Our site uses cookies necessary for its proper functioning. To improve your experience, other cookies may be used: you can choose to disable them. This can be changed at any time via the Cookies link at the bottom of the page.

Technical presentations
Media center
Media center

Welding study and sismeic study by GDF

Quick access

Although moderate in France, the seismic activity can have consequences on industrial infrastructures in some regions; Thus the the French Regulator has updated – by decrets - the legislation for buried gas pipelines regarding earthquakes 

The decrets contains the seismic zoning which divides France in 5 zones of increasing seismicity and introduce the notion of " normal not retroactive risk " as well as the notion of " special retroactive risk “

For gas infrastructures, the new regulations concern the new domestic networks but also imposes to check the statutory conformity of existing ones with regards to their criticality (SEVESO)

So, for any project of installation of pipes in zones of seismicity 3, 4 or 5 for the distribution, the operators will have to present in the administrative file of authorization a technical argument proving that the future pipe is sized to resist the seismic loads fixed in the order

The new legislation imposes the establishment of a specific methodology adapted to the distribution networks, thus including PE


Download the file

 4 Mega bytes
Last update Tuesday 30 June 2015

Members of the Association

BOREALISBOROUGEFormosa Plastics CorporationHanwha TotalEnergiesINEOS O&PIRPCKorea Petrochemical IND. Co., LTD (KPIC)LyondellBasellORLEN UnipetrolPetroChina Dushanzi Petrochemical CompanyPRIME POLYMERSABICSCG Chemicals & Thai PolyethyleneSinopecTASNEE