EP0668211B1 - Fall pipe - Google Patents

Fall pipe Download PDF

Info

Publication number
EP0668211B1
EP0668211B1 EP19950200266 EP95200266A EP0668211B1 EP 0668211 B1 EP0668211 B1 EP 0668211B1 EP 19950200266 EP19950200266 EP 19950200266 EP 95200266 A EP95200266 A EP 95200266A EP 0668211 B1 EP0668211 B1 EP 0668211B1
Authority
EP
European Patent Office
Prior art keywords
fall pipe
flanges
elements
pipe according
tubular element
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
Application number
EP19950200266
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0668211A1 (en
Inventor
Marcel Van Laer
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.)
Tideway BV
Original Assignee
Dredging International NV
Roda Shipping Ltd
Tideway BV
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 Dredging International NV, Roda Shipping Ltd, Tideway BV filed Critical Dredging International NV
Publication of EP0668211A1 publication Critical patent/EP0668211A1/en
Application granted granted Critical
Publication of EP0668211B1 publication Critical patent/EP0668211B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/28—Barges or lighters
    • B63B35/30—Barges or lighters self-discharging
    • B63B35/305—Barges or lighters self-discharging discharging by mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/28—Arrangement of ship-based loading or unloading equipment for cargo or passengers of chutes

Definitions

  • This invention concerns a fall pipe for dumping materials, in particular but not exclusively stones, onto a bottom situated under water.
  • Light-weight fall pipes with a specific weight as mentioned hereinabove are difficult to reinforce when they reach large lengths.
  • the invention has therefore as object to provide a new and original fall pipe, offering simultaneously the required strength and flexibility so that the stones can be dumped under good circumstances at the required place onto the bottom and at the desired depth.
  • the fall pipe according to the invention is mainly composed of a series of tubular elements piled up onto one another and supported by at least two cables, said tubular elements being arranged at both ends to fit against a corresponding tubular end of an adjacent tubular element of said series, each of said elements comprising two flanges, one of said flanges being arranged at the end of the tubular element whereas the other is at a small distance of the opposite end of the same tubular element so as to allow forming with an adjacent element an annular space wherein at least one resilient sealing ring is applied between said flanges.
  • the sealing ring or rings between both flanges provide for a waterproof sealing between two successive tubular elements so that there is no uncontrolled water inflow in the fall pipe. Such an inflow can now, if desired, occur in a controllable way at the top of the fall pipe. Of course, in this way no fine material can further escape between two successive elements in the fall pipe according to the invention.
  • the fall pipe according to the invention further also allows a limited flexion, which is required to permit the outlet of the fall pipe to be positioned correctly.
  • said flanges are provided with at least one raised edge directed towards the adjacent tubular element, with said raised edges of the flanges which are situated at two ends fitting against one another, sliding fittingly into one another.
  • the invention further relates to a tubular element for constructing a fall pipe according to the invention and which shows more particularly the characteristics as indicated in claim 12.
  • Figure 1 is a longitudinal section in the area of the connection between two tubular elements.
  • Figure 2 is a perspective view, on a smaller scale, of two elements and two cables pertaining thereto.
  • Figure 3 is a top view, on a larger scale, of a tubular element.
  • Figure 4 is a section according to line IV-IV in Figure 5 and shows a locking plate in top view.
  • Figure 5 is a section according to line V-V in Figure 4.
  • Figure 6 is a section according to line VI-VI in Figure 4.
  • Figure 7 shows schematically the lower end of the fall pipe.
  • the fall pipe shown in these figures is composed of a series of tubular, more particularly cylindrical elements 1 piled up onto one another and supported by two or possibly more cables 2. Both ends of the cylindrical elements 1 are arranged to fit against a corresponding end of an adjacent cylindrical element 1'.
  • Each cylindrical element 1 shows at its two ends a outwardly directed flange.
  • these flanges are represented as upper flange 3 and lower flange 4.
  • a resilient seal which consists in the here represented example of three rubber rings 6 which are mutually separated by steel rings 7 having a rectangular cross section.
  • the middle rubber ring 6 is caught between two steel rings 7 while the upper and the lower rubber rings 6 are each caught between a steel ring 7 and a portion of the flanges 3, respectively 4.
  • the steel rings 7 show a rectangular cross section so that the rubber rings 6 remain always in contact with the large flat side of these steel rings 7.
  • the flanges 3, 4 of a cylindrical element 1, 1' are provided with a raised edge 8, 9 directed towards the adjacent cylindrical element 1' and 1 respectively, and sliding fittingly into one another. Due to these edges 8, 9, it is easy to position the cylindrical elements 1, 1' correctly with respect to one another and a mutual displacement of these elements 1, 1' is further avoided.
  • the edges 8, 9 do not necessarily have to extend over the entire circumference of the elements 1, 1'.
  • the different cylindrical elements 1 composing this fall pipe can each form two by two an angle, as shown by Figure 1.
  • the rubber rings 6 On one side the rubber rings 6 will be compressed (at the left in Figure 1) and on the opposite side (at the right in the same figure) they will be released.
  • At least one of the raised edges 8, 9 sliding fittingly into one another shows a bevelled contact surface with the other raised edge.
  • Such bevelled contact surfaces makes sliding these edges into one another further easier.
  • the upper flanges 3 are locally supported by knee pieces 20.
  • the entire fall pipe structure is thus formed by different cylindrical elements 1, 1'. These elements are caught over the entire length of the fall pipe between two cables 2, which are more particularly fixed to the lowermost element of the fall pipe. As a result of the own weight of the different elements, these elements lie onto one another so that heavy connections between the different elements are not required.
  • each of the flanges 3 and 4 show a notch 10 at the passage of the cables 2.
  • the cables 2 are fixed in the notches 10 of the flanges 3 and 4 by making use of locking plates 11 ( Figures 2, 4, 5 and 6).
  • the locking plates 11 show an inner rounding 12 having a radius adapted to the diameter of the cables 2.
  • the locking plates 11 are provided with pins 13 which are applied in holes 14 provided in the upper flanges 3 for fixing these plates 11 onto the upper flanges 3. In this way, applying such a locking plate 11 can be done easily and quickly, after the cable 2 has been pushed in the notch 10.
  • the pins 13 are automatically blocked in the holes 14 by applying a further cylindrical element 1.
  • the locking plate 11 is more particularly blocked by the raised edge 8 of the lower flange 4 of the upper element 1.
  • the shape of this raised edge 8 in the area of the locking plate 11 is adapted to the shape of this plate 11.
  • All of the cylindrical elements 1, 1' are internally provided with a protective layer 15.
  • This layer may consist of natural or synthetic rubber or a technically equivalent material.
  • the thickness of the protective layer is nearly twice the thickness of the wall of the steel cylindrical elements 1, 1'.
  • the resilient lining layer 15 protrudes out of the cylindrical element 1 and fits resiliently against the corresponding lining layer of an adjacent element 1' whereby a bulge may be formed locally. In this way, a good connection is obtained between both elements 1, 1'.
  • the lowermost end of the fall pipe is shown in Figure 7, which end is more particularly provided with a so-called "remote operated vehicle".
  • This remote controllable unit comprises a central shute which is mounted telescopically with respect to the lowermost elements of the fall pipe.
  • the cables 17 By means of the cables 17, the heaving movements of the ship can be compensated for in such a manner that the device is situated at a constant distance from the bottom.
  • folding supporting arms 18 On the unit are provided folding supporting arms 18 for all kinds of sensors and/or cameras.
  • thrusters are provided on the unit, as already known per se.
EP19950200266 1994-02-10 1995-02-06 Fall pipe Expired - Lifetime EP0668211B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE9400158A BE1007880A6 (nl) 1994-02-10 1994-02-10 Valpijp.
BE9400158 1994-02-10

Publications (2)

Publication Number Publication Date
EP0668211A1 EP0668211A1 (en) 1995-08-23
EP0668211B1 true EP0668211B1 (en) 1998-07-29

Family

ID=3887960

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19950200266 Expired - Lifetime EP0668211B1 (en) 1994-02-10 1995-02-06 Fall pipe

Country Status (4)

Country Link
EP (1) EP0668211B1 (nl)
BE (1) BE1007880A6 (nl)
DK (1) DK0668211T3 (nl)
NO (1) NO304843B1 (nl)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2130978A2 (en) 2008-06-06 2009-12-09 Tideway B.V. Device and method for displacing ground material under water

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8628287B2 (en) 2007-08-06 2014-01-14 Itrec B.V. Fallpipe stone dumping vessel
NL2003026C2 (nl) 2009-06-15 2010-12-16 Tideway B V Buisvormig element van een valpijp, uit dergelijke elementen opgebouwde valpijp, koppeling tussen twee dergelijke buisvormige elementen, en werkwijze voor het opbouwen van de valpijp.
NL2004010C2 (nl) * 2009-12-23 2011-06-27 Ihc Holland Ie Bv Koppeling voor het losmaakbaar koppelen van buizen.
NL2005095C2 (en) * 2010-07-16 2012-01-17 Tideway B V Device for dredging soil material under water.
CN108502110B (zh) * 2018-05-11 2023-09-26 上海振华重工(集团)股份有限公司 落管抛石船

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1953006A (en) * 1931-06-16 1934-03-27 William P Norris Culvert pipe
US3926290A (en) * 1974-03-04 1975-12-16 Mitsui Shipbuilding Eng Loading chute for cargo vessel
NO140775C (no) 1977-09-30 1979-11-07 Stolt Nielsens Rederi Anordning for nedfoering av masse fra et overflatefartoey til et sted paa havbunnen
NL188762C (nl) 1979-06-08 1992-09-16 Vreeken Cornelis Vaartuig voor het onder water storten van stenen.
FR2472099A1 (fr) * 1979-12-19 1981-06-26 Hispano Suiza Sa Moyens d'assemblage de deux grosses pieces munies de brides
NL188938C (nl) 1981-05-08 1992-11-16 Oord Acz B V Van Vaartuig met inrichting voor het storten van materiaal op een onder water gelegen bodem.
DE4000654A1 (de) * 1990-01-11 1991-07-25 Schmitz Tona Tonwerke Verfahren zum auskleiden eines schornsteines und manschette zum verbinden der rohrabschnitte eines innenrohres hierfuer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2130978A2 (en) 2008-06-06 2009-12-09 Tideway B.V. Device and method for displacing ground material under water

Also Published As

Publication number Publication date
NO950479L (no) 1995-08-11
BE1007880A6 (nl) 1995-11-07
NO304843B1 (no) 1999-02-22
DK0668211T3 (da) 1999-05-03
EP0668211A1 (en) 1995-08-23
NO950479D0 (no) 1995-02-09

Similar Documents

Publication Publication Date Title
US4359167A (en) Subterranean plastic tank
US4019301A (en) Corrosion-resistant encasement for structural members
EP0668211B1 (en) Fall pipe
US4506623A (en) Non-rigid buoyant marine storage vessels for fluids
GB2066336A (en) Oscitlalable marine installation and method for its construction
WO2018093270A1 (en) Modular structures and method for construction thereof
AU2140799A (en) Inflatable swimming pool and supporting shell
EP2188454B1 (en) Water-retaining element, system and method for forming a temporary water-retaining structure
CA1185905A (en) Reinforcing member
RU2606733C2 (ru) Устройство плавучих мостков и его применение
GB2156941A (en) Flexible blanket
US3907341A (en) Irrigation pipe and coupling construction
US20110318116A1 (en) Modular vertical shoring system with cylindrical interconnected sleeves
US4261541A (en) Manhole sewer pipe opening blockout member
US5052859A (en) Seabed stabilization mattresses
EP2138393B1 (en) Modular floating system and a method of its manufacture
GB2129893A (en) Floating roof drain system
EP0056367A1 (en) An apparatus for jumping a moving object from one place to another
EP0787861A1 (en) A liner
WO1987003026A1 (en) Method of constructing a rigid structure upon the bottom of a body of water as well as lost casing for performing said method
IE43180B1 (en) Apparatus for protecting an elongate installation such as a pipeline on the floor of a body of water
GB1565323A (en) Float for the support of oil duct gas duct and the like pipes immersed in water
HU197377B (en) Shaft for civil engineering establishments
EP1482097A2 (en) Drain sealing
EP0209941B1 (en) Mooring system

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE DK GB NL SE

RBV Designated contracting states (corrected)

Designated state(s): BE DK GB NL SE

REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

17P Request for examination filed

Effective date: 19960126

17Q First examination report despatched

Effective date: 19970115

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE DK GB NL SE

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20020228

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030207

EUG Se: european patent has lapsed
BECA Be: change of holder's address

Owner name: TIDEWAY B.V.TOPAASSTRAAT 64, NL-4817 HW BREDA

Effective date: 20071127

BECH Be: change of holder

Owner name: TIDEWAY B.V.

Effective date: 20071127

NLS Nl: assignments of ep-patents

Owner name: TIDEWAY B.V.

Effective date: 20071130

Owner name: DREDGING INTERNATIONAL ASIA PASIFIC PTE LTD.

Effective date: 20071130

Owner name: DREDGING INTERNATIONAL

Effective date: 20071130

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20131217

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DK

Payment date: 20140218

Year of fee payment: 20

Ref country code: BE

Payment date: 20140116

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20140218

Year of fee payment: 20

REG Reference to a national code

Ref country code: DK

Ref legal event code: EUP

Effective date: 20150206

REG Reference to a national code

Ref country code: NL

Ref legal event code: V4

Effective date: 20150206

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20150205

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20150205