JPS61122332A - Excavator and excavating method - Google Patents
Excavator and excavating methodInfo
- Publication number
- JPS61122332A JPS61122332A JP24122784A JP24122784A JPS61122332A JP S61122332 A JPS61122332 A JP S61122332A JP 24122784 A JP24122784 A JP 24122784A JP 24122784 A JP24122784 A JP 24122784A JP S61122332 A JPS61122332 A JP S61122332A
- Authority
- JP
- Japan
- Prior art keywords
- suction
- pipe
- excavator
- excavation
- injection nozzles
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
- E02F3/92—Digging elements, e.g. suction heads
- E02F3/9243—Passive suction heads with no mechanical cutting means
- E02F3/925—Passive suction heads with no mechanical cutting means with jets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、ジェット流を利用して海底を掘削すると共に
海底の砂等を船内に採取する掘削機及び掘削工法間する
ものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an excavator and an excavation method for excavating the seabed using a jet stream and collecting sand and the like from the seabed into a ship.
（従来の技術）
従来、海底を掘削する場合には、例えばパワーショベル
等を用いて行われているが、かかる従来の方法では掘削
が連続して出来ないために作業能率が悪く、また他の方
法で掘削した場合でも掘削した土砂等の掘削物を回収す
るのに、通常渦巻ポンプを用いているので、ポンプの羽
根が土砂で破損する等回収能率が悪くなっていた。(Prior art) Conventionally, when excavating the seabed, it has been carried out using, for example, a power shovel, but such conventional methods have poor work efficiency because they cannot excavate continuously, and also Even when excavating using this method, a centrifugal pump is usually used to collect the excavated materials such as earth and sand, which results in poor collection efficiency such as the pump blades being damaged by the earth and sand.
（発明が解決しようとする問題点）
本発明は、上記の点に鑑みてなされたものであって、そ
の目的とするところは掘削と掘削物の回収とを、同時に
且つ連続して行うことができ、しかも掘削土砂によって
破損することも少ない掘削機及び掘削工法を提供するに
ある。(Problems to be Solved by the Invention) The present invention has been made in view of the above points, and its purpose is to simultaneously and continuously perform excavation and recovery of excavated materials. To provide an excavator and an excavation method that can be used for excavation and are less likely to be damaged by excavated earth and sand.
（問題点を解決するための手段）
本発明は、吸引管１と吐出管２との接続部の内周壁に周
方向に沿って吸引用噴射ノズル３を複数個配し、吸引方
向とは逆方向に噴射する掘削用噴射ノズル４を吸引管１
の吸引口５の外周に複数個配して成ることを特徴とする
掘削機を特定発明とし、吸引管１と吐出管２との接続部
の内周壁に周方向に沿って吸引用噴射ノズル３を複数個
配し、吸引方向とは逆方向に噴射する掘削用噴射ノズル
４を吸引管１の吸引口５の外周に複数個配して構成され
る掘削機Ａを用い、掘削機Ａの吐出管２を搬送管６の一
端に接続すると共に、搬送管６の他端を船り内に開口し
、掘削機Ａの吸引口５を海底Ｂに近接して、掘削用噴射
ノズル４からの噴射水７にて海底Ｂを掘削すると共に、
土砂等の掘削物Ｃを吸引口５から船り内に搬送すること
を特徴とする掘削工法を併合発明とするものである。(Means for Solving the Problems) The present invention provides a plurality of suction injection nozzles 3 disposed along the circumferential direction on the inner circumferential wall of the connecting portion between the suction pipe 1 and the discharge pipe 2, and in the opposite direction to the suction direction. A drilling injection nozzle 4 that sprays in the direction is connected to a suction pipe 1
The specified invention is an excavator characterized in that a plurality of suction nozzles 3 are disposed on the outer circumference of the suction port 5, and a suction injection nozzle 3 is arranged along the circumferential direction on the inner peripheral wall of the connection part between the suction pipe 1 and the discharge pipe 2. Excavator A is configured with a plurality of drilling injection nozzles 4 disposed around the outer periphery of the suction port 5 of the suction pipe 1, and a plurality of drilling injection nozzles 4 that eject in the opposite direction to the suction direction are used. The pipe 2 is connected to one end of the transport pipe 6, the other end of the transport pipe 6 is opened into the boat, the suction port 5 of the excavator A is brought close to the seabed B, and the injection from the excavation injection nozzle 4 is carried out. While excavating the seabed B with water 7,
The combined invention is an excavation method characterized by conveying excavated material C such as earth and sand into a boat from a suction port 5.
（作用）
本発明は、吸引用噴射ノズルと掘削用噴射ノズルとで、
掘削と掘削物の回収とを、同時に且つ連続して行うこと
ができ、しかも掘削土砂によって破損することも少な（
するものである。(Function) The present invention includes a suction injection nozzle and an excavation injection nozzle,
Excavation and recovery of excavated materials can be performed simultaneously and continuously, and there is less damage caused by excavated soil (
It is something to do.
（実施例） 以下、本発明を図示の実施例に基づいて詳述する。(Example) Hereinafter, the present invention will be explained in detail based on illustrated embodiments.
掘削機Ａは、第２図に示すように吸引管１と吐出管２と
の接続部の内周壁に周方向に沿って吸引用噴射ノズル３
を複数個配し、吸引方向とは逆方向に噴射する掘削用噴
射ノズル４を吸引管１の吸引口５の外周に複数個配して
構成されている。吸引管１と吐出管２との接続部には、
吸引管１に向けてラッパ状に拡がった噴射室８．９を形
成しである。これら噴射室８．９の吸引管１がわには環
状の流体導入路１０．１１を各々設けている。流体導入
路１０、１１には、駆動流体イを噴射する吸引用噴射ノ
ズル３ａと揚水用の空気口を噴射するための吸引用噴射
ノズル３ｂとを形成している。１２はデリベリ管であり
、１３はエアー管である。掘削用噴射ノズル４は流体導
入路１１の直ぐ下に並設された流体導入路１４から下方
に向けて突出してあり、掘削用噴射ノズル４の先端は吸
引口５の外周に位置させている。As shown in FIG. 2, the excavator A has a suction injection nozzle 3 along the circumferential direction on the inner circumferential wall of the connection part between the suction pipe 1 and the discharge pipe 2.
A plurality of drilling injection nozzles 4 are arranged around the suction port 5 of the suction pipe 1, and a plurality of excavation injection nozzles 4 that eject in the opposite direction to the suction direction are arranged. At the connection part between the suction pipe 1 and the discharge pipe 2,
An injection chamber 8.9 is formed which expands in a trumpet shape toward the suction pipe 1. Annular fluid introduction passages 10.11 are provided on each side of the suction pipe 1 of these injection chambers 8.9. The fluid introduction paths 10 and 11 are formed with a suction injection nozzle 3a for ejecting the driving fluid A and a suction injection nozzle 3b for ejecting an air port for pumping water. 12 is a delivery tube, and 13 is an air tube. The excavation injection nozzle 4 projects downward from a fluid introduction path 14 arranged in parallel immediately below the fluid introduction path 11, and the tip of the excavation injection nozzle 4 is located on the outer periphery of the suction port 5.
しかして第３図のように掘削用噴射ノズル４から噴射水
７が噴射されて海底Ｂの土砂等の掘削をし、またそれと
共に吸引用噴射ノズル３から駆動流体イ及び揚水空気口
が噴射されて吸引口５から掘削物Ｃを吸引して、可撓性
を有する搬送管６にて船り内に回収することができる。As shown in Fig. 3, the water jet 7 is jetted from the drilling jet nozzle 4 to excavate the earth and sand on the seabed B, and at the same time, the driving fluid A and the pumping air port are jetted from the suction jet nozzle 3. The excavated material C can be sucked through the suction port 5 and recovered into the boat using the flexible conveyance pipe 6.
第２図は掘削機Ａの他の実施例を示してあって、吸引用
噴射ノズル３ｂを噴射室９に収めずに上記接続部の内壁
に直接形成している第４図は船りに装備された掘削機構
の全体図を示している。掘削物Ｃを回収は、駆動流体イ
となる海水を水中ポンプ１５にて汲み上げてポンプ１６
にて掘削機Ａに圧送し、またコンプレッサー１７にて掘
削機Ａに圧縮空気を供給するようにしている。 １７は
エンジン、１８は発電機、１９はサクション管、２０は
キャップタイヤ、２１は吊り下げ用ワイヤーである。海
底りの掘削は、水中ポンプ２２にて海水を汲み上げてポ
ンプ２３にて圧送して掘削用噴射ノズル４から噴射する
ようにしている。２４はモーターである。Fig. 2 shows another embodiment of the excavator A, in which the suction injection nozzle 3b is not housed in the injection chamber 9 but is formed directly on the inner wall of the connection part. Fig. 4 shows the equipment installed on a boat. The overall diagram of the excavation mechanism is shown. To recover the excavated material C, seawater, which serves as the driving fluid A, is pumped up by the submersible pump 15 and pumped into the pump 16.
The compressed air is supplied to the excavator A by a compressor 17, and the compressed air is supplied to the excavator A by a compressor 17. 17 is an engine, 18 is a generator, 19 is a suction pipe, 20 is a cap tire, and 21 is a hanging wire. When excavating the seabed, seawater is pumped up by a submersible pump 22, pumped by a pump 23, and then injected from an excavation injection nozzle 4. 24 is a motor.
尚、本発明の掘削手段は噴射水で行うが、海底が岩盤等
硬い場合には掘削刃を先端に取り付けて掘削刃の回転に
よって掘削しても良い。Incidentally, the excavation means of the present invention is carried out by jetting water, but if the seabed is hard such as rock, a digging blade may be attached to the tip and digging may be carried out by rotation of the digging blade.
第５図は船りのクレーンＥに掘削機Ａを吊り下げて水深
に応じて掘削機Ａの吸引口５を常に海底に近接するよう
にした実施例を示している。FIG. 5 shows an embodiment in which an excavator A is suspended from a crane E on a boat so that the suction port 5 of the excavator A is always brought close to the seabed depending on the water depth.
本発明は、上述のように吸引管と吐出管との接続部の内
周壁に周方向に沿って吸引用噴射ノズルを複数個配し、
吸引方向とは逆方向に噴射する掘削用噴射ノズルを吸引
管の吸引口の外周に複数個配したので、掘削用噴射ノズ
ルから噴射水が噴射されて海底の土砂等の掘削をし、ま
たそれと共に吸引用噴射ノズルによって吸引口から掘削
物を吸引して船内に回収することができ、掘削と掘削物
の回収とを同時に且つ連続して行うことができるという
効果を奏する。また吸引管と吐出管との接続部の内周壁
に周方向に沿って吸引用噴射ノズルを複数個配したので
、掘削物が吸引用噴射ノズルに直接衝突せず、掘削土砂
による破損を防ぐことができる。更に掘削手段と掘削物
の回収手段とが一体となっているので、操作及び取扱が
し易く作業能率が向上するという効果を奏する。As described above, the present invention arranges a plurality of suction injection nozzles along the circumferential direction on the inner circumferential wall of the connection part between the suction pipe and the discharge pipe,
Since a plurality of drilling injection nozzles that spray in the opposite direction to the suction direction are arranged around the outer circumference of the suction port of the suction pipe, water is sprayed from the drilling injection nozzles to excavate earth and sand on the seabed, and At the same time, the excavated material can be sucked in from the suction port by the suction injection nozzle and recovered into the ship, resulting in the effect that excavation and recovery of the excavated material can be performed simultaneously and continuously. In addition, since a plurality of suction injection nozzles are arranged along the circumferential direction on the inner circumferential wall of the connection part between the suction pipe and the discharge pipe, the excavated material does not directly collide with the suction injection nozzles, thereby preventing damage caused by excavated earth and sand. Can be done. Furthermore, since the excavation means and the excavated material recovery means are integrated, it is easy to operate and handle, and the work efficiency is improved.
また掘削機の吐出管を搬送管の一端に接続すると共に、
搬送管の他端を船内に開口し、４ 掘削機
の吸引口を海底に近接して、掘削用噴射ノズルからの噴
射水にて海底を掘削すると共に、掘削機を吸引口から船
内に搬送するので、掘削機を船から吊すだけで掘削・回
収が可能となって掘削機の取扱が簡単となって作業能率
が向上し、しかも掘削の際にパワーショベル等のように
衝撃が船に伝わらないという効果を奏する。Also, connect the discharge pipe of the excavator to one end of the conveyor pipe,
Open the other end of the transport pipe into the ship, bring the suction port of the excavator close to the seabed, excavate the seabed with water jetted from the drilling injection nozzle, and transport the excavator into the ship from the suction port. Therefore, it is possible to excavate and recover by simply hanging the excavator from the ship, making it easier to handle the excavator and improving work efficiency.Furthermore, the impact is not transmitted to the ship during excavation, unlike with power shovels, etc. This effect is achieved.
第１図（ａ） （ｂ）は本発明の掘削機の実施例を示す
縦断面図及び底面図、第２図は本発明の掘削機の他の実
施例を示す縦断面図、第３図は掘削機を用いた掘削作業
を示す概略図、第４図は掘削機を示す概略図、第５図は
掘削機を用いた掘削作業を示す概略図である。Figures 1 (a) and (b) are a vertical sectional view and a bottom view showing an embodiment of the excavator of the present invention, Figure 2 is a longitudinal sectional view showing another embodiment of the excavator of the present invention, and Figure 3 is a vertical sectional view showing another embodiment of the excavator of the present invention. 4 is a schematic diagram showing the excavating machine. FIG. 5 is a schematic diagram showing the excavating machine.
Claims (2)
って吸引用噴射ノズルを複数個配し、吸引方向とは逆方
向に噴射する掘削用噴射ノズルを吸引管の吸引口の外周
に複数個配して成ることを特徴とする掘削機。(1) A plurality of suction injection nozzles are arranged along the circumferential direction on the inner circumferential wall of the connection part between the suction pipe and the discharge pipe, and the excavation injection nozzle, which ejects in the opposite direction to the suction direction, is connected to the suction port of the suction pipe. An excavator characterized in that a plurality of excavators are arranged around the outer circumference of the excavator.
引用噴射ノズルを複数個配し、吸引方向とは逆方向に噴
射する掘削用噴射ノズルを吸引管の外周に複数個配して
構成される掘削機を用い、掘削機の吐出管を搬送管の一
端に接続すると共に、搬送管の他端を船内に開口し、掘
削機の吸引口を海底に近接して、掘削用噴射ノズルから
の噴射水にて海底を掘削すると共に、土砂等の掘削物を
吸引口から船内に搬送することを特徴とする掘削工法。(2) A plurality of suction injection nozzles are arranged circumferentially on the inner peripheral wall of the connection part between the suction pipe and the discharge pipe, and a plurality of drilling injection nozzles that eject in the opposite direction to the suction direction are arranged on the outer periphery of the suction pipe. Connect the discharge pipe of the excavator to one end of the transport pipe, open the other end of the transport pipe into the ship, bring the suction port of the excavator close to the seabed, and excavate. An excavation method characterized by excavating the seabed with water jetted from a water jet nozzle, and transporting excavated material such as earth and sand into the ship from a suction port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24122784A JPS61122332A (en) | 1984-11-15 | 1984-11-15 | Excavator and excavating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24122784A JPS61122332A (en) | 1984-11-15 | 1984-11-15 | Excavator and excavating method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61122332A true JPS61122332A (en) | 1986-06-10 |
Family
ID=17071090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24122784A Pending JPS61122332A (en) | 1984-11-15 | 1984-11-15 | Excavator and excavating method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61122332A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019015286A (en) * | 2017-07-03 | 2019-01-31 | 裕司 阪本 | Jet twister pump |
| JP2023113066A (en) * | 2022-02-02 | 2023-08-15 | 太平電業株式会社 | Suction apparatus |
-
1984
- 1984-11-15 JP JP24122784A patent/JPS61122332A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019015286A (en) * | 2017-07-03 | 2019-01-31 | 裕司 阪本 | Jet twister pump |
| JP2023113066A (en) * | 2022-02-02 | 2023-08-15 | 太平電業株式会社 | Suction apparatus |
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