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EP2748378A1 - Divisible spud - Google Patents

Divisible spud

Info

Publication number
EP2748378A1
EP2748378A1 EP12788313.0A EP12788313A EP2748378A1 EP 2748378 A1 EP2748378 A1 EP 2748378A1 EP 12788313 A EP12788313 A EP 12788313A EP 2748378 A1 EP2748378 A1 EP 2748378A1
Authority
EP
European Patent Office
Prior art keywords
spud
vessel according
sections
floating body
divisible
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Withdrawn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
EP12788313.0A
Other languages
German (de)
French (fr)
Inventor
Mark VAN DE ZANDE
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.)
IHC Holland lE BV
Original Assignee
IHC Holland lE 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 IHC Holland lE BV filed Critical IHC Holland lE BV
Publication of EP2748378A1 publication Critical patent/EP2748378A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/24—Anchors
    • B63B21/26—Anchors securing to bed
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22—Piles
    • E02D5/54—Piles with prefabricated supports or anchoring parts; Anchoring piles
    • 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
    • E02F3/8833—Floating installations
    • E02F3/8841—Floating installations wherein at least a part of the soil-shifting equipment is mounted on a ladder or boom
    • 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
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/22—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using hooks or like elements

Definitions

  • an excavating device having a base member, an extendable arm member which at one end thereof is coupled with the base member and an excavating means mounted at the other end of the extendable arm member, wherein the excavating device is rotatably coupled with the floating body for rotation of the excavating device in an excavator rotating area,
  • an anchoring system coupled with the vessel for anchoring the floating body and having a number of spuds for engaging with the bottom at the location to be excavated.
  • Such a vessel is known.
  • the spuds are lowered onto the bottom before the excavating work is carried out. Subsequently, the spuds are lifted and the vessel is positioned at the next location for continuing the process of excavating.
  • the spuds extend to a greater or lesser degree above the floating body. This leads to problems while carrying out deck activities. In particular, the movements of the excavating device may be impaired by the upwardly protruding parts of the spuds.
  • US5311682 A relates to a floating platform provided with a dredging apparatus using a clamshell attached to a rigid boom to dig and remove material.
  • the position of the floating platform is controlled by spuds. These spuds limit arrangement and movement of the dredging apparatus with respect to the floating platform.
  • DE 1484 718 relates to a dredging vessel of the type in which a crane is mounted on the vessel, which is provided with one or more spud piles to retain the dredging vessel in its place.
  • the invention aims at providing a solution for the above mentioned problem.
  • Said aim is achieved in that at least one of the number of spuds is a divisible spud comprises a plurality of spud sections coupled end to end in series.
  • the divisible spud or spuds each consist of at least two spud sections which together form the spud.
  • the total length of the spud is thus maintained, in such a way that the vessel can still be anchored in the bottom.
  • the spud is thus lowered on the bottom, and depending on the depth of the water a certain part of the spud remains extending above the floating body.
  • the extent to which the spud projects above the floating body may now be reduced.
  • the space above the floating body can be held free from obstacles, which is an advantage when carrying out activities on deck with the excavating device, or other activities such as lifting and deposing spud sections.
  • the number of spuds for engaging with the bottom at the location to be excavated must be suitable for and engage the bottom such that considerable excavating forces can be accommodated and withstand by the number of spuds.
  • coupling means are provided for uncoupling respectively coupling adjacent spud sections with respect to each other.
  • Such coupling means may be carried out in several ways; preferably, the coupling means comprise respective flanges at the facing ends of adjacent spud sections and clamping members which each encompass the respective flanges at the facing ends of adjacent spud sections for clamping the adjacent spud sections. Said flanges and clamping members are provided along a substantial portion of the circumference of the abutting spud sections.
  • the spud may be carried out with several cross sectional shapes; preferably, the spud has a rectangular or square cross section, the respective flanges and clamping members being arranged on at least two opposite sides, preferably on the four sides of the rectangle or square.
  • the coupling means may comprise alignment parts for aligning adjacent spud sections with respect to each other, such as a pin and hole alignment.
  • the spud sections may have end walls at opposite ends; in this case, the coupling means and/or the alignment parts may be associated with the end walls.
  • the possibility to dismount spud sections offers the advantage of a largely unobstructed space or area above the floating body.
  • a tilting mechanism may be provided which cooperates with a divisible spud, said tilting mechanism being carried out for tilting a spud section between an active position in alignment with the spud axis and a rest position generally transverse with respect to the spud axis.
  • the at least one divisible spud extends towards the bottom from below the excavating device.
  • the spuds are displaceable in upward and downward direction with respect to the floating body.
  • spuds which are tiltably arranged with respect to the floating body.
  • Figure 1 shows a view in perspective of the vessel according to the invention.
  • Figure 2 shows a view in perspective of the coupling area of a spud according to II of figure 1.
  • Figure 3 shows a cross-section through the coupling area of a spud.
  • Figure 4 shows a side view of a coupling member.
  • Figure 5 shows a longitudinal section through the coupling area of a spud.
  • the vessel according to the invention as shown in figure 1 consists of the floating body 1, which in the usual way is provided with accommodations 2. At one end of the floating body 1, and excavating device 3 has been positioned. Said excavation device 3 consists of the rotatable housing or member 4 and the articulated arm 5 which carries a backhoe 6. Furthermore, at said end of the vessel the spuds 7 are arranged. Although two of said spuds 7 have been shown, other numbers are possible as well. For instance, at the opposite end of the vessel two further spuds may be arranged.
  • the spuds 7 each consists of several spud sections 8 which are connected to each other in series, end to end as shown in greater detail in figures 2-5.
  • Each spud section 8 has an upper end wall 9 and a lower end wall 10, as shown in the longitudinal section of figure 5.
  • the spud sections 8 have a square cross- section (see figure 3), the four sidewalls of which each are provided with coupling means 11.
  • These coupling means 11 each comprise a series of clamping members 12 which are provided with hook shaped protrusions 13, as shown in the side view of figure 4.
  • each of the upper and lower end walls 9, 10 of the spud sections have flanges 14 respectively 15.
  • the hook shaped protrusions 13 of the clamping members 12 can each be looked around said flanges 14, 15 of the upper and lower and walls 9, 10 so as to ensure a firm interconnection of the spud sections 8, end to end.
  • the clamping members 12 are held in place by means of the strip 16 the opposite ends of which are secured to the respective spud sections 8 by means of e.g. bolt connections 17.
  • the upper and lower end walls 9, 10 comprise an alignment pin 19 in the lower end wall 10 and a corresponding alignment aperture 20 in the upper end wall 9.
  • this alignment pin 19 and alignment hold 20 ensure the proper positioning of the spud sections 8 with respect to each other, in such a way that the clamping members 12 can be properly arranged around the flanges 14, 15.
  • the subsequent spud sections 8 can be dismounted by removing the coupling means 11. Subsequently, the dismounted spud sections 8 are tilted towards a generally horizontal orientation by means of the tilting mechanisms 18. Next, the spud sections can be arranged on the deck of the floating body 1. Thus, the area above the deck of the floating body 1 remains generally free, which means that the articulated arm 5 of the excavating device 4 can be freely swung, also over the deck without being hampered by any obstacle.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Earth Drilling (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)

Abstract

A vessel comprises a floating body (1), an excavating device (3) having a base member (4), an extendable arm member (5) which at one end thereof is coupled with the base member and an excavating means (6) mounted at the other end of the extendable arm member. The excavating device (3) is rotatably coupled with the floating body (1) for rotation of the excavating device in an excavator rotating area. By means of an anchoring system coupled with the vessel for anchoring the floating body (1) and having a number of spuds (7, 8), the vessel may be anchored with respect to the bottom at the location to be excavated. At least one of the number of spuds (7) is a divisible spud comprising a plurality of spud sections (8) coupled end to end in series.

Description

Divisible spud
Background The present invention relates to a vessel comprising:
a floating body,
an excavating device having a base member, an extendable arm member which at one end thereof is coupled with the base member and an excavating means mounted at the other end of the extendable arm member, wherein the excavating device is rotatably coupled with the floating body for rotation of the excavating device in an excavator rotating area,
an anchoring system coupled with the vessel for anchoring the floating body and having a number of spuds for engaging with the bottom at the location to be excavated.
Such a vessel is known. The spuds are lowered onto the bottom before the excavating work is carried out. Subsequently, the spuds are lifted and the vessel is positioned at the next location for continuing the process of excavating. Depending on the depth of the bottom, the spuds extend to a greater or lesser degree above the floating body. This leads to problems while carrying out deck activities. In particular, the movements of the excavating device may be impaired by the upwardly protruding parts of the spuds.
US5311682 A relates to a floating platform provided with a dredging apparatus using a clamshell attached to a rigid boom to dig and remove material. The position of the floating platform is controlled by spuds. These spuds limit arrangement and movement of the dredging apparatus with respect to the floating platform.
Likewise, DE 1484 718 relates to a dredging vessel of the type in which a crane is mounted on the vessel, which is provided with one or more spud piles to retain the dredging vessel in its place. Summary of the invention
The invention aims at providing a solution for the above mentioned problem. Said aim is achieved in that at least one of the number of spuds is a divisible spud comprises a plurality of spud sections coupled end to end in series. The divisible spud or spuds each consist of at least two spud sections which together form the spud. The total length of the spud is thus maintained, in such a way that the vessel can still be anchored in the bottom. The spud is thus lowered on the bottom, and depending on the depth of the water a certain part of the spud remains extending above the floating body. However, by removing the upper spud section the extent to which the spud projects above the floating body may now be reduced. Thus, the space above the floating body can be held free from obstacles, which is an advantage when carrying out activities on deck with the excavating device, or other activities such as lifting and deposing spud sections. It will be clear that the number of spuds for engaging with the bottom at the location to be excavated must be suitable for and engage the bottom such that considerable excavating forces can be accommodated and withstand by the number of spuds.
Preferably, coupling means are provided for uncoupling respectively coupling adjacent spud sections with respect to each other. Such coupling means may be carried out in several ways; preferably, the coupling means comprise respective flanges at the facing ends of adjacent spud sections and clamping members which each encompass the respective flanges at the facing ends of adjacent spud sections for clamping the adjacent spud sections. Said flanges and clamping members are provided along a substantial portion of the circumference of the abutting spud sections.
The spud may be carried out with several cross sectional shapes; preferably, the spud has a rectangular or square cross section, the respective flanges and clamping members being arranged on at least two opposite sides, preferably on the four sides of the rectangle or square. In order to facilitate the process of connecting the spud parts onto each other, the coupling means may comprise alignment parts for aligning adjacent spud sections with respect to each other, such as a pin and hole alignment. The spud sections may have end walls at opposite ends; in this case, the coupling means and/or the alignment parts may be associated with the end walls. As mentioned before, the possibility to dismount spud sections offers the advantage of a largely unobstructed space or area above the floating body. This circumstance can be fruitfully applied in an embodiment wherein the at least one divisible spud and the excavating device are mutually arranged such that the longitudinal spud axis of the at least one divisible spud crosses or intersects the excavator rotating area.
In order to simplify the mounting/dismounting of the spud sections, a tilting mechanism may be provided which cooperates with a divisible spud, said tilting mechanism being carried out for tilting a spud section between an active position in alignment with the spud axis and a rest position generally transverse with respect to the spud axis. In use, the at least one divisible spud extends towards the bottom from below the excavating device.
Preferably, the spuds are displaceable in upward and downward direction with respect to the floating body. However, it is also possible to use spuds which are tiltably arranged with respect to the floating body.
Reference is made to the vessel having a floating body provided with divisible spuds as disclosed in DE-B- 1028902. Said prior art vessel lacks an excavating device on top of the floating body. Thus, the problem underlying the present invention, that is the obstacles as formed by the upwardly protruding studs, is not addressed in this publication. Instead, reference is made to stability problems which may arise as a result of spuds which extends to a fair degree above the floating body.
Description of the drawings The invention will be further elucidated referring to an preferred embodiment shown in the drawing wherein shown in:
Figure 1 shows a view in perspective of the vessel according to the invention. Figure 2 shows a view in perspective of the coupling area of a spud according to II of figure 1.
Figure 3 shows a cross-section through the coupling area of a spud.
Figure 4 shows a side view of a coupling member.
Figure 5 shows a longitudinal section through the coupling area of a spud. Detailed description of embodiments
The vessel according to the invention as shown in figure 1 consists of the floating body 1, which in the usual way is provided with accommodations 2. At one end of the floating body 1, and excavating device 3 has been positioned. Said excavation device 3 consists of the rotatable housing or member 4 and the articulated arm 5 which carries a backhoe 6. Furthermore, at said end of the vessel the spuds 7 are arranged. Although two of said spuds 7 have been shown, other numbers are possible as well. For instance, at the opposite end of the vessel two further spuds may be arranged.
The spuds 7 each consists of several spud sections 8 which are connected to each other in series, end to end as shown in greater detail in figures 2-5. Each spud section 8 has an upper end wall 9 and a lower end wall 10, as shown in the longitudinal section of figure 5. In the embodiment shown, the spud sections 8 have a square cross- section (see figure 3), the four sidewalls of which each are provided with coupling means 11. These coupling means 11 each comprise a series of clamping members 12 which are provided with hook shaped protrusions 13, as shown in the side view of figure 4.
Furthermore, each of the upper and lower end walls 9, 10 of the spud sections have flanges 14 respectively 15. The hook shaped protrusions 13 of the clamping members 12 can each be looked around said flanges 14, 15 of the upper and lower and walls 9, 10 so as to ensure a firm interconnection of the spud sections 8, end to end. In the mounted state, the clamping members 12 are held in place by means of the strip 16 the opposite ends of which are secured to the respective spud sections 8 by means of e.g. bolt connections 17.
The upper and lower end walls 9, 10 comprise an alignment pin 19 in the lower end wall 10 and a corresponding alignment aperture 20 in the upper end wall 9. Upon assembling the spud sections 8, this alignment pin 19 and alignment hold 20 ensure the proper positioning of the spud sections 8 with respect to each other, in such a way that the clamping members 12 can be properly arranged around the flanges 14, 15.
Upon lifting a spud 7, the subsequent spud sections 8 can be dismounted by removing the coupling means 11. Subsequently, the dismounted spud sections 8 are tilted towards a generally horizontal orientation by means of the tilting mechanisms 18. Next, the spud sections can be arranged on the deck of the floating body 1. Thus, the area above the deck of the floating body 1 remains generally free, which means that the articulated arm 5 of the excavating device 4 can be freely swung, also over the deck without being hampered by any obstacle.
It will also be obvious after the above description and drawings are included to illustrate some embodiments of the invention, and not to limit the scope of protection. Starting from this disclosure, many more embodiments will be evident to a skilled person which are within the scope of protection and the essence of this invention and which are obvious combinations of prior art techniques and the disclosure of this patent.

Claims

Claims
1. Vessel, comprising:
a floating body (1),
an excavating device (3) having a base member (4), an extendable arm member
(5) which at one end thereof is coupled with the base member and an excavating means
(6) mounted at the other end of the extendable arm member, wherein the excavating device (3) is rotatably coupled with the floating body (1) for rotation of the excavating device in an excavator rotating area,
an anchoring system coupled with the vessel for anchoring the floating body (1) and having a number of spuds (7, 8) for engaging with the bottom at the location to be excavated,
wherein at least one of the number of spuds (7) is a divisible spud comprising a plurality of spud sections (8) coupled end to end in series.
2. Vessel according to claim 1, wherein coupling means (11) are provided for uncoupling respectively coupling adjacent spud sections (8) with respect to each other.
3. Vessel according to claim 2, wherein the coupling means (11) comprise: respective flanges (14, 15) at the facing ends of adjacent spud sections (8), clamping members (12, 13) which each encompass the respective flanges (14, 15) at the facing ends of adjacent spud sections (8) for clamping the adjacent spud sections.
4. Vessel according to claim 3, wherein the flanges (14, 15) and the clamping members (12, 13) are provided along a substantial portion of the circumference of the spud sections (8).
5. Vessel according to claim 3 or 4, wherein the spud (7) has a rectangular or square cross section, the respective flanges (14, 15) and clamping (12, 13) members being arranged on the four sides of the rectangle or square.
6. Vessel according to any of claims 2-5, wherein the coupling means (11) comprise alignment parts for aligning adjacent spud sections with respect to each other, such as a pin (19) and hole (20) alignment.
7. Vessel according to claim 6, wherein the spud sections have end walls (9, 10) at opposite ends.
8. Vessel according to claim 7, wherein the coupling means (11) and/or the alignment parts (19, 20) are associated with the end walls (9, 10).
9. Vessel according to any of the preceding claims, wherein the at least one divisible spud (7, 8) and the excavating device (3) are mutually arranged such that the longitudinal spud axis of the at least one divisible spud crosses or intersects the excavator rotating area.
10. Vessel according to any of the preceding claims, wherein a tilting mechanism (18) is provided which cooperates with a divisible spud (7, 8), said tilting mechanism being carried out for tilting a spud section between an active position transverse with respect to the floating body (1) and a rest position generally parallel to the floating body (1).
11. Vessel according to any of the preceding claims, wherein the spuds are displaceable in upward and downward direction with respect to the floating body (1) 12. Vessel according to any of the preceding claims, wherein in use, the at least one divisible spud (7, 8) extends towards the bottom from below the excavating device (3).
-0-0-0-0-0-0-0-
EP12788313.0A 2011-11-08 2012-11-06 Divisible spud Withdrawn EP2748378A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2007743A NL2007743C2 (en) 2011-11-08 2011-11-08 Divisible spud.
PCT/NL2012/050777 WO2013070067A1 (en) 2011-11-08 2012-11-06 Divisible spud

Publications (1)

Publication Number Publication Date
EP2748378A1 true EP2748378A1 (en) 2014-07-02

Family

ID=47215708

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12788313.0A Withdrawn EP2748378A1 (en) 2011-11-08 2012-11-06 Divisible spud

Country Status (5)

Country Link
US (1) US20140311396A1 (en)
EP (1) EP2748378A1 (en)
CN (1) CN104040079A (en)
NL (1) NL2007743C2 (en)
WO (1) WO2013070067A1 (en)

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CN108500629B (en) * 2018-04-03 2019-03-12 中国电建集团港航建设有限公司 A kind of correction of cutter suction dredger guide pile and bracing means
CN108978760B (en) * 2018-09-27 2021-02-26 马鞍山纽盟知识产权管理服务有限公司 Dredger
CN109208667B (en) * 2018-09-27 2020-12-01 马鞍山纽盟知识产权管理服务有限公司 Auxiliary positioning pile mechanism for dredger
CN109487848B (en) * 2018-11-01 2021-04-02 马鞍山市润启新材料科技有限公司 Sand dredger
CN109208679B (en) * 2018-11-01 2021-04-20 景冲 Dredger spud system
KR102191053B1 (en) * 2020-01-10 2020-12-14 모상호 Prefab Marine Fixed Spud
CN111691489B (en) * 2020-07-17 2022-01-04 海南河道综合整治工程有限公司 Cutter-suction type dredging device convenient to rotate
CN115258051B (en) * 2022-08-30 2023-12-22 南通市华阳铝制品有限公司 Yacht positioner

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US3064370A (en) * 1960-04-29 1962-11-20 Pittsburgh Plate Glass Co Canal dredge
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US5311682A (en) * 1993-01-07 1994-05-17 Sturdivant Charles N Hybrid dredge
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Title
See references of WO2013070067A1 *

Also Published As

Publication number Publication date
US20140311396A1 (en) 2014-10-23
NL2007743C2 (en) 2013-05-13
WO2013070067A1 (en) 2013-05-16
CN104040079A (en) 2014-09-10

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