anchors ■ Other type anchors, but each of them has the following problems.
■船舶用アンカー −）鋼製であり高価である。■Anchor for ships −) Made of steel and expensive.
伽）把駐力の大のものは運搬に問題がある。佽) Items with large holding power have problems in transportation.
■ブーツタ式アンカー ←）重量が大きい。■Boost type anchor ←) It is heavy.
−）堆拳扱いに問題がある。−) There is a problem with the way it is handled.
（４り砂地盤に適するが、軟ｌＩ地盤には不適当であ纂
。(Suitable for sandy ground, but unsuitable for soft ground.)
■杭式アンカー 偽）海中施工であるので工費が大きい。■Pile type anchor (False) Construction costs are high because it is undersea construction.
−）工期がかかシ、短期間の使用には不ｊｌ轟である。-) The construction period is long, making it unsuitable for short-term use.
■その他の方式によるアンカー
（ａ）ナクシ璽ンアンカー勢があるが、これらＫついて
は現在−発中のものが多く信頼度が低い。■Anchors using other methods (a) There are anchors, but most of these are currently in use and have low reliability.
本発明の軟弱地盤用アンカーは上記の問題を解決するよ
うにしえものであって上履及び下履を欠如した中空ゼツ
タス状の本体を有し、その前面版体が上部よ）下ＩＩＫ
向うに従って前方に傾斜する鋤形をなすことを特徴とす
る。The anchor for soft ground of the present invention is designed to solve the above problem, and has a hollow zetsut-like body lacking upper and lower shoes, and the front face of the main body is located at the upper part (lower IIK).
It is characterized by a plow-shaped shape that slopes forward as it approaches.
以下図面によって本発＠Ｏ実施例を説明する。The present @O embodiment will be explained below with reference to the drawings.
本発明のアンカーは基本的には第１図、第意図に示すよ
うに上履及び下履を欠如し友中空ボックス状の鉄筋コン
クリート本体１によ〕形成し、そ０＠面臘体２を本体１
の両側より若干側方に延畏し且つ上部よシ下部に向うに
従って前方に傾斜する鋤形ならしめる。３は前記前面版
体３に連結し九チェーンである。The anchor of the present invention is basically formed of a hollow box-shaped reinforced concrete body 1 which lacks upper and lower shoes, as shown in FIG. 1
It is shaped like a plow, extending slightly laterally from both sides and sloping forward from the top to the bottom. 3 is a nine chain connected to the front plate body 3.
本発明アンカーは上記のような構成であるからアンカー
はアンカーが動き出そうとする時の受働土庄上、ボック
ス本体底面の拳擦抵抗及び粘着抵抗、更に側面コンクリ
ート版の＠面摩線抵抗によ〉、抵抗力を得るようになシ
、また鋤形Ｏ＊画履体雪は外力が作用すると、海底中に
下方に食い込んで、更に把駐力が増大する。Since the anchor of the present invention has the above-mentioned structure, when the anchor is about to start moving, the anchor resists the friction resistance and adhesion resistance of the bottom surface of the box body, as well as the friction resistance of the side concrete slab. When an external force acts on the plow-shaped O* shoe-shaped snow, it digs downward into the seabed, further increasing its holding power.
アンカーにかかる張力が多少上向きでも、アンカーは下
方に食い込み浮き上がらないが第３図に示すようにシン
カー４を用いれば更に効果的である。Even if the tension applied to the anchor is slightly upward, the anchor will bite downward and will not rise, but it is more effective if a sinker 4 is used as shown in FIG.
崗、第１１１において器は海洋構造物、６はフーーテン
ダポンツーンを九は台船、７はハンガーである。In the 111th vessel, the vessel is a marine structure, 6 is a pontoon, 9 is a barge, and 7 is a hanger.
崗、本発明アンカーＯＳの実施例においては１１１１４
ＩｉＩＫ示すように更に本体１の後面版体８を前面層体
重と同様に鋤形に傾斜せしめても稟い。11114 in the embodiment of the anchor OS of the present invention
As shown in IiIK, the rear plate 8 of the main body 1 may also be tilted in a plow-like shape in the same manner as the front layer weight.
本発明アンカーの設置方法を説明すれば下記Ｏ−Ａ如で
ある。The method of installing the anchor of the present invention will be explained as follows.
■ 本体１を台船、７ｏ−テングクレーンまたは海上作
業船で設置場所へ運搬する。積込、積下しにはクレーン
を使用する。■ Transport the main body 1 to the installation site using a barge, 7o-prong crane, or offshore work boat. A crane will be used for loading and unloading.
■ 所定の位置にクレーン船あるいは投入用特殊装置１
１を取シ付は九専用船で１本体１の四隅につり環をつけ
て、鉛直につりおろす。■ Place the crane ship or special equipment for loading 1 at the designated location.
To attach 1, attach hanging rings to the four corners of 1 body 1 and hang it vertically using a specialized boat.
■ 軟弱地盤中に自重により貫入し、設置を終了する。■ Penetrates into soft ground due to its own weight and completes installation.
本発明アンカーの利点は下記の通りである。The advantages of the anchor of the present invention are as follows.
■ 軟弱地盤におけるアンカーとして安定し九把駐力を
持ち、アンカーが斜め上方に引張されても、下方に食い
込み、更に把駐力が増大する。従ってアンカーは浮き上
がらない。■ It is stable as an anchor in soft ground and has a strong holding force, and even if the anchor is pulled diagonally upward, it bites downward and further increases the holding force. Therefore, the anchor will not float.
■ コンクリート製とすれば腐食の心配がなく、製作材
料が入手し易いので、使用場所Ｏ至近距離で安価に製作
で禽る。■ If it is made of concrete, there is no need to worry about corrosion, and the manufacturing materials are easy to obtain, so it can be manufactured at a low cost close to the place of use.
■ 従来のブーツク式アンカーに比べて軽量で、堆り扱
いが容易である。■ It is lighter than conventional boot-stack anchors and easier to handle.
■ 長期間、短期間のいずれの使用にも適する。■ Suitable for both long-term and short-term use.
■ 撤去時の丸めに、アンカーの鋤形前面版体Ｏ反対側
にあらかじめチェーンをつないでおけば、容易にこれを
引＊＊げることができる。■ If you connect a chain to the opposite side of the plow-shaped front plate O of the anchor in advance to round it up when removing it, you can pull it easily.
■ 形状、寸法は地盤と目的により変化でき、使用材料
としては鋼製も可能である。■ Shape and dimensions can vary depending on the ground and purpose, and steel can also be used as a material.
＃Ｉ１図は本発明アンカーの千１ｆｌｉ！ｉｔ、 ｌＫ
ｚ図はその側面図、第３図はその配置方法説明図、第４
図唸本発明アンカーの他の実施例を示す側面図である。
ｌ・・・鉄筋コンクリート本体、２・・・前面版体、３
・・・チェーン、４・・・シンカー、５・・・海洋構造
物、６・・・７０−テンダボンツーン、７・・・バンカ
ー、暮・・・後面原体。
ＱｃＡｔ／#I1 diagram shows the anchor of the present invention! it, lK
Figure z is its side view, Figure 3 is an explanatory diagram of its arrangement method, and Figure 4 is its side view.
FIG. 3 is a side view showing another embodiment of the anchor of the present invention. l...Reinforced concrete body, 2...Front plate, 3
...Chain, 4...Sinker, 5...Ocean structure, 6...70-Tender Bontoon, 7...Bunker, Kurei...Back surface body. QcAt/
Claims (1)
体を有し、そＯ前面版体が上部よｐ下部に向うに従って
前方に傾斜する鋤形を表すことを特徴とする軟弱地盤用
アンカー。(1) For use on soft ground, it has a round hollow box-shaped main body lacking an upper plate and a lower plate, and the front plate body has a plow-shaped shape that slopes forward from the upper part to the lower part. anchor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2121682A JPS58139889A (en) | 1982-02-15 | 1982-02-15 | Anchor for soft ground |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2121682A JPS58139889A (en) | 1982-02-15 | 1982-02-15 | Anchor for soft ground |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58139889A true JPS58139889A (en) | 1983-08-19 |
Family
ID=12048809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2121682A Pending JPS58139889A (en) | 1982-02-15 | 1982-02-15 | Anchor for soft ground |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58139889A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU731681B2 (en) * | 1997-02-27 | 2001-04-05 | Roslagens Marincenter Ab | Anchoring device |
-
1982
- 1982-02-15 JP JP2121682A patent/JPS58139889A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU731681B2 (en) * | 1997-02-27 | 2001-04-05 | Roslagens Marincenter Ab | Anchoring device |
| CN1099356C (en) * | 1997-02-27 | 2003-01-22 | 罗斯拉根斯马林森特股份公司 | Anchoring device |
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