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Title: Usage of Tyre Derived Aggregates as backfill around buried pipelines crossing strike-slip faults; model tests
Authors: Karaman, Mustafa
Demirci, Hasan Emre
Ecemiş, Nurhan
Bhattacharya, Subhamoy
Keywords: Backfill-Tyre Derived Aggregates (TDA)
Buried continuous pipelines
Fault crossings
Seismic mitigation technique
Publisher: Springer
Abstract: Buried pipelines crossing active faults are exposed to excessive soil forces under fault movements due to large relative movement between pipes and the soil surrounding them. As a result, extreme longitudinal strains develop within pipelines under large fault movements and this leads to pipeline failures. Several seismic mitigation techniques were proposed to improve the performance of buried pipelines crossing active faults. In this study, the potential of using Tyre Derived Aggregates (TDA) as a backfill material for mitigating the effects of strike-slip faulting are investigated through physical model tests. First, the details of the physical model test setup and model configuration are presented. Then a comparative study is carried out to study the effect of TDA content in the backfill and trench configurations on TDA mitigation. Model tests revealed that using a sloped trench with 100% TDA content in the backfill can decrease peak axial pipe strains up to 62% and peak bending strains up to 19%. It is observed that enlarging the trench and using an inclined trench improve the performance of the TDA mitigation technique.
Description: Scientific and Technological Research Council of Turkey (TUBITAK) BIDEB 2214-A 2017/2 1059B141700512
ISSN: 1570-761X
Appears in Collections:Civil Engineering / İnşaat Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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