Sismik Etkiler Altında Gömülü Boru Davranışı: Christchurch Depremi Vaka Analizi

Yıl 2024, Cilt: 6 Sayı: 2, 471 - 487, 30.12.2024

Muhammet Ceylan , Berk Yağcıoğlu , Engin Nacaroğlu , Selçuk Toprak

https://doi.org/10.46464/tdad.1486701

Öz

Gömülü boru hatlarının sismik performansı, afetler sonrasında boruların servisini sürdürmesi açısından kritik bir öneme sahiptir. Şubat 2011’deki 6.2 Mw büyüklüğündeki Christchurch depremi içme suyu dağıtım şebekesinde büyük hasarlar oluşmasına sebep olmuştur. Bu çalışmada asbestli çimento boru (AC) hattı üzerinde gerçekleştirilen nümerik vaka analizi ile yüzey dalgalarının boru hattı üzerinde oluşturduğu etkiler incelenmiştir. Gömülü boru hatları, yüzey dalgası yayılma etkileri altında hem görece rijit hem de esnek davranışlar sergileyebilirken, bu çalışma rijit özellik gösteren asbestli çimento boruların davranışlarına odaklanmaktadır. Sonlu elemanlar yöntemine dayanan Plaxis 2D ile 2011 Christchurch depreminde hasar meydana gelen AC tipi boru üzerinde dinamik vaka analizi uygulanmış ve elde edilen sonuçlar, Ghirmay (2016) tarafından AC boru hatları üzerinde uygulanan yükleme deneyi sonuçları ile karşılaştırılmıştır.

Anahtar Kelimeler

Deprem, Altyapı sistemleri, Nümerik modelleme, Christchurch

Etik Beyan

Araştırma kapsamında yer alan bilgiler; herhangi bir kişiye, kuruma, ekipmana çıkar sağlamayı veya kişisel/kurumsal menfaat kazandırmayı amaçlamamaktadır. Aynı şekilde çalışmada yer alan hususlar objektif değerlendirme sınırları dışına çıkarak herhangi bir şekilde kişi, kurum, kuruluş nezdinde zarara, kastı aşan kötü niyetli yoruma ya da itibar kaybına yol açmamaktadır.

Destekleyen Kurum

TUBITAK, NZGD (New Zealand Geotechnical Database) ve Pamukkale Üniversitesi Bilimsel Araştırma Koordinatörlüğü

Proje Numarası

2019FEBE013

Teşekkür

Bu çalışma 2019FEBE013 proje nosu ile Pamukkale Üniversitesi Bilimsel Araştırma Koordinatörlüğü ve Tübitak Bilim İnsanı Destek Programları Başkanlığı tarafından desteklenmiştir.

Buried Pipe Behavior subjected to Seismic Effects: Christchurch Earthquake Case Study

Öz

The seismic performance of buried pipelines is critical to their continued service after disasters. The 6.2 Mw Christchurch earthquake in February 2011 caused extensive damage to the drinking water distribution network. In this study, the effects of surface waves on the pipeline were investigated through a numerical case study on an asbestos cement (AC) pipeline. While buried pipelines can exhibit both relatively rigid and flexible behavior under surface wave propagation effects, this study focuses on the behavior of asbestos cement pipes, which exhibit rigid characteristics. Using Plaxis 2D based on the finite element method, a dynamic case analysis was performed on the AC type pipe damaged in the 2011 Christchurch earthquake and the results were compared with the results of the axial loading test conducted by Ghirmay (2016) on AC pipelines.

Anahtar Kelimeler

Earthquake, Infrastructure systems, Numerical modeling, Christchurch

Proje Numarası

2019FEBE013

Kaynakça

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