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.


Large Diameter PE Pipes for Combined Sewer Overflow Applications [PE]

 

Plastic Pipes Conference Association # 2012 Barcelona

Groen Gerry

Designers are increasingly choosing to attenuate the peak discharge from combined (storm plus sanitary) sewers, and from storm sewers alone, by providing local storage. This enables waste water treatment to occur once a storm event has passed and there is capacity available in the waste water treatment facility. In urban areas large diameter ‘hydraulically oversized’ sewers are sometimes used to provide this local attenuation storage. To reduce the footprint of the installation, designers select large pipe sizes with significant burial depths and minimal spacing between parallel pipe runs. Large Diameter Profile Wall PE Pipes are being increasingly selected for this application. This paper will examine the use of 2D and 3D FEA modeling tools to assess the suitability of these products in this application by a case study review. AASHTO’s NCHRP Report 631 notes that profile wall PE pipes often experience local wall buckling. It recommends that the assessment for burial should be based on a pipe cross sectional area where the locally buckled portion of the pipe wall is ‘subtracted’ from the cross sectional area. This paper examines the suitability of that recommendation.

Please note that the whole article content is available on PPCA website only :

Related papers

2016 Berlin : PE4710 mitered elbow design justification by finite element analysis

Author(s) : Gerry Groen, Ernest Lever, Oren Lever

A design justification for reinforcement of fabricated Polyethylene elbows is presented. The acceptance criteria is that the average stress in the mitered wall of fabricated elbow shall not exceed the hoop stress in the matching pipe. ASTM and ISO standards have established requirements for the geometry, production...

2006 Washington DC : Large Diameter Profile Wall Pressure Pipe

Author(s) : Vestman, Andtbacka, Groen

The ability of a solid wall PE pipe (or solid wall pipe of any other material) to support internal pressure is directly related to the pipe’s ‘diameter to wall thickness’ ratio, the DR (dimension ratio) of the pipe. Pipe of a given material type with the same DR, regardless of size, have the same internal pressure...

Members of the Association

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