1、BSI Standards PublicationMarine energy Wave, tidal and other water current convertersPart 10: Assessment of mooring system for marine energy converters (MECs)PD IEC/TS 62600-10:2015National forewordThis Published Document is the UK implementation of IEC/TS 62600-10:2015.The UK participation in its p
2、reparation was entrusted to TechnicalCommittee PEL/114, Marine energy Wave, tidal and other water currentconverters.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions ofa contract.
3、 Users are responsible for its correct application. The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 83342 7ICS 27.140Compliance with a British Standard cannot confer immunity fromlegal obligations.This Published Document was published under the authority
4、of theStandards Policy and Strategy Committee on 31 August 2015.Amendments/corrigenda issued since publicationDate Text affectedPUBLISHED DOCUMENTPD IEC/TS 62600-10:2015IEC TS 62600-10 Edition 1.0 2015-03 TECHNICAL SPECIFICATION Marine energy Wave, tidal and other water current converters Part 10: A
5、ssessment of mooring system for marine energy converters (MECs) INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 27.140 ISBN 978-2-8322-2431-1 Registered trademark of the International Electrotechnical Commission Warning! Make sure that you obtained this publication from an authorized distributor. colo
6、urinsidePD IEC/TS 62600-10:2015 2 IEC TS 62600-10:2015 IEC 2015 CONTENTS FOREWORD. 6 INTRODUCTION . 8 1 Scope 9 2 Normative references 9 3 Terms and definitions 9 4 Abbreviated terms . 11 5 Principal element . 12 5.1 General . 12 5.2 Mooring and anchor systems . 12 5.3 Design considerations . 12 5.4
7、 Safety and risk consideration . 13 5.5 Analysis procedure 13 5.6 Inspection and maintenance requirements . 13 6 Types of moorings and anchoring systems . 13 6.1 General . 13 6.2 Mooring systems . 13 6.2.1 General . 13 6.2.2 Spread moorings (catenary, taut-line and semi-taut-line) . 13 6.2.3 Single
8、point moorings (SPM) 14 6.3 Mooring line components . 15 6.3.1 General . 15 6.3.2 Chain . 15 6.3.3 Wire rope . 16 6.3.4 Synthetic rope 17 6.3.5 Clump weights . 17 6.3.6 Buoyancy aids . 17 6.3.7 Connectors and accessories . 17 6.4 Anchors types . 18 6.4.1 General . 18 6.4.2 Drag embedment anchor 18 6
9、.4.3 Pile anchor 19 6.4.4 Suction anchor . 19 6.4.5 Gravity installed anchor 20 6.4.6 Gravity anchor . 20 6.4.7 Plate anchor 21 6.4.8 Screw anchor . 21 7 Design consideration . 22 7.1 General . 22 7.2 Limit states . 22 7.2.1 Ultimate limit state (ULS) . 22 7.2.2 Accidental limit state (ALS) 22 7.2.3
10、 Serviceability limit state (SLS) 22 7.2.4 Fatigue limit state (FLS) . 22 7.3 External conditions 23 7.3.1 General . 23 7.3.2 Metocean conditions 23 PD IEC/TS 62600-10:2015IEC TS 62600-10:2015 IEC 2015 3 7.3.3 Marine growth 23 7.3.4 Marine life 23 7.3.5 Environmentally sensitive and protected areas
11、and marine animals . 23 7.3.6 Nearshore impact . 23 7.3.7 Vandalism and misuse . 23 7.3.8 Marine traffic 24 7.4 Assorted loading . 24 7.4.1 General . 24 7.4.2 Low frequency loads 24 7.4.3 Wave frequency loads on mooring components 24 7.4.4 Wave frequency loads on MEC . 25 7.4.5 High frequency loadin
12、g . 25 7.5 Mooring line components . 25 7.5.1 Component strength . 25 7.5.2 Component fatigue life . 25 7.5.3 Redundancy . 25 7.5.4 Clearance 25 7.6 Umbilical considerations 26 7.6.1 Umbilical response . 26 7.6.2 Umbilical strength 26 7.6.3 Umbilical offset and clearance limits . 26 7.7 Anchors 26 7
13、.7.1 Type selection . 26 7.7.2 Holding capacity 26 7.7.3 Sediment and rock conditions . 26 7.7.4 Fluke setting 27 7.7.5 Installation . 27 7.7.6 Proof loading . 27 7.7.7 Directional anchor loading 27 7.7.8 Failure mode 27 7.7.9 Environmental loading 27 8 Safety and risk considerations . 27 8.1 Overvi
14、ew 27 8.2 Risk 27 8.2.1 General . 27 8.2.2 Definition . 28 8.2.3 Consequence types 28 8.2.4 General risk mitigation . 28 8.2.5 ALARP principle . 28 8.3 Risk assessment methodology . 28 8.3.1 General . 28 8.3.2 Methodology flowchart . 29 8.3.3 Basic considerations 30 8.3.4 Probability assessment 31 8
15、.3.5 Consequence classification assessment . 31 8.4 Consequence considerations for mooring failure 31 8.5 Consequence classification . 31 8.5.1 General . 31 8.5.2 Consequence impact considerations . 32 PD IEC/TS 62600-10:2015 4 IEC TS 62600-10:2015 IEC 2015 8.5.3 Waterway navigation impacts . 33 8.5
16、.4 Environmentally sensitive and protected sites . 33 8.5.5 Archaeological sites . 33 8.6 Risk mitigation considerations . 33 8.6.1 Mitigation overview 33 8.6.2 Probability reduction 33 8.6.3 Consequence reduction 33 8.7 Risk acceptance 34 8.7.1 Acceptance overview . 34 8.7.2 Documentation . 34 9 An
17、alysis procedure 34 9.1 General . 34 9.2 Basic considerations . 34 9.3 Analysis procedure overview . 35 9.4 Modelling consideration . 36 9.4.1 General . 36 9.4.2 Mooring and umbilical models 36 9.4.3 Floating unit numerical models . 36 9.4.4 Coupled and uncoupled analysis 37 9.5 Analysis procedure c
18、onsiderations . 37 9.5.1 Metocean directionality 37 9.5.2 Resonant response 37 9.5.3 Dynamic mooring analysis 37 9.5.4 Design situations of ULS 38 9.5.5 Design situations of ALS 38 9.5.6 Design situations of FLS 38 9.5.7 Design situations of SLS 38 9.6 Mooring design criteria 38 9.6.1 Design return
19、period 38 9.6.2 Consequence class design factor . 38 9.6.3 Mooring line component failure . 39 9.6.4 Anchor holding capacity . 39 10 In-service inspection, monitoring, testing, and maintenance 40 10.1 General . 40 10.2 Mooring system proof loading 41 10.3 Component replacement 41 10.4 In air and spl
20、ash zone mooring line sections 41 10.5 Submerged mooring line sections 41 10.6 Commissioning and decommissioning procedures 42 Annex A (informative) Sample mooring design 43 A.1 General . 43 A.2 Problem layout 43 A.3 Consequence class identification . 44 A.4 Mooring design process 47 Bibliography .
21、50 Figure 1 Spread mooring configuration . 14 Figure 2 Catenary anchor leg mooring configuration . 14 PD IEC/TS 62600-10:2015IEC TS 62600-10:2015 IEC 2015 5 Figure 3 Single anchor leg mooring configuration . 15 Figure 4 Turret mooring configuration . 15 Figure 5 Studless and studlink chain 16 Figure
22、 6 Typical wire rope construction 16 Figure 7 Types of connectors . 18 Figure 8 HHP drag embedment anchor . 19 Figure 9 Pile anchor . 19 Figure 10 Suction anchor . 20 Figure 11 Gravity installed anchor 20 Figure 12 Gravity anchor 21 Figure 13 Plate anchor . 21 Figure 14 Screw anchor . 22 Figure 15 G
23、eneral risk methodology flowchart 30 Figure 16 Conceptual mooring analysis procedure 35 Figure A.1 Potential tidal current MEC installation locations A, B; artificial reef C; fish farm D; marine traffic corridor E 43 Figure A.2 Mooring line component minimum ASF for each return period environment 5,
24、 10, 20, 50, and 100 plotted to determine mooring ULS return period 48 Figure A.3 Anchor minimum ASF for each return period environment 5, 10, 20, 50, and 100 plotted to determine anchor ULS return period . 48 Table 1 Potential nearshore impacts . 23 Table 2 Consequence categories . 31 Table 3 Conse
25、quence class . 32 Table 4 Consequence class associated design factors 39 Table 5 Safety factors for ULS and ALS conditions . 39 Table 6 Safety factors for holding capacity of drag anchors factors . 40 Table 7 Safety factors for holding capacity of anchor piles and suction piles . 40 Table 8 Safety f
26、actors for holding capacity of gravity and plate anchors 40 Table A.1 Consequence classification matrix: location A 45 Table A.2 Consequence classification matrix: location B . 46 PD IEC/TS 62600-10:2015 6 IEC TS 62600-10:2015 IEC 2015 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ MARINE ENERGY WAVE,
27、TIDAL AND OTHER WATER CURRENT CONVERTERS Part 10: Assessment of mooring system for marine energy converters (MECs) FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committ
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40、into International Standards. IEC TS 62600-10, which is a technical specification, has been prepared by IEC technical committee 114: Marine energy Wave, tidal and other water current converters. PD IEC/TS 62600-10:2015IEC TS 62600-10:2015 IEC 2015 7 The text of this technical specification is based
41、on the following documents: Enquiry draft Report on voting 114/140/DTS 114/150A/RVC Full information on the voting for the approval of this technical specification can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Dire
42、ctives, Part 2. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC website under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be transformed into an Interna
43、tional standard, reconfirmed, withdrawn, replaced by a revised edition, or amended. A bilingual version of this publication may be issued at a later date. IMPORTANT The colour inside logo on the cover page of this publication indicates that it contains colours which are considered to be useful for t
44、he correct understanding of its contents. Users should therefore print this document using a colour printer. PD IEC/TS 62600-10:2015 8 IEC TS 62600-10:2015 IEC 2015 INTRODUCTION This technical specification defines rules and assessment procedures for the design, installation and maintenance of moori
45、ng system with respect to technical requirements for floating marine energy converters. The proposed work will aim to bring together expert knowledge from the marine energy power and offshore engineering industries in order to formulate a guideline specification of the design, installation and maint
46、enance requirements for mooring system of floating MECs. In addition to safety and ocean environmental requirements, this technical specification focuses on the strength requirements of mooring systems for MECs. PD IEC/TS 62600-10:2015IEC TS 62600-10:2015 IEC 2015 9 MARINE ENERGY WAVE, TIDAL AND OTH
47、ER WATER CURRENT CONVERTERS Part 10: Assessment of mooring system for marine energy converters (MECs) 1 Scope The purpose of this Technical Specification is to provide uniform methodologies for the design and assessment of mooring systems for floating MECs (as defined in TC114 scope). It is intended
48、 to be applied at various stages, from mooring system assessment to design, installation and maintenance of floating MEC plants. This technical specification is applicable to mooring systems for floating MEC units of any size or type in any open water conditions. Some aspects of the mooring system d
49、esign process are more detailed in existing and well-established mooring standards. The intent of this technical specification is to highlight the different requirements of MECs and not duplicate existing standards or processes. While requirements for anchor holding capacity are indicated, detailed geotechnical analysis and design of anchors are beyond the scope of this technical specification. 2 Normative references The following d
