DE2300446A1 - METHOD AND DEVICE FOR DIGGING A TRENCH UNDER A SUBWATER PIPELINE - Google Patents

METHOD AND DEVICE FOR DIGGING A TRENCH UNDER A SUBWATER PIPELINE

Info

Publication number
DE2300446A1
DE2300446A1 DE19732300446 DE2300446A DE2300446A1 DE 2300446 A1 DE2300446 A1 DE 2300446A1 DE 19732300446 DE19732300446 DE 19732300446 DE 2300446 A DE2300446 A DE 2300446A DE 2300446 A1 DE2300446 A1 DE 2300446A1
Authority
DE
Germany
Prior art keywords
digging
pipeline
subwater
trench under
cutting elements
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.)
Granted
Application number
DE19732300446
Other languages
German (de)
Other versions
DE2300446C3 (en
DE2300446B2 (en
Inventor
Guido Casagrande
Giovanni Rosa
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.)
Saipem SpA
Original Assignee
Saipem SpA
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 Saipem SpA filed Critical Saipem SpA
Publication of DE2300446A1 publication Critical patent/DE2300446A1/en
Publication of DE2300446B2 publication Critical patent/DE2300446B2/en
Application granted granted Critical
Publication of DE2300446C3 publication Critical patent/DE2300446C3/en
Expired legal-status Critical Current

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
    • E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
    • E02F5/10—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables
    • E02F5/104—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables for burying conduits or cables in trenches under water
    • 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
    • E02F3/9212—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel
    • E02F3/9218—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel with jets
    • 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
    • E02F3/9212—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel
    • E02F3/9225—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel with rotating cutting elements
    • E02F3/9231—Suction wheels with axis of rotation parallel to longitudinal axis of the suction pipe
    • 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
    • E02F3/9212—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel
    • E02F3/9225—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel with rotating cutting elements
    • E02F3/9237—Suction wheels with axis of rotation in transverse direction of the longitudinal axis of the suction pipe
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
    • E02F5/10—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables
    • E02F5/104—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables for burying conduits or cables in trenches under water
    • E02F5/107—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables for burying conduits or cables in trenches under water using blowing-effect devices, e.g. jets
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
    • E02F5/10—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables
    • E02F5/104—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables for burying conduits or cables in trenches under water
    • E02F5/108—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables for burying conduits or cables in trenches under water using suction-effect devices
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
    • E02F5/10—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables
    • E02F5/104—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables for burying conduits or cables in trenches under water
    • E02F5/109—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables for burying conduits or cables in trenches under water using rotating digging elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Electric Cable Installation (AREA)

Description

Case 540 - Comraessa 5113.01Case 540 - Comraessa 5113.01

SAIPEM S.p.A., Mailand, ItalienSAIPEM S.p.A., Milan, Italy

Verfahren und Vorrichtung zum Ausheben eines GrabensMethod and device for digging a trench

unter einer Unterwasser-Rohrleitungunder an underwater pipeline

Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Ausheben eines Grabens unter einer Unterwasser-Rohrleitung auf dem Meeresboden oder dem Grund eines Sees oder Flusses.The invention relates to a method and a device for excavating a trench under an underwater pipeline the sea floor or the bottom of a lake or river.

Gegenwärtig werden Aushubverfahren verwendet, bei denen Hochdruck-Strahlrohranlagen oder waagrecht umlaufende Schneideinrichtungen verwendet werden.Excavation methods are currently used in which high-pressure jet pipe systems or horizontally rotating cutting devices can be used.

Die erfindungsgemässe Vorrichtung ist auf eine wesentliche Verbesserung der bisherigen Verfahren gerichtet.The device according to the invention is aimed at a substantial improvement the previous proceedings addressed.

309830/0A2S309830 / 0A2S

Sie macht Gebrauch bei den den Boden abtragenden Teilen von Hochdruck-Strahlrohren mit einer drehbaren Anordnung und umlaufenden Schneidelementen mit einer im wesentlichen senkrechten Achse, und weiterhin wird das Absaugen des abgegrabenen Materials durch ein Strahlrohrsystem entlang der Achse des drehbaren Schneiders durchgeführt.It makes use of the parts that remove the soil from high-pressure nozzles with a rotatable and rotating arrangement Cutting elements with a substantially vertical axis, and the suction of the excavated continues Material passed through a jet pipe system along the axis of the rotatable cutter.

Weitere Einzelheiten der Erfindung werden im folgenden anhand von beispielsweisen Ausführungsformen unter Bezugnahme auf die beigefügte Zeichnung näher erläutert werden.Further details of the invention will be described in the following on the basis of exemplary embodiments with reference to FIG attached drawing are explained in more detail.

Fig. 1 zeigt (von unten nach oben) eine Draufsicht auf die Gesamtanordnung, eine Seitenansicht des rückwärtigen Teils und eine Seitenansicht des vorderen Teils der · Vorrichtung;Fig. 1 shows (from bottom to top) a plan view of the overall arrangement, a side view of the rear Part and a side view of the front part of the device;

Fig. 2 zeigt Einzelheiten der Vorrichtung in aufgebrochener Seitenansicht.Fig. 2 shows details of the device in a broken side view.

Die beispielsweise Ausführungsform der Erfindung umfasst folgende Merkmale:The exemplary embodiment of the invention includes the following features:

a) Ein Rahmenwerk, das die gesamten Aushubeinrichtungen (el, e2, e3, e4, e5) und die Elemente (c) zum Halten der Anordnung in der Rohrachse trägt (Fig.1);a) A framework that includes all excavation equipment (el, e2, e3, e4, e5) and the elements (c) for holding the arrangement in the pipe axis (Fig.1);

b) einen Satz von beweglichen Armen (b) verschiedener Art, die die Aushubelemente tragen (Fig.1);b) a set of movable arms (b) of various types that carry the excavation elements (Fig.1);

c) einen Satz von gerichtet beweglichen und festliegenden Armen (ο)"(Fig.1);c) a set of directionally movable and fixed arms (ο) "(Fig.1);

d) einen Satz von Antriebsmotoreinheiten (d) zum Antreiben von drehbaren, mechanischen Schneidelementen (e) (Fig.2), die durch ein auf einem trägenden Wasserfahrzeug angeordnetes Antriebssystem versorgt werden;d) a set of drive motor units (d) for driving of rotatable, mechanical cutting elements (e) (Fig.2), which are arranged by a mounted on a supporting watercraft Drive system are supplied;

309830/042&309830/042 &

2300U62300U6

e) einen Satz von drehbaren, mechanischen Schneidelementen verschiedener Grosse, die eine Welle (el) zum Absaugen des ausgegrabenen Materials, Schneidblätter (e2) aus versehleiss- £estern Spezialstahl, eine die Blätter tragende Anordnung (e3) und einen Satz von Hochdruckdüsen (e4) hinter diesen Blättern zum Freihalten dieser Blätter umfassen. Diese Düsen werden durch ein drehbares, hydraulisches System (e5) versorgt, das über flexible Leitungen mit einer Pumpe auf einem tragenden Wasserfahrzeug verbunden ist (Fig.2);e) a set of rotatable mechanical cutting elements of different sizes, comprising a shaft (el) for extracting the excavated material, cutting blades (e2) from versehleiss- £ esters of special steel, an the leaves bearing assembly (e3) and a set of high-pressure nozzles (e4 ) behind these sheets to keep these sheets clear. These nozzles are supplied by a rotatable hydraulic system (e5) which is connected via flexible lines to a pump on a supporting watercraft (Fig. 2);

f) ein Saugsystem für das ausgegrabene Material, das durch einen Satz von Auswerfern gebildet wird, die mit den unter e) genannten Punkten verbunden sind (Fig.2);f) a suction system for the excavated material, constituted by a set of ejectors similar to those mentioned under e) Points are connected (Fig.2);

g) eine Einrichtung zum Festlegen der Anordnung, die durch Seile und eine Winde auf einem geeigneten tragenden Wasserfahrzeug gebildet wird.g) a device for establishing the arrangement by means of ropes and a winch on a suitable load-bearing vessel is formed.

309830/042S309830 / 042S

Claims (1)

PatentanspruchClaim Vorrichtung zum Ausheben eines Grabens zum Verlegen von Unterwasser-Rohrleitungen auf dem Meeresboden oder dem Grund eines Sees oder Flusses, gekennzeichnet durch umlaufende Schneidelemente, die mit einem Hochdruck-Strahlsystem zum Sauberhalten der Elemente versehen sind, und ein Absaugsystem zum Entfernen des abgegrabenen Materials mit Hilfe von Auswerfern und in der Achse der Schneidelemente zum Entfernen des Materials unter Druck.Device for digging a trench for laying underwater pipelines on the seabed or the bottom of a lake or river, indicated by rotating cutting elements, which are provided with a high-pressure jet system to keep the elements clean, and a Suction system for removing the excavated material with the help of ejectors and in the axis of the cutting elements for removal of the material under pressure. 309830/G42b309830 / G42b LeerseiteBlank page
DE19732300446 1972-01-14 1973-01-05 Device for digging a trench for laying underwater pipelines Expired DE2300446C3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1937572A IT946582B (en) 1972-01-14 1972-01-14 DEVICE FOR EXCAVING A TRIN CEA UNDER A SUBMERSIBLE PIPE AND RELEVANT IMPLEMENTING METHOD
IT1937572 1972-01-14

Publications (3)

Publication Number Publication Date
DE2300446A1 true DE2300446A1 (en) 1973-07-26
DE2300446B2 DE2300446B2 (en) 1975-11-27
DE2300446C3 DE2300446C3 (en) 1976-07-15

Family

ID=

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2930168A1 (en) * 1978-07-31 1980-02-21 Nederlandse Offshore Co DEVICE FOR DIGGING A CUT UNDER A PIPELINE ON THE SEA BASE
EP3543408A1 (en) * 2018-03-21 2019-09-25 BAUER Spezialtiefbau GmbH Slurry wall mill and method for creating a milled slit in the ground

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2930168A1 (en) * 1978-07-31 1980-02-21 Nederlandse Offshore Co DEVICE FOR DIGGING A CUT UNDER A PIPELINE ON THE SEA BASE
EP3543408A1 (en) * 2018-03-21 2019-09-25 BAUER Spezialtiefbau GmbH Slurry wall mill and method for creating a milled slit in the ground
WO2019179770A1 (en) * 2018-03-21 2019-09-26 Bauer Spezialtiefbau Gmbh Trench cutter and method for producing a trench in the ground
CN112154237A (en) * 2018-03-21 2020-12-29 包尔特殊基础工程有限公司 Trench wall cutter and method for producing a cutting trench in soil
US11236480B2 (en) 2018-03-21 2022-02-01 Bauer Spezialtiefbau Gmbh Trench cutter and method for producing a cut trench in the soil

Also Published As

Publication number Publication date
AU471596B2 (en) 1974-06-27
FR2167550B1 (en) 1975-03-28
IT946582B (en) 1973-05-21
ES410580A1 (en) 1975-12-01
NL7907100A (en) 1980-03-31
AU5037772A (en) 1974-06-27
NL161534C (en) 1980-02-15
GB1399802A (en) 1975-07-02
NL7300436A (en) 1973-07-17
NL161534B (en) 1979-09-17
DE2300446B2 (en) 1975-11-27
FR2167550A1 (en) 1973-08-24

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
E77 Valid patent as to the heymanns-index 1977
8339 Ceased/non-payment of the annual fee