EP1304414A1 - Installation pour l'arret des bateaux a cable pre-tendu et dispositifs de pre-tension du cable - Google Patents
Installation pour l'arret des bateaux a cable pre-tendu et dispositifs de pre-tension du cable Download PDFInfo
- Publication number
- EP1304414A1 EP1304414A1 EP02292325A EP02292325A EP1304414A1 EP 1304414 A1 EP1304414 A1 EP 1304414A1 EP 02292325 A EP02292325 A EP 02292325A EP 02292325 A EP02292325 A EP 02292325A EP 1304414 A1 EP1304414 A1 EP 1304414A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- assembly
- cable
- moorings
- elastic traction
- mooring
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B22/00—Buoys
- B63B22/04—Fixations or other anchoring arrangements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
- B63H25/50—Slowing-down means not otherwise provided for
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/20—Equipment for shipping on coasts, in harbours or on other fixed marine structures, e.g. bollards
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02C—SHIP-LIFTING DEVICES OR MECHANISMS
- E02C1/00—Locks or dry-docks; Shaft locks, i.e. locks of which one front side is formed by a solid wall with an opening in the lower part through which the ships pass
- E02C1/10—Equipment for use in connection with the navigation of ships in locks; Mooring equipment
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- 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
- B63B2021/003—Mooring or anchoring equipment, not otherwise provided for
- B63B2021/005—Resilient passive elements to be placed in line with mooring or towing chains, or line connections, e.g. dampers or springs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B2231/00—Material used for some parts or elements, or for particular purposes
- B63B2231/40—Synthetic materials
- B63B2231/42—Elastomeric materials
Definitions
- the present invention relates to installations for safety of the type comprising a safety cable arranged across a waterway so as to ensure stopping boats, including barges, barges, barges, convoys etc ..., before they come crash into structures, such as dams, bridges, quays, port facilities etc. located downstream.
- the invention is also applicable to the realization of pre-tensioning devices for cables intended for such boat safety installations.
- the stop cable is made of steel and the anchoring means consist of a concrete dead body securely connected to the floating trunk by a mother chain and a set of anchors and chains attached to the body death, the rupture of the connection assemblies following impact or impact with the boat releasing the chests end of the cable so as to drag to the bottom of the body dead, chains and anchors to absorb energy kinetics of the boat and stop it.
- the installation is replaced with replacement on the bottom of dead bodies, chains and / or anchors displaced and replacement of the release elements and / or rupture of the connection assemblies (elements commonly known as fuses).
- each end of the cable is attached to a piston moving inside a cylinder horizontal against hydraulic pressure, the braking force being determined by the section of liquid outlets outside the chamber put under pressure by pulling the cable.
- Each brake is carried by a vertically moving carriage, by through a pebble in contact with a path bearing, in a guide formed by a recess provided in the masonry wall located just upstream of each side of a lock door to be protected.
- the pebbles of bearing are mounted on the carriages by through elastic low torsion means travel, in this case torsion bars, to allow the carriages to come to bear directly on the roller tracks under the effect significant effort from the cable.
- elastic low torsion means travel, in this case torsion bars, to allow the carriages to come to bear directly on the roller tracks under the effect significant effort from the cable.
- the rupture keys arranged at the end of the cable release hydraulic brakes.
- the cable placed upstream of the lock door can be moved vertically by carts lifting devices between a position submerged at the bottom of the channel and an emerged position adjustable above the water.
- the torsion bars fitted to the carriages have the main function of clutching and disengaging trolleys on the tracks.
- These bars of torsions have too little maximum travel (from the order of a few centimeters) to allow their use in a “floating” cable installation (where an extension of at least one meter is required).
- the invention proposes an installation for stopping of boats with flexible stop cables arranged in across all or part of a waterway and connected at each end to anchoring means arranged at the bottom of the waterway and to a floating trunk itself attached to at least one lateral fixed point of restraint by a link assembly of lower resistance, the installation being adapted, once the boat is taken in the stop cable and breaking the sets of connection, to stop the boat using the means anchoring, the installation being characterized in that the stop cable is mainly made of material synthetic with very high tensile strength and what the cable is pre-tensioned by at least one set elastic traction at a much lower tension at the value corresponding to the rupture of the sets of link.
- the stop cable is made of aramid and is optionally covered with a polyester sheath.
- aramid polyamide aromatic
- the choice of aramid for the cable is all the more interesting because next to it exceptional tensile strength (approximately 300 MPa with a longitudinal Young's modulus between 70 and 130 GPa) this fiber has a relatively low density (1.450 kg / m3).
- each elastic traction set consists of one or multiple elastomeric strand bundles wrapped in a protective polyester sheath.
- the elastic traction assembly preferably at high axial elongation (for example greater than 100% in relative and / or greater than 1 meter in absolute), is integrated and / or secured to one of said sets of bond of least resistance.
- each connection assembly comprises two moorings arranged in V relative to the trunk, said elastic traction assembly being associated with at least one of the two moorings to give a variable geometry to the sets of V connections and a deformation elastic for securing safes.
- one of the two V-shaped moorings in the boot incorporates or integrates said elastic traction assembly (also called hereinafter tensioner).
- the first embodiment is said to have an integrated tensioner.
- the branches of the V formed by the two moorings of the boot are connected together by said elastic traction assembly (or tensioner).
- this second embodiment is said to have a transverse tensioner.
- the embodiment says integrated tensioner, in addition to its great simplicity of fabrication and adjustment, allows to use, pretension equivalent cable, tensioners lower elongation (with less risk of deterioration by excessive elongation) than that required for the tensioners used in the transverse tensioner installations.
- the result that installations with integrated tensioners are preferred to transverse tensioner installations for long cable lengths (80 to 100 meters and beyond 100 meters).
- the other mooring of each connection assembly comprises a portion of high strength and a portion of lower resistance provided with a rupture assembly whose value breaking capacity VRmax is maximum (ie greater than or equal to any other value of a breaking assembly incorporated in the installation).
- the traction mooring comprises an auxiliary rupture assembly adapted for the protection of the elastic traction assembly and calibrated at a value VP less than VRmax and the maximum load value of the tensioner before deterioration or destruction.
- the fixed retaining point of each traction line is located downstream from the fixed point of retention of the mooring line corresponding hold.
- This arrangement is particularly effective in that concerning the maintenance of the stop cable at good height above water despite variations in water levels of the waterway and disposal, or at least the significant reduction in scalloping of the cable. Variations in cable length adjustment according to the limited movements of the safes held by the upstream moorings being overtaken or compensated by the variations in the elongation of the tensioners integrated in the downstream moorings and maintenance of the cable pre-tension.
- each mooring has a portion of high resistance and a portion of less resistance provided with a breaking assembly, connecting elements between the mooring portions also serving as attachment points for said elastic traction assembly.
- the lower resistance portions are each equipped a mechanical tensioner for adjusting the length of moorings.
- the high resistance portions are intended to be fixed to said fixed points lateral restraints and lesser portions resistance are intended to be fixed at two points of fasteners on the corresponding trunk distant from distance substantially equal to the adjustment length initial of the elastic traction assembly.
- the invention also relates to pretensioners. cable or connection and pre-tensioning assemblies with elastic traction assembly, mounted or not on floating box, for installation for shutdown boats with a stop cable made of material synthetic, with integrated tensioner or with transverse tensioner.
- the cable pretensioners include two moorings arranged in a V relative to each end of the cable, one of the two moorings, the traction mooring, incorporating said elastic traction assembly, the other mooring, mooring holding, incorporating a rupture assembly having a maximum rupture value VRmax.
- the two V-shaped moorings and the end corresponding stop cable are respectively attached to a floating chest.
- the two V-shaped moorings and the end corresponding stop cable are respectively attached to the three vertices of a triangular frame spacer.
- the invention also relates to a connection assembly and pre-tensioning with elastic traction assembly, mounted or not on floating box, for installation for stopping boats according to the invention presented above and / or a replacement kit consisting of a cable plastic stopper, preferably aramid, and two sets of connection and pre-tensioning.
- FIGS 1 to 4 illustrate the structure and operation of the embodiment of an installation for stopping tensioner boats integrated described below.
- Figure 1 shows a schematic plan view of a portion of waterway in which a musoir lock 110, 110 'separates the navigation channel 112 leading to a lock (not shown) of a channel 114 of bypass leading to a dam 116 extending across channel 114 substantially between the head 110 and the bank 118 of the waterway.
- a dam 116 Upstream of the dam 116 (the direction of the current being represented by the arrow F) and across the channel 114 is an installation to stop 120 boats for the purpose of protect dam 116 downstream from the installation of 120 security and boats.
- boats must be taken in its meaning the wider and includes in particular any floating device of load or work such as barges, freighters, barges, ferries, barges, pontoons, ferries, etc.
- figure 1 shows a convoy in difficulty 121 consisting of a pusher 121a and a barge 121b and which following a false maneuver or an engine failure is located in diversion channel 114 driven towards the dam 116.
- the security installation is mainly made up a stop or guard cable 122 stretched across the channel 114 (separating the upstream 114a and downstream 114b parts channel) between two floating boxes 124 and 125 each attached to two lateral fixed retaining points 126a-126b and 127a-127b respectively located on land on the wall 110 ′ of the head or at the edge of the bank 118 by via linkage assemblies 128 and 129, the ends of cable 122 being securely attached to anchoring means 130 and 131 arranged at the bottom 113 of the waterway.
- each end of the cable 122 is attached to the upper end of a spacer axial connecting tube 141 (161) (shown on Figures 2 and 3) crossing the trunk 124 (125) corresponding by following the central axis Z1 (Z2) thereof, the lower end of each spacer tubular being connected by a mother chain 132 (133) to anchoring means, in this case adapted to funds rocky, and comprising a concrete dead body 134 (135) to which is attached a bundle of large chains 136 (137) welded at their free ends to crosspieces anchors 138 (139).
- the anchoring means are adapted to muddy or sandy bottoms and each has a body concrete death secured to a plurality of chains each carrying an anchor suitable for soft bottoms, for example a flat anchor.
- the cable 122 is made of fibers aramid, aromatic polyamide of very high resistance tensile.
- the aramid cable is advantageously mechanically protected against UV radiation by a polyester sheath. Because of its linear density relatively weak, cable 122 can be stretched above water at an average height of 0.6 meters at using pre-tensioning connection sets 128 and 129 described below and with a reduced number by intermediate floats 140, in this case two distant floats one, the other about 30 meters for a total length of the cable 122 of a hundred meters.
- Figure 1 also illustrates the operating mode of security installation 120 by showing schematically two positions of convoy 121, the first rightmost looking at Figure 1 (references in 'for displaced elements) shows the end of the installation tensioning phase energy absorption (anchoring means) under the effect of advancing barge 121a with the deformation of the stop cable to take the form 122 ′, safes 124 'and 125' released from their sets of link allowing direct transmission of forces pulling the stop cable towards the dead bodies 132, 133.
- the second position of the convoy shows the latter in position 121 '' stopped by the cable 122 '', the safes 124 '' and 125 '', 134 '' and 135 '' dead bodies, chains anchor 136 '' and 137 '' and the cross beams 138 '' and 139 '', the latter elements having slipped on the bottom to absorb the kinetic energy of the convoy.
- Figure 2 illustrates the front of the 121 '' convoy (seen from the shore 118) in its stopped position with the 122 '' cable out of water around the bow of barge 121a '' (the reference 115 designating the surface of the water body or the water line along the banks of the waterway), the 140 '' intermediate float, 125 '' trunk, tense 133 mother chain, 135 '' dead body, beam 137 '' chain and 139 '' anchor cross member, these last three components making up the means anchor having dragged on the bottom 113.
- the reader may refer to French patent FR 2,580,691 for obtain additional general information on "safety" mode operation of this type for stopping boats.
- FIG 3 shows an enlarged plan view of cable 122 (without the floats 140) and its connection assemblies 128 and 129.
- Each connection set 128, 129 comprises two moorings 128a-128b, 129a-129b arranged in V by relative to the corresponding safe 124, 125, preferably symmetrically at 45 ° to the central axis of the trunk Z1, Z2 (perpendicular to the plane of Figure 3).
- Downstream moorings 128b and 129b (preferably identical) have the ends attached to the fixed points 126b and 127b located downstream, relative to the cable 122, of the fixed points 126a and 127a to which the ends of upstream moorings 128a and 129a (preferably identical).
- FIG. 3 schematically illustrates the connection assembly 129, the upstream and downstream moorings 129a and 129b are substantially identical to the moorings 128a and 18b already described.
- the mooring 129a comprises a high resistance portion 145a and a fuse 147a (calibrated to VRmax ) secured to the lug 155a fixed to the trunk 125 and the mooring 129b comprises a high resistance portion 145b, a protective fuse 147b and a tensioner 149 identical to the tensioner 148.
- Each elastic traction set is mainly consisting of a tensioner 148, 149 of the SEAFLEX type of the Swedish company ANCRO MARIN AB made from one or more bundles of elastomeric strands of SBR rubber wrapped in a protective sheath polyester. These tensioners are capable of front axial or longitudinal elastic extension rupture greater than 200%.
- Each tensioner 148 (149) develops a tensile force by tending contraction to bring its free ends together; this effort of traction is regulated by the play of dimensions of the chain 144b (145b) possibly using a tensioner mechanical to reach a level of tension on the downstream moorings 128b and 129b of approximately 700 kg or 710 daN for a 6-strand SEAFLEX tensioner with a length energized about 4 meters.
- connection assemblies 128 and 129 are dimensioned in the species to withstand at least 90 tonnes (90,000 kg).
- tensioners 148 and 149 by their contraction and elongation capacity provide pretension cable 122 correct despite variations in level 115 of the body of water, ensuring a height suitable cable over water (except in exceptional cases of broken protective fuses 146b and 147b due to excessive elongation of the tensioners 148 and 149).
- pre-tensioning device we note that the cable remains tight in a straight line whatever the current speed, permanent pre-voltage generated by the tensioners 148, 149 easily taking up the slack on the downstream moorings 128b and 129b due to the acting current on the chests.
- pre-tensioning device of the cable 122 illustrated in figures 3 and 4 can be modified by fitting safes 124, 125 with triangular frames 224 and 225 (shown in dashes on the Figure 3) or by directly connecting the moorings of sets of connections at the ends of the cable 122 to the height of spacers 141 and 161.
- FIGS 5 to 11b illustrate the structure and operation of the embodiment of an installation for stopping tensioner boats transverse described below.
- FIG. 5 represents a schematic plan view of a portion of track navigable in which a lock 10, 10 ' separates channel 12 leading to a lock (not shown) of a diversion channel 14 leading to a dam 16 extending through the channel 14 substantially between the head 10 and the bank 18 of the track navigable.
- Upstream of dam 16 (the direction of the current being represented by arrow F) and across the channel 14 is arranged a safety installation to stop the boats 20 according to the invention in the purpose of protecting dam 16 downstream of the installation 20 security and boats.
- the term “boats” must be taken in its broadest sense and understands in particular any floating load or working machine such as barges, freighters, barges, ferries, barges, pontoons, ferries, etc. .
- Figure 5 shows a convoy in difficulty 21 consisting of a pusher 21a and a barge 21b and which following a false maneuver or engine failure is in the channel 14 driven towards the dam 16.
- the security installation is mainly made up a stop or guard cable 22 stretched across the channel 14 between two floating boxes 24 and 25 attached each at two fixed lateral retaining points 26-26 'and 27-27 'respectively located on the ground on the 10' wall of the musoir or along the shore 18 via of connection assemblies 28 and 29, the ends of the cable 22 being securely attached to anchoring means 30 and 31 arranged at the bottom 13 of the waterway.
- each end of the cable 22 is attached to the upper end of a spacer axial connecting tube 41, 61 (shown in the Figures 6 and 7) crossing the trunk 24, 25 corresponding, the lower end of each tubular spacer being connected by a mother chain 32 (33) anchoring means, in this case adapted to rocky bottom, and comprising a dead concrete body 34 (35) to which a bundle of large chains 36 (37) welded at their free ends to anchor sleepers 38 (39).
- the anchoring means are adapted to muddy or sandy bottoms and each has a body concrete death secured to a plurality of chains each carrying an anchor suitable for soft bottoms, for example a flat anchor.
- cable 22 is made of aramid, polyamide fibers aromatic with very high tensile strength.
- the aramid cable is advantageously protected mechanically and against UV radiation by a sheath polyester. Due to its relatively linear density weak, the cable 22 can be stretched over the water at an average height of 0.6 meters using the sets 28 and 29 pre-tensioning links described below and with a reduced number by floats intermediaries 40, in this case two distant floats one, the other about 30 meters.
- Figure 5 also illustrates the operating mode of the security installation 20 by showing schematically two positions of convoy 21, the first rightmost looking at figure 5 (references in 'for moved elements) shows the end of the phase of tensioning the absorption system of energy (the anchoring means) under the effect of the advancement of barge 21a with the deformation of the stop cable to take the form 22 ', the safes 24' and 25 'released from their linkage assemblies allowing direct transmission of cable tensile forces stop towards the dead bodies 32, 33.
- the second position of the convoy shows the latter in position 21 '' stopped by the cable 22 '', safes 24 '' and 25 '', dead bodies 34 '' and 35 '', 36 '' and 37 '' anchor chains and crosspieces 38 '' and 39 '' anchors, the latter elements having skidded on the bottom to absorb the kinetic energy of the convoy.
- Figure 6 illustrates the front of the 21 '' convoy (seen from the shore 18) in its stopped position with the 22 '' cable out of water around the bow of barge 21a '' (the references 15, 15 ', 15' 'designating without distinction three different heights the water level, the surface of the body of water or the water line along the banks of the waterway), the 40 '' intermediate float, the 25 '' chest, 33 chain stretched, dead body 35 '', the chain harness 37 '' and crosses it anchor 39 '', these last three components constituting the anchoring means having dragged on the bottom 13.
- the reader can refer to the patent French FR 2.580.691 for information additional general information on mode operation "Safety" of this type of installation for stopping boats.
- FIG. 7 shows an enlarged plan view of cable 22 (without the floats 40) and its connection assemblies 28 and 29.
- Each connection assembly 28, 29 comprises two moorings 28a-28b, 29a-29b arranged in V relative to to the corresponding safe 24, 25 and linked together by an elastic traction or tensioning unit 42, 43 mounted in an intermediate position transversely.
- each mooring has a portion of high strength 44b such as a mooring chain and a smaller portion resistor 46b carrying a breaking fuse 48b (in a cable calibrated for a breaking tension given (e.g. 10,000 kg) and optionally a mechanical screw tensioner 52b capable of supporting the fuse breaking voltage 48b.
- the two portions 44b and 46b are connected to a junction plate triangular 50b whose last free vertex serves as attachment point for one end of the assembly traction elastic 42 disposed between the branches of the moorings 28a and 28b.
- each chest has two legs 54a-54b and 55a-55b distant, in this case, about 2 meters.
- part 44b carries a fuse 56b known as loosening since the breaking of this fuse 56b calibrated for a lower voltage (for example 7.000 kg) to that of the breaking fuse 48b allows release a chain loop 64b (see detail of Figure 4) connecting the chain 44b to the plate 50b of release some tension on the cable 22, in particular by ice jams during flood periods.
- a chain loop 64b see detail of Figure 4
- these are the four fuses of rupture 48 which release releasing the safes 24 and 25 of their fixed retention points 26a-26b, 27a-27b.
- cable 22 is equipped at the trunk 24 of a release hook 62 controlled from distance.
- Each elastic traction set is mainly consisting of a tensioner 42, 43 of the SEAFLEX type of the Swedish company ANCRO MARIN AB made from a or more bundles of elastomeric strands of SBR rubber wrapped in a protective sheath polyester.
- These tensioners are capable of front axial or longitudinal elastic extension rupture greater than 200%.
- Each tensioner 42 (43) develops a tensile force by tending contraction to bring together its free ends and the plates 50a-50b (51a-51b) to which they are attached. This has effect of soliciting each trunk 24, 25 towards its attachment strand 10, 18 and separate them one from the other and to put the cable 22 under tension.
- linkage assemblies 28 and 29 are such as for an average low water level of the track navigable the tensioners 42, 43 are already used in tension so as to give the aramid cable 22 a pre-tension of the order of 1,000 to 1,500 kg (clearly lower than the breaking or loosening stresses of corresponding fuses) ensuring cable retention 22 at a good height above the water level. Incidentally during assembly it is possible to measure the actual tension on cable 22 with a dynamometer and adjust this tension by acting on the tensioners mechanical 52a-52b and 53a-53b.
- pre-tensioning device we note that the cable remains tight in a straight line whatever the current speed, permanent pre-voltage generated by the tensioners 42,43 easily countering the force due aware of acting on the chests.
- pre-tensioning device of the cable 22 illustrated in Figures 7 and 8 can be simplified for other uses including pre-tensioning safety cables in synthetic material replacing the boxes 24, 25 by triangular frames 324 and 325 (shown in dashes on the figure 3) or by directly connecting the moorings to ends 41 and 43 of the cable; the frame solution triangular 324 (325) to the vertices of which are fixed two tether links (replacing moorings 28a-28b, 29a-29b) and the corresponding end of the cable facilitating the mounting and adjustment of the tensioners.
- the pre-tensioning devices with variable geometry of the connection assemblies 28.29 allow elastic deformation of the mooring boxes 24 and 25 without sensitive lateral movement for these despite variations in water depths in waterway 14, as shown in the figures 9a-9b, 10a-10b and 11a-11b representing respectively average low water level situations 15, level 15 'high flood water and unemployment water level (emptying of the waterway) 15 ''.
- the review of moorings shows that compared to the average situation of low water ( Figures 9a-9b), the effective length of the mooring lines tend to lengthen to reach a position where the portions 44 and 46 come into alignment ( Figures 11a-11b). This has the effect of lengthening the tensioners 42, 43 (within acceptable limits) and an increase in the pre-tension acting on the boxes 24.25 so that the lateral position DL boxes horizontal is almost invariable with the water level in the waterway 14.
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Abstract
Description
Selon un second mode de réalisation d'installation pour l'arrêt des bateaux selon l'invention les branches du V formées par les deux amarres du coffre sont reliées entre elles par ledit ensemble élastique de traction (ou tensionneur). Pour la suite de l'exposé ce second mode de réalisation est dit à tensionneur transverse.
- la figure 1 représente une vue en plan d'une installation de sécurité pour l'arrêt des bateaux selon l'invention du type à tensionneur intégré;
- la figure 2 représente une vue longitudinale de côté agrandie de l'avant du convoi retenu par l'installation de sécurité de la figure 1;
- la figure 3 représente une vue en plan agrandie du câble et de ses ensembles de liaison utilisés dans l'installation de la figure 1; et
- la figure 4 représente une vue en plan agrandie d'un ensemble de liaison illustré à la figure 3.
- la figure 5 représente une vue en plan d'une installation de sécurité pour l'arrêt des bateaux du type à tensionneur transverse;
- la figure 6 représente une vue longitudinale de côté agrandie de l'avant du convoi retenu par l'installation de sécurité de la figure 5;
- la figure 7 représente une vue en plan agrandie du câble et de ses ensembles de liaison utilisés dans l'installation de la figure 5;
- la figure 8 représente une vue en plan agrandie d'un demi-ensemble de liaison illustré à la figure 7 ; et
- les figures 9a-9b, 10a-10b et 11a-11b montrent des représentations schématiques des vues en élévation et des vues en plan correspondantes d'un ensemble de liaison utilisé dans l'installation de la figure 5 pour trois niveaux distincts de hauteur d'eau de la voie navigable.
- l'amarre amont 128a ou amarre de maintien comporte une portion de haute résistance 144a telle qu'une chaíne d'amarrage et une portion de moindre résistance intégrant d'un fusible de rupture 146a (en l'espèce un câble calibré pour une tension de rupture maximale VRmax donnée, par exemple 10.000 kg ou 10.000 daN, et correspondant à la valeur de rupture des deux ensembles de liaison 128 et 129 comme expliqué ci-après), le fusible 146a étant de préférence disposé à l'extrémité côté coffre de l'amarre amont 128a solidarisé à la patte d'attache 154a fixée au coffre 124; et de
- l'amarre aval 128b ou amarre de traction intègre un ensemble élastique de traction ou tensionneur 148 disposé de préférence à l'extrémité côté coffre de l'amarre aval 128b solidarisé à la patte d'attache 154b fixée au coffre 124 et comporte une portion de haute résistance 144b telle qu'une chaíne d'amarrage et une portion de moindre résistance intégrant un fusible de protection 146b attaché à l'extrémité libre du tensionneur 148. Le fusible 146b destiné à la protection du tensionneur (pour éviter sa destruction par élongation excessive) est constitué d'un câble calibré taré à une tension intermédiaire VP (en l'espèce 5.000 kg ou environ 5.000 daN) inférieure à la tension de rupture VRmax et à la tension de charge maximale du tensionneur (avant destruction et détérioration) mais supérieure à la tension correspondante dans le tensionneur (710 daN) à la pré-tension choisie pour le câble (1.000 daN).
Claims (23)
- Installation (20,120) pour l'arrêt des bateaux comprenant un câble d'arrêt flexible (22,122) disposé en travers de tout ou partie d'une voie navigable (14,114) et relié à chaque extrémité à des moyens d'ancrage (36-37,136-137) disposés au fond (13,113) de la voie navigable et à un coffre flottant (24-25,124-125) lui-même attaché à au moins un point fixe latéral de retenue (26a-26b,27a-27b ;126a-126b,127a-127b) par un ensemble de liaison de moindre résistance (28-29,128-129), l'installation (20,120) étant adaptée, une fois le bateau (21,121) pris dans le câble d'arrêt et la rupture des ensembles de liaison (28-29,128-129), pour arrêter le bateau (21,121) à l'aide des moyens d'ancrage (36-37,136-137), l'installation (20,120) étant caractérisée en ce que le câble d'arrêt (22,122) est principalement constitué de matière synthétique de très haute résistance à la traction et en ce que le câble d'arrêt (22,122) est pré-tendu par au moins un ensemble élastique de traction (42-43,148-149) à une tension nettement inférieure à la valeur correspondante à la rupture des ensembles de liaison (128, 129).
- Installation selon la revendication 1, caractérisée en ce qu'au moins un ensemble élastique de traction (42-43,148-149) est intégré et/ou solidarisé à un desdits ensembles de liaison de moindre résistance (28-29,128-129).
- Installation selon la revendication 2, caractérisée en ce que chaque ensemble de liaison (28-29,128-129) comporte deux amarres (28a-28b,29a-29b ;128a-128b, 129a-129b) disposées en V par rapport au coffre (24-25,124-125), ledit ensemble élastique de traction étant associé à au moins une des deux amarres.
- Installation selon la revendication 3, caractérisée en ce que ledit ensemble élastique de traction (148,149) est intégré à une des deux amarres (128b,129b), ci-après appelée l'amarre de traction.
- Installation selon la revendication 4, caractérisée en ce que l'autre amarre (128a,129a) de chaque ensemble de liaison, ci-après amarre de maintien, comporte une portion de haute résistance (144a,145a) et une portion de moindre résistance (146a,147a) pourvue d'un ensemble de rupture (148, 149) présentant la valeur de rupture maximale VRmax.
- Installation selon la revendication 5, caractérisée en ce que l'amarre de traction (128b,129b) comporte un ensemble de rupture auxiliaire (146b,147b) adapté pour la protection de l'ensemble élastique de traction et taré à une valeur de rupture VP inférieure à VRmax.
- Installation selon l'une des revendications 4 à 6 caractérisée en ce que le point fixe de retenue (126b,127b) de chaque amarre de traction (128b,129b) est disposé en aval du point fixe de retenue (126a,127a) de l'amarre de maintien correspondante (128a,129a).
- Installation selon la revendication 3, caractérisée en ce que les amarres formant les branches du V (28a-28b,29a-29b) sont reliées entre elles par ledit ensemble élastique de traction (42,43) disposé en position intermédiaire.
- Installation selon la revendication 8, caractérisée en ce que chaque amarre (28b) comporte une portion de haute résistance (44b) et une portion de moindre résistance (46b) pourvue d'un ensemble de rupture (48b), les éléments de jonction (50b) entre les portions des amarres servant également de points d'attache pour ledit ensemble élastique de traction (42).
- Installation selon la revendication 9, caractérisée en ce que les portions de moindre résistance (46b) sont équipées chacune d'un tendeur mécanique (52b) de réglage de la longueur des amarres.
- Installation selon l'une des revendications 8 à 10 caractérisée en ce que les portions de haute résistance (44b) sont destinées à être fixées auxdits points fixes latéraux de retenue (26b) et en ce que les portions de moindre résistance (46b) sont destinées à être fixées à deux points d'attaches (54a,54b) sur le coffre correspondant (24) éloignés d'une distance sensiblement égale à la longueur de réglage initial de l'ensemble élastique de traction (42).
- Installation selon l'une des revendications précédentes, caractérisée en ce que chaque ensemble élastique de traction (42-43,148-149) est constitué d'un ou plusieurs faisceaux de brins allongés élastomères enveloppés dans un fourreau de protection en polyester.
- Installation selon l'une des revendications précédentes, caractérisée en ce que le câble d'arrêt (22,122) est fabriqué en d'aramide et est éventuellement recouvert d'une gaine en polyester.
- Ensemble de liaison (128,129) et de pré-tensionnement à ensemble élastique de traction (148,149), monté ou non sur coffre flottant, pour installation pour arrêt des bateaux comportant un câble d'arrêt (122) en matériau synthétique selon l'une des revendications 4 à 7, caractérisé en ce qu'il comporte deux amarres (128a-128b, 129a-129b) disposées en V par rapport à chaque extrémité du câble, une (128b,129b) des deux amarres, l'amarre de traction, incorporant ledit ensemble élastique de traction (148,149), l'autre amarre, amarre de maintien, incorporant un ensemble de rupture (146a, 147a) présentant la valeur de rupture maximale VRmax.
- Ensemble de liaison (128,129) et de pré-tensionnement à ensemble élastique de traction (148,149) selon la revendication 14, caractérisé en ce que les deux amarres (128a-128b,129a-129b) d'un même ensemble de liaison et l'extrémité correspondante du câble d'arrêt (122) sont respectivement fixées à un coffre flottant (124,125).
- Ensemble de liaison (128,129) et de pré-tensionnement à ensemble élastique de traction (148,149) selon la revendication 15, caractérisé en ce que les deux amarres (128a-128b,129a-129b) d'un même ensemble de liaison et l'extrémité correspondante du câble d'arrêt (122) sont respectivement fixées aux trois sommets d'un cadre triangulaire d'écartement (224,225).
- Ensemble de liaison (128,129) et de pré-tensionnement à ensemble élastique de traction (148,149), selon l'une des revendications 14 à 16, caractérisé en ce que l'amarre de traction (128b, 129b) comporte un ensemble de rupture auxiliaire (146b, 147b) de protection taré à une valeur VP inférieure à VRmax.
- Ensemble de liaison (28,29) et de pré-tensionnement à ensemble élastique de traction (42,43), monté ou non sur coffre flottant, pour installation pour arrêt des bateaux comportant un câble d'arrêt (22) en matériau synthétique selon l'une des revendications 8 à 11, caractérisé en ce qu'il comporte deux amarres (28a-28b,29a-29b) disposées en V par rapport à chaque extrémité du câble, les branches du V étant reliées entre elles par un ensemble élastique de traction (42,43) disposé en position intermédiaire.
- Ensemble de liaison (28,29) et de pré-tensionnement à ensemble élastique de traction (42,43) selon la revendication 18, caractérisé en ce que les deux amarres (28a-28b,29a-29b) et l'extrémité correspondante du câble d'arrêt (22) sont respectivement fixées à un coffre flottant (24, 25).
- Ensemble de liaison (28,29) et de pré-tensionnement à ensemble élastique de traction (42, 43) selon la revendication 19, caractérisé en ce que les deux amarres (28a-28b,29a-29b) et l'extrémité correspondante du câble d'arrêt (22) sont respectivement fixées aux trois sommets d'un cadre triangulaire d'écartement (324,325).
- Ensemble de liaison (28,29) et de pré-tensionnement à ensemble élastique de traction (42,43), selon l'une des revendications 18 à 20, caractérisé en ce que chaque amarre (28b) comporte une portion de haute résistance (44b) et une portion de moindre résistance (46b) pourvue d'un ensemble de rupture (48b) ou de relâchement, les éléments de jonction entre les portions des amarres servant également de points d'attache pour ledit ensemble élastique de traction (42,43).
- Ensemble de liaison (28,29) et de pré-tensionnement à ensemble élastique de traction (42,43), selon l'une des revendications 18 à 21, caractérisé en ce que les amarres (28a-28b,29a-29b) sont équipées chacune d'un tendeur mécanique (52b) de réglage de longueur des amarres et du câble (22).
- Ensemble de liaison (28-29,128-129) et de pré-tensionnement à ensemble élastique de traction (148,149), selon l'une des revendications 15 à 18 ou selon l'une des revendications 18 à 22, caractérisé en ce que chaque ensemble élastique de traction (42-43,148-149) est constitué d'un ou plusieurs faisceaux de brins élastomères enveloppés dans un fourreau de protection en polyester.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0113409A FR2831192B1 (fr) | 2001-10-18 | 2001-10-18 | Installation pour l'arret des bateaux a cable pre-tendu et dispositifs de pre-tension pour cables de securite |
FR0113409 | 2001-10-18 | ||
FR0206777 | 2002-06-03 | ||
FR0206777A FR2840333B1 (fr) | 2002-06-03 | 2002-06-03 | Installation pour l'arret des bateaux a cable pre-tendu et dispositifs de pre-tension du cable |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1304414A1 true EP1304414A1 (fr) | 2003-04-23 |
EP1304414B1 EP1304414B1 (fr) | 2007-03-14 |
Family
ID=26213222
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02292325A Expired - Lifetime EP1304414B1 (fr) | 2001-10-18 | 2002-09-23 | Installation pour l'arret des bateaux a cable pre-tendu et dispositifs de pre-tension du cable |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1304414B1 (fr) |
DE (1) | DE60218799D1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008061707A1 (de) * | 2008-12-12 | 2010-06-17 | Dieter Tamke | Anlegevorrichtung |
WO2017144867A1 (fr) * | 2016-02-22 | 2017-08-31 | Technology From Ideas Limited | Amarrage |
CN113832920A (zh) * | 2021-09-05 | 2021-12-24 | 中国长江三峡集团有限公司 | 沿坡面布设受力的拦阻装置及方法 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3299273B1 (fr) | 2016-09-22 | 2019-02-20 | Neptun Ship Design GmbH | Dispositif et procédé d'accostage et d'appareillage de navires |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1257678A (fr) * | 1960-02-19 | 1961-04-07 | Creusot Forges Ateliers | Dispositif de sécurité pour le freinage des bateaux dans les ouvrages d'art |
GB1039749A (en) * | 1964-07-29 | 1966-08-24 | Shell Int Research | Method and means for mooring a vessel to a buoy, in particular a loading buoy |
US3570441A (en) * | 1968-06-13 | 1971-03-16 | Pneuveyco Equipment Ltd | Marine towline shock absorber |
US3845633A (en) * | 1973-12-13 | 1974-11-05 | Atomic Energy Commission | Interceptor for preventing ship collisions with offshore power stations and the like |
GB1602512A (en) * | 1977-03-11 | 1981-11-11 | Muirhead J I | Apparatus for arresting a floating vessel |
FR2580691A1 (fr) * | 1985-04-23 | 1986-10-24 | Morillon Corvol Courbot Ent | Dispositif de protection assurant l'arret de bateaux |
-
2002
- 2002-09-23 DE DE60218799T patent/DE60218799D1/de not_active Expired - Lifetime
- 2002-09-23 EP EP02292325A patent/EP1304414B1/fr not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1257678A (fr) * | 1960-02-19 | 1961-04-07 | Creusot Forges Ateliers | Dispositif de sécurité pour le freinage des bateaux dans les ouvrages d'art |
GB1039749A (en) * | 1964-07-29 | 1966-08-24 | Shell Int Research | Method and means for mooring a vessel to a buoy, in particular a loading buoy |
US3570441A (en) * | 1968-06-13 | 1971-03-16 | Pneuveyco Equipment Ltd | Marine towline shock absorber |
US3845633A (en) * | 1973-12-13 | 1974-11-05 | Atomic Energy Commission | Interceptor for preventing ship collisions with offshore power stations and the like |
GB1602512A (en) * | 1977-03-11 | 1981-11-11 | Muirhead J I | Apparatus for arresting a floating vessel |
FR2580691A1 (fr) * | 1985-04-23 | 1986-10-24 | Morillon Corvol Courbot Ent | Dispositif de protection assurant l'arret de bateaux |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008061707A1 (de) * | 2008-12-12 | 2010-06-17 | Dieter Tamke | Anlegevorrichtung |
DE102008061707B4 (de) * | 2008-12-12 | 2012-05-16 | Dieter Tamke | Anlegevorrichtung |
WO2017144867A1 (fr) * | 2016-02-22 | 2017-08-31 | Technology From Ideas Limited | Amarrage |
US10829184B2 (en) | 2016-02-22 | 2020-11-10 | Technology From Ideas Limited | Mooring |
CN113832920A (zh) * | 2021-09-05 | 2021-12-24 | 中国长江三峡集团有限公司 | 沿坡面布设受力的拦阻装置及方法 |
Also Published As
Publication number | Publication date |
---|---|
DE60218799D1 (de) | 2007-04-26 |
EP1304414B1 (fr) | 2007-03-14 |
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