developments in berth lay-out - amazon s3 · safe mooring is paramount for vessel, port and...
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1 © Copyright - Port of Rotterdam
Title
9th International Harbour Masters Congress │ Bruges - Ghent, Belgium │26th - 30th May 2014
Willem Hoebée
Developments in berth layout Recent examples in the Port of Rotterdam
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Agenda
• Introduction
• Components of mooring system
• Mooring plan
• Design of berth layout
• Recent examples in the Port of Rotterdam
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Introduction
Safe mooring is paramount for vessel, port and terminal
• Breaking loose of vessels may damage other vessels and
infrastructure
• Poorly moored vessels may slow down cargo operations, even
may damage cranes and cause personal injuries
Developments
• Larger vessels with smaller crews, not always well trained
• Berth lay-out not always up to standard (not always a common
understanding of various mooring components)
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Lateral area approximately: 400 * 42,50 m = 17.000 m2
Area of three soccer fields: 3 * 100 * 50 m = 15.000 m2
Wind force 5 Beaufort: lateral force: 105 ton = 3 tugs
Wind force 6 Beaufort: lateral force: 170 ton = 4 tugs (operational limit)
Wind force 10 Beaufort: lateral force: 650 ton = survival conditions
CMA CGM Marco Polo
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Design phase Operational phase
Vessel - Ship owner OCIMF/ NI - Ship owner
- different types - Naval architect SNAME - Mariner
- mooring equipment - Classification IACS (safe mooring)
Infrastructure - Port Authority - Port authority
- quays/ jetties/ buoys - Terminal OCIMF - Terminal
- bollards/ fenders - Civil engineer PIANC/ EAU (maintenance aspects)
Interface - Harbourmaster IHMA - Harbourmaster
(port safety/ efficiency)
Introduction - aspects of mooring in a port Different stakeholders in different worlds with different interests and different standards
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Components of mooring system
and mooring plan
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Components of mooring system (1)
1. Mooring winch on board vessel
• Maximum Holding Capacity (MHC)
• Winch will render when MHC is exceeded
2. Mooring line
• Minimum Breaking Load (MBL) on certificate (when new!)
• Practise: MBL less for older mooring lines (wear and tear)
3. Mooring bollard or Quick Release Hook (QRH) ashore
• Safe Working Load (SWL)
up to maximum angle of mooring line e.g. 45 degrees
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Components of mooring system (2)
Break of winch should render before reaching
60% of MBL of mooring lines
• Brake of winch: weakest link
• If brake fails: first mooring line will break
• Bollard ashore: strongest component
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Mooring plan (1)
A good mooring plan complies with the following:
• Length of mooring lines between fairlead and bollard / QRH
between 35 and 50 meters
= > sufficient elasticity for mooring lines
• Same length, elasticity and tension for mooring lines in the same
service (e.g. all breast lines or spring lines)
=> mooring lines work together
• Maximum vertical angle of mooring lines 30 degrees
= > horizontal component sufficient to keep vessel alongside
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Mooring plan (2)
Mooring lines 1 and 2 should have same
specifications: length, elasticity and tension
Maximum vertical angle of mooring lines:
30 degrees
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Mooring plan (3)
• Spring lines positioned parallel to
longitudinal centre line of the vessel
• Breast lines positioned as perpendicular as
possible to longitudinal centre line of vessel
• Sometimes (at container and dry bulk
terminals) impossible to meet both ideal
horizontal and vertical angles of mooring lines
due to location of bollards ashore.
=>In that case focus first on meeting
maximum vertical angles
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Additional means for mooring vessels - when e.g. expecting strong winds
• Paying out additional lines from vessel to shore
• Additional lines should have same length and tension
• Extra lines to “storm bollards” are not very effective
• Ordering tugs to keep the vessel alongside (pushing)
• Note: availability of tugs, costs and emissions
• Paying out shore lines to the vessel and tensioning these
ashore with hydraulic cylinders (ShoreTension system)
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Design of berth layout
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Design of berth layout (1) - Safe working load of bollards / hooks
• Tanker berths: Mooring Equipment Guidelines (OCIMF)
• Hooks as strong as MBL of strongest line anticipated
(one line per hook)
• Dry bulk / container berths: no international rules
• Bollards as strong as MBL of strongest line anticipated
• More lines on one bollard: SWL to be increased accordingly
• Note: MBL of mooring lines of new container vessels 130 tons!
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Design of berth layout (2) - Position and number of bollards / hooks
• Mooring plan(s) of design ship(s) starting point for berth design
• Dictates position and number of bollards or hooks
• Tanker berths (jetties): Mooring Equipment Guidelines (OCIMF)
• Discuss details (access ladders, railings etc.) with linesmen
• Dry bulk / container berths: “Mooring and Anchoring Ships”
(Nautical Institute)
• Optimise intermediate distance between bollards
• Use double bollards (pairs), allowing vessels more flexibility
• Locate bollards land inwards improving vertical angle of (head) lines
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Vessel type
L x B x T (in ballast)
[m]
Number of
spring lines
Number of
breast lines
MHC
winch brake
[ton]
MBL lines
[ton]
Fairlead forward
above waterline
[m]
Fairlead aft
above waterline
[m]
Handymax 183 x 32 x 6.0 2 4 30 60 10.90 8.80
Aframax tanker 251 x 43 x 8.0 2 6 35 72 15.00 12.50
VLCC 334 x 58 x 11.0 2 8 50 103 22.00 13.70
Suezmax tanker 276 x 45 x 9.0 2 6 42 83 18.00 13.10
Panamax tanker 246 x 32 x 6.6 2 6 32 64 12.50 10.80
Container vessel
> 8,000 TEU
< 12,000 TEU
346 x 43 x 10.0 2 4 75 130 20.00 17.50
Container vessel
> 12,000 TEU 400 x 56 x 11.0 2 6 75 130 23.00 20.50
Design of berth layout (3) - Dimensions of typical design vessels
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Recent examples in the
Port of Rotterdam
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Examples in the Port of Rotterdam
• Container terminals
• Tanker berths
• Dolphins/ buoys
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Examples in the Port of Rotterdam - Container terminals
ggvvvvv Location Year
of
Construction
Bollard
type
Spacing
of
Bollards
SWL
[tons]
Europahaven 1980ies in pairs 20 m 100 tons
Amazonehaven 1990ies in pairs 20 m 150 tons
Euromax terminal 2008 in pairs 15 m 240 tons
APMT and RWG
(Maasvlakte 2)
2013 in pairs 15 m 240 tons
15/ 20 m
Spacing of bollards (pairs)
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Examples in the Port of Rotterdam - Container terminals 80ies and 90ies
2 0
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Examples in the Port of Rotterdam - Container terminals 80ies and 90ies
2 1
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Examples in the Port of Rotterdam - Container terminal - 2008
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Examples in the Port of Rotterdam - Container terminals - 2014
Details quay wall
Bollards in pairs
Cone fenders with panels
“Protection caps” preventing
ropes with eye splice
falling on “inland barge
Bollards”
Ladders for barges
Ladders for drowning persons
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AMPT terminal
under
construction
2014
• a
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RWG terminal
under
construction
2014
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Examples in the Port of Rotterdam - Tanker berth along the Nieuwe Maas – Argos quay 8 - 2013
2 6
• Sufficient distance bollards from quayside
• Bollards for breasting lines
• Quick release hooks for spring lines
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Calandkanaal (1)
Dolphins 80
• Layby berth
• STS transfer
• Design for flexible
usage according to
OCIMF MEG3
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Calandkanaal (2)
Dolphins 80
• Layby berth
• STS transfer
• Design for flexible
usage according to
OCIMF MEG3
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Dolphins 90 and 91
at Maasvlakte 2
(under construction)
Layout - OCIMF
2 breasting dolphins
2 * 3 mooring dolphins
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Concluding remarks
• In these examples the harbourmaster has been
involved from conceptual design up until delivery of
infrastructure advising according to international
standards (OCIMF, NI, Handbook Quay walls)
• In various stages of the project the harbourmaster
also mobilises pilots, tug masters and boatmen
providing (operational) nautical knowledge
• In this way – in our view - optimal infrastructure will
be constructed ready to daily service our customers
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Thank you
for your attention