1、BSI Standards PublicationBS EN ISO 19901-8:2015Petroleum and naturalgas industries Specificrequirements for offshorestructuresPart 8: Marine soil investigations (ISO19901-8:2014)BS EN ISO 19901-8:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO19901-8:20
2、15. It is identical to ISO 19901-8:2014.The UK participation in its preparation was entrusted to TechnicalCommittee B/525/12, Design of offshore structures.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include al
3、l the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2015. Published by BSI StandardsLimited 2015ISBN 978 0 580 77536 9ICS 75.180.10Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Sta
4、ndard was published under the authority of theStandards Policy and Strategy Committee on 30 September 2015.Amendments issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 19901-8 September 2015 ICS 75.180.10 English Version Petroleum and natural gas indu
5、stries - Specific requirements for offshore structures - Part 8: Marine soil investigations (ISO 19901-8:2014) Industries du ptrole et du gaz naturel - Exigences spcifiques relatives aux structures en mer - Partie 8: Investigations des sols en mer (ISO 19901-8:2014) Erdl- und Erdgasindustrie - Spezi
6、elle Anforderungen fr Offshore-Anlagen - Teil 8: Meeresbodenuntersuchungen (ISO 19901-8:2014) This European Standard was approved by CEN on 26 August 2015. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the s
7、tatus of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French,
8、 German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cr
9、oatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
10、 United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No
11、. EN ISO 19901-8:2015 EBS EN ISO 19901-8:2015EN ISO 19901-8:2015 (E) 3 Foreword The text of ISO 19901-8:2014 has been prepared by Technical Committee ISO/TC 67 “Materials, equipment and offshore structures for petroleum, petrochemical and natural gas industries” of the International Organization for
12、 Standardization (ISO) and has been taken over as EN ISO 19901-8:2015 by Technical Committee CEN/TC 12 “Materials, equipment and offshore structures for petroleum, petrochemical and natural gas industries” the secretariat of which is held by AFNOR. This European Standard shall be given the status of
13、 a national standard, either by publication of an identical text or by endorsement, at the latest by March 2016, and conflicting national standards shall be withdrawn at the latest by March 2016. Attention is drawn to the possibility that some of the elements of this document may be the subject of p
14、atent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
15、Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey a
16、nd the United Kingdom. Endorsement notice The text of ISO 19901-8:2014 has been approved by CEN as EN ISO 19901-8:2015 without any modification. BS EN ISO 19901-8:2015ISO 19901-8:2014(E)Contents PageForeword vIntroduction vi1 Scope . 12 Normative references 13 Terms and definitions . 24 Symbols, uni
17、ts and abbreviated terms 64.1 Symbols . 64.2 Units . 74.3 Abbreviated terms . 75 Objectives, planning and requirements . 95.1 Objectives. 95.2 Planning 95.3 Scope of work 125.4 Health, safety and environmental (HSE) requirements for marine operations .135.5 Other requirements . 146 Deployment of inv
18、estigation equipment 156.1 Deployment modes 156.2 Accuracy of vertical depth measurements . 176.3 Positioning requirements . 186.4 Interaction of investigation equipment with the seafloor 187 Drilling and logging 197.1 General 197.2 Project-specific drilling requirements . 197.3 Drilling objectives
19、and selection of drilling equipment and procedures .207.4 Drilling operations plan . 207.5 Recording of drilling parameters . 207.6 Borehole geophysical logging 218 In situ testing .218.1 General 218.2 General requirements for the documentation of in situ tests 228.3 Cone penetration test (CPT/CPTU)
20、 228.4 Pore pressure dissipation test (PPDT) 268.5 Ball and T-bar penetration tests 288.6 Seismic cone penetration test (SCPT/SCPTU) 338.7 Field vane test (FVT) . 348.8 Other in situ tests 389 Sampling .399.1 General 399.2 Purpose of sampling 399.3 Sampling systems 409.4 Selection of samplers 409.5
21、Sample recovery considerations . 429.6 Handling, transport and storage of samples 4310 Laboratory testing .4410.1 General 4410.2 Presentation of laboratory test results . 4610.3 Instrumentation, calibration and data acquisition .4710.4 Preparation of soil specimens for testing . 4710.5 Evaluation of
22、 intact sample quality 49 ISO 2014 All rights reserved iiiBS EN ISO 19901-8:2015ISO 19901-8:2014(E)11 Reporting .5011.1 Definition of reporting requirements . 5011.2 Presentation of field operations and measured and derived geotechnical parameters .5011.3 Data interpretation and evaluation of repres
23、entative geotechnical parameters .51Annex A (informative) Objectives, planning and requirements53Annex B (informative) Deployment of investigation equipment .59Annex C (informative) Drilling and logging 67Annex D (informative) In situ testing 75Annex E (informative) Sampling 81Annex F (informative)
24、Laboratory testing .91Annex G (informative) Reporting 127Bibliography . 132iv ISO 2014 All rights reservedBS EN ISO 19901-8:2015ISO 19901-8:2014(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of
25、preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental,
26、 in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/
27、IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility
28、 that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of paten
29、t declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as informa
30、tion about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 67, Materials, equipment and offshore structures for petroleum, petrochemical and natural gas indu
31、stries, SC 7, Offshore structures.ISO 19901 consists of the following parts, under the general title Petroleum and natural gas industries Specific requirements for offshore structures: Part 1: Metocean design and operating considerations Part 2: Seismic design procedures and criteria Part 3: Topside
32、s structure Part 4: Geotechnical and foundation design considerations Part 5: Weight control during engineering and construction Part 6: Marine operations Part 7: Stationkeeping systems for floating offshore structures and mobile offshore units Part 8: Marine soil investigations ISO 2014 All rights
33、reserved vBS EN ISO 19901-8:2015ISO 19901-8:2014(E)IntroductionThe series of International Standards applicable to offshore structures, ISO 19900 to ISO 19906, constitutes a common basis covering those aspects that address design requirements and assessments of all offshore structures used by the pe
34、troleum and natural gas industries worldwide. Through their application, the intention is to achieve reliability levels appropriate for manned and unmanned offshore structures, whatever the nature or combination of the materials used.It is important to recognize that structural integrity is a concep
35、t comprising models for describing actions, structural analyses, design rules, safety elements, workmanship, quality control procedures and national requirements, all of which are mutually dependent. The modification of one aspect of design in isolation can disturb the balance of reliability inheren
36、t in the overall concept of structural integrity. The implications involved in modifications, therefore, need to be considered in relation to the overall reliability of all offshore structural systems.This part of ISO 19901 is applicable for marine soil investigation, which is only one of many possi
37、ble marine site investigations as illustrated in Figure 1. The terminology used in Figure 1 and other important terminology are defined and given in Clause 3.The scope of a marine soil investigation, such as field programme, equipment to be used, laboratory testing programme, soil parameters to be e
38、stablished and reporting should be defined in project specifications based on important factors such as type of structures involved, type of soil conditions expected, regional or site-specific investigation, preliminary or final soil investigations.The reporting can comprise anything from field data
39、 only to reporting of soil parameters. An example report format is given in Annex G, Table G.1, but for each project the final reporting structure can be adjusted by deleting inapplicable sections, or by adding new sections.This part of ISO 19901 gives requirements, recommendations and guidelines fo
40、r the planning and execution of marine soil investigations and is applicable from the planning phase to reporting of soil parameters. It is important to use documented methods when soil parameters are established, and to refer to these methods in the report.In situ and laboratory testing methods inc
41、luded in this part of ISO 19901 are selected based on their importance in marine soil investigation practice, availability in commercial geotechnical laboratories and the existence of an accepted testing procedure.Figure 1 Marine soil investigations shown as one of many types of marine site investig
42、ationsSeabed characterization can require several types of site investigations, for example marine soil investigations and geophysical investigations including geological and geohazard evaluations. For each project, the types of site investigations required are usually defined in project specificati
43、ons. Also of importance for proper seabed characterization is consideration of required investigation equipment and its deployment mode(s) and methods, in order to acquire adequate quality soil data to the target depth.This part of ISO 19901 is applicable for marine soil investigations at any water
44、depth and to any depth below seafloor which can be reached with the tools used.vi ISO 2014 All rights reservedBS EN ISO 19901-8:2015ISO 19901-8:2014(E)Use of this part of ISO 19901 is based on the assumptions that: adequate communication takes place between geotechnical personnel involved in marine
45、soil investigations and the personnel responsible for foundation design, for construction and for installation of the offshore structures; soil parameters are collected, recorded and interpreted by qualified personnel; the project-specific scope of work for marine soil investigations is defined by o
46、ne or more project specifications.Seabed soils can vary widely, and experience gained at one location is not necessarily applicable at another. The scope of a soil investigation for one type of structure is not necessarily adequate for another. Extra caution is therefore necessary when dealing with
47、unconventional soils or unconventional foundation concepts. Marine soil investigations include both offshore and nearshore soil investigations, which can provide very different challenges.The detailed requirements for equipment and methods given in this part of ISO 19901 are only applicable if relev
48、ant for the scope of work defined in the project specifications.This part of ISO 19901 is intended to provide flexibility in the choice of soil investigation techniques without hindering innovation.The primary objectives of this part of ISO 19901 are to provide requirements and guidance for how the
49、most important aspects of a marine soil investigation should be performed to obtain reliable soil parameters based on documented methods.In this part of ISO 19901, in accordance with the latest edition of the ISO/IEC Directives, Part 2, the following verbal forms are used: shall and shall not are used to indicate requirements strictly to be followed in order to comply with the document and from which no deviation is permitted; should and should not are used to indicate that among several possibilities one is recommended as particularly
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