CA2561449A1 - Floating pontoon berthing facility for ferries and ships - Google Patents
Floating pontoon berthing facility for ferries and ships Download PDFInfo
- Publication number
- CA2561449A1 CA2561449A1 CA002561449A CA2561449A CA2561449A1 CA 2561449 A1 CA2561449 A1 CA 2561449A1 CA 002561449 A CA002561449 A CA 002561449A CA 2561449 A CA2561449 A CA 2561449A CA 2561449 A1 CA2561449 A1 CA 2561449A1
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- Canada
- Prior art keywords
- pontoon
- bow
- stern
- ramp
- facility
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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
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/34—Pontoons
-
- 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
- B63B35/34—Pontoons
- B63B35/38—Rigidly-interconnected pontoons
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
A berthing facility for use in moving vehicles between a shore facility and a bow/stern-loading RORO ferry, having a substantially rigid floating pontoon comprising several modules joined one to another, a two-tier vehicle ramp running from the shore to the pontoon, means for pivotally securing the pontoon in the vicinity of the ramp and means for resiliently restraining the pontoon to permit limited controlled pivotal movement about a preferred orientation. The berthing facility also including, hydraulically dampened fenders and wingwalls for dissipating vessel impact force, an integral turning dolphin, apron assemblies for providing continuity of vehicle pathways between the ramp and a ferry, and means for raising and lowering the ramp.
Claims (41)
1. A berthing facility for use in moving vehicles between a bow/stern-loading ferry floating in a body of water and a shore facility, the berthing facility comprising:
a) a floating pontoon having a bow/stern receiving section for receiving the bow or stern of a bow/stern-loading ferry, and a projecting finger against which may lie a side of a ferry having its bow or stern at the receiving section;
b) means for pivotally securing the bow/stern receiving section wherein the pontoon may pivot about a pivot axis in the vicinity of the bow/stern receiving section;
c) means for maintaining the projecting finger and thus the pontoon in a preferred pivotal orientation wherein the means resiliently resists lateral movement of the projecting finger from the preferred orientation;
d) a ramp having a shore end and a pontoon end, and having a vehicle pathway wherein vehicles may be driven on the vehicle pathway along the ramp;
e) means at a shore facility for pivotally supporting the ramp shore end; and f) means at the pontoon in the vicinity of the bow/stern receiving section for pivotally supporting the ramp pontoon end;
wherein, in use, force associated with a ferry impacting the projecting finger during a docking maneuver may be absorbed through lateral movement of the projecting finger;
the ramp may pivot relative to the shore facility about a generally horizontal axis and relative to the pontoon about another generally horizontal axis so as to accommodate changes in water level relative to the shore facility, and the ramp may be used to convey vehicles between a shore facility and a bow/stern-loading ferry having its bow or stern at the receiving section.
a) a floating pontoon having a bow/stern receiving section for receiving the bow or stern of a bow/stern-loading ferry, and a projecting finger against which may lie a side of a ferry having its bow or stern at the receiving section;
b) means for pivotally securing the bow/stern receiving section wherein the pontoon may pivot about a pivot axis in the vicinity of the bow/stern receiving section;
c) means for maintaining the projecting finger and thus the pontoon in a preferred pivotal orientation wherein the means resiliently resists lateral movement of the projecting finger from the preferred orientation;
d) a ramp having a shore end and a pontoon end, and having a vehicle pathway wherein vehicles may be driven on the vehicle pathway along the ramp;
e) means at a shore facility for pivotally supporting the ramp shore end; and f) means at the pontoon in the vicinity of the bow/stern receiving section for pivotally supporting the ramp pontoon end;
wherein, in use, force associated with a ferry impacting the projecting finger during a docking maneuver may be absorbed through lateral movement of the projecting finger;
the ramp may pivot relative to the shore facility about a generally horizontal axis and relative to the pontoon about another generally horizontal axis so as to accommodate changes in water level relative to the shore facility, and the ramp may be used to convey vehicles between a shore facility and a bow/stern-loading ferry having its bow or stern at the receiving section.
2. The berthing facility of claim 1, wherein the means for pivotally securing the bow/stern receiving section comprises:
a) a generally vertically oriented pylon, attached to the ground under the water and sized to project from the water surface; and b) a pylon opening in the pontoon, having inner walls within which the pylon is disposed.
a) a generally vertically oriented pylon, attached to the ground under the water and sized to project from the water surface; and b) a pylon opening in the pontoon, having inner walls within which the pylon is disposed.
3. The berthing facility of claim 2, further comprising at least one energy absorbing buffer attached to the pylon opening inner walls for absorbing forces associated with non-pivotal relative movement as between the pylon and the pontoon.
4. The berthing facility of claim 2 or 3, further comprising:
a) a plurality of piles driven into the ground under the water; and b) a pylon base attached to the piles and to which the pylon is attached.
a) a plurality of piles driven into the ground under the water; and b) a pylon base attached to the piles and to which the pylon is attached.
5. The berthing facility of any one of claims 1 to 4, wherein the means for maintaining the projecting finger in the preferred pivotal orientation comprises:
a) a chain securing means mounted to the projecting finger;
b) two anchor means, a first anchor means disposed at the ground under the water off one side of the projecting finger and a second anchor means disposed at the ground under the water off the other side of the projecting finger;
c) a first chain having one end of its operative length connected to the first anchor means and having the other end secured in the chain securing means; and d) a second chain having one end of its operative length connected to the second anchor means and having the other end secured in the chain securing means.
a) a chain securing means mounted to the projecting finger;
b) two anchor means, a first anchor means disposed at the ground under the water off one side of the projecting finger and a second anchor means disposed at the ground under the water off the other side of the projecting finger;
c) a first chain having one end of its operative length connected to the first anchor means and having the other end secured in the chain securing means; and d) a second chain having one end of its operative length connected to the second anchor means and having the other end secured in the chain securing means.
6. The berthing facility of claim 5, wherein the first anchor means or the second anchor means is a gravity anchor or a rock socket.
7. The berthing facility of claim 5 or 6, wherein the the projecting finger has a distal end, being the end of the projecting finger furthest from the bow/stern receiving section, and the chain securing means is proximate the distal end of the projecting finger.
8. The berthing facility of claim 5, 6 or 7, wherein the anchor means are located relative to the chain securing means such that the chains, when viewed from above, run substantially perpendicularly relative to the longitudinal axis of the projecting finger.
9. The berthing facility of any one of claims 5 to 8, further comprising additional combinations of anchor means and chains connected one to the other, with each chain having an end of its operative length secured in the chain securing means.
10. The berthing facility of any one of claims 5 to 9, wherein the chain securing means comprises a generally vertically disposed chain post having:
a) chain keepers at its upper end for engaging the links of the chains; and b) a hawse at its lower end through which the chains exit the chain securing means;
wherein the hawse is submerged to a sufficient depth to provide vertical clearance between the chains and a ferry using the berthing facility.
a) chain keepers at its upper end for engaging the links of the chains; and b) a hawse at its lower end through which the chains exit the chain securing means;
wherein the hawse is submerged to a sufficient depth to provide vertical clearance between the chains and a ferry using the berthing facility.
11. The berthing facility of claim 10, further comprising:
a) a chain post shaft between the top and bottom of the pontoon, within which the chain post is disposed; and b) a plurality of rubber bumpers, each attached to an inner wall of the shaft and to the chain post, so as to resiliently suspend the chain post within the shaft.
a) a chain post shaft between the top and bottom of the pontoon, within which the chain post is disposed; and b) a plurality of rubber bumpers, each attached to an inner wall of the shaft and to the chain post, so as to resiliently suspend the chain post within the shaft.
12. The berthing facility of any one of claims 1 to 11, wherein, for accommodating ferries having two pairs of vehicle access ports, a lower pair of vehicle access ports and an upper pair of vehicle access ports, the ramp comprises two vehicle pathways, an upper vehicle pathway and a lower vehicle pathway, with the vehicle pathways in a fixed spaced-apart relationship.
13. The berthing facility of claim 12, further comprising:
a) a lower level apron pivotally attached to the ramp pontoon end in the vicinity of the lower vehicle pathway, wherein the pivotal orientation of the lower level apron relative to the ramp is controllable so as to provide vehicle path continuity between the lower vehicle pathway and a lower vehicle access port;
b) an upper level apron, having a proximal end and a distal end, and pivotally attached at its proximal end to the ramp pontoon end in the vicinity of the upper vehicle pathway, wherein the pivotal orientation of the upper level apron relative to the ramp is controllable; and c) an articulating apron pivotally connected to the distal end of the upper level apron, wherein the pivotal orientation of the articulating apron relative to the upper level apron is controllable;
wherein the pivotal orientation of the upper level apron and the articulating apron may be adjusted to accommodate ferries having different vertical distances between their upper and lower access ports so as to provide vehicle path continuity between the upper vehicle pathway and an upper vehicle access port.
a) a lower level apron pivotally attached to the ramp pontoon end in the vicinity of the lower vehicle pathway, wherein the pivotal orientation of the lower level apron relative to the ramp is controllable so as to provide vehicle path continuity between the lower vehicle pathway and a lower vehicle access port;
b) an upper level apron, having a proximal end and a distal end, and pivotally attached at its proximal end to the ramp pontoon end in the vicinity of the upper vehicle pathway, wherein the pivotal orientation of the upper level apron relative to the ramp is controllable; and c) an articulating apron pivotally connected to the distal end of the upper level apron, wherein the pivotal orientation of the articulating apron relative to the upper level apron is controllable;
wherein the pivotal orientation of the upper level apron and the articulating apron may be adjusted to accommodate ferries having different vertical distances between their upper and lower access ports so as to provide vehicle path continuity between the upper vehicle pathway and an upper vehicle access port.
14. The berthing facility of claim 13, wherein the articulating apron comprises two sub-aprons pivotally connected one to the other, wherein the pivotal orientation of one sub-apron relative to the other sub-apron is controllable.
15. The berthing facility of any one of claims 1 to 14, further comprising means for adjusting the vertical disposition of the ramp pontoon end relative to the pontoon so that the ramp pontoon end may be raised or lowered to accommodate different ferries having vehicle access ports at different heights above the water surface.
16. The berthing facility of claim 15, wherein the means for adjusting the vertical disposition of the ramp pontoon end comprises two pairs of cross-connected ramp lift hydraulic cylinders having lower ends connected to the pontoon and upper ends connected to the ramp in the vicinity of the ramp pontoon end.
17. The berthing facility of any one of claims 1 to 16, further comprising a plurality of fenders arrayed about the periphery of the pontoon for absorbing vessel impact forces, each fender comprising:
a) a swing arm, having one end pivotally attached to the pontoon;
b) a fender panel attached to an end of the swing arm opposite the end attached to the pontoon; and c) a hydraulic damper having one end attached to the pontoon and the other end attached to the swing arm, and comprising:
i) a ram having a piston and a cylinder;
ii) an accumulator, having a nitrogen charge chamber and a hydraulic oil chamber, and separating means, moveable responsive to pressure differentials, for separating the nitrogen charge and hydraulic oil;
iii) a conduit providing fluid communication between the interior of the cylinder and the hydraulic oil chamber; and iv) a restricting orifice in line between the cylinder and the hydraulic oil chamber for restricting flow of hydraulic oil as between them;
wherein, when a vessel impacts the fender panel with sufficient force, the ram is compressed forcing hydraulic fluid from the cylinder into the hydraulic oil chamber in the accumulator via the restricting orifice, thus compressing the nitrogen charge.
a) a swing arm, having one end pivotally attached to the pontoon;
b) a fender panel attached to an end of the swing arm opposite the end attached to the pontoon; and c) a hydraulic damper having one end attached to the pontoon and the other end attached to the swing arm, and comprising:
i) a ram having a piston and a cylinder;
ii) an accumulator, having a nitrogen charge chamber and a hydraulic oil chamber, and separating means, moveable responsive to pressure differentials, for separating the nitrogen charge and hydraulic oil;
iii) a conduit providing fluid communication between the interior of the cylinder and the hydraulic oil chamber; and iv) a restricting orifice in line between the cylinder and the hydraulic oil chamber for restricting flow of hydraulic oil as between them;
wherein, when a vessel impacts the fender panel with sufficient force, the ram is compressed forcing hydraulic fluid from the cylinder into the hydraulic oil chamber in the accumulator via the restricting orifice, thus compressing the nitrogen charge.
18. The berthing facility of any one of claims 1 to 17, wherein the projecting finger has a distal end, being the end of the projecting finger furthest from the bow/stern receiving section and the distal end of the projecting finger is curved and has turning fenders arrayed about its curved periphery, wherein the distal end of the projecting finger is suitable for use as a turning dolphin.
19. The berthing facility of claim 18, wherein each of the turning fenders arrayed about the periphery of the distal end of the projecting finger comprises:
a) a swing arm, having one end pivotally attached to the pontoon;
b) a fender panel attached to an end of the swing arm opposite the end attached to the pontoon; and c) a hydraulic damper having one end attached to the pontoon and the other end attached to the swing arm, and comprising:
i) a ram having a piston and a cylinder;
ii) an accumulator, having a nitrogen charge chamber and a hydraulic oil chamber, and separating means, moveable responsive to pressure differentials, for separating the nitrogen charge and hydraulic oil;
iii) a conduit providing fluid communication between the interior of the cylinder and the hydraulic oil chamber; and iv) a restricting orifice in line between the cylinder and the hydraulic oil chamber for restricting flow of hydraulic oil as between them;
wherein, when a vessel impacts the fender panel with sufficient force, the ram is compressed forcing hydraulic fluid from the cylinder into the hydraulic oil chamber in the accumulator via the restricting orifice, thus compressing the nitrogen charge.
a) a swing arm, having one end pivotally attached to the pontoon;
b) a fender panel attached to an end of the swing arm opposite the end attached to the pontoon; and c) a hydraulic damper having one end attached to the pontoon and the other end attached to the swing arm, and comprising:
i) a ram having a piston and a cylinder;
ii) an accumulator, having a nitrogen charge chamber and a hydraulic oil chamber, and separating means, moveable responsive to pressure differentials, for separating the nitrogen charge and hydraulic oil;
iii) a conduit providing fluid communication between the interior of the cylinder and the hydraulic oil chamber; and iv) a restricting orifice in line between the cylinder and the hydraulic oil chamber for restricting flow of hydraulic oil as between them;
wherein, when a vessel impacts the fender panel with sufficient force, the ram is compressed forcing hydraulic fluid from the cylinder into the hydraulic oil chamber in the accumulator via the restricting orifice, thus compressing the nitrogen charge.
20. The berthing facility of any one of claims 1 to 19, further comprising two wingwalls resiliently flexibly connected to the pontoon in the vicinity of the receiving section for guiding the end of a ferry into a desired position for loading and unloading, and for absorbing vessel impacts.
21. The berthing facility of claim 20, wherein a hydraulic damper is connected between each wingwall and the pontoon, the hydraulic damper comprising:
a) a ram having a piston and a cylinder;
b) an accumulator, having a nitrogen charge chamber and a hydraulic oil chamber, and separating means, moveable responsive to pressure differentials, for separating the nitrogen charge and hydraulic oil;
c) a conduit providing fluid communication between the interior of the cylinder and the hydraulic oil chamber; and d) a restricting orifice in line between the cylinder and the hydraulic oil chamber for restricting flow of hydraulic oil as between them;
wherein, when a vessel impacts the wingwall with sufficient force, the ram is compressed forcing hydraulic fluid from the cylinder into the hydraulic oil chamber in the accumulator via the restricting orifice, thus compressing the nitrogen charge.
a) a ram having a piston and a cylinder;
b) an accumulator, having a nitrogen charge chamber and a hydraulic oil chamber, and separating means, moveable responsive to pressure differentials, for separating the nitrogen charge and hydraulic oil;
c) a conduit providing fluid communication between the interior of the cylinder and the hydraulic oil chamber; and d) a restricting orifice in line between the cylinder and the hydraulic oil chamber for restricting flow of hydraulic oil as between them;
wherein, when a vessel impacts the wingwall with sufficient force, the ram is compressed forcing hydraulic fluid from the cylinder into the hydraulic oil chamber in the accumulator via the restricting orifice, thus compressing the nitrogen charge.
22. The berthing facility of any one of claims 1 to 21, wherein the pontoon comprises a plurality of concrete modules joined one to another.
23. The berthing facility of claim 22, wherein a) each of module has at least one join end comprising:
i) a circumferential flange having a planar face;
ii) a concavity surrounded by the flange;
iii) an internal work chamber; and iv) a plurality of bores running from the work chamber to the flange face; and b) the join between two modules comprises:
i) a plurality of nuts;
ii) a plurality of threadbars, each running from the work chamber of one module to the work chamber of the other module via a bore in the one module and an aligned bore in the other module, and each having a nut threaded on each end within a work chamber, the nuts tightened so as to tension the threadbars; and iii) a cast-in-place cement-grout key spanning the two concavities;
wherein the threadbar/nuts combinations resist tension across the join, and the cast-in-place key impedes relative shearing and rotational movement as between the modules.
i) a circumferential flange having a planar face;
ii) a concavity surrounded by the flange;
iii) an internal work chamber; and iv) a plurality of bores running from the work chamber to the flange face; and b) the join between two modules comprises:
i) a plurality of nuts;
ii) a plurality of threadbars, each running from the work chamber of one module to the work chamber of the other module via a bore in the one module and an aligned bore in the other module, and each having a nut threaded on each end within a work chamber, the nuts tightened so as to tension the threadbars; and iii) a cast-in-place cement-grout key spanning the two concavities;
wherein the threadbar/nuts combinations resist tension across the join, and the cast-in-place key impedes relative shearing and rotational movement as between the modules.
24. The berthing facility of claim 23, wherein the bores are the inner bores of pipes cast in the modules.
25. The berthing facility of claim 23 or 24, wherein: each concavity has substantially rectangular inner walls; and the concavities are substantially aligned when the modules are aligned for joining one to the other, whereby the cast-in-place key is a substantially rectangular parallelepiped.
26. The berthing facility of claim 23, 24 or 25, wherein the join ends of two joined-together modules have complementary sockets and pins for use in aligning the modules during assembly of the pontoon.
27. A berthing facility for use in moving vehicles between a shore facility and a bow/stern-loading ferry floating in a body of water and having two pairs of vehicle access ports, a pair of lower vehicle access ports and a pair of upper vehicle access ports, the berthing facility comprising:
a) a floating pontoon having a bow/stern receiving section for receiving the bow or stern of a bow/stern-loading ferry, and a projecting finger against which may lie a side of a ferry having its bow or stern at the receiving section;
b) means for pivotally securing the bow/stern receiving section wherein the pontoon may pivot about a pivot axis in the vicinity of the bow/stern receiving section;
c) means for maintaining the projecting finger and thus the pontoon in a preferred pivotal orientation wherein the means resiliently resists lateral movement of the projecting finger from the preferred orientation;
d) a ramp having a shore end and a pontoon end, and having two vehicle pathways, an upper vehicle pathway and a lower vehicle pathway, with the vehicle pathways in a fixed spaced-apart relationship, wherein vehicles may be driven on the vehicle pathways along the ramp;
e) means at the pontoon in the vicinity of the bow/stern receiving section for adjustably pivotally supporting the ramp pontoon end, wherein the ramp pontoon end may be raised or lowered relative to the pontoon to accommodate different ferries having their lower vehicle access ports at different heights above the water surface;
f) a lower level apron pivotally attached to the ramp pontoon end in the vicinity of the lower vehicle pathway, wherein the pivotal orientation of the lower level apron relative to the ramp is controllable so as to provide vehicle path continuity between the lower vehicle pathway and a lower vehicle access port;
g) an upper level apron assembly comprising:
1. an upper level apron, having a proximal end and a distal end, and pivotally attached at its proximal end to the ramp pontoon end in the vicinity of the upper vehicle pathway, wherein the pivotal orientation of the upper level apron relative to the ramp is controllable;
2. an articulating apron pivotally connected to the distal end of the upper level apron, the articulating apron comprising two sub-aprons pivotally connected one to the other, wherein the pivotal orientation of one sub-apron relative to the other sub-apron is controllable, and wherein the pivotal orientation of the articulating apron relative to the upper level apron is controllable;
wherein the pivotal orientation of the upper level apron and the articulating apron may be adjusted to accommodate ferries having different vertical distances between their upper and lower access ports so as to provide vehicle path continuity between the upper vehicle pathway and an upper vehicle access port; and h) means at a shore facility for pivotally supporting the ramp shore end;
wherein, in use, force associated with a ferry impacting the projecting finger during a docking maneuver may be absorbed through lateral movement of the projecting finger;
the ramp may pivot relative to the shore facility about a generally horizontal axis and relative to the pontoon about another generally horizontal axis so as to accommodate changes in water level relative to the shore facility, and the ramp may be used to convey vehicles between a shore facility and the upper and lower vehicle access ports of a bow/stern-loading ferry having its bow or stern at the receiving section.
a) a floating pontoon having a bow/stern receiving section for receiving the bow or stern of a bow/stern-loading ferry, and a projecting finger against which may lie a side of a ferry having its bow or stern at the receiving section;
b) means for pivotally securing the bow/stern receiving section wherein the pontoon may pivot about a pivot axis in the vicinity of the bow/stern receiving section;
c) means for maintaining the projecting finger and thus the pontoon in a preferred pivotal orientation wherein the means resiliently resists lateral movement of the projecting finger from the preferred orientation;
d) a ramp having a shore end and a pontoon end, and having two vehicle pathways, an upper vehicle pathway and a lower vehicle pathway, with the vehicle pathways in a fixed spaced-apart relationship, wherein vehicles may be driven on the vehicle pathways along the ramp;
e) means at the pontoon in the vicinity of the bow/stern receiving section for adjustably pivotally supporting the ramp pontoon end, wherein the ramp pontoon end may be raised or lowered relative to the pontoon to accommodate different ferries having their lower vehicle access ports at different heights above the water surface;
f) a lower level apron pivotally attached to the ramp pontoon end in the vicinity of the lower vehicle pathway, wherein the pivotal orientation of the lower level apron relative to the ramp is controllable so as to provide vehicle path continuity between the lower vehicle pathway and a lower vehicle access port;
g) an upper level apron assembly comprising:
1. an upper level apron, having a proximal end and a distal end, and pivotally attached at its proximal end to the ramp pontoon end in the vicinity of the upper vehicle pathway, wherein the pivotal orientation of the upper level apron relative to the ramp is controllable;
2. an articulating apron pivotally connected to the distal end of the upper level apron, the articulating apron comprising two sub-aprons pivotally connected one to the other, wherein the pivotal orientation of one sub-apron relative to the other sub-apron is controllable, and wherein the pivotal orientation of the articulating apron relative to the upper level apron is controllable;
wherein the pivotal orientation of the upper level apron and the articulating apron may be adjusted to accommodate ferries having different vertical distances between their upper and lower access ports so as to provide vehicle path continuity between the upper vehicle pathway and an upper vehicle access port; and h) means at a shore facility for pivotally supporting the ramp shore end;
wherein, in use, force associated with a ferry impacting the projecting finger during a docking maneuver may be absorbed through lateral movement of the projecting finger;
the ramp may pivot relative to the shore facility about a generally horizontal axis and relative to the pontoon about another generally horizontal axis so as to accommodate changes in water level relative to the shore facility, and the ramp may be used to convey vehicles between a shore facility and the upper and lower vehicle access ports of a bow/stern-loading ferry having its bow or stern at the receiving section.
28. The berthing facility of claim 27, wherein the means for raising or lowering the ramp pontoon end relative to the pontoon comprises two pairs of cross-connected ramp lift hydraulic cylinders having lower ends connected to the pontoon and upper ends connected to the ramp.
29. A berthing facility for use in moving vehicles between a bow/stern-loading ferry floating in a body of water and a shore facility, the berthing facility comprising:
a) a floating pontoon having a bow/stern receiving section for receiving the bow or stern of a bow/stern-loading ferry, and a projecting finger against which may lie a side of a ferry having its bow or stern at the receiving section, wherein the pontoon comprises a plurality of concrete modules joined one to another, wherein i) each module has at least one join end comprising:
A) a circumferential flange having a planar face;
B) a concavity surrounded by the flange;
C) an internal work chamber; and D) a plurality of bores running from the work chamber to the flange face;
and ii) the join between two modules comprises:
A) a plurality of nuts;
B) a plurality of threadbars, each running from the work chamber of one module to the work chamber of the other module via a bore in the one module and an aligned bore in the other module, and each threadbar having a nut threaded on each end within a work chamber, the nuts tightened so as to tension the threadbars; and C) a cast-in-place cement-grout key spanning the two concavities;
wherein the threadbars and nuts resist tension across the join, and the cast-in-place key impedes relative shearing and rotational movement as between the modules;
b) means for pivotally securing the bow/stern receiving section wherein the pontoon may pivot about a pivot axis in the vicinity of the bow/stern receiving section;
c) means for maintaining the projecting finger and thus the pontoon in a preferred pivotal orientation wherein the means resiliently resists lateral movement of the projecting finger from the preferred orientation;
d) a ramp having a shore end and a pontoon end, and having a vehicle pathway wherein vehicles may be driven on the vehicle pathway along the ramp;
e) means at a shore facility for pivotally supporting the ramp shore end; and f) means at the pontoon in the vicinity of the bow/stern receiving section for pivotally supporting the ramp pontoon end;
wherein, in use, force associated with a ferry impacting the projecting finger during a docking maneuver may be absorbed through lateral movement of the projecting finger;
the ramp may pivot relative to the shore facility about a generally horizontal axis and relative to the pontoon about another generally horizontal axis so as to accommodate changes in water level relative to the shore facility, and the ramp may be used to convey vehicles between a shore facility and a bow/stern-loading ferry having its bow or stern at the receiving section.
a) a floating pontoon having a bow/stern receiving section for receiving the bow or stern of a bow/stern-loading ferry, and a projecting finger against which may lie a side of a ferry having its bow or stern at the receiving section, wherein the pontoon comprises a plurality of concrete modules joined one to another, wherein i) each module has at least one join end comprising:
A) a circumferential flange having a planar face;
B) a concavity surrounded by the flange;
C) an internal work chamber; and D) a plurality of bores running from the work chamber to the flange face;
and ii) the join between two modules comprises:
A) a plurality of nuts;
B) a plurality of threadbars, each running from the work chamber of one module to the work chamber of the other module via a bore in the one module and an aligned bore in the other module, and each threadbar having a nut threaded on each end within a work chamber, the nuts tightened so as to tension the threadbars; and C) a cast-in-place cement-grout key spanning the two concavities;
wherein the threadbars and nuts resist tension across the join, and the cast-in-place key impedes relative shearing and rotational movement as between the modules;
b) means for pivotally securing the bow/stern receiving section wherein the pontoon may pivot about a pivot axis in the vicinity of the bow/stern receiving section;
c) means for maintaining the projecting finger and thus the pontoon in a preferred pivotal orientation wherein the means resiliently resists lateral movement of the projecting finger from the preferred orientation;
d) a ramp having a shore end and a pontoon end, and having a vehicle pathway wherein vehicles may be driven on the vehicle pathway along the ramp;
e) means at a shore facility for pivotally supporting the ramp shore end; and f) means at the pontoon in the vicinity of the bow/stern receiving section for pivotally supporting the ramp pontoon end;
wherein, in use, force associated with a ferry impacting the projecting finger during a docking maneuver may be absorbed through lateral movement of the projecting finger;
the ramp may pivot relative to the shore facility about a generally horizontal axis and relative to the pontoon about another generally horizontal axis so as to accommodate changes in water level relative to the shore facility, and the ramp may be used to convey vehicles between a shore facility and a bow/stern-loading ferry having its bow or stern at the receiving section.
30. The berthing facility of claim 29, wherein the bores are the inner bores of pipes cast in the modules.
31. The berthing facility of claim 29 or 30, wherein each concavity has substantially rectangular inner walls and the concavities are substantially aligned when the modules are aligned for joining one to the other, whereby the cast-in-place key is a substantially rectangular parallelepiped.
32. The berthing facility of claim 29, 30 or 31, wherein the join ends of two joined-together modules have complementary sockets and pins for use in aligning the modules during assembly of the pontoon.
33. A berthing facility for use in moving vehicles between a bow/stern-loading ferry floating in a body of water and a shore facility, the berthing facility comprising:
a) a floating pontoon having a bow/stern receiving section for receiving the bow or stern of a bow/stern-loading ferry, and a projecting finger against which may lie a side of a ferry having its bow or stern at the receiving section;
b) a plurality of fenders arrayed about the periphery of the pontoon for absorbing vessel impact forces, each fender comprising:
i) a swing arm, having one end pivotally attached to the pontoon;
ii) a fender panel attached to an end of the swing arm opposite the end attached to the pontoon; and iii) a hydraulic damper having one end attached to the pontoon and the other end attached to the swing arm, and comprising:
A) a ram having a piston and a cylinder;
B) an accumulator, having a nitrogen charge chamber and a hydraulic oil chamber, and separating means, moveable responsive to pressure differentials, for separating the nitrogen charge and hydraulic oil;
C) a conduit providing fluid communication between the interior of the cylinder and the hydraulic oil chamber; and D) a restricting orifice in line between the cylinder and the hydraulic oil chamber for restricting flow of hydraulic oil as between them;
wherein, when a vessel impacts the fender panel with sufficient force, the ram is compressed forcing hydraulic fluid from the cylinder into the hydraulic oil chamber in the accumulator via the restricting orifice, thus compressing the nitrogen charge;
c) means for pivotally securing the bow/stern receiving section wherein the pontoon may pivot about a pivot axis in the vicinity of the bow/stern receiving section;
d) means for maintaining the projecting finger and thus the pontoon in a preferred pivotal orientation wherein the means resiliently resists lateral movement of the projecting finger from the preferred orientation;
e) a ramp having a shore end and a pontoon end, and having a vehicle pathway wherein vehicles may be driven on the vehicle pathway along the ramp;
f) means at a shore facility for pivotally supporting the ramp shore end; and g) means at the pontoon in the vicinity of the bow/stern receiving section for pivotally supporting the ramp pontoon end;
wherein, in use, force associated with a ferry impacting the projecting finger during a docking maneuver may be absorbed through lateral movement of the projecting finger and by one or more fenders; the ramp may pivot relative to the shore facility about a generally horizontal axis and relative to the pontoon about another generally horizontal axis so as to accommodate changes in water level relative to the shore facility, and the ramp may be used to convey vehicles between a shore facility and a bow/stern-loading ferry having its bow or stern at the receiving section.
a) a floating pontoon having a bow/stern receiving section for receiving the bow or stern of a bow/stern-loading ferry, and a projecting finger against which may lie a side of a ferry having its bow or stern at the receiving section;
b) a plurality of fenders arrayed about the periphery of the pontoon for absorbing vessel impact forces, each fender comprising:
i) a swing arm, having one end pivotally attached to the pontoon;
ii) a fender panel attached to an end of the swing arm opposite the end attached to the pontoon; and iii) a hydraulic damper having one end attached to the pontoon and the other end attached to the swing arm, and comprising:
A) a ram having a piston and a cylinder;
B) an accumulator, having a nitrogen charge chamber and a hydraulic oil chamber, and separating means, moveable responsive to pressure differentials, for separating the nitrogen charge and hydraulic oil;
C) a conduit providing fluid communication between the interior of the cylinder and the hydraulic oil chamber; and D) a restricting orifice in line between the cylinder and the hydraulic oil chamber for restricting flow of hydraulic oil as between them;
wherein, when a vessel impacts the fender panel with sufficient force, the ram is compressed forcing hydraulic fluid from the cylinder into the hydraulic oil chamber in the accumulator via the restricting orifice, thus compressing the nitrogen charge;
c) means for pivotally securing the bow/stern receiving section wherein the pontoon may pivot about a pivot axis in the vicinity of the bow/stern receiving section;
d) means for maintaining the projecting finger and thus the pontoon in a preferred pivotal orientation wherein the means resiliently resists lateral movement of the projecting finger from the preferred orientation;
e) a ramp having a shore end and a pontoon end, and having a vehicle pathway wherein vehicles may be driven on the vehicle pathway along the ramp;
f) means at a shore facility for pivotally supporting the ramp shore end; and g) means at the pontoon in the vicinity of the bow/stern receiving section for pivotally supporting the ramp pontoon end;
wherein, in use, force associated with a ferry impacting the projecting finger during a docking maneuver may be absorbed through lateral movement of the projecting finger and by one or more fenders; the ramp may pivot relative to the shore facility about a generally horizontal axis and relative to the pontoon about another generally horizontal axis so as to accommodate changes in water level relative to the shore facility, and the ramp may be used to convey vehicles between a shore facility and a bow/stern-loading ferry having its bow or stern at the receiving section.
34. The berthing facility of claim 33, wherein the projecting finger has a distal end, being the end of the projecting finger furthest from the bow/stern receiving section and the distal end of the projecting finger is curved and has a plurality of the fenders arrayed about its curved periphery, whereby the distal end of the projecting finger is suitable for use as a turning dolphin.
35. The berthing facility of claim 33 or 34, further comprising two wingwalls resiliently flexibly connected to the pontoon in the vicinity of the receiving section for guiding the end of a ferry into the desired position for loading and unloading, and for absorbing vessel impacts.
36. The berthing facility of claim 35, wherein a hydraulic damper is connected between each wingwall and the pontoon, the hydraulic damper comprising:
a) a ram having a piston and a cylinder;
b) an accumulator, having a nitrogen charge chamber and a hydraulic oil chamber, and separating means, moveable responsive to pressure differentials, for separating the nitrogen charge and hydraulic oil;
c) a conduit providing fluid communication between the interior of the cylinder and the hydraulic oil chamber; and d) a restricting orifice in line between the cylinder and the hydraulic oil chamber for restricting flow of hydraulic oil as between them;
wherein, when a vessel impacts the wingwall with sufficient force, the ram is compressed forcing hydraulic fluid from the cylinder into the hydraulic oil chamber in the accumulator via the restricting orifice, thus compressing the nitrogen charge.
a) a ram having a piston and a cylinder;
b) an accumulator, having a nitrogen charge chamber and a hydraulic oil chamber, and separating means, moveable responsive to pressure differentials, for separating the nitrogen charge and hydraulic oil;
c) a conduit providing fluid communication between the interior of the cylinder and the hydraulic oil chamber; and d) a restricting orifice in line between the cylinder and the hydraulic oil chamber for restricting flow of hydraulic oil as between them;
wherein, when a vessel impacts the wingwall with sufficient force, the ram is compressed forcing hydraulic fluid from the cylinder into the hydraulic oil chamber in the accumulator via the restricting orifice, thus compressing the nitrogen charge.
37. A berthing facility for use in moving vehicles between a bow/stern-loading ferry floating in a body of water and a shore facility, the berthing facility comprising:
a) a floating pontoon having a bow/stern receiving section for receiving the bow or stern of a bow/stern-loading ferry, and a projecting finger against which may lie a side of a ferry having its bow or stern at the receiving section, the end of the projecting finger furthest from the bow/stern receiving section curved so as to be useable as a turning dolphin;
b) means for pivotally securing the bow/stern receiving section wherein the pontoon may pivot about a pivot axis in the vicinity of the bow/stern receiving section;
c) means for maintaining the projecting finger and thus the pontoon in a preferred pivotal orientation wherein the means resiliently resists lateral movement of the projecting finger from the preferred orientation;
d) a ramp having a shore end and a pontoon end, and having a vehicle pathway wherein vehicles may be driven on the vehicle pathway along the ramp;
e) means at a shore facility for pivotally supporting the ramp shore end; and f) means at the pontoon in the vicinity of the bow/stern receiving section for pivotally supporting the ramp pontoon end;
wherein, in use, force associated with a ferry impacting the projecting finger during a docking maneuver may be absorbed through lateral movement of the projecting finger;
the ramp may pivot relative to the shore facility about a generally horizontal axis and relative to the pontoon about another generally horizontal axis so as to accommodate changes in water level relative to the shore facility, and the ramp may be used to convey vehicles between a shore facility and a bow/stern-loading ferry having its bow or stern at the receiving section.
a) a floating pontoon having a bow/stern receiving section for receiving the bow or stern of a bow/stern-loading ferry, and a projecting finger against which may lie a side of a ferry having its bow or stern at the receiving section, the end of the projecting finger furthest from the bow/stern receiving section curved so as to be useable as a turning dolphin;
b) means for pivotally securing the bow/stern receiving section wherein the pontoon may pivot about a pivot axis in the vicinity of the bow/stern receiving section;
c) means for maintaining the projecting finger and thus the pontoon in a preferred pivotal orientation wherein the means resiliently resists lateral movement of the projecting finger from the preferred orientation;
d) a ramp having a shore end and a pontoon end, and having a vehicle pathway wherein vehicles may be driven on the vehicle pathway along the ramp;
e) means at a shore facility for pivotally supporting the ramp shore end; and f) means at the pontoon in the vicinity of the bow/stern receiving section for pivotally supporting the ramp pontoon end;
wherein, in use, force associated with a ferry impacting the projecting finger during a docking maneuver may be absorbed through lateral movement of the projecting finger;
the ramp may pivot relative to the shore facility about a generally horizontal axis and relative to the pontoon about another generally horizontal axis so as to accommodate changes in water level relative to the shore facility, and the ramp may be used to convey vehicles between a shore facility and a bow/stern-loading ferry having its bow or stern at the receiving section.
38. A berthing facility for use in moving vehicles between a shore facility, and a bow/stern-loading ferry floating in a body of water and having two pairs of vehicle access ports, a pair of lower vehicle access ports and a pair of upper vehicle access ports, the berthing facility comprising:
a) a floating pontoon having a bow/stern receiving section for receiving the bow or stern of a bow/stern-loading ferry, and a projecting finger against which may lie a side of a ferry having its bow or stern at the receiving section, the projecting finger having a distal end, being the end of the projecting finger furthest from the bow/stern receiving section;
b) a pylon assembly comprising:
i) a generally vertically oriented pylon, attached to the ground under the water and sized to project from the water surface; and ii) a pylon opening in the pontoon in the vicinity of the bow/stern receiving section, having inner walls within which the pylon is disposed;
whereby the pylon assembly pivotally secures the bow/stern receiving section wherein the pontoon may pivot about the pylon;
c) an anchor assembly, comprising:
i) a chain securing means mounted to the projecting finger in the vicinity of the distal end of the projecting finger;
ii) two anchor means, a first anchor means disposed at the ground under the water off one side of the projecting finger and a second anchor means disposed at the ground under the water off the other side of the projecting finger;
iii) a first chain having one end of its operative length connected to the first anchor means and having the other end secured in the chain securing means; and iv) a second chain having one end of its operative length connected to the second anchor means and having the other end secured in the chain securing means;
whereby the anchor assembly resiliently resists lateral movement of the projecting finger and thus the pontoon from a preferred pivotal orientation;
d) a ramp having a shore end and a pontoon end, and having two vehicle pathways, an upper vehicle pathway and a lower vehicle pathway, with the vehicle pathways in a fixed spaced-apart relationship, wherein vehicles may be driven on the vehicle pathways along the ramp;
e) means at the pontoon in the vicinity of the bow/stern receiving section for adjustably pivotally supporting the ramp pontoon end, wherein the ramp pontoon end may be raised or lowered relative to the pontoon to accommodate different ferries having their lower vehicle access ports at different heights above the water surface;
f) a lower level apron pivotally attached to the ramp pontoon end in the vicinity of the lower vehicle pathway, wherein the pivotal orientation of the lower level apron relative to the ramp is controllable so as to provide vehicle path continuity between the lower vehicle pathway and a lower vehicle access port;
g) an upper level apron assembly comprising:
1. an upper level apron, having a proximal end and a distal end, and pivotally attached at its proximal end to the ramp pontoon end in the vicinity of the upper vehicle pathway, wherein the pivotal orientation of the upper level apron relative to the ramp is controllable;
2. an articulating apron pivotally connected to the distal end of the upper level apron, the articulating apron comprising two sub-aprons pivotally connected one to the other, wherein the pivotal orientation of one sub-apron relative to the other sub-apron is controllable, and wherein the pivotal orientation of the articulating apron relative to the upper level apron is controllable;
wherein the pivotal orientation of the upper level apron and the articulating apron may be adjusted to accommodate ferries having different vertical distances between their upper and lower access ports so as to provide vehicle path continuity between the upper vehicle pathway and an upper vehicle access port; and h) means at a shore facility for pivotally supporting the ramp shore end;
wherein, in use, force associated with a ferry impacting the projecting finger during a docking maneuver may be absorbed through lateral movement of the projecting finger;
the ramp may pivot relative to the shore facility about a generally horizontal axis and relative to the pontoon about another generally horizontal axis so as to accommodate changes in water level relative to the shore facility, and the ramp may be used to convey vehicles between a shore facility and the upper and lower vehicle access ports of a bow/stern-loading ferry having its bow or stern at the receiving section.
a) a floating pontoon having a bow/stern receiving section for receiving the bow or stern of a bow/stern-loading ferry, and a projecting finger against which may lie a side of a ferry having its bow or stern at the receiving section, the projecting finger having a distal end, being the end of the projecting finger furthest from the bow/stern receiving section;
b) a pylon assembly comprising:
i) a generally vertically oriented pylon, attached to the ground under the water and sized to project from the water surface; and ii) a pylon opening in the pontoon in the vicinity of the bow/stern receiving section, having inner walls within which the pylon is disposed;
whereby the pylon assembly pivotally secures the bow/stern receiving section wherein the pontoon may pivot about the pylon;
c) an anchor assembly, comprising:
i) a chain securing means mounted to the projecting finger in the vicinity of the distal end of the projecting finger;
ii) two anchor means, a first anchor means disposed at the ground under the water off one side of the projecting finger and a second anchor means disposed at the ground under the water off the other side of the projecting finger;
iii) a first chain having one end of its operative length connected to the first anchor means and having the other end secured in the chain securing means; and iv) a second chain having one end of its operative length connected to the second anchor means and having the other end secured in the chain securing means;
whereby the anchor assembly resiliently resists lateral movement of the projecting finger and thus the pontoon from a preferred pivotal orientation;
d) a ramp having a shore end and a pontoon end, and having two vehicle pathways, an upper vehicle pathway and a lower vehicle pathway, with the vehicle pathways in a fixed spaced-apart relationship, wherein vehicles may be driven on the vehicle pathways along the ramp;
e) means at the pontoon in the vicinity of the bow/stern receiving section for adjustably pivotally supporting the ramp pontoon end, wherein the ramp pontoon end may be raised or lowered relative to the pontoon to accommodate different ferries having their lower vehicle access ports at different heights above the water surface;
f) a lower level apron pivotally attached to the ramp pontoon end in the vicinity of the lower vehicle pathway, wherein the pivotal orientation of the lower level apron relative to the ramp is controllable so as to provide vehicle path continuity between the lower vehicle pathway and a lower vehicle access port;
g) an upper level apron assembly comprising:
1. an upper level apron, having a proximal end and a distal end, and pivotally attached at its proximal end to the ramp pontoon end in the vicinity of the upper vehicle pathway, wherein the pivotal orientation of the upper level apron relative to the ramp is controllable;
2. an articulating apron pivotally connected to the distal end of the upper level apron, the articulating apron comprising two sub-aprons pivotally connected one to the other, wherein the pivotal orientation of one sub-apron relative to the other sub-apron is controllable, and wherein the pivotal orientation of the articulating apron relative to the upper level apron is controllable;
wherein the pivotal orientation of the upper level apron and the articulating apron may be adjusted to accommodate ferries having different vertical distances between their upper and lower access ports so as to provide vehicle path continuity between the upper vehicle pathway and an upper vehicle access port; and h) means at a shore facility for pivotally supporting the ramp shore end;
wherein, in use, force associated with a ferry impacting the projecting finger during a docking maneuver may be absorbed through lateral movement of the projecting finger;
the ramp may pivot relative to the shore facility about a generally horizontal axis and relative to the pontoon about another generally horizontal axis so as to accommodate changes in water level relative to the shore facility, and the ramp may be used to convey vehicles between a shore facility and the upper and lower vehicle access ports of a bow/stern-loading ferry having its bow or stern at the receiving section.
39. A concrete pontoon module for use as a component of a substantially rigid floating pontoon in a berthing facility for bow/stern-loading ferries, the module having a join end for use in making a join with another module with a similar join end, using nuts, threadbars and cement grout, the join end comprising:
a) a circumferential flange having a planar face;
b) a concavity surrounded by the flange;
c) an internal work chamber; and d) a plurality of bores running from the work chamber to the face of the flange;
wherein, the module may be joined to another module having a similar join end, with a plurality of threadbars, each running from the work chamber of one module to the work chamber of the other module via a bore in the one module and an aligned bore in the other module, and each having a nut threaded on each end within a work chamber, the nuts tightened so as to tension the threadbars; and a cast-in-place cement-grout key spanning the two concavities, wherein the threadbars and nuts resist tension across the joint between the modules, and the cast-in-place key impedes relative shearing and rotational movement as between the modules.
a) a circumferential flange having a planar face;
b) a concavity surrounded by the flange;
c) an internal work chamber; and d) a plurality of bores running from the work chamber to the face of the flange;
wherein, the module may be joined to another module having a similar join end, with a plurality of threadbars, each running from the work chamber of one module to the work chamber of the other module via a bore in the one module and an aligned bore in the other module, and each having a nut threaded on each end within a work chamber, the nuts tightened so as to tension the threadbars; and a cast-in-place cement-grout key spanning the two concavities, wherein the threadbars and nuts resist tension across the joint between the modules, and the cast-in-place key impedes relative shearing and rotational movement as between the modules.
40. A concrete pontoon for use in a berthing facility for bow/stern-loading ferries, the pontoon comprising:
a) a bow/stern receiving section for receiving the bow or stern of a bow/stern-loading ferry;
and b) a projecting finger against which may lie a side of a ferry having its bow or stern at the receiving section;
wherein the pontoon is made up of a plurality of concrete pontoon modules joined one to another, wherein:
c) each module has at least one join end comprising:
i) a circumferential flange having a planar face;
ii) a concavity surrounded by the flange;
iii) an internal work chamber; and iv) a plurality of bores running from the work chamber to the flange face; and d) the join between two modules comprises:
i) a plurality of nuts;
ii) a plurality of threadbars, each running from the work chamber of one module to the work chamber of the other module via a bore in the one module and an aligned bore in the other module, and each having a nut threaded on each end within a work chamber, the nuts tightened so as to tension the threadbars; and iii) a cast-in-place cement-grout key spanning the two concavities;
wherein the threadbars and nuts resist tension across the join, and the cast-in-place key impedes relative shearing and rotational movement as between the modules.
a) a bow/stern receiving section for receiving the bow or stern of a bow/stern-loading ferry;
and b) a projecting finger against which may lie a side of a ferry having its bow or stern at the receiving section;
wherein the pontoon is made up of a plurality of concrete pontoon modules joined one to another, wherein:
c) each module has at least one join end comprising:
i) a circumferential flange having a planar face;
ii) a concavity surrounded by the flange;
iii) an internal work chamber; and iv) a plurality of bores running from the work chamber to the flange face; and d) the join between two modules comprises:
i) a plurality of nuts;
ii) a plurality of threadbars, each running from the work chamber of one module to the work chamber of the other module via a bore in the one module and an aligned bore in the other module, and each having a nut threaded on each end within a work chamber, the nuts tightened so as to tension the threadbars; and iii) a cast-in-place cement-grout key spanning the two concavities;
wherein the threadbars and nuts resist tension across the join, and the cast-in-place key impedes relative shearing and rotational movement as between the modules.
41. A method for attaching one floating concrete pontoon module to another floating concrete pontoon module, each module having a join end comprising: a circumferential flange having a planar face; a concavity surrounded by the flange; an internal work chamber;
and a plurality of bores running from the work chamber to the face of the flange; and at least one of the flanges having a gasket material bonded thereto; the method comprising the steps of:
a) drawing the modules into alignment;
b) inserting threadbars into the bores via one or the other work chamber such that the threadbars run from one work chamber to the other work chamber via a bore in one module and an aligned bore in the other module;
c) threading a nut onto each end of each threadbar;
d) compressing the gasket material between the flanges sufficiently to prevent the water in which the modules are floating from flowing into a cavity defined by the two concavities;
e) dewatering the cavity;
f) once the cavity is dewatered, placing cement grout into the cavity; and g) tensioning the threadbars by tightening the nuts.
and a plurality of bores running from the work chamber to the face of the flange; and at least one of the flanges having a gasket material bonded thereto; the method comprising the steps of:
a) drawing the modules into alignment;
b) inserting threadbars into the bores via one or the other work chamber such that the threadbars run from one work chamber to the other work chamber via a bore in one module and an aligned bore in the other module;
c) threading a nut onto each end of each threadbar;
d) compressing the gasket material between the flanges sufficiently to prevent the water in which the modules are floating from flowing into a cavity defined by the two concavities;
e) dewatering the cavity;
f) once the cavity is dewatered, placing cement grout into the cavity; and g) tensioning the threadbars by tightening the nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2561449A CA2561449C (en) | 2006-09-28 | 2006-09-28 | Floating pontoon berthing facility for ferries and ships |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2561449A CA2561449C (en) | 2006-09-28 | 2006-09-28 | Floating pontoon berthing facility for ferries and ships |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2561449A1 true CA2561449A1 (en) | 2008-03-28 |
| CA2561449C CA2561449C (en) | 2010-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2561449A Active CA2561449C (en) | 2006-09-28 | 2006-09-28 | Floating pontoon berthing facility for ferries and ships |
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| Country | Link |
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| CA (1) | CA2561449C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108229053A (en) * | 2018-01-25 | 2018-06-29 | 中国船舶工业集团公司第七0八研究所 | A kind of bay section intensive analysis vertical force loading method for becoming strong frame spacing |
| CN108755575A (en) * | 2018-07-04 | 2018-11-06 | 中交第四航务工程勘察设计院有限公司 | Environment protection steel structure berth a kind of easy to assemble and can be recycled |
| CN112823118A (en) * | 2018-09-21 | 2021-05-18 | 多士达科技有限公司 | Automatic mooring device for a vessel |
| CN117734894A (en) * | 2024-01-22 | 2024-03-22 | 连云港港口集团有限公司 | Anti-collision protective tug device |
-
2006
- 2006-09-28 CA CA2561449A patent/CA2561449C/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108229053A (en) * | 2018-01-25 | 2018-06-29 | 中国船舶工业集团公司第七0八研究所 | A kind of bay section intensive analysis vertical force loading method for becoming strong frame spacing |
| CN108755575A (en) * | 2018-07-04 | 2018-11-06 | 中交第四航务工程勘察设计院有限公司 | Environment protection steel structure berth a kind of easy to assemble and can be recycled |
| CN108755575B (en) * | 2018-07-04 | 2024-05-28 | 中交第四航务工程勘察设计院有限公司 | Environment-friendly steel structure berth easy to disassemble and assemble and capable of being recycled |
| CN112823118A (en) * | 2018-09-21 | 2021-05-18 | 多士达科技有限公司 | Automatic mooring device for a vessel |
| CN117734894A (en) * | 2024-01-22 | 2024-03-22 | 连云港港口集团有限公司 | Anti-collision protective tug device |
| CN117734894B (en) * | 2024-01-22 | 2024-08-20 | 连云港港口集团有限公司 | Anti-collision protective tug device |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2561449C (en) | 2010-11-30 |
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