JPH076197Y2 - Underwater input conduit - Google Patents
Underwater input conduitInfo
- Publication number
- JPH076197Y2 JPH076197Y2 JP1988125757U JP12575788U JPH076197Y2 JP H076197 Y2 JPH076197 Y2 JP H076197Y2 JP 1988125757 U JP1988125757 U JP 1988125757U JP 12575788 U JP12575788 U JP 12575788U JP H076197 Y2 JPH076197 Y2 JP H076197Y2
- Authority
- JP
- Japan
- Prior art keywords
- conduit
- outer shell
- conduit body
- shell tube
- underwater
- 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 - Lifetime
Links
Landscapes
- Underground Or Underwater Handling Of Building Materials (AREA)
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は、砂、砂利及び事前混合固化材等を水底に投入
して盛土を構築する際に用いられる水中投入物用導管に
関するものである。[Detailed Description of the Invention] (Industrial field of application) The present invention relates to a conduit for an underwater charge used when a sand, a gravel, a pre-mixed solidifying material, etc. are charged to the bottom of the water to construct an embankment. .
（従来の技術） 従来水底に砂、砂利及び事前混合固化材等を投下して水
中構築物の基礎などを構築するには水中投入物用導管と
して単管が用いられていた。(Prior Art) Conventionally, a single pipe has been used as a conduit for underwater inputs in order to construct a foundation for an underwater structure by dropping sand, gravel, premixed solidifying material, etc. on the bottom of the water.
（考案が解決しようとする課題） しかしながら前記単管は、管内における投入材の落下が
スムーズにいかず、特に平均粒径が微細でしかもかなり
広い粒径分布を有する砂は、投下に際しては粒径毎の沈
降速度が一様ではなく堆積された盛土の均質性が損なわ
れたり、管中につまりが生じたりして効果的な盛土をす
ることが出来ない等の問題があった。(Problems to be solved by the invention) However, in the above-mentioned single pipe, the dropping of the input material in the pipe does not go smoothly, and especially the sand having a fine average particle size and a fairly wide particle size distribution has a particle size at the time of dropping. There was a problem that the sedimentation speed was not uniform for each case, the homogeneity of the deposited embankment was impaired, and the pipe was clogged, so that effective embankment could not be performed.
本考案はこれら従来の投入物用導管の諸問題に鑑みてな
されたものであり、その目的は投入物用導管内を投入材
がスムーズかつ短期間に落下させ、大きな落下エネルギ
ーをもって着底できるようにすることである。The present invention has been made in view of these problems of the conventional feed pipe, and its purpose is to allow the feed material to drop smoothly and in a short time in the feed pipe so that it can reach the bottom with a large drop energy. Is to
（課題を解決するための手段） 上記課題を解決するための投入物用導管材は、投入材を
投入する水中投入物用導管であり、外殻管をその上端が
水面から突出した状態で作業船より吊り下げ、この外殻
管の内側に導管本体をその上端が水面から水没した状態
で取り付け、かつ外殻管内面と導管本体との間に少なく
とも導管本体の内径面と同等の間隙部を設け、前記外殻
管を導管本体に対して摺動自在としたことを特徴とする
構成とすることである。(Means for Solving the Problem) An input material conduit material for solving the above problems is an underwater material conduit material for supplying an input material, and the outer shell pipe is operated with its upper end protruding from the water surface. Suspend from the ship, attach the conduit body to the inside of this outer shell pipe with its upper end submerged from the water surface, and between the inner surface of the outer shell pipe and the conduit body at least a gap equal to the inner diameter surface of the conduit body. The outer shell tube is provided so as to be slidable with respect to the conduit body.
（作用） 導管本体の上端を水中に水没させるとともに、外殻管の
上端を水面上に突出させて水中投入物用導管を水中に吊
下する。(Operation) The upper end of the conduit body is submerged in water, and the upper end of the outer shell tube is projected above the water surface to suspend the conduit for underwater charge in water.
そして、外殻管から投入材を導管本体に連続的に投入す
ると、その投入量に応じて外殻管内面近傍の水面と導管
本体内の中心部近傍の水面との間に水位差が生じ、その
投入量に応じた水が外殻管と導管本体との間隙部から導
管本体内に投入量の変動に追従してスムーズに流入され
て下降流を生じさせると同時に、導管本体外には上昇流
を生じさせることによりこれらが循環流となる。Then, when the input material is continuously charged into the conduit body from the outer shell tube, a water level difference occurs between the water surface near the inner surface of the outer shell tube and the water surface near the central portion in the conduit body, depending on the input amount, Water corresponding to the input amount smoothly flows into the conduit body from the gap between the outer shell tube and the conduit body, following the fluctuation of the input amount to generate a downward flow, and at the same time rises outside the conduit body. By creating a flow, these become circulating flows.
よって、投入物用導管内に一定の流れをつくりかつこれ
を維持することにより投入材をスムーズかつ短期間に落
下させ、大きな落下エネルギーをもって着底させること
ができる。Therefore, by creating and maintaining a constant flow in the input conduit, the input material can be dropped smoothly and in a short period of time, and the bottom can be settled with a large drop energy.
また外殻管を導管本体の下端側に摺動させることによ
り、導管本体の下端からの上昇流が取り込みやすくな
る。Further, by sliding the outer shell tube to the lower end side of the conduit body, it is easy to take the upward flow from the lower end of the conduit body.
（実施例） 以下図面に基づき本考案の一実施例を説明する。Embodiment An embodiment of the present invention will be described below with reference to the drawings.
水中投入物用導管Ａは、第１図に示すように適宜長さの
円筒状の導管本体１と、該導管本体１の上端部に取り付
けられた外殻管２とからなっている。As shown in FIG. 1, the underwater charging conduit A comprises a cylindrical conduit body 1 having an appropriate length, and an outer shell tube 2 attached to the upper end of the conduit body 1.
外殻管２は前記導管本体１よりも大径であり、連結具４
により固定して取り付けられることにより導管本体１と
の間に間隙部３を形成する。The outer shell tube 2 has a diameter larger than that of the conduit body 1, and the connector 4
The gap portion 3 is formed between the conduit body 1 and the conduit body 1 by being fixedly attached.
また外殻管２は下端が導管本体１の上端部が一定の長さ
だけ覆われるように取り付ける。The outer shell tube 2 is attached so that the lower end covers the upper end of the conduit body 1 by a certain length.
そしてその覆われる割合は、外殻管２を上下に摺動させ
ることにより任意に変えることができる。また外殻管２
の上端外周部には船上からのワイヤーやチェーン等を係
止する係止具５が設けられている。The ratio of the covering can be arbitrarily changed by sliding the outer shell tube 2 up and down. Outer shell tube 2
A locking tool 5 for locking a wire, a chain or the like from the ship is provided on the outer peripheral portion of the upper end of the.
前記連結具４は図中においては４ケ所に設けられている
が４ケ所以上又は４ケ所以下設けることも任意である。The connecting tool 4 is provided at four places in the drawing, but it is also possible to provide at least four places and no more than four places.
以下本考案の水中投入物用導管Ａの使用方法について説
明する。Hereinafter, a method of using the conduit A for underwater charge of the present invention will be described.
水中投入物用導管Ａは、海上作業船又は、水上作業用台
船等などからチェーンもしくはワイヤで水中に吊下して
使用される。The underwater input conduit A is used by being suspended in water by a chain or wire from a marine work boat, a water work pontoon or the like.
この吊下は、導管本体１の上端が水面Ｗよりわずかに下
方に水没させて下端を水底近傍に位置し、かつ外殻管２
の上端がわずかに水面Ｗ上に突出させるように吊下させ
る。In this suspension, the upper end of the conduit body 1 is submerged slightly below the water surface W, the lower end is located near the water bottom, and the outer shell tube 2
It is hung so that the upper end of is slightly projected above the water surface W.
そしてこのように作業船に取り付けられた外殻管２から
水中投入物用導管Ａに砂、砂利及び事前混合固化材等の
投入材ｍが導管本体１に投入されると、外殻管２内面近
傍の水面Ｗと導管本体１内の中心部近傍の水面W1との間
に水位差が生じ、その投入量に応じた水が外殻管２と導
管本体１との間隙部から導管本体内に投入量の変動に追
従してスムーズに流入されて下降流を生じさせると同時
に、導管本体外には上昇流を生じさせることによりこれ
らが循環流となるので、投入物用導管Ａ内に一定の滑ら
かに追従する流れをつくりかつこれを維持することによ
り投入材ｍをスムーズかつ短期間に落下させ、大きな落
下エネルギーをもって着底させることができる。Then, when the input material m such as sand, gravel and premixed solidifying material is input to the conduit body 1 from the outer shell tube 2 attached to the work boat to the underwater input material conduit A, the inner surface of the outer shell tube 2 is A water level difference is generated between the water surface W in the vicinity and the water surface W 1 in the vicinity of the center of the conduit body 1, and water corresponding to the input amount is introduced into the conduit body from the gap between the outer shell tube 2 and the conduit body 1. A smooth flow is made to follow the fluctuation of the input amount to generate a downward flow, and at the same time, an upward flow is generated outside the main body of the conduit, so that these become a circulation flow, so that they are constant in the input conduit A. By making and maintaining the flow that smoothly follows the above, the input material m can be dropped smoothly and in a short period of time, and the bottom can be settled with a large drop energy.
この水中投入用導管Ａは石、砂、砂利及び事前混合固化
材等のいずれの投入材ｍでも投入可能であるが、特に平
均粒径が小さく水底への沈降が遅く、かつかなり広い粒
径分布を有する砂等は均質な盛り土を効果的に構築する
ことが可能である。This underwater feeding conduit A can be fed with any of the feeding materials m such as stone, sand, gravel, and premixed solidifying material, but especially the average particle diameter is small and the sedimentation at the bottom of the water is slow, and the particle diameter distribution is quite wide. It is possible to effectively construct a homogeneous embankment with sand or the like.
（考案の効果） 外殻管から投入材を導管本体に連続的に投入すると、
その投入量に応じて外殻管内面近傍の水面と導管本体内
の中心部近傍の水面との間に水位差が生じ、その投入量
に応じた水が外殻管と導管本体との間隙部から導管本体
内にスムーズに流入されて下降流を生じさせると同時
に、導管本体外には上昇流を生じさせることによりこれ
らが循環流となるので、投入物用導管内に一定の滑らか
に追従する流れをつくりかつこれを維持することにより
投入材をスムーズかつ短期間に落下させ、大きな落下エ
ネルギーをもって着底させることができる。(Effect of the invention) When the charging material is continuously charged into the conduit body from the outer shell,
A water level difference occurs between the water surface near the inner surface of the outer shell tube and the water surface near the center of the conduit body, depending on the input amount, and the amount of water corresponding to the input amount creates a gap between the outer shell tube and the conduit body. Flow smoothly into the main body of the pipe to generate a downward flow, and at the same time generate an upward flow outside the main body of the pipe, these become a circulation flow, so that they follow the input pipe in a certain smooth manner. By creating and maintaining a flow, the input material can be dropped smoothly and in a short period of time, and can reach the bottom with a large drop energy.
外殻管を設けることにより波浪や潮流の影響を排除し
て水中投入物用導管内の水位を一定に保つことができ
て、水面付近で発生する濁りや泡の拡散を防ぐことがで
きる。By providing the outer shell pipe, the influence of waves and tidal currents can be eliminated, and the water level in the underwater input conduit can be kept constant, and the turbidity and bubbles generated near the water surface can be prevented.
外殻管を導管本体の下端側に摺動させることにより、
導管本体の下端からの上昇流が取り込みやすくなる。By sliding the outer shell tube to the lower end side of the conduit body,
Upflow from the lower end of the conduit body is easily taken in.
図は本考案の一実施例を示しており、第１図は水中投入
物用導管の縦断面図、第２図は第１図のII〜II線断面図
である。 Ａ…水中投入物用導管、１…導管本体 ２…外殻管FIG. 1 shows an embodiment of the present invention. FIG. 1 is a vertical sectional view of a conduit for underwater charge, and FIG. 2 is a sectional view taken along line II-II of FIG. A ... Conduit for underwater input, 1 ... Conduit body 2 ... Outer shell tube
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 実開 昭62−133738（ＪＰ，Ｕ) 実開 昭58−153242（ＪＰ，Ｕ) 実公 昭56−1813（ＪＰ，Ｙ２) ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References Open 62-133738 (JP, U) Open 58-153242 (JP, U) Open 56-1813 (JP, Y2)
Claims (1)
であり、外殻管をその上端が水面から突出した状態で作
業船より吊り下げ、この外殻管の内側に導管本体をその
上端が水面から水没した状態で取り付け、かつ外殻管内
面と導管本体との間に少なくとも導管本体の内径面積と
同等の間隙部を設け、前記外殻管を導管本体に対して摺
動自在としたことを特徴とする水中投入物用導管。1. An underwater charge conduit for charging a charge material into a water bottom, wherein an outer shell tube is hung from a work boat with its upper end protruding from the water surface, and a conduit body is provided inside the outer shell tube. It is attached with the upper end submerged from the water surface, and a gap portion at least equivalent to the inner diameter area of the conduit body is provided between the inner surface of the outer shell tube and the conduit body, and the outer shell tube is slidable with respect to the conduit body. A conduit for underwater inputs characterized in that
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988125757U JPH076197Y2 (en) | 1988-09-28 | 1988-09-28 | Underwater input conduit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988125757U JPH076197Y2 (en) | 1988-09-28 | 1988-09-28 | Underwater input conduit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0247238U JPH0247238U (en) | 1990-03-30 |
| JPH076197Y2 true JPH076197Y2 (en) | 1995-02-15 |
Family
ID=31376649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988125757U Expired - Lifetime JPH076197Y2 (en) | 1988-09-28 | 1988-09-28 | Underwater input conduit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH076197Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58153242U (en) * | 1982-04-08 | 1983-10-13 | 株式会社四電技術コンサルタント | Underwater input guide tube with buffer plate |
-
1988
- 1988-09-28 JP JP1988125757U patent/JPH076197Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0247238U (en) | 1990-03-30 |
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