Mei 9, 2022

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A METHODOLOGY TO DETERMINE CHARPY IMPACT STRENGTH OF NOTHCED SPECIMEN CUT FROM PLASTICS PIPES

Li, Yanjun, Xiang, Aimin, Xu, HaiyunBeijing, Xie, Jianling, Ho, Kinman, Xu, HaiyunBeijing # 2021 Amsterdam It is necessary to evaluate the impact resistance of plastics pipes as they have the potential to be damaged by hitting or colliding during storage, transportation and installation. As a well-established test method, the Charpy impact strength of unnotched test […]

April 18, 2022

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DESIGN OF LARGE DIAMETER BURIED PIPES

Anders Andtbacka, Peter Sejersen # 2021 Amsterdam In the late nineties a study of the behavior of buried thermoplastics pipes was carried out. The project had input and participants from both the plastic pipe industry as well as from external organizations. Six external leading experts in the field of pipeline design, not necessarily plastics pipes […]

Maret 14, 2022

by admin in Industry News, Market Reports, Uncategorized

EVALUATION OF MECHANICAL PROPERTIES AND LONG- TERM DURABILITY OF AGED POLYETHYLENE PIPES FOR GAS DISTRIBUTION

Shuhei Nishida, Shintaro Iwasaki, Hidefumi Yamanaka, Takahiro Kasatani # 2021 Amsterdam Polyethylene pipelines have been used for natural gas service applications for over 40 years in Japan. It is thought that they will continue to be used widely for many years. Therefore, it is important to confirm the conditions of the existing pipelines being used […]

Februari 7, 2022

by admin in Industry News, Market Reports, Uncategorized

DESIGN OF A DISTRIBUTED STRAIN MONITORING SYSTEM FOR HDPE WATER PIPELINES CROSSING AN EARTHQUAKE FAULT

Peter Hubbard, Linqing Luo, Andrew Yeskoo, Kenichi Soga, Krista (Moita) Araica, Gus Cicala, Marshall McLeod # 2021 Amsterdam Seismically active faults pose a risk to buried water pipelines that can be complicated to quantify. Fault type, slip rate, pipeline geometry, and soil conditions all factor into a complex soil-pipeline interaction. For critical pipelines that cross […]

September 28, 2021

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Liner Buckling in Profiled Polyethilene Pipes

A.S. Dhar, , and I.D. Moore, Thermoplastic pipes are often manufactured with profiled walls to maximize the flexural stiffness of the pipe for a given amount of polymer. Thin elements in the profile can buckle under the influence of large earth pressures associated with deep burial or other extreme loading conditions. Earth load tests have been […]

September 20, 2021

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Earth Pressure Measurements On Buried HDPE Pipe

Authors: M.L. TALESNICK*, H.-W. XIA†, and I.D. MOORE† An understanding of the stress distributions that act on buried pipes plays a key role in the development and use of design methods for these structures. The radial stresses that develop on buried flexible pipes have been investigated by a number of researchers through experimental, analytical and numerical methods. […]

Agustus 24, 2021

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LONG-TERM PERFORMANCE AND LIFETIME PREDICTION OF GEOSYNTHETICS

Y.G. Hsuan1 , H. F. Schroeder2 , K. Rowe3 , W. Müller4 , J. Greenwood5 , D. Cazzuffi6 , R.M. Koerner7 To properly understand and assess the long-term behaviour of geosynthetic materials it is necessary to investigate the various types of possible degradation mechanims. This includes both chemical and mechanical behaviour, and sometimes even their […]

Agustus 18, 2021

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Durability of Polyethylene Geopipes for Landfill Applications After Several Years in Service

Durability of polyethylene geopipes for landfill applications after several years in service Helmut Zanzinger, Kurt Engelsing & Sebastian Hausmann SKZ – German Plastics Center, Würzburg, Germany Geosynthetics (GSY) and geopipes (GPI) used for landfill applications should have a guaranteed service life of at least 100 years according to the up-to-date landfill directive in Germany. Bearing […]

Agustus 11, 2021

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Case study – Clogging of a geotextile/geopipe system in a landfill drainage application.

Fleming, I.R. & Barone, F.S. & Dewaele, Paul. (2010). 9th International Conference on Geosynthetics – Geosynthetics: Advanced Solutions for a Challenging World, ICG 2010. 1127-1130. In 2004, a drainage system was installed near the toe of a municipal landfill serving the city of Barrie, Ontario. The drainage system consists of 300 mm diameter perforated HDPE […]

Agustus 4, 2021

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HDPE-Geopipes, Soil-Structure Interaction

Zanzinger LGA, Geotechnical Institute, Nuremberg, Germany Gartung LGA, Geotechnical Institute, Nuremberg, Germany Perforated geopipes are part of the leachate collection system at the base of solid waste landfills. Their structural performance depends on the embedment which is formed by a compacted clay layer, a geomembrane and a sand-bentonite cushion below and coarse gravel above the […]

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A METHODOLOGY TO DETERMINE CHARPY IMPACT STRENGTH OF NOTHCED SPECIMEN CUT FROM PLASTICS PIPES

DESIGN OF LARGE DIAMETER BURIED PIPES

EVALUATION OF MECHANICAL PROPERTIES AND LONG- TERM DURABILITY OF AGED POLYETHYLENE PIPES FOR GAS DISTRIBUTION

DESIGN OF A DISTRIBUTED STRAIN MONITORING SYSTEM FOR HDPE WATER PIPELINES CROSSING AN EARTHQUAKE FAULT

Liner Buckling in Profiled Polyethilene Pipes

Earth Pressure Measurements On Buried HDPE Pipe

LONG-TERM PERFORMANCE AND LIFETIME PREDICTION OF GEOSYNTHETICS

Durability of Polyethylene Geopipes for Landfill Applications After Several Years in Service

Case study – Clogging of a geotextile/geopipe system in a landfill drainage application.

HDPE-Geopipes, Soil-Structure Interaction

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