Design of tanks’ foundation and onshore pipeline against earthquakerelated geohazards in a coastal area in Northern Greece
The design of coastal oil and gasol ine tanks along with interconnected onshore and offshore pipeli ne in an area that is char acterized by very loose to loose gr anular and very soft to soft clayey soils, high water table and moderate or high seismicity will be much more demanding and challenging, since various issues are directly or indirectly associated to (a) settlement s over time and (b) a pot ential earthquake. The cur rent paper aims to illustrate the following main topics: (a) estimation-calculat ion of settlements and t heir consolidation time and (b) earthquake-related geohazard and soilstruct ure interaction that have to be coped with for the proper design of tanks’ foundation as wel l as pipelines in a coastal area at Nort hern Greece. As a consequence, the main earthquake-related geohazards that are present in the study ar ea are briefly presented, such as seismic wave loading, active-fault rupture, and soil liq uefaction phenomena. Emphasis is also given to the numer ical simulation of the static and dynamic interaction between the pipeline and the surrounding soil as well as the foundation type and the soil underneath. Since foundation soil will lose its shear strength during an earthquake, specific mitigation measures are proposed. These measures may also be adopted in the case of excessive pipeline distress.
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Pipeline Technology Journal 3/2020
Issue 3/2020 of ptj is the third special edition for the ptc - Pipeline Technology Conference
For the third time the ptj will feature all papers from the Pipeline Technology Conference.
On its 92 pages this issue will discuss several topics. From maximizing the accuracy of pipeline inspection to the safe repair of subsea flanges on flexible flowlines. This issue contains 10 papers from different companies.