RULES FOR CLASSIFICATION Ships Edition October 2015 Part 5 Ship types Chapter 10 Vessels for special operations The content of this service document is the subject of intellectual property rights reserved by DNV GL AS ("DNV GL"). The user accepts that it is prohibited by anyone else but DNV GL and/or its licensees to offer and/or perform classification, certification and/or verification services, including the issuance of certificates and/or declarations of conformity, wholly or partly, on the basis of and/or pursuant to this document whether free of charge or chargeable, without DNV GL's prior written consent. DNV GL is not responsible for the consequences arising from any use of this document by others. The electronic pdf version of this document, available free of charge from http://www.dnvgl.com, is the officially binding version. DNV GL AS FOREWORD DNV GL rules for classification contain procedural and technical requirements related to obtaining and retaining a class certificate. The rules represent all requirements adopted by the Society as basis for classification. © DNV GL AS October 2015 Any comments may be sent by e-mail to [email protected] If any person suffers loss or damage which is proved to have been caused by any negligent act or omission of DNV GL, then DNV GL shall pay compensation to such person for his proved direct loss or damage. However, the compensation shall not exceed an amount equal to ten times the fee charged for the service in question, provided that the maximum compensation shall never exceed USD 2 million. In this provision "DNV GL" shall mean DNV GL AS, its direct and indirect owners as well as all its affiliates, subsidiaries, directors, officers, employees, agents and any other acting on behalf of DNV GL. CHANGES – CURRENT t n e r This is a new document. r u The rules enter into force 1 January 2016. c - s e g n a h C 0 1 r e t p a h C 5 t r a P Rules for classification: Ships — DNVGL-RU-SHIP-Pt5Ch10. Edition October 2015 Page 3 Vessels for special operations DNV GL AS s t CONTENTS n e t n Changes – current...................................................................................................... 3 o C Section 1 General..................................................................................................... 13 0 1 Introduction..........................................................................................13 1 1.1 Introduction.......................................................................................13 r e 1.2 Scope............................................................................................... 13 t p 1.3 Application.........................................................................................13 a 2 Class notations..................................................................................... 13 h C 2.1 Ship type notations............................................................................ 13 5 2.2 Additional notations............................................................................ 16 t 3 Definitions............................................................................................ 17 r a 3.1 Terms............................................................................................... 17 P 4 Documentation......................................................................................18 4.1 Documentation requirements............................................................... 18 5 Certification.......................................................................................... 32 5.1 Certification requirements....................................................................32 6 Testing..................................................................................................36 6.1 Testing during newbuilding.................................................................. 36 Section 2 Crane vessel............................................................................................. 37 1 Introduction..........................................................................................37 1.1 Introduction.......................................................................................37 1.2 Scope............................................................................................... 37 1.3 Application.........................................................................................37 1.4 Testing requirements.......................................................................... 37 2 Hull....................................................................................................... 37 2.1 General............................................................................................. 37 3 Systems and equipment....................................................................... 38 3.1 Crane with substructure...................................................................... 38 4 Stability................................................................................................ 38 4.1 Application.........................................................................................38 4.2 General intact stability criteria for heavy lift operations........................... 39 4.3 Intact stability for sudden loss of hook load...........................................39 4.4 Alternative intact stability criteria during heavy crane lift......................... 41 4.5 Alternative damage stability criteria during heavy crane lift......................42 Rules for classification: Ships — DNVGL-RU-SHIP-Pt5Ch10. Edition October 2015 Page 4 Vessels for special operations DNV GL AS s Section 3 Cable laying vessel................................................................................... 43 t 1 Introduction..........................................................................................43 n e 1.1 Introduction.......................................................................................43 t n 1.2 Scope............................................................................................... 43 o C 1.3 Application.........................................................................................43 2 Hull....................................................................................................... 43 0 1 2.1 Hull structural strength....................................................................... 43 r 2.2 Special hull configuration.................................................................... 43 e t 3 Equipment.............................................................................................43 p 3.1 Equipment for mooring and anchoring.................................................. 43 a h C Section 4 Pipe laying vessel.....................................................................................44 5 1 Introduction..........................................................................................44 t r 1.1 Introduction.......................................................................................44 a 1.2 Scope............................................................................................... 44 P 1.3 Application.........................................................................................44 2 Hull....................................................................................................... 44 2.1 Hull structural strength....................................................................... 44 2.2 Special hull configuration.................................................................... 44 3 Equipment.............................................................................................44 3.1 Equipment for mooring and anchoring.................................................. 44 Section 5 Semi-submersible heavy transport vessel.................................................45 1 Introduction..........................................................................................45 1.1 Introduction.......................................................................................45 1.2 Scope............................................................................................... 45 1.3 Application.........................................................................................45 1.4 Testing requirements.......................................................................... 45 2 Hull....................................................................................................... 45 2.1 Hull girder strength............................................................................ 45 2.2 Local strength....................................................................................46 2.3 Integrated high-pressure tanks............................................................ 46 2.4 Primary supporting members............................................................... 46 2.5 Fatigue strength.................................................................................46 3 Systems and equipment....................................................................... 47 3.1 Additional anchors.............................................................................. 47 3.2 Watertight seals for propeller axle and rudder stock................................47 4 Stability................................................................................................ 47 4.1 Stability requirements in transit condition..............................................47