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CSA ISO 19901-4:17 (R2022)
Petroleum and natural gas industries — Specific requirements for offshore structures — Part 4: Geotechnical and foundation design considerations (Adopted ISO 19901-4:2016, second edition, 2016-07-15)- 발행일 : 2017-01-01
- 발행기관 : CSA
상세정보
| 분야 | |
|---|---|
| 적용범위 | Preface This is the second edition of CAN/CSA-ISO 19901-4, Petroleum and natural gas industries - Specific requirements for offshore structures - Part 4: Geotechnical and foundation design considerations, which is an adoption without modification of the identically titled ISO (International Organization for Standardization) Standard 19901-4 (second edition, 2016-07-15). It supersedes the previous edition published in 2006 as CAN/CSA-ISO 19901-4 (adopted ISO 19901-4:2003). At the time of publication, ISO 19901-4:2016 is available from ISO in English only. CSA will publish the French version when it becomes available from ISO.? For brevity, this Standard will be referred to as "CAN/CSA-ISO 19901-4" throughout.? This Standard specifies that the resistance of foundations be computed either by applying a material factor to the soil strength or a resistance factor to the foundation capacity. The methodologies are two variations of partial factor design and are accepted in different parts of the world. However, experience with design codes in Canada (in which both approaches have been tried and tested) has resulted in adoption of the resistance factor approach in general practice. Designers are encouraged to use the methods proposed in this Standard to harmonize Canadian and international practice. Adoption of material factors requires practitioners to use sound engineering judgment, precedent, and their own experience to obtain a similar design outcome.? Scope This part of ISO 19901 contains provisions for those aspects of geoscience and foundation engineering that are applicable to a broad range of offshore structures, rather than to a particular structure type. Such aspects are:? ? site and soil characterization;? identification of hazards;? design and installation of shallow foundations supported by the seabed;? design and installation of pile foundations;? soil-structure interaction for auxiliary structures, e.g. subsea production systems, risers and flowlines (guidance given in A.10);? design of anchors for the stationkeeping systems of floating structures (guidance given in A.11).? Particular requirements for marine soil investigations are detailed in ISO 19901-8.? Aspects of soil mechanics and foundation engineering that apply equally to offshore and onshore structures are not addressed. The user of this part of ISO 19901 is expected to be familiar with such aspects.? ISO 19901-4 outlines methods developed primarily for the design of shallow foundations with an embedded length (L) to diameter (D) ratio L/D < 1 (Clause 7) and relatively long and flexible pile foundations with L/D> 10 (Clause 8). This part of ISO 19901 does not apply to intermediate foundations with 1 < L/D < 10. Such intermediate foundations, often known as "caisson foundations", comprise either shallow foundations with skirts penetrating deeper into the seabed than the width of the foundation, or shorter, more rigid and larger diameter piles than those traditionally used for founding offshore structures. The design of such foundations can require specific analysis methods; it is important that any extrapolation from the design methods described in this part of ISO 19901 to intermediate foundations be treated with care and assessed by a geotechnical specialist. |
| 국제분류(ICS)코드 | |
| 페이지수 | 215 |
| Edition |
이력정보
| No. | 표준번호 | 표준명 | 발행일 | 상태 |
|---|---|---|---|---|
| 1 | ISO 19901-4:2025상세보기 | Oil and gas industries including lower carbon energy — Specific requirements for offshore structures — Part 4: Geotechnical design considerations | 2025-02-14 | 표준 |
| 2 | CSA ISO 19901-4:17 (R2022)상세보기 | Petroleum and natural gas industries — Specific requirements for offshore structures — Part 4: Geotechnical and foundation design considerations (Adopted ISO 19901-4:2016, second edition, 2016-07-15) | 2017-01-01 | 표준 |
| 3 | ISO 19901-4:2016상세보기 | Petroleum and natural gas industries — Specific requirements for offshore structures — Part 4: Geotechnical and foundation design considerations | 2016-07-15 | 구판 |
| 4 | ISO 19901-4:2003상세보기 | Petroleum and natural gas industries — Specific requirements for offshore structures — Part 4: Geotechnical and foundation design considerations | 2003-08-11 | 구판 |
관련상품
- ISO/DIS 19901-7 - Petroleum and natural gas industries — Specific requirements for offshore structures — Part 7: Stationkeeping systems for floating offshore structures and mobile offshore units
- ISO/DIS 19901-7 - Oil and gas industries including lower carbon energy — Specific requirements for offshore structures — Part 7: Station-keeping systems for floating offshore structures and mobile offshore units
- ISO/DIS 19901-1 - Oil and gas industries including lower carbon energy — Specific requirements for offshore structures — Part 1: Metocean design and operating considerations
- ISO/DIS 19901-2 - Oil and gas industries including lower carbon energy — Specific requirements for offshore structures — Part 2: Seismic design procedures and criteria
- ISO 19901-6:2009 - Petroleum and natural gas industries — Specific requirements for offshore structures — Part 6: Marine operations
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