JPH08169392A - Method for laying horizontal drain material and work barge for laying the same - Google Patents
Method for laying horizontal drain material and work barge for laying the sameInfo
- Publication number
- JPH08169392A JPH08169392A JP6334244A JP33424494A JPH08169392A JP H08169392 A JPH08169392 A JP H08169392A JP 6334244 A JP6334244 A JP 6334244A JP 33424494 A JP33424494 A JP 33424494A JP H08169392 A JPH08169392 A JP H08169392A
- Authority
- JP
- Japan
- Prior art keywords
- horizontal drain
- drain material
- movable support
- support beam
- laying
- 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.)
- Granted
Links
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
Description
【０００１】イ．発明の目的 (1) 産業上の利用分野 この発明は、水底に帯状の水平ドレーン材を平面的に敷
設する方法及び該方法を実施するために使用されるその
敷設作業船に関する。A. OBJECT OF THE INVENTION (1) Field of Industrial Application The present invention relates to a method for laying a strip-shaped horizontal drain material on a water floor in a plane, and a laying work ship used for carrying out the method.
【０００２】(2) 従来の技術 水底の軟弱地盤の改良のため、軟弱地層中に砂杭等の鉛
直ドレーン材を所定間隔を保って鉛直状に打設し、表層
部に水平ドレーン材を敷設することは公知に属するが、
近年においてこの水平ドレーン材として、芯材としての
パブリックドレーンと該パブリックドレーンを包囲する
フィルター材とからなる板状ドレーン材の使用が試みら
れている。なお、パブリックドレーン及びフィルタ材は
ともにその素材に合成樹脂が好適なものとして使用され
る。そして、水底への水平ドレーン材の敷設のため、敷
設作業船が使用されるが、従来の敷設作業においては、
単に、敷設作業船上にロール状に巻き取って設置した水
平ドレーン材を繰り出し、水底へ着底させた後、該水平
ドレーン材上に砂利・砂等を上載する手段を採ってい
る。あるいは、また、重りとなる固定部材を予め取り付
けた水平ドレーン材を繰り出して敷設する手段も採られ
る。(2) Conventional technology In order to improve soft ground at the bottom of the water, vertical drain materials such as sand piles are laid vertically in the soft ground layer at a predetermined interval, and horizontal drain materials are laid on the surface layer. It is well known that
In recent years, as the horizontal drain material, it has been attempted to use a plate drain material including a public drain as a core material and a filter material surrounding the public drain. For the public drain and the filter material, synthetic resin is preferably used as the material. And a laying work boat is used for laying the horizontal drain material on the bottom of the water, but in the conventional laying work,
The horizontal drain material simply wound up in a roll shape on a laying work ship is fed out, and after it has reached the bottom of the water, gravel, sand, etc. are placed on the horizontal drain material. Alternatively, a means for feeding and laying a horizontal drain material to which a fixing member serving as a weight is previously attached may be adopted.
【０００３】しかしながら、これら前者・後者のいずれ
の手段にあっても、作業船の進行とともに水平ドレーン
材が水底に着底するまでに種々の攪乱要因を受け、所望
どおり敷設され難く、施工の信頼度が乏しく、更には水
平ドレーン材が破断するという事態に立ち至ることにな
る。従って、前者の手段にあっては、このため、水平ド
レーン材の強度を必要以上に大きく採る必要があり、ま
た、後者の手段にあっては巻き取られている水平ドレー
ン材の送り出し装置の駆動力を大きくする必要があり、
設備費が嵩む等の問題点がある。However, regardless of the former or the latter, as the work boat progresses, the horizontal drain material is subject to various disturbing factors until it reaches the bottom of the water, and it is difficult to lay it as desired, and the construction reliability is high. This leads to a situation where the horizontal drain material is broken and the degree of failure is low. Therefore, in the former method, therefore, it is necessary to take the strength of the horizontal drain material greater than necessary, and in the latter method, the drive device for the wound horizontal drain material is driven. I need to increase my strength,
There are problems such as increased equipment costs.
【０００４】(3) 発明が解決しようとする問題点 そこで、本発明においては、上記実情に鑑み、作業船の
進行に伴う揺れに影響されず、かつ、効率よく、所望ど
おり水平ドレーン材を水底に敷設できる水平ドレーン材
の敷設方法及びその敷設作業船を提供することを目的と
する。本発明はこのため、作業船を進行工程と停止工程
との２工程に分け、停止工程で水平ドレーン材を水中に
敷設するという基本的発想をもって解決を図ったもので
ある。(3) Problems to be Solved by the Invention In view of the above-mentioned circumstances, therefore, in the present invention, the horizontal drain material is not affected by the sway accompanying the progress of the work boat, and the horizontal drain material is attached to the bottom of the water efficiently as desired. It is an object of the present invention to provide a method for laying a horizontal drain material that can be laid on a ship and a work boat for laying the same. Therefore, the present invention is intended to solve the problem by dividing the work boat into two steps, that is, a traveling step and a stopping step, and laying a horizontal drain material in water in the stopping step.
【０００５】ロ．発明の構成 (1) 問題点を解決するための手段 本発明は具体的には次の構成を取る。すなわち、本発明
の主たる構成は水平ドレーン材の敷設方法であって、請
求項１に記載のとおり、船体には一定幅の開口が長手方
向に形成され、この開口に跨がって移動する複数の可動
支持梁が架設され、該可動支持梁上に帯状をなす水平ド
レーン材を展張し、船の進行状態において進行速度に同
期して水平ドレーン材を前方より後方へ展張させ、船の
停止状態において各可動支持梁を前方へと移動させ、後
方の水平ドレーン材から水中に落とし込んでゆく、こと
を特徴とする。本発明の他の主たる構成は上記方法を実
施するための水平ドレーン材の敷設作業船であって、請
求項２に記載のとおり、一定幅の開口が長手方向に形成
された船体と；前記開口に跨がって移動する複数の可動
支持梁と；前記船体の前部に配され、ロール状に捲回さ
れた水平ドレーン材のロール体を装着し、該水平ドレー
ン材を前記可動支持梁上に展張するドレーン材供給装置
と；を備え、前記可動支持梁の相互は引張り材により一
定間隔に規制されるとともに、最後部の可動支持梁をも
って前後進する駆動装置が配され、かつ、最後部の可動
支持梁には水平ドレーン材を押圧自在とする押え装置が
配されてなる、ことを特徴とする。[0005] b. Configuration of Invention (1) Means for Solving Problems The present invention specifically takes the following configurations. That is, the main configuration of the present invention is a method for laying a horizontal drain material, and as described in claim 1, an opening having a constant width is formed in the hull in the longitudinal direction, and a plurality of moving members span the opening. A movable support beam is laid on the movable support beam, and a belt-shaped horizontal drain member is spread on the movable support beam, and the horizontal drain member is spread from the front to the rear in synchronization with the traveling speed in the traveling state of the ship, and the ship is stopped. In (2), each movable support beam is moved forward and dropped into the water from the horizontal drain material at the rear. Another main structure of the present invention is a horizontal drain material laying work ship for carrying out the above method, wherein a hull having openings of a constant width formed in the longitudinal direction according to claim 2; A plurality of movable support beams that move across the space; and a roll body of a horizontal drain material that is arranged in the front portion of the hull and is wound into a roll is mounted, and the horizontal drain material is mounted on the movable support beams. A drain material supply device for expanding the movable support beams to each other at a constant interval by a tension member, and a drive device for moving forward and backward with the movable support beams at the rearmost portion is arranged, and the rearmost portion. The movable support beam is provided with a holding device for pressing the horizontal drain member.
【０００６】(2) 作用 本発明によれば、船体上の開口を跨いで移動する可動支
持梁は相互に離接し、一定間隔以上には離れない。ま
た、移動には後部の可動支持梁からなされる。そして、
船体上において、水平ドレーン材は可動支持梁上に水平
に展張され、船の停止状態において水平ドレーン材は後
方から水中に落とし込まれ、水底へ敷設されてゆく。ま
た、船の進行と同期して水平ドレーン材の展張作業が実
施され、水中にある水平ドレーン材への攪乱は可及的小
さくされる。後部の可動支持梁上の押え装置は、水平ド
レーン材の展張時に作動し、水平ドレーン材の水中への
落とし込みには開放される。また、水平ドレーン材供給
装置のロール押え部の作動により、可動支持梁上に配さ
れる水平ドレーン材にたるみが生じない。(2) Operation According to the present invention, the movable support beams that move across the opening on the hull are in contact with each other and do not separate more than a certain distance. Further, the movable support beam at the rear part is used for the movement. And
On the hull, the horizontal drain material is spread horizontally on the movable support beam, and when the ship is stopped, the horizontal drain material is dropped into the water from the rear and laid on the bottom of the water. In addition, the horizontal drain material is expanded in synchronization with the progress of the ship, and the disturbance to the horizontal drain material in the water is minimized. The holding device on the movable support beam at the rear portion operates when the horizontal drain material is expanded, and is opened for dropping the horizontal drain material into the water. Further, the operation of the roll pressing portion of the horizontal drain material supply device does not cause slack in the horizontal drain material arranged on the movable support beam.
【０００７】(3) 実施例 本発明の水平ドレーン材の敷設方法及びその敷設作業船
の実施例を図面に基づいて説明する。図１〜図８はその
一実施例の水平ドレーン材の敷設作業船を示す。すなわ
ち、図１及び図２は該敷設作業船の全体構成を示し、図
３〜図８はその部分構成を示す。なお、以下の説明にお
いて、水平ドレーン材の敷設進行方向すなわち敷設作業
船の前進方向を「前方」とし、その反対側を「後方」と
定義する。(3) Embodiment An embodiment of the method for laying a horizontal drain material and the work boat for laying the same according to the present invention will be described with reference to the drawings. 1 to 8 show a work vessel for laying a horizontal drain material according to an embodiment thereof. That is, FIGS. 1 and 2 show the entire construction of the laying work ship, and FIGS. 3 to 8 show the partial construction thereof. In the following description, the laying advancing direction of the horizontal drain material, that is, the advancing direction of the laying work boat is defined as “front” and the opposite side is defined as “rear”.
【０００８】図１及び図２に示されるように、Ｓは水平
ドレーン材の敷設作業船（以下単に「作業船」という）
であり、所定幅の開口２が長手方向に形成された船体部
１と、該船体部１の開口２に跨がって配された複数の可
動支持梁３と、船体部１の前部に配され、前記可動支持
梁３上に展張される水平ドレーン材４を供給する水平ド
レーン材供給装置５と、前記可動支持梁３を駆動する駆
動装置６並びに前記最後部の可動支持梁３に装着される
ドレーン材押え装置７と、を含む。更には、船体部１の
四隅に配される係船装置８を含む。なお、１０は水底地
盤を示す。As shown in FIGS. 1 and 2, S is a work boat for laying horizontal drain material (hereinafter simply referred to as "work boat").
And a plurality of movable support beams 3 arranged across the opening 2 of the hull portion 1, a hull portion 1 having a predetermined width in the longitudinal direction, and a front portion of the hull portion 1. The horizontal drain material supply device 5 for supplying the horizontal drain material 4 which is arranged and extended on the movable support beam 3, the drive device 6 for driving the movable support beam 3 and the movable support beam 3 at the rearmost part. And a drain material pressing device 7 to be performed. Furthermore, the mooring apparatus 8 arrange | positioned at the four corners of the hull part 1 is included. In addition, 10 shows a water bottom ground.
【０００９】以下、この作業船Ｓの各部の細部構造を説
明する。船体部１ （図１、図２参照） 船体部１は、鋼製の四角状の箱体よりなり浮力を有し、
その甲板１ａは平坦面をなす。該船体部１には、長手方
向に沿って一定幅の開口２が船体部１を上下に貫通して
形成される。なお、船体部１は開口２の形成が必須であ
り、該船体部１は四角状等の形状を問わない。The detailed structure of each part of the work boat S will be described below. Hull part 1 (see FIGS. 1 and 2) The hull part 1 is made of a steel rectangular box and has buoyancy.
The deck 1a has a flat surface. An opening 2 having a constant width is formed in the hull portion 1 so as to extend vertically through the hull portion 1 in the longitudinal direction. It is essential that the hull portion 1 be formed with the opening 2, and the hull portion 1 may have any shape such as a square shape.
【００１０】可動支持梁３（図１〜図５参照） 可動支持梁３は、本体が矩形断面の長尺体よりなり、船
体部１の開口２に跨がって配され、両端に２つの車輪１
２が配され、開口２に臨んで甲板１ａに設置されたレー
ル１３に沿って走行する。これにより、可動支持梁３は
開口２に沿って移動自在となる。なお、レール１３に替
えて凹溝とすることもでき、更には、レール１３を省略
することもできる。該可動支持梁３は、複数個（本実施
例では５）配され、各可動支持梁３（前部より３Ａ，３
Ｂ，３Ｃ，３Ｄ，３Ｅ）の相互はチェーン１４をもって
個々には一定間隔以上に離れないように規制される。す
なわち、可動支持梁３の両端面には水平アイプレート１
５が外方に張設され、該水平アイプレート１５の孔にチ
ェーン１４が連結される。なお、１６は鉛直アイプレー
トであって、その孔に後記する駆動装置６の引張り材を
挿通する。後部可動支持梁３Ｅは、他の可動支持梁３に
比べ特別な構造を採り、後記する駆動装置６の係合用の
鉛直アイプレート１６並びにドレーン材押え装置７が付
加される外、水平ドレーン材４の下方への移動を案内す
る案内ローラ１７が付加される。該案内ローラ１７は、
水平ドレーン材４の幅よりも十分に長く、後部可動支持
梁３Ｅの後側面に張設されたリブ１８間に回転自在に枢
支される。なお、該案内ローラ１７は短尺のものとし、
複数に配されてもよい。 Movable Support Beam 3 (See FIGS. 1 to 5) The movable support beam 3 is composed of an elongated body having a rectangular cross section, is arranged over the opening 2 of the hull 1, and has two Wheel 1
2 are arranged and run along the rails 13 installed on the deck 1a facing the opening 2. As a result, the movable support beam 3 becomes movable along the opening 2. The rail 13 may be replaced with a groove, and the rail 13 may be omitted. A plurality (5 in this embodiment) of the movable support beams 3 are arranged, and each movable support beam 3 (from the front portion 3A, 3
(B, 3C, 3D, 3E) are regulated by the chain 14 so as not to be separated from each other by a predetermined distance or more. That is, the horizontal eye plate 1 is provided on both end surfaces of the movable support beam 3.
5 is stretched outward, and the chain 14 is connected to the hole of the horizontal eye plate 15. Reference numeral 16 is a vertical eye plate, through which a pulling member of a drive device 6 to be described later is inserted. The rear movable support beam 3E has a special structure as compared with the other movable support beams 3, and a vertical eye plate 16 for engagement of a drive device 6 and a drain material holding device 7 which will be described later are added thereto, and a horizontal drain material 4 is also provided. A guide roller 17 is added to guide the downward movement of the. The guide roller 17 is
It is sufficiently longer than the width of the horizontal drain member 4, and is rotatably supported between ribs 18 stretched on the rear side surface of the rear movable support beam 3E. The guide roller 17 has a short length,
It may be arranged in plural.
【００１１】水平ドレーン材供給装置５（図１、図２、
図６、図７参照） 水平ドレーン材供給装置５は、ロール巻にされ、展張可
能な帯状の水平ドレーン材４を可動支持梁３上に所定の
張力をもって張設する。水平ドレーン材４は、公知の水
平ドレーン材が使用される。すなわち、芯材をフィルタ
ーで包囲してあるドレーン材が配されており、フィルタ
ー材を介して吸入された水は芯材中を流れ外部へ放出さ
れる。この水平ドレーン材４は、工場において帯状体を
軸部２０回りにロール状に捲回されてロール体４Ａとさ
れる。軸部２０の端部には軸受２１が装着される。水平
ドレーン材供給装置５は、ロール装着台２２とロール押
え部２３とからなる。ロール装着台２２は、水平ドレー
ン材４のロール体４Ａの軸受２１を受け入れる凹部が凹
設される。該凹部に対応して、軸受２１に被さりロール
体４Ａの浮上がりを防止するカバーが装着される。ロー
ル押え部２３は、ロール装着部２２の前方に配され、甲
板１ａ上に固設されたリブ２５、該リブ２５に枢着され
たアーム２６、該２つのアーム２６間に回転自在に支持
されたロール押えローラ２７、及びアーム２６と甲板１
ａとの間に介装されアーム２６を上方に付勢するばね２
８、を含む。ロール押え部２３はロール体４Ａの径に追
従し、ローラ２７をもってロール体４Ａを常時下方より
押圧する。これにより、ロール装着台２２に装着された
ロール体４Ｄからの水平ドレーン材４の緩みを防止す
る。なお、ばね２８に替えて空気シリンダとすることも
できる。 Horizontal drain material supply device 5 (see FIGS. 1 and 2)
(See FIGS. 6 and 7) The horizontal drain material supply device 5 is wound into a roll and stretches a stretchable strip-shaped horizontal drain material 4 on the movable support beam 3 with a predetermined tension. A known horizontal drain material is used as the horizontal drain material 4. That is, a drain material surrounding the core material with a filter is arranged, and the water sucked through the filter material flows through the core material and is discharged to the outside. The horizontal drain member 4 is rolled into a roll body 4A around a shaft 20 around a shaft 20 in a factory. A bearing 21 is attached to the end of the shaft portion 20. The horizontal drain material supply device 5 includes a roll mount 22 and a roll retainer 23. The roll mounting base 22 is provided with a concave portion for receiving the bearing 21 of the roll body 4A of the horizontal drain member 4. Corresponding to the concave portion, the bearing 21 is fitted with a cover for preventing the roll body 4A from floating. The roll pressing portion 23 is arranged in front of the roll mounting portion 22, and is rotatably supported between the rib 25 fixed on the deck 1a, the arm 26 pivotally attached to the rib 25, and the two arms 26. Roll pressing roller 27, arm 26 and deck 1
a spring 2 which is interposed between the spring 2 and a to bias the arm 26 upward.
8 inclusive. The roll retainer 23 follows the diameter of the roll body 4A, and always presses the roll body 4A from below with the roller 27. This prevents the horizontal drain member 4 from loosening from the roll body 4D mounted on the roll mounting base 22. The spring 28 may be replaced by an air cylinder.
【００１２】駆動装置６（図１、図２、図８参照） 駆動装置６は、開口２を跨いで配された可動支持梁３の
各々を駆動するものであって、開口２の後部寄りに配さ
れるウインチ機構３０と、開口２の前部寄りの両側に配
されるシーブ３１と、最後部の可動支持梁３に連結され
る引張り材３２と、からなる。もっと詳しくは、ウイン
チ機構３０は、開口２の後部に駆動シャフト３３が横断
状に配され、その中間部に駆動機構部３４ａと操作部３
４ｂとからなる駆動部３４が配され、操作部３４ｂの正
逆転操作により駆動機構部３４ａを介して駆動シャフト
３３は正逆の回転動をなす。駆動シャフト３３には適宜
軸受部３５が配され、かつ、その両端部には巻取りドラ
ム３６が配される。シーブ３１は開口２の前部寄りの両
側に水平状に配される。引張り材３２は、前進系のもの
３２Ａと後退系のもの３２Ｂとの２系統からなり、前進
系３２Ａは一端を後部可動支持梁３Ｅの鉛直アイプレー
ト１６に結合され、各可動支持梁３のアイプレート１６
の遊挿孔１６ａに挿通され、シーブ３１に巻き懸けら
れ、他端を巻取りドラム３６に捲回される。後退系３２
Ｂは一端を同じく後部可動支持梁３Ｅのアイプレート１
６に結合され、他端を巻取りドラム３６に捲回される。
なお、引張り材３２は、通常には鋼製のワイヤーロープ
が使用されるが、麻製であってもよく、その他チェーン
等の適宜のものが使用される。 Drive Unit 6 (See FIGS. 1, 2, and 8) The drive unit 6 drives each of the movable support beams 3 arranged across the opening 2, and is located near the rear portion of the opening 2. The winch mechanism 30 is provided, the sheaves 31 are provided on both sides of the opening 2 near the front portion, and the tension member 32 is connected to the movable support beam 3 at the rearmost portion. More specifically, in the winch mechanism 30, a drive shaft 33 is transversely arranged in the rear portion of the opening 2, and a drive mechanism portion 34a and an operating portion 3 are provided in the middle portion thereof.
4b is arranged, and the drive shaft 33 is rotated forward and backward via the drive mechanism 34a by the forward and reverse operation of the operating portion 34b. A bearing portion 35 is appropriately arranged on the drive shaft 33, and winding drums 36 are arranged at both ends thereof. The sheaves 31 are horizontally arranged on both sides of the opening 2 toward the front. The tension member 32 is composed of two systems, a forward system 32A and a backward system 32B. One end of the forward system 32A is coupled to the vertical eye plate 16 of the rear movable support beam 3E, and the eye of each movable support beam 3 is connected. Plate 16
Is inserted into the loose insertion hole 16a, is wound around the sheave 31, and the other end is wound around the winding drum 36. Retreat 32
B is an eye plate 1 of the rear movable support beam 3E, also having one end.
6 and the other end is wound around the winding drum 36.
The tension member 32 is usually made of steel wire rope, but may be made of hemp, or other appropriate material such as a chain.
【００１３】ドレーン材押え装置７（図１、図２、図
４、図５参照） ドレーン材押え装置７は、後部可動支持梁３Ｅ上に配さ
れ、展張された水平ドレーン材４を押圧自在とする。図
４・図５はその構造並びに配置を示し、後部可動支持梁
３Ｅ上に立設された門形のフレーム４０の水平梁の下面
に垂設されたジャッキ４１と、該ジャッキ４１のロッド
４１ａの先端に固定されたローラ部４２とからなる。な
お、該ドレーン材押え装置７は他の可動支持梁３上に配
することを妨げない。しかして、ジャッキ４１の伸長操
作をもってローラ部４２を支持梁３Ｅ上に載置された水
平ドレーン材４を押圧する。 Drain material pressing device 7 (see FIGS. 1, 2, 4 and 5) The drain material pressing device 7 is arranged on the rear movable support beam 3E and can press the stretched horizontal drain material 4 freely. To do. FIGS. 4 and 5 show the structure and arrangement of the jack 41, which is provided vertically on the lower surface of the horizontal beam of the gate-shaped frame 40 that is erected on the rear movable support beam 3E, and the rod 41a of the jack 41. And a roller portion 42 fixed to the tip. The drain material holding device 7 does not prevent the drain material holding device 7 from being placed on another movable support beam 3. Then, the roller portion 42 is pressed by the extension operation of the jack 41 against the horizontal drain member 4 placed on the support beam 3E.
【００１４】係船装置８（図１、図２参照） 係船装置８は、係船索４５を巻き取る係船ウインチ４６
並びにリーダ４７からなり、甲板１ａの四隅に設置され
る。係船索４５の先端には水底１０へ係留するアンカー
４８が配される。なお、該係船装置８は前部のもの８ａ
と後部のもの８ｂとに分かれる。 Mooring device 8 (see FIGS. 1 and 2) The mooring device 8 is a mooring winch 46 for winding the mooring rope 45.
In addition, it is composed of the reader 47 and is installed at the four corners of the deck 1a. An anchor 48 moored to the water bottom 10 is arranged at the tip of the mooring line 45. The mooring device 8 is a front one 8a.
And the rear part 8b.
【００１５】以上のように構成された本実施例の作業船
Ｓにより水平ドレーン材４の敷設が次のようにして実施
される。以下、工程順に述べる。 (1) 予め垂直ドレーン杭が打設された軟弱地盤改良対象
域の所定の水域にまで本作業船Ｓを曳航する。なお、本
作業船Ｓが自航式であるときには、自航により移動され
ることは勿論である。The horizontal drain member 4 is laid in the following manner by the work boat S of the present embodiment constructed as described above. The steps will be described below. (1) The work boat S is towed to a predetermined water area in the soft ground improvement area where vertical drain piles have been placed beforehand. When the work boat S is of the self-propelled type, it goes without saying that it is moved by self-propelled.
【００１６】(2) 作業船Ｓが所定水域に到達すれば、該
作業船Ｓを係船装置８の係船索４５により係留する。こ
のとき、後部の係船索４５ｂを可及的後部ウインチ４６
ｂに巻き込み、アンカー４８ｂまでを短くし、また、前
部の係船索４５ａは可及的前部ウインチ４６ａより引き
出され、アンカー４８ａまでを長い距離に保つ。(2) When the work boat S reaches the predetermined water area, the work boat S is moored by the mooring rope 45 of the mooring device 8. At this time, the mooring line 45b at the rear part is connected to the rear winch 46 as much as possible.
It is wound around b and shortens to the anchor 48b, and the mooring line 45a at the front part is pulled out from the front winch 46a as much as possible to keep the anchor 48a at a long distance.
【００１７】(3) この状態で、駆動装置６を作動して、
可動支持梁３の全部（３Ａ，３Ｂ，３Ｃ，３Ｄ，３Ｅ）
を開口２の前部に移動（前進）させ水平ドレーン材供給
装置５から巻き出された水平ドレーン材４を可動支持梁
３上に展張させ、後部支持梁３Ｅにおいてドレーン材押
し装置７を作動して、そのローラ部４２をもってドレー
ン材４を押える。このとき、水平ドレーン材４の最端部
は後部可動支持梁３Ｅよりも余裕長をもって引き出すよ
うにしておく。(3) In this state, the drive device 6 is operated to
All movable support beams 3 (3A, 3B, 3C, 3D, 3E)
Is moved (advanced) to the front part of the opening 2, the horizontal drain material 4 unwound from the horizontal drain material supply device 5 is spread on the movable support beam 3, and the drain material pushing device 7 is operated on the rear support beam 3E. Then, the drain member 4 is pressed by the roller portion 42. At this time, the outermost end of the horizontal drain member 4 is pulled out with a margin longer than that of the rear movable support beam 3E.
【００１８】(4) しかる後、駆動装置６を作動して可動
支持梁３を順次後方へ移動（後退）させる。すなわち、
駆動装置６を展張方向（順方向）に駆動させ、後部可動
支持梁３Ｅから順次後方へ移動させる。このとき、後部
可動支持梁３Ｅのドレーン材押え装置７はそのローラ部
４２がドレーン材４を押圧しているので、ドレーン材４
は順次ロール体４Ａから巻き出されてゆく。可動支持梁
３相互はチェーン１４により連結されたものとなってい
るので、チェーン１４の長さ分だけ順次後方へ移動して
ゆく。また、水平ドレーン材供給装置５におけるロール
押え部２１により、ロール体４Ａは適宜制動のかかった
ものとなり、水平ドレーン材４はたるみがなく展張す
る。可動支持梁３上に展張された水平ドレーン材４上に
適宜砂袋（図示せず）等の重りが付加され、また、後部
可動支持梁３Ｅから延設された水平ドレーン材４にも同
様に適宜砂袋等の重りが付加される。(4) Then, the drive device 6 is operated to move (retract) the movable support beam 3 rearward in sequence. That is,
The drive device 6 is driven in the extension direction (forward direction) and sequentially moved rearward from the rear movable support beam 3E. At this time, since the roller portion 42 of the drain material pressing device 7 of the rear movable support beam 3E is pressing the drain material 4, the drain material 4
Are successively unwound from the roll body 4A. Since the movable support beams 3 are connected to each other by the chain 14, the movable support beams 3 are sequentially moved backward by the length of the chain 14. Further, the roll body 4A is appropriately braked by the roll pressing portion 21 of the horizontal drain material supply device 5, and the horizontal drain material 4 is stretched without slack. A weight such as a sand bag (not shown) is appropriately added on the horizontal drain member 4 stretched on the movable support beam 3, and the horizontal drain member 4 extended from the rear movable support beam 3E is similarly processed. A weight such as a sand bag is appropriately added.
【００１９】(5) 次いで、後部可動支持梁３Ｅ上のドレ
ーン材押え装置７を開放し、駆動装置６を逆回転させ、
可動支持梁３を前方へ移動させる。これにより、水平ド
レーン材４は開口２を介して後部から水中に落ち込んで
ゆき、水底１０には水平ドレーン材４が連続的に敷設さ
れてゆく。このとき、後部可動支持梁３Ｅの案内ローラ
１７は水平ドレーン材１４の下方への落とし込みを円滑
になす。(5) Next, the drain material pressing device 7 on the rear movable support beam 3E is opened, and the drive device 6 is rotated in the reverse direction,
The movable support beam 3 is moved forward. As a result, the horizontal drain material 4 falls into the water from the rear through the opening 2, and the horizontal drain material 4 is continuously laid on the water bottom 10. At this time, the guide roller 17 of the rear movable support beam 3E smoothly drops the horizontal drain member 14 downward.
【００２０】(6) 次に、係船ウインチ４６を駆動させ、
作業船Ｓを進行させる。すなわち、前部のウインチ４６
ａを巻き取り、後部のウインチ４６ｂを巻き戻すことに
より、作業船Ｓはぶれることなく所定の航跡をもって進
行する。これと同時に、後部可動支持梁３Ｅのドレーン
材押え装置７を作動した後、作業船Ｓの進行速度に同期
させて駆動装置６を作動し、(4) の工程の要領で可動支
持梁３を順次後方へ移動させる。(6) Next, drive the mooring winch 46,
Work boat S is advanced. That is, the front winch 46
By winding a and rewinding the rear winch 46b, the work boat S advances with a predetermined track without shaking. At the same time, after operating the drain material pressing device 7 of the rear movable support beam 3E, the drive device 6 is operated in synchronization with the traveling speed of the work boat S, and the movable support beam 3 is moved in the same manner as in the step (4). Move to the rear one by one.
【００２１】(7) 上記(5) 及び(6) の工程を繰り返し、
一列の水平ドレーン材４の水底１０への敷設をなす。(7) The above steps (5) and (6) are repeated,
A row of horizontal drain members 4 is laid on the water bottom 10.
【００２２】(8) 作業船Ｓを元へ戻し、前後部の係船索
４０のアンカー４３をそれぞれ横方向へずらせて水底へ
打ち込む。作業船Ｓはこれにより横方向へ移動する。(8) The work boat S is returned to its original position, and the anchors 43 of the mooring ropes 40 at the front and rear are respectively displaced laterally and driven into the water bottom. This causes the work boat S to move laterally.
【００２３】(9) 以後、上記(5) 〜(7) の工程を繰り返
し、所定面積の改良地盤域を覆うように水平ドレーン材
を敷設してゆく。この後、水平ドレーン材４が全域に敷
設されると該水平ドレーン材４上に水面上に至るまで盛
土の盛立てがなされる。(9) After that, the steps (5) to (7) are repeated to lay a horizontal drain material so as to cover the improved ground area having a predetermined area. After that, when the horizontal drain material 4 is laid all over the area, the embankment is laid up on the horizontal drain material 4 up to the surface of the water.
【００２４】このように、本実施例によれば、停船状態
において水平ドレーン材４が水中に落とし込まれるの
で、作業船の動揺の影響を受けず、従って、落とし込み
作業中の水平ドレーン材４のねじれ・破断等がなくな
り、水底への着底が確実となり、正確な水平ドレーン材
４の水底への敷設が行われる。また、船の進行状態にお
いて、作業船上での水平ドレーン材４の展張操作がなさ
れ、水平ドレーン材４の展張と水平への落とし込みとが
連続的になされ、効率的な水平ドレーン材４の敷設作業
が行われる。As described above, according to the present embodiment, since the horizontal drain member 4 is dropped into the water when the ship is stopped, the horizontal drain member 4 is not affected by the sway of the work boat. Twisting, breakage, etc. are eliminated, the bottom of the bottom of the water is surely fixed, and the horizontal drain member 4 is accurately laid on the bottom of the water. Further, in the traveling state of the ship, the horizontal drain material 4 is spread on the work boat, and the horizontal drain material 4 is continuously expanded and dropped horizontally, so that the horizontal drain material 4 can be efficiently laid. Is done.
【００２５】更に、水平ドレーン材供給装置５に付加し
たロール押さ部２３の働きにより、ロール体４Ａから巻
き出される水平ドレーン材４がたるみなく展張される。
本発明は上記実施例に限定されるものではなく、本発明
の基本的技術思想の範囲内で種々設計変更が可能であ
る。すなわち、以下の態様は本発明の技術範囲内に包含
されるものである。 可動支持梁３の数に限定されない。 駆動装置６は実施例ではウインチ機構を採ったが、後
部可動支持梁３Ｅに備えられ、あるいは、各可動支持梁
３に独立して配されてもよい。 ドレーン材押え装置７は後部可動支持梁３Ｅに限ら
ず、他の可動支持梁３に設けてもよい。Further, by the action of the roll pressing portion 23 added to the horizontal drain material supplying device 5, the horizontal drain material 4 unwound from the roll body 4A is stretched without slack.
The present invention is not limited to the above embodiments, and various design changes can be made within the scope of the basic technical idea of the present invention. That is, the following aspects are included in the technical scope of the present invention. The number of the movable support beams 3 is not limited. Although the drive device 6 adopts the winch mechanism in the embodiment, it may be provided on the rear movable support beam 3E or may be independently arranged on each movable support beam 3. The drain material pressing device 7 is not limited to the rear movable support beam 3E and may be provided on another movable support beam 3.
【００２６】ハ．発明の効果 本発明によれば、停船状態において水平ドレーン材が水
中に落とし込まれるので、作業船の動揺の影響を受け
ず、従って、落とし込み作業中の水平ドレーン材のねじ
れ・破断等がなくなり、水底への着底が確実となり、正
確な水平ドレーン材の水底への敷設が行われる。また、
船の進行状態において、作業船上での水平ドレーン材の
展張操作がなされ、水平ドレーン材の展張と水平への落
とし込みとが連続的になされ、効率的な水平ドレーン材
の敷設作業が行われる。C. EFFECTS OF THE INVENTION According to the present invention, since the horizontal drain material is dropped into the water in the stopped state, it is not affected by the sway of the work boat, and accordingly, the twisting / breakage of the horizontal drain material during the drop operation is eliminated, The bottom of the water is surely landed, and the accurate horizontal drain material is laid on the bottom of the water. Also,
In the traveling state of the ship, the horizontal drain material is expanded on the work ship, the horizontal drain material is expanded and dropped horizontally, and the horizontal drain material is efficiently laid.
【図１】本発明の水平ドレーン材の敷設方法を実施する
敷設作業船の全体を示す平面図。FIG. 1 is a plan view showing an entire laying work ship for carrying out the method for laying a horizontal drain material according to the present invention.
【図２】図１の側面図。FIG. 2 is a side view of FIG.
【図３】可動支持梁部分の拡大平面図。FIG. 3 is an enlarged plan view of a movable support beam portion.
【図４】図３の側面図。FIG. 4 is a side view of FIG.
【図５】後部可動支持梁の正面図。FIG. 5 is a front view of a rear movable support beam.
【図６】水平ドレーン材の平面図。FIG. 6 is a plan view of a horizontal drain member.
【図７】図６の側面図。FIG. 7 is a side view of FIG. 6;
【図８】駆動装置の構成図。FIG. 8 is a configuration diagram of a drive device.
Ｓ…水平ドレーン材敷設作業船、１…船体部、２…開
口、３…可動支持梁、３Ｅ…後部可動支持梁、４…水平
ドレーン材、４Ａ…ロール体、５…水平ドレーン材供給
装置、６…駆動装置、７…ドレーン材押え装置、１４…
引張り材、２３…ロール押え部S ... Horizontal drain material laying work boat, 1 ... Hull part, 2 ... Opening, 3 ... Movable support beam, 3E ... Rear movable support beam, 4 ... Horizontal drain material, 4A ... Roll body, 5 ... Horizontal drain material supply device, 6 ... Drive device, 7 ... Drain material pressing device, 14 ...
Tensile material, 23 ... Roll retainer
───────────────────────────────────────────────────── フロントページの続き (72)発明者 菊井 敬三 東京都中央区築地５丁目６番４号 株式会 社メックス内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Keizo Kikui 5-6-4 Tsukiji, Chuo-ku, Tokyo Inside Mex Co., Ltd.
Claims (3)
れ、この開口に跨がって移動する複数の可動支持梁が架
設され、該可動支持梁上に帯状をなす水平ドレーン材を
展張し、船の進行状態において進行速度に同期して水平
ドレーン材を前方より後方へ展張させ、船の停止状態に
おいて各可動支持梁を前方へと移動させ、後方の水平ド
レーン材から水中に落とし込んでゆく、ことを特徴とす
る水平ドレーン材の敷設方法。1. A hull is formed with an opening having a constant width in the longitudinal direction, and a plurality of movable support beams moving across the opening are installed, and a horizontal drain member in the form of a belt is formed on the movable support beam. When the ship is extended, the horizontal drain material is expanded from the front to the rear in synchronization with the traveling speed in the traveling state of the ship, and each movable support beam is moved to the front when the ship is stopped and dropped into the water from the horizontal drain material at the rear. A method of laying horizontal drain material, which is characterized in that
と；前記開口に跨がって移動する複数の可動支持梁と；
前記船体の前部に配され、ロール状に捲回された水平ド
レーン材のロール体を装着し、該水平ドレーン材を前記
可動支持梁上に展張する水平ドレーン材供給装置と；を
備え、 前記可動支持梁の相互は引張り材により一定間隔に規制
されるとともに、 最後部の可動支持梁をもって前後進する駆動装置が配さ
れ、 かつ、最後部の可動支持梁には水平ドレーン材を押圧自
在とする押え装置が配されてなる、ことを特徴とする水
平ドレーン材の敷設作業船。2. A hull in which an opening having a constant width is formed in the longitudinal direction; a plurality of movable support beams that move across the opening;
A horizontal drain material supply device which is arranged at a front portion of the hull and which is provided with a roll body of a horizontal drain material wound in a roll shape and which extends the horizontal drain material on the movable support beam; The movable support beams are mutually regulated by a tension member at regular intervals, a drive device that moves forward and backward with the last movable support beam is arranged, and a horizontal drain member can be pressed on the last movable support beam. A work vessel for laying horizontal drain material, characterized in that a pressing device is installed.
性付勢力をもって下方から押圧するロール押え部を有し
てなる請求項２に記載の水平ドレーン材の敷設作業船。3. The horizontal drain material laying work ship according to claim 2, wherein the horizontal drain material supply device has a roll pressing portion for pressing the roll body from below with an elastic biasing force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33424494A JP3605163B2 (en) | 1994-12-16 | 1994-12-16 | Method of laying horizontal drain material and laying work boat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33424494A JP3605163B2 (en) | 1994-12-16 | 1994-12-16 | Method of laying horizontal drain material and laying work boat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08169392A true JPH08169392A (en) | 1996-07-02 |
| JP3605163B2 JP3605163B2 (en) | 2004-12-22 |
Family
ID=18275163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33424494A Expired - Fee Related JP3605163B2 (en) | 1994-12-16 | 1994-12-16 | Method of laying horizontal drain material and laying work boat |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3605163B2 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03147920A (en) * | 1989-11-06 | 1991-06-24 | Penta Ocean Constr Co Ltd | Horizontal burying method of drain material and burying device thereof |
| JPH03161611A (en) * | 1989-11-20 | 1991-07-11 | Tokyu Constr Co Ltd | Method and device for continuously laying drainage material on bottom of water |
| JPH04203012A (en) * | 1990-11-30 | 1992-07-23 | Penta Ocean Constr Co Ltd | Operation of burying ship for horizontal drain material |
| JPH04203011A (en) * | 1990-11-30 | 1992-07-23 | Penta Ocean Constr Co Ltd | Horizontal burying apparatus for drain material |
| JPH05171631A (en) * | 1991-10-31 | 1993-07-09 | Tokyu Constr Co Ltd | Construction method of horizontal drain material and construction operating ship thereof |
| JPH0813466A (en) * | 1994-06-29 | 1996-01-16 | Daito Kogyo Kk | Installation device for horizontal drain material in water bottom and installation method |
-
1994
- 1994-12-16 JP JP33424494A patent/JP3605163B2/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03147920A (en) * | 1989-11-06 | 1991-06-24 | Penta Ocean Constr Co Ltd | Horizontal burying method of drain material and burying device thereof |
| JPH03161611A (en) * | 1989-11-20 | 1991-07-11 | Tokyu Constr Co Ltd | Method and device for continuously laying drainage material on bottom of water |
| JPH04203012A (en) * | 1990-11-30 | 1992-07-23 | Penta Ocean Constr Co Ltd | Operation of burying ship for horizontal drain material |
| JPH04203011A (en) * | 1990-11-30 | 1992-07-23 | Penta Ocean Constr Co Ltd | Horizontal burying apparatus for drain material |
| JPH05171631A (en) * | 1991-10-31 | 1993-07-09 | Tokyu Constr Co Ltd | Construction method of horizontal drain material and construction operating ship thereof |
| JPH0813466A (en) * | 1994-06-29 | 1996-01-16 | Daito Kogyo Kk | Installation device for horizontal drain material in water bottom and installation method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3605163B2 (en) | 2004-12-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4020779A (en) | Chain/wire rope connector assembly for anchor | |
| CN104125914A (en) | Fairlead for guiding an anchoring chain and intended to be provided to anchoring equipment on the floor of a floating platform | |
| CN103459299A (en) | Tensioning device | |
| JP2562235B2 (en) | A method of mooring a floating platform to a predetermined mooring place, and a method of lifting and recovering any part of the mooring line. | |
| US4056944A (en) | Process and device for laying submarine pipelines | |
| JPH08169392A (en) | Method for laying horizontal drain material and work barge for laying the same | |
| JP2849250B2 (en) | Horizontal drain material laying method and laying work boat | |
| KR101019149B1 (en) | Air-spinning system for the erection of suspension cable | |
| NL193795C (en) | Device for positioning a floating body in a waterway. | |
| JPH01131734A (en) | Spud for dredger | |
| JPH09279564A (en) | Laying method of horizontal drain material and laying work vessel therefor | |
| KR102552456B1 (en) | Chain handling system for pulling mooring line | |
| JP4303677B2 (en) | Aerial flying acrobatics equipment | |
| JP2581964B2 (en) | Grab ship moving equipment | |
| JP3228681B2 (en) | Racing course configuration device | |
| CN114212193B (en) | Underwater robot passive sliding rail arrangement and recovery system and method | |
| JPH0633602B2 (en) | Underwater slope leveling method | |
| KR20230021821A (en) | Water Flow Electric Generator | |
| JP2021156012A (en) | Horizontal drain material laying method | |
| JP6983640B2 (en) | Floating body, floating body mooring device and floating body mooring method | |
| JPH10230085A (en) | Racing course constitution system | |
| US4121780A (en) | Pre-stressing of concrete pressure vessels | |
| SU1121448A1 (en) | Machine for braiding a flexible cap of metal strips | |
| JPH027955Y2 (en) | ||
| CN117477428A (en) | Method for dismantling large-span ground lead |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A821 Effective date: 20040213 |
|
| RD04 | Notification of resignation of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7424 Effective date: 20040213 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20040219 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20040302 |
|
| RD02 | Notification of acceptance of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7422 Effective date: 20040308 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20040323 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A821 Effective date: 20040308 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20040928 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20041001 |
|
| R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081008 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091008 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101008 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20111008 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20111008 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121008 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121008 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20131008 Year of fee payment: 9 |
|
| LAPS | Cancellation because of no payment of annual fees |