CA1174990A - Vessel - Google Patents
VesselInfo
- Publication number
- CA1174990A CA1174990A CA000402513A CA402513A CA1174990A CA 1174990 A CA1174990 A CA 1174990A CA 000402513 A CA000402513 A CA 000402513A CA 402513 A CA402513 A CA 402513A CA 1174990 A CA1174990 A CA 1174990A
- Authority
- CA
- Canada
- Prior art keywords
- hollow member
- vessel
- hollow
- bunker
- dumping
- 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
Links
- 239000000463 material Substances 0.000 claims abstract description 33
- 239000004575 stone Substances 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 241000534944 Thia Species 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 208000032826 Ring chromosome 3 syndrome Diseases 0.000 description 1
- 241000364027 Sinoe Species 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- KRTSDMXIXPKRQR-AATRIKPKSA-N monocrotophos Chemical compound CNC(=O)\C=C(/C)OP(=O)(OC)OC KRTSDMXIXPKRQR-AATRIKPKSA-N 0.000 description 1
- 235000002020 sage Nutrition 0.000 description 1
Classifications
-
- 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
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/10—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements not embedded in the wall
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/10—Placing gravel or light material under water inasmuch as not provided for elsewhere
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Ocean & Marine Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Transportation (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Combustion & Propulsion (AREA)
- Civil Engineering (AREA)
- Underground Or Underwater Handling Of Building Materials (AREA)
- Ship Loading And Unloading (AREA)
- Paper (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
ABSTRACT
In order to permit material such as stones, for example, to be dumped on subaqueous ground from a vessel, the vessel is provided with a hollow member of flexible, water-pervious material through which the material may be dumped.
In order to permit material such as stones, for example, to be dumped on subaqueous ground from a vessel, the vessel is provided with a hollow member of flexible, water-pervious material through which the material may be dumped.
Description
- ~174990 Title: Yeeeel.
The inventlon relate~ to a vessel comprising a hollow member hanging down from the under3ids of the ve~el intendad to ~hed through it material on the subaqueous ground.
In many caee~ it i~ dasirRble to pour material, for e~ample, stonea at given pla¢e~ of a subaqueous ground to protect the ground and/or objects such as pipelines and the like deposited on the ground.
AP a matter of courae it i9 de~irable to a¢quire a maYimum effect by a minimum amount of dumping material, which can, of course, ohly be achieved when the dumping material i9 poured aa accurately a~ pos~ible at the place concerned.
For dumping the material there are ~ometimes used vessels which permit of gradually pushinR the material o~f the deck of the vessel or vessel~ having a dividable structure ~o that the cargo of the vessel can be poured out by opening the vessel. Su¢h methods may yield satisfactory reaults at deptha which are not too large, but in the case of greater depth~ undeslrable ~pread of the dumping material on the ground ~urface will often occur. In order to eliminate thia drawbaok it has been proposed, in the case of greater deptha, to use ves~els provided witb rigld pipes, Howe~es, ~everal disadvantages aro inherent to the use of a veasel equipped with ~uch a rigid pipe,Since a veasel equipped with auch a pipe i~ partioularly intended to ahed dumping material at a greater depth such a pipe must have u great length.
Thia requirea a relatively heavy and compli¢ated devi¢e for moving the pipe up and down in its dire¢tion of length, sinoe it will frequently not be acceptable and with regard to the water gauge often not be poaaible to leave the pipe projecting from the ve~sel'o bottom during the di~placement of the vesael from one location to another.
., ' .
The inventlon relate~ to a vessel comprising a hollow member hanging down from the under3ids of the ve~el intendad to ~hed through it material on the subaqueous ground.
In many caee~ it i~ dasirRble to pour material, for e~ample, stonea at given pla¢e~ of a subaqueous ground to protect the ground and/or objects such as pipelines and the like deposited on the ground.
AP a matter of courae it i9 de~irable to a¢quire a maYimum effect by a minimum amount of dumping material, which can, of course, ohly be achieved when the dumping material i9 poured aa accurately a~ pos~ible at the place concerned.
For dumping the material there are ~ometimes used vessels which permit of gradually pushinR the material o~f the deck of the vessel or vessel~ having a dividable structure ~o that the cargo of the vessel can be poured out by opening the vessel. Su¢h methods may yield satisfactory reaults at deptha which are not too large, but in the case of greater depth~ undeslrable ~pread of the dumping material on the ground ~urface will often occur. In order to eliminate thia drawbaok it has been proposed, in the case of greater deptha, to use ves~els provided witb rigld pipes, Howe~es, ~everal disadvantages aro inherent to the use of a veasel equipped with ~uch a rigid pipe,Since a veasel equipped with auch a pipe i~ partioularly intended to ahed dumping material at a greater depth such a pipe must have u great length.
Thia requirea a relatively heavy and compli¢ated devi¢e for moving the pipe up and down in its dire¢tion of length, sinoe it will frequently not be acceptable and with regard to the water gauge often not be poaaible to leave the pipe projecting from the ve~sel'o bottom during the di~placement of the vesael from one location to another.
., ' .
- 2 _ ~ 17 4g9 0 Be~ide~, such a pipe hAving a olos~d wall meets heavy re~i~tance in the water ~o that it will be diffioult to maintain the ve~el at the place concerned, when the mat~ial i~ being dumped, or to displace it aocur~tely along the intended path, Moreover, all efforts exe~ed on ths pipe have to be ab~orbed by ths fa~tening ~truo-ture between the veqsel and the pipe, which requires a very eturdy con-~truction. The movements of the ship are, in addibion, transferred to the pipe, which may produce undesirably heavy forces in the ~y~tem a~ well as undeJirable di~pl~cements oE the lower end of the pipe.
Aocording to the invention the hollow pipe i8 msde from flexible, water-perviouJ material.
In practice it ha~ been found that by uoing suoh ~ hollow member of fle~ible, water-pervious material the disadvantage~ inherent in the above-de~cribed uses of the pipe can be avoided.
The force~ transferred through the hollow ~ember to the ~hip may thus be relatively small, ~in¢e the wall of the hollow member is pervioua to water. Moreover, the hollow member can be readily hauled up or lowered, ~ince it i~ made from fle~ible material and can, thereEore, bs folded, ~o to say, in the Eorm oE bellows. By correct con~truction of bhe flexible member it can be ensured that during dumping of the mate-rial the ship~s movement~ are appreciably damped along the length of the hollow member 80 that the u~u~l movement~ oE the ship are ~ubstantially not transferred to the lower end of the hollow member. As a result, the lower end of the hollow member ¢an be brought nearer the ground surface or the ob~ect to be protected w~thout the risk of contact betweon the lower end of the hollow member and the ground or the obJect concerned respectively, which would give rise to damage of the hollow member and/or of the ob~ect to be protected.
The invention will now be described more fully wlth reference to ~n smbodiment of a conetruotion accordi~ to the invention shown schematically in the accompsnying drawing.
Fig. 1 schematically shows part o~ a ship with a bunker placed on it, with which communioates the top end of a hollow member.
Fig, 2 show~ on an enlarged scale part of the hollow me~ber.
Fig, 3 i~ a ~ectionu1 viow of the ~ember of Fig. 2 ta~en on the li~e lII-III in ~ig. 2.
Fig, 4 is an elevational view of the lower end of the hollow member.
Fig. 5 is a bottom view of the part of Pig. 4.
Fig, 6 is a repre~entation like Flg. 1, the bunker being moved into an elevated position and the hollow ember being partly drawn up.
Fig. 7 is a representation corresponding to Fig. 6, the hollow member being completely drawn up.
Fig. 1 eohematically ehows part Or a ship's hull 1, which compri~ee a main deok 2 snd a lower eur~aoe 3. In tho ~hip~ hull 1~
arranBed a vertioal pipe 4. Above the plpe le arrangod a bunker 5, which in the poeition ehown in ~ig. 1 bearo on the main deok 2 by meane of a bunker eupporting frame 6. With the bunker are coupled a few setting rams 7 e~tendin6 vertioslly upwards, wlth the aid of whioh the bunker ie displaceable in a direction of helght, as will be e~plained more fully hereinafter.
On the main deck 2 i~ arranged a crane (not shown) which may be dieplaceable or not dieplaceablo along the main deok for loading the bunker 5 with dumping materisl. ~his dumping material may be tsken from the hold(~) of the vessel 1 it~el~ or from lighters or the like lying alongside the vessel. As a matter of oourHo, other oharging devlcee than a crane may be u~ed for supplying dumping material to the bunker.
~ 4 ~ 1174990 `iith an outlet stub 8 on the under~ide of the bunker oommu-nicates the top end of a plpe 8A, which is surrondad by the top end of a flesible, hollow ~ember 9, which e~tends in the position shown in Fig. 1 downwards through the pipe 4 toward3 the subsqueous ground.
The hollow member 9 comprises a plurality of cylindrical 'nets 10, each of which ia provided at the top and bottom and~ with a flange 11 and 12 re~pectively (Fig. 2), Between the flanges 11 and 12 ring3 13 eYtend at equal intervals paralle~ to the flange~ 11 and 12 and are conneoted with the net 10,The distance bstwe~ a flange and the most adjacent ring 13 and the di~tance between two neighbouring rings 1~ are chosen ~o that sAid di~tance is equ~l to or smaller than the largest diameter of the hollow member 9 comprising the successive net~ 10. The size of the me~hes of the net is chosen in accordance with the material to be dumped 80 that no undesirable amounts of this material can move across the meshes of the net.
~ he lower flange 12 of the net lO i~ conn~cted with the adja¢ent flange 11 of the ne~t-following net 10 preferably with the aid of quickly fiYable and relea~able connecting member~, whioh are not ~hown in detail.
A~ hown in Fig~. 4 and 5, the lower end of the hollow member 9 is provided with a bottom flange 14, to which i~ fastened the top end of a shoot 15, which constitute~ the lower end of the hollow member.
Around the ~hoot are arranged four or more driving members 16 to 1g, which can be put into and out of operation from the ve~el.
With the aid of these driving members (see Fig. 5) the lower end of the hollow member 9 can be subjected to a force directed to the left or to the ri~ht and, re~peotively directed upward~ or downwards, as the ca~e may be, in conjunction 80 that the lower end of the hollow member 9 can be maiDtaineA in a de~ired po~ition or, respsati~ely, moved into a de~ired po~ition~ By using four driving members of the kind descr~bed the control of the lower end Or the hollow member can even be ensured ~hen one of the two p~rallel driving embers 16 and t8 and/or one of the two parallel driving members 17 and 19 fails to operate.
It is furthermore ahown that the lower flange 14 i~ 3uspend-gd to the lower ends of the hoi~ting cableo 20. As ia shown i~ detail in Figs. 2 and ~ these hoi~ting cables are paseed through and coupled with cable guides 21 shown only schematically fastened to the flanges 11 and 12 and to the rings, said guide~ being prefersbly ¢onstruoted eo that they can be readily opened and closed to remove the csbles from the guides or t~rearrange them therein respecti~aly.
The top ends of the hoiating cablos 20 are connected with winches 22 arrsn~ed on the veosel, particulsrly on the frame 6.
~ ig. 1 show~ furthermore that to the opening 8 of the bun~er 18 furthermore fastened a downwsrdly e~tendlng pipe 8~, whloh e~tonds in the top psrt of the hollow member 9.
The ves~el 1 is proferably oquipped with driving mean~
with the aid of which the vesesl can be displscea both in lte direction of length and in transver~e direction. Said drivlng meane oan bo oontrolled with the aid of a computer or the like in a msnner such that the ~essel io malntalned accurately in a predetermlned poa1tion or moves acourately along a given track. In thi8 manner it csn be ensured that ~or dumping material on the sea floor and/or on an obJect lying on the bottom the lower end of the ~hoot is also maintained at the given area or moves along the gi~en traok. In thi~ ¢a~e the shoot hsng~ down in the manner shown in Fig. 1 and will be in the stretched state. The material to be dumped can then be brought into the bunker 5 and from the bun~er - 6 117499~
be pa~sed through the pipe 8A and the interior of the hollow member 9 toward~ the end of the hollow member. By ~uitable choioe of the mesh ~i~e of the net of the hollow member 9 it can bo avoided th~t undesirably large amounts of dumping ~aterial pas~ a¢ross the me~he~ o~ the net-shaped material. Water can, however~ pass freoly through the meshe~ of the net-sh~pea material ~o that the lateral foroe9 e~erted through the hollow member on the vessel will be relatively slight.
~ y correct choice Or the weight of the flanges 11, 12 and the ring~ 13 it can be en~ured that the hollow me~ber hanging down from ~he vessel during operAtion has such aresilienc- aonstant and inertia that at the occurrence of movements the~s motion~ of the ship are dy~ng out ~long the length of the hollow embor 80 that thQy will sub~tantially not be trans~erred to the lower end o~ the hollow member.
~herefore, during operation the lower end of the hollow me~ber can be fairly closely approached to the ground or the objeot to be covered with dumping msterial without the risk of the lower end of the holaow member coming undesirably into ¢onta~ with the ground and/or the object to be covered.
Since by ~aid construction the hollow member has a low weight and will esperience little resistance in the water during operation, lt may unobjeotionably be constructea in a largo dlameter 80 that the hollow member according to the invention permita of using du~ping material of large ~ize, for e~ample, stone~ without the risk of cloggiDg of the hollow member.
Owing to the above.de~cribsd disposltion of ring~ and flangoa at relative di~tances smaller than the diameter of the pipe it is avoided, as hae been found in practice, that the pa~sAge is undesirably diminished due to torsion of the hollow member about lts longitudinal a~is.
~ fter the job has been fini~hed or when the hollow member 7 ~ 174990 has to be inspected, the bunker 5 can be lifted with the aid of the rams 7 into the position shown in ~igs. 6 and 7, in which the pipe 8A
i9 completely above the main deck. Then by sctuating the wi~ches the hoisting cable~ 20 can be hauled up ~o that the Ylanges 11, 12 and ring~
of the hollow member are progres~iYely drawn against one another, the parts of the net being folded in bellows-like faohion as i8 illustrated in Fig. 6. Thus standing on the main deck o~ the vesoel one c~n cheok the ~tate of the hollow member and if a gi~en part of the material of the hollow member is damaged, ~aid part can be readily taken away by relea~ins the flanges concerned and be replaced by a new p~rt. ~inally the hollow member can be completely drawn in on the pipe 8A a~ i8 illustrated in Fig. 7, in which pooition al~o the shoot 15 and the driving members secured thereto can be checked.
From the foregoing it will be obvious that by using the construction ~c;aording to the invention a p~rticulsrly simple and efficient structure is obtained, which provtdeo surprisi~g advantages with reapect to the constructiono hitherto used.
In order to ensure a very uniform ~upply of material to the hollow member 9 a dosing system, for e~ample, a vibrating chute may be arran~edbetween the hollow member 9 and the bunker 5.
Aocording to the invention the hollow pipe i8 msde from flexible, water-perviouJ material.
In practice it ha~ been found that by uoing suoh ~ hollow member of fle~ible, water-pervious material the disadvantage~ inherent in the above-de~cribed uses of the pipe can be avoided.
The force~ transferred through the hollow ~ember to the ~hip may thus be relatively small, ~in¢e the wall of the hollow member is pervioua to water. Moreover, the hollow member can be readily hauled up or lowered, ~ince it i~ made from fle~ible material and can, thereEore, bs folded, ~o to say, in the Eorm oE bellows. By correct con~truction of bhe flexible member it can be ensured that during dumping of the mate-rial the ship~s movement~ are appreciably damped along the length of the hollow member 80 that the u~u~l movement~ oE the ship are ~ubstantially not transferred to the lower end of the hollow member. As a result, the lower end of the hollow member ¢an be brought nearer the ground surface or the ob~ect to be protected w~thout the risk of contact betweon the lower end of the hollow member and the ground or the obJect concerned respectively, which would give rise to damage of the hollow member and/or of the ob~ect to be protected.
The invention will now be described more fully wlth reference to ~n smbodiment of a conetruotion accordi~ to the invention shown schematically in the accompsnying drawing.
Fig. 1 schematically shows part o~ a ship with a bunker placed on it, with which communioates the top end of a hollow member.
Fig, 2 show~ on an enlarged scale part of the hollow me~ber.
Fig, 3 i~ a ~ectionu1 viow of the ~ember of Fig. 2 ta~en on the li~e lII-III in ~ig. 2.
Fig, 4 is an elevational view of the lower end of the hollow member.
Fig. 5 is a bottom view of the part of Pig. 4.
Fig, 6 is a repre~entation like Flg. 1, the bunker being moved into an elevated position and the hollow ember being partly drawn up.
Fig. 7 is a representation corresponding to Fig. 6, the hollow member being completely drawn up.
Fig. 1 eohematically ehows part Or a ship's hull 1, which compri~ee a main deok 2 snd a lower eur~aoe 3. In tho ~hip~ hull 1~
arranBed a vertioal pipe 4. Above the plpe le arrangod a bunker 5, which in the poeition ehown in ~ig. 1 bearo on the main deok 2 by meane of a bunker eupporting frame 6. With the bunker are coupled a few setting rams 7 e~tendin6 vertioslly upwards, wlth the aid of whioh the bunker ie displaceable in a direction of helght, as will be e~plained more fully hereinafter.
On the main deck 2 i~ arranged a crane (not shown) which may be dieplaceable or not dieplaceablo along the main deok for loading the bunker 5 with dumping materisl. ~his dumping material may be tsken from the hold(~) of the vessel 1 it~el~ or from lighters or the like lying alongside the vessel. As a matter of oourHo, other oharging devlcee than a crane may be u~ed for supplying dumping material to the bunker.
~ 4 ~ 1174990 `iith an outlet stub 8 on the under~ide of the bunker oommu-nicates the top end of a plpe 8A, which is surrondad by the top end of a flesible, hollow ~ember 9, which e~tends in the position shown in Fig. 1 downwards through the pipe 4 toward3 the subsqueous ground.
The hollow member 9 comprises a plurality of cylindrical 'nets 10, each of which ia provided at the top and bottom and~ with a flange 11 and 12 re~pectively (Fig. 2), Between the flanges 11 and 12 ring3 13 eYtend at equal intervals paralle~ to the flange~ 11 and 12 and are conneoted with the net 10,The distance bstwe~ a flange and the most adjacent ring 13 and the di~tance between two neighbouring rings 1~ are chosen ~o that sAid di~tance is equ~l to or smaller than the largest diameter of the hollow member 9 comprising the successive net~ 10. The size of the me~hes of the net is chosen in accordance with the material to be dumped 80 that no undesirable amounts of this material can move across the meshes of the net.
~ he lower flange 12 of the net lO i~ conn~cted with the adja¢ent flange 11 of the ne~t-following net 10 preferably with the aid of quickly fiYable and relea~able connecting member~, whioh are not ~hown in detail.
A~ hown in Fig~. 4 and 5, the lower end of the hollow member 9 is provided with a bottom flange 14, to which i~ fastened the top end of a shoot 15, which constitute~ the lower end of the hollow member.
Around the ~hoot are arranged four or more driving members 16 to 1g, which can be put into and out of operation from the ve~el.
With the aid of these driving members (see Fig. 5) the lower end of the hollow member 9 can be subjected to a force directed to the left or to the ri~ht and, re~peotively directed upward~ or downwards, as the ca~e may be, in conjunction 80 that the lower end of the hollow member 9 can be maiDtaineA in a de~ired po~ition or, respsati~ely, moved into a de~ired po~ition~ By using four driving members of the kind descr~bed the control of the lower end Or the hollow member can even be ensured ~hen one of the two p~rallel driving embers 16 and t8 and/or one of the two parallel driving members 17 and 19 fails to operate.
It is furthermore ahown that the lower flange 14 i~ 3uspend-gd to the lower ends of the hoi~ting cableo 20. As ia shown i~ detail in Figs. 2 and ~ these hoi~ting cables are paseed through and coupled with cable guides 21 shown only schematically fastened to the flanges 11 and 12 and to the rings, said guide~ being prefersbly ¢onstruoted eo that they can be readily opened and closed to remove the csbles from the guides or t~rearrange them therein respecti~aly.
The top ends of the hoiating cablos 20 are connected with winches 22 arrsn~ed on the veosel, particulsrly on the frame 6.
~ ig. 1 show~ furthermore that to the opening 8 of the bun~er 18 furthermore fastened a downwsrdly e~tendlng pipe 8~, whloh e~tonds in the top psrt of the hollow member 9.
The ves~el 1 is proferably oquipped with driving mean~
with the aid of which the vesesl can be displscea both in lte direction of length and in transver~e direction. Said drivlng meane oan bo oontrolled with the aid of a computer or the like in a msnner such that the ~essel io malntalned accurately in a predetermlned poa1tion or moves acourately along a given track. In thi8 manner it csn be ensured that ~or dumping material on the sea floor and/or on an obJect lying on the bottom the lower end of the ~hoot is also maintained at the given area or moves along the gi~en traok. In thi~ ¢a~e the shoot hsng~ down in the manner shown in Fig. 1 and will be in the stretched state. The material to be dumped can then be brought into the bunker 5 and from the bun~er - 6 117499~
be pa~sed through the pipe 8A and the interior of the hollow member 9 toward~ the end of the hollow member. By ~uitable choioe of the mesh ~i~e of the net of the hollow member 9 it can bo avoided th~t undesirably large amounts of dumping ~aterial pas~ a¢ross the me~he~ o~ the net-shaped material. Water can, however~ pass freoly through the meshe~ of the net-sh~pea material ~o that the lateral foroe9 e~erted through the hollow member on the vessel will be relatively slight.
~ y correct choice Or the weight of the flanges 11, 12 and the ring~ 13 it can be en~ured that the hollow me~ber hanging down from ~he vessel during operAtion has such aresilienc- aonstant and inertia that at the occurrence of movements the~s motion~ of the ship are dy~ng out ~long the length of the hollow embor 80 that thQy will sub~tantially not be trans~erred to the lower end o~ the hollow member.
~herefore, during operation the lower end of the hollow me~ber can be fairly closely approached to the ground or the objeot to be covered with dumping msterial without the risk of the lower end of the holaow member coming undesirably into ¢onta~ with the ground and/or the object to be covered.
Since by ~aid construction the hollow member has a low weight and will esperience little resistance in the water during operation, lt may unobjeotionably be constructea in a largo dlameter 80 that the hollow member according to the invention permita of using du~ping material of large ~ize, for e~ample, stone~ without the risk of cloggiDg of the hollow member.
Owing to the above.de~cribsd disposltion of ring~ and flangoa at relative di~tances smaller than the diameter of the pipe it is avoided, as hae been found in practice, that the pa~sAge is undesirably diminished due to torsion of the hollow member about lts longitudinal a~is.
~ fter the job has been fini~hed or when the hollow member 7 ~ 174990 has to be inspected, the bunker 5 can be lifted with the aid of the rams 7 into the position shown in ~igs. 6 and 7, in which the pipe 8A
i9 completely above the main deck. Then by sctuating the wi~ches the hoisting cable~ 20 can be hauled up ~o that the Ylanges 11, 12 and ring~
of the hollow member are progres~iYely drawn against one another, the parts of the net being folded in bellows-like faohion as i8 illustrated in Fig. 6. Thus standing on the main deck o~ the vesoel one c~n cheok the ~tate of the hollow member and if a gi~en part of the material of the hollow member is damaged, ~aid part can be readily taken away by relea~ins the flanges concerned and be replaced by a new p~rt. ~inally the hollow member can be completely drawn in on the pipe 8A a~ i8 illustrated in Fig. 7, in which pooition al~o the shoot 15 and the driving members secured thereto can be checked.
From the foregoing it will be obvious that by using the construction ~c;aording to the invention a p~rticulsrly simple and efficient structure is obtained, which provtdeo surprisi~g advantages with reapect to the constructiono hitherto used.
In order to ensure a very uniform ~upply of material to the hollow member 9 a dosing system, for e~ample, a vibrating chute may be arran~edbetween the hollow member 9 and the bunker 5.
Claims (11)
1. A vessel comprising a hollow member hanging down from the vessel intended to dump material through the hollow member on the subaqueous ground characterized in that the hollow member is made from flexible, water-pervious material.
2. A vessel as claimed in Claim 1 characterized in that the hollow member is made from net-shaped material.
3. A vessel as claimed in Claim 1 characterized in that the hollow member of flexible material is provided with rings supporting the material so that the distance between said supporting rings is equal to or smaller than the diameter of the supporting rings.
4. A vessel as claimed in any one of Claims 1, 2 or 3 characterized in that the hollow member is composed of a plurality of sections coupled with one another with the aid of flanges arranged at the ends of the sections.
5. A vessel as claimed in Claim 1 characterized in that hoisting cables are coupled with the lower end of the hollow member and connected with winches disposed on the vessel.
6. A vessel as claimed in Claim 5 characterized in that the hoisting cables are releasably coupled with the rings in the hollow member.
7. A vessel as claimed in any one of Claims 1, 2 or 3 characterized in that the lower end of the hollow member is provided with driving members for displacing said lower end of the hollow member.
8. A vessel as claimed in Claim 1 characterized in that the top end of the hollow member is connected with the outlet opening of a dumping bunker.
9. A vessel as claimed in Claim 1 characterized in that in the top end of the hollow member is arranged a shoot through which the dumping material is guided into the hollow member.
10. A vessel as claimed in Claim 8 or 9 characterized in that the bunker together with the hollow member connected herewith is arranged on the vessel so as to be displaceable in a direction of height.
11. A vessel as claimed in any one of Claims 1, 2 or 3 characterized in that a dosing system is provided for supplying material to the hollow member.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NLAANVRAGE8102244,A NL188938C (en) | 1981-05-08 | 1981-05-08 | VESSEL WITH DEVICE FOR POURING MATERIAL ON A SUBSTRATED SOIL. |
| NL8102244 | 1981-05-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1174990A true CA1174990A (en) | 1984-09-25 |
Family
ID=19837457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000402513A Expired CA1174990A (en) | 1981-05-08 | 1982-05-07 | Vessel |
Country Status (8)
| Country | Link |
|---|---|
| CA (1) | CA1174990A (en) |
| DE (1) | DE3217034A1 (en) |
| DK (1) | DK156769C (en) |
| FR (1) | FR2505287A1 (en) |
| GB (1) | GB2098139B (en) |
| IT (1) | IT1150888B (en) |
| NL (1) | NL188938C (en) |
| NO (1) | NO154339C (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1217115B (en) * | 1986-01-06 | 1990-03-14 | Maersk Co Ltd | PROCEDURE AND TANK SHIP FOR THE DISPOSAL OF DRAINING WATERS |
| SE8602599L (en) * | 1986-06-11 | 1987-12-12 | Stena Ab | SET AND DEVICE FOR THE DISPOSAL OF LIQUID AT SEA |
| GB2221873B (en) * | 1988-08-17 | 1992-08-26 | Westminster Seaway Ans | Method for thermally insulating a pipeline on the seabed |
| NL9000501A (en) * | 1990-03-05 | 1991-10-01 | Oord Acz B V Van | VESSEL. |
| BE1007880A6 (en) | 1994-02-10 | 1995-11-07 | Roda Shipping Limited | Downcomer. |
| NL9401101A (en) * | 1994-07-01 | 1996-02-01 | Oord Acz B V Van | Method and device for pouring fill-material onto a desired location on an area of ground and/or object which lies underwater |
| NL1000271C2 (en) * | 1995-05-02 | 1996-11-05 | Frank Hoos | Material-dumping equipment underwater |
| EP0869224A1 (en) * | 1997-03-28 | 1998-10-07 | Van Oord Acz B.V. | Method and device for dumping dredged materials |
| WO1998044207A1 (en) * | 1997-03-28 | 1998-10-08 | Van Oord Acz B.V. | Method and device for dumping dredged materials |
| GB2398294B (en) * | 2003-02-12 | 2006-02-22 | Robert Aylmer Smyth | A chute for transferring rubble |
| DE102006034461B4 (en) * | 2005-08-31 | 2008-12-11 | Josef Möbius Bau-Aktiengesellschaft | Apparatus for leveling, dumping and distributing bulk material on a leveled surface on the seabed, and method of making a flat ballast bed on the seabed |
| EP1936042B1 (en) * | 2006-12-19 | 2009-04-22 | Matthäi Bauunternehmen GmbH & Co. KG | Self-sealing material for sealing floor areas |
| US20080198685A1 (en) * | 2007-02-15 | 2008-08-21 | Umbehr Kevin B | Method of Preparing Sea Bed for Jack Up Rig Deployment |
| FR2981956B1 (en) * | 2011-10-26 | 2013-11-22 | Eltrova | DEVICE FOR REMONTING SEDIMENTS LOCATED IN THE MARINE FUNDS |
| NL2007973C2 (en) * | 2011-12-15 | 2013-06-18 | Bos & Kalis Baggermaatsch | Dumping vessel. |
| CN108033191A (en) * | 2017-12-29 | 2018-05-15 | 青岛沃隆花生机械有限公司 | Material delays drop conveying device and the material conveying method using the device |
| CN108797597A (en) * | 2018-06-27 | 2018-11-13 | 中铁二局集团有限公司 | A kind of steel reinforcement cage mounting platform and its application method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2780920A (en) * | 1953-04-28 | 1957-02-12 | Silvert Mac | Tremie pipe construction |
| US3688510A (en) * | 1971-09-03 | 1972-09-05 | Peter Kiewit Sons Co | Submarine rock placing traveler |
| NO139647C (en) * | 1977-06-06 | 1979-04-18 | Akers Mek Verksted As | PROCEDURE AND DEVICE FOR FILLING A GROUND |
| NO140775C (en) * | 1977-09-30 | 1979-11-07 | Stolt Nielsens Rederi | DEVICE FOR DOWNLOADING MASS FROM A SURFACE VESSEL TO A SITE ON THE SEAL |
| FR2412660A1 (en) * | 1977-12-23 | 1979-07-20 | Commissariat Energie Atomique | PROCESS FOR DEPOSITING MATERIALS ON SEA BEDS ACCORDING TO A GIVEN TRACE AND DEVICES FOR IMPLEMENTING THE SAID PROCEDURE |
| NL7809765A (en) * | 1978-09-27 | 1980-03-31 | Holterbosch J L M | REINFORCEMENT ELEMENT FOR HOSES AND BELTS. |
-
1981
- 1981-05-08 NL NLAANVRAGE8102244,A patent/NL188938C/en not_active IP Right Cessation
-
1982
- 1982-04-30 DK DK193282A patent/DK156769C/en not_active IP Right Cessation
- 1982-05-05 GB GB8212961A patent/GB2098139B/en not_active Expired
- 1982-05-06 FR FR8207875A patent/FR2505287A1/en active Granted
- 1982-05-06 IT IT21109/82A patent/IT1150888B/en active
- 1982-05-06 NO NO821493A patent/NO154339C/en not_active IP Right Cessation
- 1982-05-06 DE DE3217034A patent/DE3217034A1/en active Granted
- 1982-05-07 CA CA000402513A patent/CA1174990A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB2098139A (en) | 1982-11-17 |
| GB2098139B (en) | 1984-08-01 |
| NL8102244A (en) | 1982-12-01 |
| NO821493L (en) | 1982-11-09 |
| NL188938B (en) | 1992-06-16 |
| FR2505287B1 (en) | 1985-03-15 |
| NO154339B (en) | 1986-05-26 |
| DK156769C (en) | 1990-02-26 |
| DE3217034A1 (en) | 1982-11-25 |
| IT1150888B (en) | 1986-12-17 |
| NO154339C (en) | 1986-09-03 |
| DK193282A (en) | 1982-11-09 |
| FR2505287A1 (en) | 1982-11-12 |
| DE3217034C2 (en) | 1991-08-29 |
| IT8221109A0 (en) | 1982-05-06 |
| NL188938C (en) | 1992-11-16 |
| DK156769B (en) | 1989-10-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEC | Expiry (correction) | ||
| MKEX | Expiry |