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US3389564A - Method and device for installation of steel pipe below the bottom of a body of water - Google Patents

Method and device for installation of steel pipe below the bottom of a body of water Download PDF

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Publication number
US3389564A
US3389564A US508968A US50896865A US3389564A US 3389564 A US3389564 A US 3389564A US 508968 A US508968 A US 508968A US 50896865 A US50896865 A US 50896865A US 3389564 A US3389564 A US 3389564A
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United States
Prior art keywords
water
pipe
plastic
steel
pipelaying
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Expired - Lifetime
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US508968A
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English (en)
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Harmstorf Rudolf
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
    • F16L1/12—Laying or reclaiming pipes on or under water
    • F16L1/20—Accessories therefor, e.g. floats or weights
    • F16L1/202—Accessories therefor, e.g. floats or weights fixed on or to vessels
    • 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
    • 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
    • E02F5/106—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 ploughs, coulters, rippers

Definitions

  • the invention pertains to the installation of steel pipe below the bottom of a body of water wherein the steel pipe is inserted into plastic pipe flush embedded in position, and the steel pipe is forwardly fed into the plastic pipe at a rate equal to the forward motion of the flushing apparatus wherein the forward terminal end Iof the steel pipe is maintained adjacent the ushing apparatus to aid in its guidance.
  • Plastic pipes are not suitable for a variety of applications, e.g. for the purpose of conveying gaseous or liquid fuels which, because of their high pressure or aggressiveness to plastics, must be handled in steel conduits now as before. In these and similar instances it has previously been necessary because of the bending characteristics of steel pipe to adopt conventional inverted siphon methods for steel pipe installation which involve substantial excavation, closed sheeting on the banks and similar work to be performed.
  • the invention suggests a method for installing steel pipes below the bottom of a watercourse, especially of a canal or a river, wherein the problem involved is being solved substantially in that a plastic pipe is water-jetted into the watercourse bottom in a manner known per se by means of a water-jetting setup and that simultaneously therewith a steel pipe inserted into the plastic pipe from one bank of the watercourse up to the water-jetting setup r is advanced as plastic pipe installation progresses.
  • the steel pipe inserted into the plastic piping up to the waterjetting apparatus serves as a guide and solely insures that said plastic pipe, while it is being jetted, embeds in the bottom of the watercourse at bending radii as required.
  • This method according to the invention permits the forces produced within range of curved sections between the water-jetting equipment and the steel pipe end adjoining the same to be utilized for steering or controlling the pipe-laying direction.
  • the invention also offers the particular advantage that the water-jetting apparatus also, can be. guided by the steel pipe terminating therein, it being a further feature of the invention that the pipe-laying direction can so be controlled that the forces between said 65 water-jctting means and the steel pipe are maintained below predetermined limits.
  • said water-jetting method of pipe installation can be adopted also within the bank zones of the planned pipe 70 route in that the water-jetting apparatus is so guided in a positive manner within range of said bank sections of the route that the latter is perfectly and reliably obtained.
  • the invention provides for this purpose that prior to commencement of installation work the starting end of the plastic pipes is fixed or clamped in position in a footing or base which is stationarily disposed on one bank of the watercourse and which is in alignment with the steel pipe advancing means arranged there. In this way an invariable mutual aligning and guiding action between plastic pipe and steel pipe results.
  • the basic object of the invention is to provide a system wherein steel pipe may be readily located below the bottom of a body of water by the use of liushing apparatus.
  • the invention proposes a device comprising a water-jetting apparatus for at least one plastic pipe which can be atta-ched to and controlled from the pipelaying vessel, said device being characterized by a stationary runway extending across lone bank zone of the watercourse in pipelaying direction for a pipelaying trolley capable of travelling substantially parallel to said direction of pipelaying and provided with fastening means for the water-jetting unit, and by an advancing means for steel pipes stationarily arranged ahead of the landward end of the runway, i.e. for steel pipes having an outer l diameter that is smaller than the inner diameter of the plastic pipes.
  • the stationary arrangement of runway and advancing means ensures that the intended pipe route is also accurately obtained within bank range.
  • the fastening means for the water-jetting unit can also be arranged in a vertically sliding arrangement on the pipelaying trolley and that power actuated positioners are provided for shifting said fastening means.
  • This design offers the advantage that the runway need not be installed accurately in height since exact height control can be effected by means of said positioners or adjusting means.
  • the invention permits for any and all advantages of the prior-known water-jetting method for plastic pipe installation to be also utilized for installation of steel pipes and further to provide improved corrosion protection to the steel pipes as installed.
  • the present invention moreover allows for steel pipe installation without any undesirable excessive straining or stressing of the steel pipe in contrast to conventional excavating-plus-laying methods.
  • steel pipes installed in accordance with this invention ca be Withdrawn from the plastic pipe and replaced with new steel pipes whenver required without such replacement operation requiring repeat iiushing in the river bed.
  • FIG. l shows the devices according to the invention as installed on one bank in the initial phase of the pipelaying operation
  • FIG. 2 shows the pipelaying vessel and the water-jetting unit as it is being mounted upon the vessel
  • FIG. 3 illustrates the pipelaying vessel including the water-jetting device while crossing the watercourse
  • FIG. 4 shows how the water-jetting unit is being transferred to a runway on the opposite bank
  • FIG. 5 is a side view according to FIG. 1 of the pipelaying trolley and of the trolley-connected components, drawn to somewhat enlarged scale,
  • FIG. 6 is an illustration of the pipelaying trolley as seen to the direction of arrow A in FIG. 5,
  • FIG. 7 is an illustration of the pipelaying trolley as viewed toward arrow B in FIG. 5, and
  • FIG. 8 shows details of the pressing platform for advancing the steel pipes.
  • the embodiment as illustrated in the drawings is for installation of several plastic pipes simultaneously with inserted steel piping.
  • several steel pipes 4 of a specific length determined by pipelaying speed are maintained in position on roller blocks 12 at the starting end of a pipelaying route 15 which has been carefully surveyed and accurately predetermined prior to commencement of the pipelaying operation.
  • Steel pipes can be welded together locally on the job using a plurality of pipe lengths, and provided with protective coating.
  • Steel pipes 4 are passed via a pressing platform 11 which is illustrated in outline only in FIG. 1, to enter the plastic pipes 5 the leading ends of which are fixed in position in a concrete base in alignment with the steel pipes capable of being advanced from the pressing platfonn.
  • the diameter of the plastic pipes 5 is somewhat larger, for instance 5 cm., than the diameter of the steel pipes 4.
  • Plastic pipes 5 may be up to about 70 cm. in diameter.
  • a runway 6 on piles 8 is provided between pressing platform 11 and the watercourse indicated on the right in FIG. 1, said runway 6 to guide and give support to a pipelaying trolley 7 on which the water-jetting unit 3 known as such is arranged to permit adjustment in vertical plane, pivotal adjustment about a horizontal axis in vertical relation to the direction of travel, and locking in position.
  • Piles 8 which may be steel sections, for instance, and may be disposed at a distance of 4 to 5 m., are founded so deep that stability and rigidity of piles are maintained and safeguarded despite the fact that the bottom or bed would be loosened by the water-jetting unit. Plastic pipes 5 are continuously fed to the water-jetting unit from above.
  • the required jetting water is supplied to the water-jetting unit 3 in a manner known per se and not in detail described herein so that plastic pipes 5 are water-jetted into the soil or ground as known and the water-jetting unit 3 can be moved or drawn toward said watercourse.
  • the water-jetting unit 3 is so arranged on the pipelaying trolley 7 as to allow adjustments in vertical plane, runway 6 need not be installed to accurate height: exact adaptation of the water-jetting unit 3 to the predetermined run of the pipelaying route can be obtained by control of said level adjusting gear.
  • steel pipes 4 are maintained advanced from the pressing platform 11 such their ends 1 are accommodated in base 2 of the water-jetting unit 3.
  • FIG. 2 it can be seen how in the next phase of the pipelaying operation the water-jetting unit 3 has just been taken over by the pipelaying vessel 13 and the loading gear 16 thereof. Installation then proceeds in the manner as known for plastic pipes, though simultaneously with this operation the leading ends 1 of steel pipes 4 are always advanced by means of the pressing platform up to the base 2 of the waterjetting unit 3. This ensures that said water-jetting unit 3 will not make any route deviations of such small radii during the jetting operation as steel pipe 4 could not follow without creating excessive stress or strain. In other words: the water-jetting unit 3 is being guided by the advancing steel pipes 4.
  • Anticorrosion agents may be added to said liquid so that particularly etlicient protection is afforded to the steel pipe inserted in the plastic piping. Also, depending on pipelaying conditions and curves on the route, the steel pipe may be ooded and emptied again at option, in order to obtain a negative or a positive uplift-especially in the leading section 1 of the steel pipe.
  • the water-jetting unit 3 is transferred, as shown in FIG. 4, from the pipelaying vessel 13 to a runway 206 which is substantially identical in design with the runway 6 illustrated in FIG. 1 and which is likewise provided with a pipelaying trolley, as at 207, which may be identical with pipelaying trolley 7 according to FIG. 1.
  • Runway 206, as is also runway 6, is supported on piles 203 which penetrate so deep into the ground that their stability and rigidity is not affected by the water-jetting operation taking place therebetween. Installation finally terminates in a terminal shaft as shown on the right of FIG. 4.
  • a pull rope 20 may be secured to head 1 of steel pipe 4 which would permit further pullingthrough of the steel pipes after pipelaying has been completed.
  • FIG. 5 shows some details of the pipelaying trolley 7 according to this invention and of the fastening means of water-jetting unit 3 pivotably arranged thereon.
  • FIGS. 6 and 7 show said pipelaying trolley from different directions of view.
  • the pipelaying trolley 7 as such is guided by means of rollers 42 on a runway rail 43 on all sides, said runway rail 43 forming one part of said runway 6.
  • the waterjetting unit 3 is by fastening means 2S and 26 attached to a supporting arrangement 27 which forms one part of an adjusting gear 9 capable of pivoting the water-jetting unit about a horizontal axis of rotation 24 and of shifting said unit in perpendicular relation to said axis.
  • the actuating means to effect said shifting motion is provided in the form of a hydraulic cylinder 22 having its one end 29 firmly connected to the pipelaying trolley 7 via a girder member and its other end 28 to the water-jetting unit 3 via fastening means 26.
  • Fastening means 26 is secured to a second girder element same as fastening means 25, said second girder element forming a sliding connection along with the rst girder which is connected to the end of positioner 22. Accordingly, the second girder with fastening means 25 connected thereto by means of bolts 36 is capable of being shifted on the first girder element upon actuation of and in response to positioner 22.
  • the first girder means is connected with a curved-segment arresting or locking device 23 which can be locked in position on the far-end of pipelaying trolley 7 by means of a pin 30 thus that the entire adjusting gear 9 including the water-jettin g unit 3 thereto attached can be pivoted about the axis of rotation 24 and locked in any desired position to which swung by means of bolt 30.
  • the pivoting motion is effected mechanically via cables (not shown).
  • the plastic pipe 5 is fixed in position in a concrete foundation or base 10 located on the starting-side bank.
  • This concrete footing 10 may, as shown in FIG. 8, be part of a pressing platform 11 from which steel pipes 4 can be advanced.
  • Pressing platform 11 comprises a pressing lane 106 well in alignment with the tied-in plastic pipes 5 with an advancing bogie 1 07 positively arranged thereon.
  • This advancing bogie is provided with gripper means suitable for seizing the steel pipes, in this instance composed of sev- ⁇ eral clamping sleeves 34 with fixing bolts 35.
  • the lower half-shells of said clamping sleeves are integrally provided on advancing bogie 107. After steel pipes 4 have been introduced into plastic pipes 5 through the open clamping sleeves 34, said clamping sleeves are tightened up by means of the fixing bolts 35 as provided.
  • a powered pusher means comprising two hydraulic cylinders 31 is disposed between advancing bogie 107 and a connecting member 32 firmly connected to the pressing lane or track 106: said powered pusher means act to advance bogie 107 and thus also the steel pipes 4 in rm connection therewith toward the plastic pipe.
  • Connecting member 32 may be secured in optional locations 41 along the pressing lane or track 106 as the rate of advance may require. The distance between these locations 41 is not more than equal to the stroke of hydraulic cylinders 31. Hence it is not necessary after each advance of hydraulic cylinders 31 to loosen bolts 35 and to displace the pipe clamping sleeves 34 on steel pipes 4.
  • buttstaps 32 on pressing lane or track 106 have to be shifted by a distance equal to one length between two holding or fixing locations 41 each time. Only after a total advance stroke of the steel pipes which corresponds to the sum of all distances between said holding locations 41 will it be necessary to loosen clamping sleeves 34 and retighten them in position on steel pipes 4 in a farther-back location.
  • One pipe guiding block 33 is attached at each end of the pressing lane or track 106. Said guide blocks are provided with guide rollers to positively guide the steel pipes with a minimum of friction.
  • a hydraulic pump schematically outlined as at 37 in FIG. 8 is connected by means of hydraulic fluid hoses and control devices (not shown) to hydraulic cylinder 31.
  • the pressure water required for advance through the bank zone is supplied to the water-jetting apparatus 3 from the pipe-laying vessel 13 stationed at the water-side end of runway 6.
  • the traction forces required to pull the water-jetting unit 3 are exerted by the Winches 14 of the pipelaying vessel 13.
  • steel pipes 4 are pushed to follow said jetting unit 3 at a rate equal to pipelaying speed. While the water-jetting unit 3 is being advanced it is continuously being kept to the depth required to obtain a predetermined route 15, by the hydraulic means installed in pipelaying trolley 6.
  • a system for installing a steel pipe lbelow the bottom of a river, a canal or the like comprising, in combination,
  • feeding means for inserting the forward terminal of said steel Apipe into said Iplastic pipe and for moving the terminal of said steel pi-pe forwardly through said plastic pipe Ifrom said stationary gripping means to said flushing means and for maintaining the terminal of said steel pipe adjacent said flushing means as said flushing means moves forwardly laying addi tional lengths of the plastic pipe.
  • a system for installing a plurality of steel pipes below the bottom of a river, a canal or the like comprising, in combination,
  • feeding means for inserting the 4forward terminal of each steel pipe into any one -of said plastic pipes and for moving the terminals of said steel pipes forwardly through said plastic pipes from said stationary gripping means to said fiushing means, wherein the forward feeding rate of the steel pipes substantially corresponds to the ⁇ forward movement of the fiushing means, such, that the forward terminal ends of the steel pipes moving through the plastic pipes terminate within the flushing means, thereby additionally guiding the flushing means by exerting a 7 guiding force thereto, said guiding force resulting from the stress exerted by curved sections of the steel pipes between the ilushing means and the gripping means, and
  • controlling means for controlling the position of the flushing means with respect to ground along the predetermined path of travel of the flushing means (such as to maintain said guiding force ⁇ below a predetermined level).
  • a system according to claim 7, comprising a further stationary guiding runway extending across the opposite bank Zone of the river in a predetermined path.
  • a system according to claim 7, means mounting said controlling means on said trolley for movement of the rilushing means upwardly and downwardly ⁇ in a verti- -cal direction, ⁇ and including power means for moving said ushing means mounted on said trolley.
  • said trolley comprises a structure pivotally arranged on a horizontal axis extending vertically to said predetermined path, further comprising locking means to lock said structure in a predetermined position.
  • the method of installing metallic pipe below the bottom of a body of water wherein the metallic pipe is inserted within plastic pipe ilush imbedded below the bottom of t-he body of water by ushing apparatus comprising the steps of fixing an end of plastic pipe relative to the body 0f water, simultaneously feeding and moving the plastic pipe through a ⁇ forwardly moving flushing apparatus and simultaneously yflush imbedding the plastic pipe below the bottom of the body rof water and initially locating the forward terminal end of the metallic pipe within the plastic pipe ⁇ adjacent the ilushing apparatus and then simultaneously feeding the metallic pipe into the fixed end of the plastic pipe in a forward direction at -a rate equal to the ⁇ forward movement of the i-ushing apparatus whereby the forward terminal end of the metallic pipe is maintained adjacent the flushing apparatus and the metallic pipe laids -in guiding the flushing apparatus.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
  • Ship Loading And Unloading (AREA)
US508968A 1965-01-04 1965-11-22 Method and device for installation of steel pipe below the bottom of a body of water Expired - Lifetime US3389564A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH54754A DE1262697B (de) 1965-01-04 1965-01-04 Verfahren und Vorrichtung zum Verlegen von Rohrleitungen unter die Sohle eines Gewaessers, insbesondere eines Kanals oder Flusses

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US3389564A true US3389564A (en) 1968-06-25

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US508968A Expired - Lifetime US3389564A (en) 1965-01-04 1965-11-22 Method and device for installation of steel pipe below the bottom of a body of water

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US (1) US3389564A (de)
BE (1) BE672967A (de)
DE (1) DE1262697B (de)
FR (1) FR1461735A (de)
NL (2) NL6511621A (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE467070B (sv) * 1990-01-24 1992-05-18 Pavel Cech Anordning vid termoelektrisk kylare/vaermare
BE1011822A3 (nl) * 1996-12-18 2000-02-01 Dredging Int Inrichting voor het in een te consolideren en te draineren slibmassa aanbrengen van een horizontaal net van draineerbuizen.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3136133A (en) * 1959-12-30 1964-06-09 Perret Georges Laying down of immersed pipes
US3181302A (en) * 1959-08-28 1965-05-04 William R Lindsay Pipe splitier and spreader
US3214921A (en) * 1961-12-07 1965-11-02 Shell Oil Co Pipe laying apparatus
US3222876A (en) * 1962-08-22 1965-12-14 Harmstorf Rudolf Joachim System and apparatus to place flexible pipes and cables under ground below water
US3273346A (en) * 1961-03-21 1966-09-20 Electricite De France Positioning of submarine tubes

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1848948U (de) * 1961-03-04 1962-03-29 Rudolf Harmstorf Fa Vorrichtung zum einbetten einer leitung, eines kabels od. dgl. unter die gelaende- oder gewaessersohle.
FR1357553A (fr) * 1963-05-31 1964-04-03 Pipeline multitube

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3181302A (en) * 1959-08-28 1965-05-04 William R Lindsay Pipe splitier and spreader
US3136133A (en) * 1959-12-30 1964-06-09 Perret Georges Laying down of immersed pipes
US3273346A (en) * 1961-03-21 1966-09-20 Electricite De France Positioning of submarine tubes
US3214921A (en) * 1961-12-07 1965-11-02 Shell Oil Co Pipe laying apparatus
US3222876A (en) * 1962-08-22 1965-12-14 Harmstorf Rudolf Joachim System and apparatus to place flexible pipes and cables under ground below water

Also Published As

Publication number Publication date
FR1461735A (fr) 1966-02-25
BE672967A (de) 1966-03-16
NL134653C (de)
DE1262697B (de) 1968-03-07
NL6511621A (de) 1966-07-05

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