SY/T 4084-1995 Technical specification for beach environmental conditions and loads
Some standard content:
Standard of the People's Republic of China for petroleum and natural gas industry Technical specification of environmental conditions and load in beach-shallow sea SY/ T 4084--95 Edited by: Survey and Design Institute of Liaohe Petroleum Exploration Bureau Approved by: Petroleum Industry Press of China National Petroleum Corporation Beijing 1995 Weihai Hydrology General provisions Waves, beach-shallow sea meteorology General provisions Air temperature, water temperature, mud temperature, precipitation and other general provisions
Design for sea ice beaches
General provisions
Loads and their combinations
General provisions
Fixed loads
Service loads
Environmental loads
Construction loads
Load combinations
Environmental loads
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General provisions
Wind loads
Wave loads
Current loads
Ice loads
Earth pressure
Appendix A
Appendix B
Appendix C
Appendix D
Appendix E
Appendix F
Appendix G
Appendix H
Appendix K||t t||Appendix L
Appendix M
Nomogram for conversion of wave heights of various cumulative frequenciesRelated coefficients for calculation of water flow force
Calculation of white vibration period of structure
Calculation of displacement of particle
Earthquake active earth pressure coefficient Kn
Earthquake passive earth pressure coefficient Kpn
Angle between earthquake passive earth pressure rupture surface and horizontal planeTable of common material weights
Filling weight! Calculation value of internal friction angle Reference table of weight per square meter of steel bow bridge
Calculation of maximum wave bottom velocity of far-breaking waves Inquiry for this specification
Additional explanation
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Technical model for beach and sea environment and loads
Article explanation.·29)
Document of China National Petroleum Corporation
(95). CNPC Technical Supervision No. 731
Notice on the approval and release of 26 oil and gas industry standards including "Standard for Investigation Methods of Corrosion and Protection of Steel Pipelines and Storage Tanks"
To all relevant units:
"Standard for Investigation Methods of Corrosion and Protection of Steel Pipelines and Storage Tanks" and other 26 Shishan natural gas industry standards (draft) have been reviewed and approved and are now approved as oil and gas industry standards for release. The numbers and names of the standards are as follows: 1
SYT 008795
SYT 0545—1995
SY T 4013-95
SYT 4041-95
SYT 4084-95
SY T 4085--95
Standard for investigation method of corrosion and protection of steel pipelines and storage tanks
Determination of thermal characteristic parameters of wax precipitation in crude oil, differential scanning calorimetry
Technical standard for polyethylene anticorrosion layer of buried steel pipelines (replacing SYJ4013—87)
Specification for installation and acceptance of special wet steam generators for oil fields (replacing SYJ4041-89)
Technical specification for environmental conditions and loads in Weihai
Technical specification for oil and gas gathering and transportation in Tanhai oil fields
SY/T 408695
SY/T 408795
SY /T 4088--95
SY/T 4089-95
SY /T 4090-95
SY/T 4091 -95
SY#T 4092-
SYT 409395
SY/T 409495 -
SY/T 4095
SY T 409695
SYT 4097-95
SY T 409895
SY/T 409995
SY / T 4100-- 95
SY/T 410195
SYT 410295
SY/T 4103 :-1995
SY 4104-95
SY7T 0088-95
Technical specification for design and construction of pipeline network for beach and sea structures
Technical specification for ventilation and air conditioning of beach and sea petroleum projects
Technical specification for water supply and drainage of Xionghai petroleum projects
Technical specification for electrical equipment of beach and sea petroleum projects
Technical specification for power generation facilities of beach and sea petroleum projects
Technical specification for corrosion protection of Weihai petroleum projects
Technical specification for thermal insulation of beach and sea petroleum projectsWww.bzxZ.net
Technical specification for selection and installation of lifting equipment on beach and sea petroleum facilities,
Technical specification for design and construction of shallow-water fixed steel platforms
Technical specification for design and construction of shallow-water mobile steel platforms
Technical specification for wellhead protection device in oilfield Technical specification for design and construction of artificial island structure with sloped sandstone in coastal sea
Technical specification for design and construction of artificial island structure with steel formwork and concrete on coastal seawall
Technical specification for design and construction of coastal seawall, technical specification for coastal engineering survey
Technical specification for geotechnical engineering investigation in Weihai
Specification for inspection and installation of valves
Welding and acceptance of steel pipelines
Quality inspection and assessment standard for petroleum construction projects Pipeline crossing and spanning projects
Technical standard for cathodic protection of outer wall of bottom of steel storage tank
The above standards shall be implemented from June 1, 1996. China National Petroleum Corporation
December 18, 1995
1 General provisions
1 Core 1 This specification is formulated to optimize the calculation of coastal environmental conditions and environmental loads, and to achieve safety, reliability, advanced technology, economical and practical, and environmental protection.
1.0.2 This specification is applicable to the selection of environmental condition parameters and load calculation in the design, construction, installation and use of beach oil and gas exploration and development projects. Other coastal projects can also refer to this specification.
1.0.3 The design, construction, installation and use of beach tourism projects should comprehensively consider the influence of environmental conditions such as waves, tides, currents, ice, storm surges, earthquakes, air temperature, air pressure, wind, temperature, precipitation, fog, etc.
1.04: The environmental data used should be based on the measured data provided by the national competent authorities. If other observation data or statistical results are used, they should be verified in accordance with relevant regulations or recognized theories. These materials are authentic, reliable, continuous and representative. The design environmental data should be provided by the owner, and its accuracy should be specified by the owner. It can also be determined after the designer discusses with the hydrological and meteorological personnel and is approved by the owner. 1.0.5 Standards used
GB9-8 Load Code for Industrial and Civil Building Structures SY7T4802-92 Recommended Practice for Planning, Design and Construction of Fixed Offshore Platforms
Ministry of Communications Port Engineering Technical Specifications (17th Edition) China Classification Society Offshore Fixed Platform Classification and Construction Specifications (1992 Edition) 1.6 Selection of Beach Environmental Condition Parameters Load calculation, in addition to this specification, shall also comply with the provisions of the relevant national standards (specifications) in force. 2 Terminology
2.0.1 Beach-shallow sea
, the general term for supratidal zone, intertidal zone and shallow sea. All belong to the coastal zone. 2.0.2 Beach-shallow sea hydrology Beach-shallow sea hydrology refers to the distribution and changes of the temperature, salinity, water color, transparency and other physical properties of seawater in the beach-shallow sea area, as well as the occurrence and development of seawater movements such as tides, currents and waves.
2.0.3 Beach-shallow sea meteorology Beach-shallow sea meteorology refers to the weather phenomena in the beach-shallow sea area and the interaction between the beach-shallow sea and the atmosphere, mainly various weather processes occurring on the beach: heat exchange with the weather, water vapor transport and momentum transfer, and the impact of the beach-shallow sea on weather and climate change. Conventional meteorological elements include air temperature, air pressure, temperature, wind, precipitation and fog. 2.0.4 Beach-shallow sea structure refers to the entities of buildings and structures built in the beach area with steel or reinforced concrete, sand and gravel and other materials and their related components. Such as drilling platforms, oil production platforms, submarine pipelines, seawalls, artificial islands, mooring devices, docks and wellhead protection devices.
2.0.5 Beach-shallow sea environmental data. Beach-shallow sea environmental data includes real data, reliable observation data or statistical results such as hydrological conditions (water depth, tide, flow speed, flow direction, wave height, period, wave direction, water temperature, etc.), meteorological conditions (wind speed, wind direction, temperature, snow cover, ice, etc.), sea ice, earthquakes, marine organisms, engineering geology (geology, landforms, seabed soil), etc. 2.0.6 Beach-shallow sea natural environmental conditions
During the construction or use of beach-shallow sea structures, they may encounter wind, waves, tides, currents, ice, earthquakes, tsunamis, storm surges, snow, fog, frost, temperature, humidity, engineering geology, swimming corrosion, marine biological attachment and water depth conditions. 2.0.7 Beach-shallow sea environmental parameters
Parameters related to various environmental phenomena, such as wave parameters including wave height, period, wave direction and wave spectrum.
2.0.8 Beach-shalow sea design environmental conditions
General term for beach-shalow sea working environmental conditions and beach-shalow sea extreme environmental conditions. 2.0.9 Beach-Shallow Sea Operating Environmental Conditions
A set of upper limits of environmental parameters determined to ensure the main functions and various operations of beach-shallow sea structures and to achieve safe operation.
2.0.1 Extreme Beach-Shallow Sea Survival Environmental Conditions
A set of upper limits of environmental parameters that have the most adverse effects on the structures during their working life and represent the worst environmental conditions. Beach-Shallow Sea Installing Environmental Conditions
A set of upper limits of environmental parameters that enable safe operation of beach-shallow sea structures during installation operations in beach-shallow sea areas.
2.0.12 Beach-shallow sea environmental design criteria
In determining the design environmental conditions of beach structures, the principles and standards for the recurrence period of environmental parameters and the combination of environmental loads are adopted. 2.0.13 Beach-shallow sea environmental loads Beach-shallow sea environmental loads are the loads imposed on beach structures by the natural environment, mainly including wind loads, wave loads, current loads, ice loads and earthquake loads. 2.0.14 Beach-shallow sea operating environmental loads
Loads corresponding to beach operating environmental conditions. 2.o.1s Beach extreme environmental loads Beach-shallow sea survival environmental loads
Loads corresponding to beach extreme environmental conditions. 2.0.16 Funclion load
All kinds of loads other than environmental load and deformation load that beach structures are subjected to during the entire service period after construction and installation. 2.0.17 Construction load Construction load refers to the load that structures or components are subjected to during the process of manufacturing, loading, transportation and installation, such as lifting load, loading load, transportation load and pipe laying load.
2.0.18 Sea wave
Also known as wave, a general term for seawater fluctuations, one of the forms of seawater movement, with obvious periodicity.
Wirnd wave
A type of sea wave formed under the direct action of wind. 2.0.20 Offshore wave
Waves that propagate from the open sea to the water in the near distance:
Near broken wave
Waves that act on a vertical wall structure and break on the wall or near it. 2.0.22 Far broken wave
Waves that act on a vertical wall structure and break half a meter in front of the wall or slightly further away.
2.0.23 Standing wave
Waves that do not propagate outwards, formed by the interference of incident waves and reflected waves. Its wave height is - times greater than the incident wave height. :
2.0.24 Incident wave
Waves that propagate to shallow water: Waves near the shore or structures. 2.0.25
Reflecting wave
Waves formed by the reflection of a wave propagating in front of a vertical wall or a steep cliff. 20.26Bypassing wave
Waves formed by the wave bypassing obstacles such as islands, sea or structures during the propagation process.
2.0.27 Maximum wave height According to statistical laws, the maximum possible wave height value under extreme conditions is expressed as a multiple of the effective wave height (average wave height) or the maximum wave height value actually occurring in a certain observation.
2.0.28．Limit wave height When a wave breaks in shallow water, the breaking wave height represents the maximum wave height that may occur in the water depth: it is called the limit wave height.
2.0.29Average wave heightThe wave height obtained by adding up the wave heights of different sizes observed continuously and dividing by the total number of waves is called the average wave height. 2..3o Significant wave Arrange all the wave heights measured continuously by size, and the average of the wave heights of one third of the total number is the significant wave height.
2.0.31 Significant period Arrange all the wave heights measured continuously by size, and record the period corresponding to each wave height value, and take the average of the period of one third of the total number of large waves as the significant period. 2.0.32 Swell
Also known as "surge" or "long wave", it is the remaining wave after the wave or wind that has spread far away from the source has subsided, weakened, and changed direction. 2.0.33 Broken wave
The wave in shallow waters is broken by the crest or the topography due to the influence of water depth and terrain changes.
2.0.34 Tide
The periodic rise and fall of sea water under the bow force of celestial bodies such as the moon and the sun. There are semi-diurnal tide, diurnal tide, mixed tide, etc. 2.0.35 Tidal range tide range
The difference between the adjacent high tide and low tide levels during the tidal rise and fall. 2.0.36 Diurnal tide
On most days of the month, there is only one high tide and one low tide every day. 2.0.37 Semi-diurnal tide semidiurnal tide Tidal phenomenon with two high tides and two low tides every day. 2.0.38 Mixed tide mixed tide
Tidal phenomenon of transition type between diurnal tide and semi-diurnal tide: divided into irregular diurnal tide and irregular semi-diurnal tide.
2.0.39 Storm surge storm surge
Sea surface abnormality caused by strong wind and large changes in air pressure, resulting in significant increase or decrease in water within a certain range of coastal areas. 2.0.40 Design water depth designwalerdepth The operating water depth or water depth range of the sea-spreading structure provided as the design basis. 2.0.4l Broken water depth refers to the water where the waves break.
2.0.42 Theoretical depth datum plane tidal plan of theoretical reference is also called "depth zero point", the starting surface of the chart depth. It is usually also the starting surface of the tide level. The actual water depth at a certain place at a certain time is the chart depth plus the tide height at that time. The position of the theoretical depth datum plane is generally calculated based on the mean sea level, that is, it indicates how many meters below the mean sea level.
2.0.43 Mean sea level
mean sea level
The average position of the sea level at a certain place in the beach during a certain period of time. The multi-year average sea level can be used as the starting surface of land elevation.
2.0.44 -Splash zone
The area where beach structures alternate between dry and wet under the action of tides and waves 2.0.45 Ocean curiet
The large-scale flow of seawater along a relatively fixed route. According to the cause, it can be divided into tidal currents, wind currents, density currents, geostrophic currents, jaw oblique currents and compensation currents. 2.0.46 Tide current
The periodic flow of seawater in the horizontal direction caused by the tidal force of celestial bodies. It occurs simultaneously with the rise and fall of tides.
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