EP0205341A1 - Dispositif destiné à travailler sur fond subaquatique - Google Patents

Dispositif destiné à travailler sur fond subaquatique Download PDF

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Publication number
EP0205341A1
EP0205341A1 EP86304433A EP86304433A EP0205341A1 EP 0205341 A1 EP0205341 A1 EP 0205341A1 EP 86304433 A EP86304433 A EP 86304433A EP 86304433 A EP86304433 A EP 86304433A EP 0205341 A1 EP0205341 A1 EP 0205341A1
Authority
EP
European Patent Office
Prior art keywords
platform
leg
working
underwater
ground
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.)
Withdrawn
Application number
EP86304433A
Other languages
German (de)
English (en)
Inventor
Nobuhiko Miyanagi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0205341A1 publication Critical patent/EP0205341A1/fr
Withdrawn legal-status Critical Current

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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
    • E02F3/8858—Submerged units
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/006—Dredgers or soil-shifting machines for special purposes adapted for working ground under water not otherwise provided for
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/06—Floating substructures as supports
    • E02F9/062—Advancing equipment, e.g. spuds for floating dredgers

Definitions

  • This invention relates to underwater ground working apparatus.
  • the invention accordingly provides underwater ground working apparatus comprising a platform for location generally above an underwater site at which working is desired to be carried out, the platform being positioned in use at or above water level, a leg mounted on the platform and extending in use generally downwardly therefrom into the water, means mounted on the leg for working the ground generally below the platform, and means for controlling operation of the working means.
  • the leg is arranged so that it can engage the ground in use thereby to stabilise the leg and the working means.
  • the working means may advantageously be mounted for movement generally up and down on the leg.
  • the leg may be mounted for generally vertical movement relative to the platform, the apparatus comprising means for raising and lowering the leg.
  • the leg may be mounted such that its orientation is angularly adjustable relative to the platform.
  • the apparatus preferably further comprises stabilising means mounted on the platform for engaging the ground whereby to stabilise the platform, and means for raising and lowering stabilising means relative to the platform.
  • the stabilising means would be operable to support the platform above the water level.
  • platform is used in this specification in a general sense to include both buoyant vessels and non-buoyant structures which are supported on stilts extending down through the water to the ground.
  • Underwater ground working apparatus generally indicated 1 comprises a platform in the form of a buoyant pontoon 2 which is formed by several buoyancy compartments 3 secured together. This sectional construction allows for ease of transport by ship or overland. Secured to the compartments 3 are four sleeves 5 in each of which is mounted a respective stilt 4 for engagement with the sea bed 8.
  • the stilts 4 may be of circular or rectangular cross section as shown in Figures 3,4 and 5 and in Figures 1 and 2 are shown as circular.
  • the sleeves provide for the stilts 4 to ascend and descend relative to the pontoon 2 and there is an appropriate mechanical interengagement (such as rack and pinion) between the stilts 4 and their respective sleeves 5 for raising and lowering the stilts 4 relative to the pontoon 2.
  • the stilts 4 shown in Figures 3 and 5 have teeth 17 whilst in Figure 4 the stilt is provided with indentations 18 so that in each case the stilt 4 may act as a rack co-operating with a suitable pinion (not shown) within the sleeve 5.
  • Power for raising and lowering the stilts 4 is provided by power units 41 and each stilt can be controlled independently.
  • Reference numeral 44 refers to a profiler machine which runs on rails 42 mounted on the pontoon 2, the function of the profiler machine being to provide imaging of the underwater activities for viewing on deck.
  • the machine may incorporate sensors such as television cameras, echo-sounders or lasers for obtaining measurements of the profile of the sea bed and may incorporate computer control.
  • a sleeve 7 Secured to one of the compartments 3 is a sleeve 7 in which is adjustably mounted a leg 6 similar to the mounting of stilts 4 in sleeves 5 and may simularly be of circular or rectangular section and forming a rack as in Figures 3, 4 and 5.
  • the sleeve 7 provides for vertical movement of the leg 6 relative to the pontoon 2 and there is again a mechanical drive connection between the sleeve 7 and leg 6 to raise and lower the leg.
  • the leg 6 can engage the ground 8 in use to provide stability for the leg and for working means 10 which is mounted on the leg.
  • Operation of the working means 10 is controlled from an operation and can also be raised and lowered to a limited extent on the leg 6 by means of hydrdaulic rams 12 each attached at one end to the turntable 11 and at the other end to a base plate 13 which rests on the sea bed 8.
  • Hydraulic motors 14 provide for rotation of the turntable 11 about the leg 6 by means of a drive mechanism 15 incorporating gearing, chain and sprockets or the like.
  • a boom 20 is pivoted to the turntable 11 and can be raised and lowered by means of a pair of hydraulic rams 21.
  • An arm 22 is pivoted in turn to the boom 20 and is movable relative thereto by a hydraulic ram 23.
  • Pincers 24 are pivoted to the arm 22, operation of the pincers being by respective hydraulic rams 25 each pivoted at one end to a pincer 24 and pivoted at the other end to a respective trunnion 26 secured to the arm 22.
  • the pincers 24 are shown in a closed position in solid lines in figure 6, ghost lines showing the pincers open.
  • Reference numeral 28 refers to a hydraulic control unit for the supply of hydraulic fluid to the motors 14 and rams 12, 21, 23 and 25.
  • Reference numeral 29 designates a counterweight mounted on the turntable 11. In order to lock the turntable 11 relative to the leg 6, means in the form of hydraulic cylinders 30 are mounted on the turntable 11 to operate locking bolts 31.
  • FIGs 8 and 9 show an alternative arrangement in which the leg 6 is of rectangular cross section.
  • the working means 10 is shown in various stages of lifting objects.
  • Figure lO shows an alternative working means 10'in the form of a mechanical grab which is pivoted to the turntable 11 in place of the pincer assembly 2 0 -26.
  • the grab assembly comprises a 'bracket 33 pivoted to the turntable 11, a hydraulic ram 34 being connected therebetween.
  • a first parallel pair of arms 35 is pivoted to the bracket 33 at one end and to both a link 36 and a second pair of parallel arms 37 at the other end..
  • the second pair of arms 37 are pivoted to a link 38 to which is secured one of a pair of grab members 39, 39'.
  • the other grab member 39' is pivoted to the link 38 and is movable relative to the first grab member 39 by means of a hydraulic ram 40. Movement of the linkage 35-40 relative to the bracket 33 is achieved by virtue of a hydraulic ram 32 pivoted at its opposite end to the brakcet 33 and the upper arm 35.
  • the grab assembly 10' is shown in different positions in ghost lines in figure 10.
  • the pontoon with the stilts 4 and leg 6 raised is floated out on the water to a position generally above the underwater site at which work is to be carried out.
  • the stilts 4 and leg 6 are then lowered so as to engage the ground and their movement relative to the pontoon 2 is continued so that the pontoon is raised bodily out of the water as shown in figure 2. In this position, it will be appreciated that the effect of waves and tide is considerably less on the apparatus than with the pontoon in the water.
  • Figure 11 shows a variation in which the leg 6 is mounted such that its orientation is angularly adjustable relative to the pontoon 2. This is achieved by means of a pivotal connection between the sleeve 7 and the pontoon 2.
  • Reference numeral 46 designates flexible hydraulic hoses connecting the control unit 28 and the operation compartment 43.
  • the working means shown in figure 11 is'similar to that of figures 1,2,6,7,8 and 9 except that a scoop 50 is provided pivoted to the arm 22 in place of the pincers 24 and is operated by a single hydaulic ram 25.
  • the angular adjustability of the leg 6 increases the versitility of the apparatus, allowing it to be used for example for the grading of a slope 51.
  • the pincer assembly 10 is being used for building up piles of boulders 52, for example, in the construction of a breakwater. Operation of the leg 6 and pincer assembly 10 are in this instance being operated remotely by a diver 53 by means of a control box 54 connected to the control compartment 43 by a flexible control line 55. This is an alternative to controlling the leg and assembly 10 from the control location 43 itself and viewing the action of the pincers by a closed circuit television arrangement using a television camera underwater mounted, for example, on the leg 6 or one of the stilts 4.
  • the apparatus has been used in the construction of a pipline under the sea bed.
  • a modified working means 10' which has grab members 57 in place of the pincers 24
  • operation is as follows. Firstly, a trench 60 is dug, the dredged sand or other material 61 being placed on one side. A bedding layer of sand 62 is then compacted into the base of the trench 60 and on this the pipes 63 are laid. Some of the material 61 is then placed into the trench at 64 and 65 followed by a layer of stones 66. Finally, a layer of the dredged material 61 is compacted on top of the stones 66 at 67. For the purposes of compaction, the grab members 57 are closed together or alternatively a separate compacting tool may be used mounted on the turntable 11.
  • a modified turntable 11' has two forms of working means mounted thereon.
  • On the right hand side is a scoop assembly like that in figure 6 while on the left hand side a rock breaker 56 is pivoted to the arm 22 in place of the scoop 50.
  • the right hand working means is additionally provided with an injector pump 58 to suck up material loosened by the scoop 50. The dredged material passes through a flexible hose 59 connected to the pump 58 and is discharged into a barge 70.
  • a drilling assembly 72 is pivoted to the turntable 11.
  • This assembly comprises an arm 73 pivoted to the turntable 11 and moved relative thereto by a hydraulic ram 74.
  • a hydraulic motor 75 is pivoted to the outer end of the arm 73 and its orientation relative thereto is adjusted by a hydraulic ram 76.
  • the motor drives a drill 77 to form holes 78 in the ground and into which piles 79 may be driven by a hydraulic vibration hammer (not shown) which may be attached to the arm 73.
  • the above described apparatus can be used for a very large variety of purposes and has the great advantage that, because the working means is fully submerged during operation, it is not susceptible to adverse surface conditions such as bad weather and waves. It also has the advantage of eliminating the danger of injury to a diver working underwater or, in the case of underwater control by a diver, reducing such danger to a minimum.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
EP86304433A 1985-06-10 1986-06-10 Dispositif destiné à travailler sur fond subaquatique Withdrawn EP0205341A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8514565 1985-06-10
GB08514565A GB2176153B (en) 1985-06-10 1985-06-10 Underwater ground working apparatus

Publications (1)

Publication Number Publication Date
EP0205341A1 true EP0205341A1 (fr) 1986-12-17

Family

ID=10580440

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86304433A Withdrawn EP0205341A1 (fr) 1985-06-10 1986-06-10 Dispositif destiné à travailler sur fond subaquatique

Country Status (2)

Country Link
EP (1) EP0205341A1 (fr)
GB (1) GB2176153B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0826836A1 (fr) * 1996-09-03 1998-03-04 Ballast Nedam Grond en Wegen B.V. Embarcation comportant une élinde verticale avec outils pour travaux sous l'eau
EP1054111A1 (fr) * 1999-05-19 2000-11-22 Boudewijn Gabriel Van Rompay Méthode et installation pour réaliser des opérations sous-marines
DE102010022802A1 (de) * 2010-06-05 2011-12-08 Ecosoil Ost Gmbh Verfahren zur Verbesserung der bodenmechanischen Eigenschaften(z.B.Lagerungsdichte) von Böden im amphibischen Wasser-Land-Übergangsbereich von Gewässern, Bodensenken und Baugrundsanierungsgebieten
FR3031957A1 (fr) * 2015-01-26 2016-07-29 Michel Pierre Armand Baylot Dispositif modulaire de demantelement d'epaves en mer profonde et de recuperation de cargaison

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0253693A (ja) * 1988-08-13 1990-02-22 Sakagami Masao 海底作業システム
AU640081B2 (en) * 1991-12-26 1993-08-12 Shinko Jyuki Co., Ltd Working machine
CN115288071A (zh) * 2022-08-08 2022-11-04 重庆交通大学 一种水下破岩可视化装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2092011A (en) * 1936-03-16 1937-09-07 Harry A Musham Spud
FR1388757A (fr) * 1963-11-18 1965-02-12 De Long Corp Dispositif mobile pour travaux maritimes
US3218739A (en) * 1963-05-13 1965-11-23 Ellicott Machine Corp Dredge
DE1484718A1 (de) * 1962-09-11 1969-02-20 Manitowoc Shipbuilding Inc Bagger
US3629963A (en) * 1968-12-23 1971-12-28 Japan Construction And Dev Co Apparatus for levelling underwater ground
FR2383273A1 (fr) * 1977-03-08 1978-10-06 Ballast Nedam Groep Nv Dispositif pour l'excavation de sols durs
GB2065751A (en) * 1979-12-21 1981-07-01 Brown John Constr Deep water extractor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL301281A (fr) * 1963-12-03
NL162159C (nl) * 1971-01-18 1980-04-15 Ihc Holland Nv Kunstmatig eiland.
FR2128893A5 (fr) * 1971-03-08 1972-10-27 Petroles Cie Francaise
GB1328264A (en) * 1971-05-17 1973-08-30 Hollandsche Aannemings Mij Nv Apparatus for performing dredging and other underwater operations

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2092011A (en) * 1936-03-16 1937-09-07 Harry A Musham Spud
DE1484718A1 (de) * 1962-09-11 1969-02-20 Manitowoc Shipbuilding Inc Bagger
US3218739A (en) * 1963-05-13 1965-11-23 Ellicott Machine Corp Dredge
FR1388757A (fr) * 1963-11-18 1965-02-12 De Long Corp Dispositif mobile pour travaux maritimes
US3629963A (en) * 1968-12-23 1971-12-28 Japan Construction And Dev Co Apparatus for levelling underwater ground
FR2383273A1 (fr) * 1977-03-08 1978-10-06 Ballast Nedam Groep Nv Dispositif pour l'excavation de sols durs
GB2065751A (en) * 1979-12-21 1981-07-01 Brown John Constr Deep water extractor

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0826836A1 (fr) * 1996-09-03 1998-03-04 Ballast Nedam Grond en Wegen B.V. Embarcation comportant une élinde verticale avec outils pour travaux sous l'eau
EP1054111A1 (fr) * 1999-05-19 2000-11-22 Boudewijn Gabriel Van Rompay Méthode et installation pour réaliser des opérations sous-marines
BE1013045A3 (nl) * 1999-05-19 2001-08-07 Rompay Boudewijn Gabriel Van Werkwijze en installatie voor het onder water uitvoeren van werkzaamheden met een kraan op een vastgezet ponton.
US6318284B1 (en) 1999-05-19 2001-11-20 VAN ROMPAY BOUDEWIJN GABRIëL Method and installation for carrying out operations under water with a crane on a fixed pontoon
DE102010022802A1 (de) * 2010-06-05 2011-12-08 Ecosoil Ost Gmbh Verfahren zur Verbesserung der bodenmechanischen Eigenschaften(z.B.Lagerungsdichte) von Böden im amphibischen Wasser-Land-Übergangsbereich von Gewässern, Bodensenken und Baugrundsanierungsgebieten
DE102010022802B4 (de) * 2010-06-05 2016-06-09 Ecosoil Ost Gmbh Verfahren und Vorrichtung zur Verbesserung der bodenmechanischen Eigenschaften von Böden im amphibischen Wasser-Land-Übergangsbereich von Gewässern, Bodensenken und Baugrundsanierungsgebieten
FR3031957A1 (fr) * 2015-01-26 2016-07-29 Michel Pierre Armand Baylot Dispositif modulaire de demantelement d'epaves en mer profonde et de recuperation de cargaison

Also Published As

Publication number Publication date
GB2176153B (en) 1988-10-12
GB2176153A (en) 1986-12-17
GB8514565D0 (en) 1985-07-10

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