WO1995021303A1 - Procede de dragage a l'aide d'une drague suceuse porteuse, et drague suceuse porteuse pour sa mise en ×uvre - Google Patents

Procede de dragage a l'aide d'une drague suceuse porteuse, et drague suceuse porteuse pour sa mise en ×uvre Download PDF

Info

Publication number
WO1995021303A1
WO1995021303A1 PCT/NL1995/000048 NL9500048W WO9521303A1 WO 1995021303 A1 WO1995021303 A1 WO 1995021303A1 NL 9500048 W NL9500048 W NL 9500048W WO 9521303 A1 WO9521303 A1 WO 9521303A1
Authority
WO
WIPO (PCT)
Prior art keywords
suction dredger
well
hopper suction
vessel
hopper
Prior art date
Application number
PCT/NL1995/000048
Other languages
English (en)
Inventor
Johan Van Herwijnen
Original Assignee
Hollandsche Beton Groep N.V.
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 Hollandsche Beton Groep N.V. filed Critical Hollandsche Beton Groep N.V.
Priority to AU15455/95A priority Critical patent/AU1545595A/en
Publication of WO1995021303A1 publication Critical patent/WO1995021303A1/fr

Links

Classifications

    • 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
    • E02F7/00—Equipment for conveying or separating excavated material
    • E02F7/02—Conveying equipment mounted on a dredger
    • E02F7/023—Conveying equipment mounted on a dredger mounted on a floating dredger
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F7/00—Equipment for conveying or separating excavated material
    • E02F7/04—Loading devices mounted on a dredger or an excavator hopper dredgers, also equipment for unloading the hopper

Definitions

  • the invention relates to dredging by means of a hopper suction dredger.
  • dredging by means of sucking up the material for dredging, temporary storage (in the well of the hopper suction dredger) , transport of the dredged material and discharging thereof.
  • a procedure of this type has advantages, which are related to the mobility of a hopper suction dredger.
  • the hopper suction dredger can be used directly. It is not necessary to provide pressure pipes for transport of the dredged material: because of the temporary storage in the well of the hopper suction dredger, the latter is itself able to take care of the removal.
  • the method of dredging by means of a hopper suction dredger is subject to very specific conditions. For instance, the abovementioned functions must be carried out in accordance with a specific fixed pattern. Deviations from that pattern are not possible and, consequently, the flexibility of a hopper suction dredger is limited in this respect.
  • a hopper suction dredger represents a high capital investment. Therefore, the desired return can be achieved only if productivity is relatively high. It is therefore necessary to find a balance between, on the one hand, the time which is needed to suck up the material for dredging and, on the other hand, the time which is needed for sailing backwards and forwards between the dredging location and the discharge site. If the discharge site is a long way away from the dredging location, the productivity is relatively low because of the long sailing times.
  • the aim of the invention is, therefore, to eliminate the restrictive disadvantages, as mentioned above, from dredging using a hopper suction dredger.
  • This is achieved by means of a method comprising sucking up the material for dredging with the aid of the suction installation of the hopper suction dredger, feeding the sucked-up dredged material to at least the well of an other vessel, sailing the other vessel from the location where the dredged material has been sucked up to a location for discharging said material, and the subsequent discharging of the dredged material from the other vessel at the discharge site.
  • the method according to the invention may furthermore comprise loading of the well of the hopper suction dredger, sailing the hopper suction dredger to the discharge site and discharging the hopper suction dredger at the discharge site.
  • the dredged material can be divided between the well of the hopper suction dredger itself and the well of another vessel, the suction installation can be in operation for a relatively long time. Consequently, a more favourable ratio is achieved between the time for which the hopper suction dredger is effectively carrying out dredging work and the sailing time required for removal. The consequence thereof is that the productivity increases, and, consequently, the return also increases.
  • the other vessel can represent an appreciably lower capital investment than the hopper suction dredger itself, which is beneficial for the cost price of the work.
  • Loading of the well of the hopper suction dredger and the other vessel can be carried out in various ways. According to a good option, the well of at least one other vessel is first fully loaded with dredged material, after which, at one and the same time, said vessel sails away and the well of the hopper suction dredger is loaded. In the case of deep beds, it can be more advantageous for the suction process first to load the hopper suction dredger and then to load the other vessels. To this end, the other vessel can be provided with propulsion means of its own, but it is also possible to move said vessel by means of a tug.
  • the well of a first other vessel is first fully loaded, after which, at one and the same time, the first other vessel sails away and the well of a second other vessel is fully loaded, after which, at one and the same time, the second other vessel sails away and the well of the hopper suction dredger is loaded.
  • the well of a first other vessel is first fully loaded, after which, at one and the same time, the first other vessel sails away and the well of a second other vessel is fully loaded, after which, at one and the same time, the second other vessel sails away and the well of the hopper suction dredger is loaded.
  • a procedure of this type is particularly advantageous if the sailing speed of the other vessels, on the one hand, and that of the hopper suction dredger, on the other hand, are related in such a way that the hopper suction dredger has arrived back at the location for sucking up the material for dredging at about the same point in time as the first other vessel has arrived back at said location. It is also possible to use the hopper suction dredger exclusively for loading and to allow the transport of the dredged material to be carried out by the other vessels.
  • said vessel In order to be able to load the other vessel while the hopper suction dredger is dredging, said vessel must remain in the vicinity a certain, constant, distance away. This can be achieved, for example, in that, during loading of the well of the other, vessel, said other vessel sails,- independently of the hopper suction dredger, with the hopper suction dredger and is loaded by means of a dynamically positioned arm. As an alternative it is also possible to tow the other vessel behind the hopper suction dredger while the well of said other vessel is being loaded.
  • the invention also relates to a hopper suction dredger which is suitable for carrying out the method according to the invention.
  • Said hopper suction dredger is provided with a pressure pipe for loading sucked-up dredged material, the pressure pipe being branched, one branch leading to the well of the hopper suction dredger and it being possible to connect the other branch to the well of another vessel.
  • a shut-off device is provided in each branch.
  • a dynamically positioned boom can also be provided, which carries the branch which can be connected to another vessel or is manoeuvrable above a loading opening.
  • Figure 1 shows a diagrammatic top view of a first variant of the method according to the invention.
  • Figures 2a and 2b show a diagrammatic top view of a second and third variant.
  • Figure 3 shows a hopper suction dredger for use with the method according to the invention.
  • Figure 4 shows a possible timetable associated with the method according to the invention.
  • FIG. 1 shows a hopper suction dredger, which is indicated in its entirety by 1, as well as an auxiliary vessel, indicated by 2.
  • the hopper suction dredger 1 has suction arms 3. by means of which the material for dredging is sucked up. The material sucked up is then transferred to the auxiliary vessel 2 with the aid of a pipe 4, which is mounted on a boom which is hingeably mounted on the deck of the hopper suction dredger 1.
  • Hopper suction dredger 1 and auxiliary vessel 2 each have their own drive and consequently are able to sail independently alongside one another.
  • the boom on which the pipe 4 is mounted is dynamically positioned in a known manner, in such a way that the desired distance between the boom and the auxiliary vessel 2 is always ensured, even if there is some swell.
  • an auxiliary vessel 5 is used, which is towed behind the hopper suction dredger 1.
  • a pipe 6 is provided between hopper suction dredger 1 and auxiliary vessel 5. via which pipe 6 the dredged material sucked up by means of the suction pipes 3 is transferred.
  • the auxiliary vessel 5 does not have to have its own drive; it can be a barge which, after it has been uncoupled from the hopper suction dredger 1, is towed away by means of a tug.
  • the third variant in Figure 2b shows other vessels which are loaded on either side of, and behind, the hopper suction dredger.
  • the hopper suction dredger temporarily loads its own well in the period when the loaded vessels 2 or 5 are being replaced by vessels 2 or 5 having an empty well.
  • loading of another vessel can be continued if one of the other vessels which has a full well is replaced by one which has an empty well.
  • FIG. 3 shows a hopper suction dredger partially in cross-section.
  • the suction pipe 3 has been lowered in a known manner to the bottom of the body of water in which the hopper suction dredger 1 is located.
  • the pump 7 By means of the pump 7, the sucked-up dredged material can be transferred, in a known manner, via pipe 8 into the well 9 of the hopper suction dredger 1.
  • the well has an overflow channel 10, via which channel the water dredged up can be discharged.
  • a perforated pipe 11 is also fitted in the well, by means of which pipe the material for dredging which has been dredged up can be sucked out of the well by pump 7 and can be discharged, via the riser 12, into the branch 13, to which, for example, a pressure pipe can be connected.
  • the hopper suction dredger has a pipe 4 via which the material for dredging which has been dredged up is not introduced into the well 9 but is fed to an auxiliary vessel.
  • the pipe 4 is mounted on a boom 14, which is mounted on the deck of the hopper suction dredger 1 so that it is able to swivel.
  • the hopper suction dredger 1 also has a pipe 15. running towards the stern, to which pipe the pipe 6 shown in Figure 2 can be connected, by means of which a vessel 5, towed behind the hopper suction dredger or moving under its own power, can be loaded.
  • Valves 16 with which the various discharge possibilities for the dredged material can be selected, are fitted in the various pipes.
  • FIG. 4 shows an example of the timing of the method according to the invention.
  • Blocks 17, 18 and 19 relate to the dredging operation of the hopper suction dredger.
  • a first auxiliary vessel A is loaded with dredged material during period 17•
  • the auxiliary vessel is emptied and during period 22 the auxiliary vessel A sails back to the hopper suction dredger in order to be loaded again.
  • Period 26 relates to the hopper suction dredger sailing away, 27 to discharging thereof and 28 to the hopper sailing back again.
  • the auxiliary vessels A, B will in general be able to develop a lower sailing speed than the hopper suction dredger C itself. The consequence of- this is that the hopper suction dredger C arrives back at the dredging site in period 28, at approximately the same time as the first auxiliary vessel A in period 22. As indicated, the hopper suction dredger can then load the first auxiliary vessel A again in period 29, the entire cycle being repeated.
  • the first and second auxiliary vessel A, B and the hopper suction dredger C are loaded individually.
  • the hopper suction dredger with an empty well or with a partially or completely filled well is used solely to load one or more auxiliary vessels A, B, D, etc. individually and repeatedly one after the other and that, after the relevant dredging work, or part thereof, has been completed, the hopper suction dredger, if loaded, sails to the discharge site where it discharges its load.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)

Abstract

Procédé de dragage à l'aide d'une drague suceuse porteuse, consistant à aspirer les matières à draguer à l'aide de l'installation d'aspiration de la drague suceuse porteuse, à introduire au moins dans la cuve d'un autre navire les déblais de dragage aspirés, à déplacer l'autre navire du site d'aspiration des déblais de dragage jusqu'à un site de décharge de ces déblais, et à décharger les déblais de dragage au niveau du site de décharge. Le procédé peut également consister à remplir la cuve de la drague suceuse porteuse, à la déplacer jusqu'au site de décharge et à vider la drague suceuse porteuse au niveau de ce site de décharge.
PCT/NL1995/000048 1994-02-03 1995-02-02 Procede de dragage a l'aide d'une drague suceuse porteuse, et drague suceuse porteuse pour sa mise en ×uvre WO1995021303A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU15455/95A AU1545595A (en) 1994-02-03 1995-02-02 Method for dredging using a hopper suction dredger and hopper suction dredger therefor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9400168A NL9400168A (nl) 1994-02-03 1994-02-03 Werkwijze voor het baggeren met een hopperzuiger alsmede hopperzuiger daarvoor.
NL9400168 1994-02-03

Publications (1)

Publication Number Publication Date
WO1995021303A1 true WO1995021303A1 (fr) 1995-08-10

Family

ID=19863783

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL1995/000048 WO1995021303A1 (fr) 1994-02-03 1995-02-02 Procede de dragage a l'aide d'une drague suceuse porteuse, et drague suceuse porteuse pour sa mise en ×uvre

Country Status (3)

Country Link
AU (1) AU1545595A (fr)
NL (1) NL9400168A (fr)
WO (1) WO1995021303A1 (fr)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000006838A1 (fr) * 1998-07-28 2000-02-10 Kress Corporation Bateau-drague et technique de recuperation, de transport et de dechargement
DE19904958A1 (de) * 1999-02-06 2000-08-31 Ali Selimoglu System zur Reinigung von See- und Flußgründen
US6343559B1 (en) 1998-07-28 2002-02-05 Kress Corporation Transportation system for dredged material and method of levy building
US6497535B1 (en) 1998-07-28 2002-12-24 Kress Corporation Material distribution vessel and method for distributing material recovered in a dredging operation
US7025553B1 (en) 1998-07-28 2006-04-11 Michael D. Platt Dredging vessel and method for recovering, transporting and off loading material
US7326020B2 (en) 2000-02-24 2008-02-05 Mudhen, Llc Multi-purpose vessel and method for recovering, storing and/or offloading material in a dredging operation
ES2346127A1 (es) * 2009-04-07 2010-10-08 Centro De Ivnestigaciones Submarinas, S.L. Procedimiento de vertido de materiales de dragado en continuo.
DE102009015203A1 (de) * 2009-06-12 2010-12-16 Bolls, Thorsten Verfahren zur Sediment-Transport-Baggerung und Schleppkopfsaugbagger zur Durchführung des Verfahrens
WO2011003438A1 (fr) * 2009-07-06 2011-01-13 Damen Dredging Equipment B.V. Système de navire de dragage pour dragage en haute mer
EP2141288B1 (fr) 2008-07-04 2011-09-14 Dredging International Asia Pacific Pte. Ltd. Procédé pour la livraison de grandes quantités de sol immergé vers une zone de récupération
EP2966227A2 (fr) 2014-07-10 2016-01-13 Deme Building Materials N.V. Navire de dragage
BE1021994B1 (nl) * 2013-07-16 2016-02-02 Deme Building Materials N.V. Baggertuig
RU2621212C2 (ru) * 2015-09-29 2017-06-01 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Астраханский государственный университет" Способ производства дноуглубительных работ
DE102017103437A1 (de) 2017-02-20 2018-08-23 Werner Möbius Engineering GmbH Verfahren zur Behandlung und Beseitigung von Baggergut aus einer Hafenregion
US10167609B1 (en) 2018-01-12 2019-01-01 Cashman Dredging & Marine Contracting Co., LLC Carouseling articulated dredge and barge
EP3768588A4 (fr) * 2018-03-21 2022-03-30 Cashman Dredging and Marine Contracting, Co., LLC Purgeur pour chaland

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE87709C (fr) *
GB1278811A (en) * 1969-02-13 1972-06-21 Geoffrey Stockdale System of waterborne units for dredging purposes
NL7206865A (fr) * 1972-05-19 1973-11-21
US3820258A (en) * 1972-10-31 1974-06-28 W Fahrner Apparatus and method for dredging retention transport and disposal ofdredged material
NL7413459A (en) * 1974-10-14 1976-04-20 Hollands Aannemersbedrijf Zane Sand and or gravel dredging installation - comprising various barges plying between a suction dredger and unloading station

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE87709C (fr) *
GB1278811A (en) * 1969-02-13 1972-06-21 Geoffrey Stockdale System of waterborne units for dredging purposes
NL7206865A (fr) * 1972-05-19 1973-11-21
US3820258A (en) * 1972-10-31 1974-06-28 W Fahrner Apparatus and method for dredging retention transport and disposal ofdredged material
NL7413459A (en) * 1974-10-14 1976-04-20 Hollands Aannemersbedrijf Zane Sand and or gravel dredging installation - comprising various barges plying between a suction dredger and unloading station

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000006838A1 (fr) * 1998-07-28 2000-02-10 Kress Corporation Bateau-drague et technique de recuperation, de transport et de dechargement
US6343559B1 (en) 1998-07-28 2002-02-05 Kress Corporation Transportation system for dredged material and method of levy building
US6497535B1 (en) 1998-07-28 2002-12-24 Kress Corporation Material distribution vessel and method for distributing material recovered in a dredging operation
US7025553B1 (en) 1998-07-28 2006-04-11 Michael D. Platt Dredging vessel and method for recovering, transporting and off loading material
DE19904958A1 (de) * 1999-02-06 2000-08-31 Ali Selimoglu System zur Reinigung von See- und Flußgründen
US7326020B2 (en) 2000-02-24 2008-02-05 Mudhen, Llc Multi-purpose vessel and method for recovering, storing and/or offloading material in a dredging operation
EP2141288B1 (fr) 2008-07-04 2011-09-14 Dredging International Asia Pacific Pte. Ltd. Procédé pour la livraison de grandes quantités de sol immergé vers une zone de récupération
WO2010116013A1 (fr) * 2009-04-07 2010-10-14 Centro De Investigaciones Submarinas, S.L. Procédé de déversement de matières de dragage en continu
ES2346127A1 (es) * 2009-04-07 2010-10-08 Centro De Ivnestigaciones Submarinas, S.L. Procedimiento de vertido de materiales de dragado en continuo.
DE102009015203A1 (de) * 2009-06-12 2010-12-16 Bolls, Thorsten Verfahren zur Sediment-Transport-Baggerung und Schleppkopfsaugbagger zur Durchführung des Verfahrens
EP2236679A3 (fr) * 2009-06-12 2013-10-23 Thorsten Bolls Procédé de dragage de transport de sédiment et drague suceuse autoporteuse destinée à l'exécution du procédé
WO2011003438A1 (fr) * 2009-07-06 2011-01-13 Damen Dredging Equipment B.V. Système de navire de dragage pour dragage en haute mer
BE1021994B1 (nl) * 2013-07-16 2016-02-02 Deme Building Materials N.V. Baggertuig
EP2966227A2 (fr) 2014-07-10 2016-01-13 Deme Building Materials N.V. Navire de dragage
EP2966227A3 (fr) * 2014-07-10 2016-03-23 Deme Building Materials N.V. Navire de dragage
RU2621212C2 (ru) * 2015-09-29 2017-06-01 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Астраханский государственный университет" Способ производства дноуглубительных работ
DE102017103437A1 (de) 2017-02-20 2018-08-23 Werner Möbius Engineering GmbH Verfahren zur Behandlung und Beseitigung von Baggergut aus einer Hafenregion
DE102017103437B4 (de) 2017-02-20 2021-10-07 Werner Möbius Engineering GmbH Verfahren zur Behandlung und Beseitigung von Baggergut aus einer Hafenregion
US10167609B1 (en) 2018-01-12 2019-01-01 Cashman Dredging & Marine Contracting Co., LLC Carouseling articulated dredge and barge
US10920398B2 (en) 2018-01-12 2021-02-16 Cashman Dredging & Marine Contracting Co., LLC Carouseling articulated dredge and barge
EP3768588A4 (fr) * 2018-03-21 2022-03-30 Cashman Dredging and Marine Contracting, Co., LLC Purgeur pour chaland

Also Published As

Publication number Publication date
NL9400168A (nl) 1995-09-01
AU1545595A (en) 1995-08-21

Similar Documents

Publication Publication Date Title
WO1995021303A1 (fr) Procede de dragage a l'aide d'une drague suceuse porteuse, et drague suceuse porteuse pour sa mise en ×uvre
US5970635A (en) Jet agitation dredging system
US3975842A (en) Method and apparatus for dredging employing a transport fluid flowing in substantially closed recirculating course
US4807373A (en) Loop circuit dredging apparatus
US3820258A (en) Apparatus and method for dredging retention transport and disposal ofdredged material
US5546682A (en) Sediment relocation machine
US7326020B2 (en) Multi-purpose vessel and method for recovering, storing and/or offloading material in a dredging operation
US5259130A (en) Floating grab installation for the recovery of sand and gravel
CA1294179C (fr) Brise-glace
WO2010000813A1 (fr) Procédé pour distribuer des quantités importantes de sol subaquatique à une zone de bonification
US2120444A (en) Apparatus for dredging
JP2007063934A (ja) 土砂輸送システム
CN219149331U (zh) 沉淀池清淤设备
US5445093A (en) Unloading facility for flexible water transporting barges
WO2014133462A1 (fr) Système de déchargement de sable et méthode associée
US4394841A (en) Vessel for recovering material
JPH04228730A (ja) 固形しゅんせつ物処理方法及びしゅんせつ方法
JPH1018345A (ja) 軟弱土による埋立工法および浚渫埋立・一貫施工システム
WO2000006838A9 (fr) Bateau-drague et technique de recuperation, de transport et de dechargement
JPH04106228A (ja) 浚渫方法
KR100505194B1 (ko) 선적된 토사의 이송 장치
CN213653566U (zh) 挖泥船吹沙填海管路结构
US6048153A (en) System, apparatus and method for loading and/or unloading a barge
JP3670063B2 (ja) 海苔洗浄方法および海苔洗浄装置
US20030000114A1 (en) Material distribution vessel and method for distributing material recovered in a dredging operation

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AM AT AU BB BG BR BY CA CH CN CZ DE DK EE ES FI GB GE HU JP KE KG KP KR KZ LK LR LT LU LV MD MG MN MW MX NL NO NZ PL PT RO RU SD SE SI SK TJ TT UA US UZ VN

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): KE MW SD SZ AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: CA