Journals / Karaelmas Fen ve Mühendislik Dergisi / 2026 / Cilt: 16 Sayı: 1

Assessment of the Impact of a Planned Portal Crane on the Existing Stone Retaining Wall in Alaplı Organized Industrial Zone

Alaplı Organize Sanayi Bölgesinde Kurulacak Olan Portal Vincin Mevcut Taş Duvara Etkilerinin İncelenmesi

Emrah Dağlı(ZONGULDAK BÜLENT ECEVİT ÜNİVERSİTESİ, MÜHENDİSLİK FAKÜLTESİ, İNŞAAT MÜHENDİSLİĞİ BÖLÜMÜ)0000-0002-5744-8151
Pages
90–102
Publication Date
2026-04-21
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Because differential settlements at the rail ends may lead to rail misalignment, reinforcement or improvement measures should be implemented.

📌 3 Key Takeaways

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Objective & Hypothesis:In this study, the effect of a planned 30-ton portal crane on the existing stone retaining wall was evaluated.
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Key Findings & Data:A surcharge load of 5 t/m², representing the crane’s self-weight and the maximum lifting load, was also applied to the model.
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Conclusion & Impact:Because differential settlements at the rail ends may lead to rail misalignment, reinforcement or improvement measures should be implemented.
🔬Design:Modeling & Simulation
📍Scope:2024 Verileri
⚙️Variables:Emniyet faktörü · oturma · portal vinç

Abstract

In this study, the effect of a planned 30-ton portal crane on the existing stone retaining wall was evaluated. Using the borehole data and laboratory test results obtained from field samples, the stone wall was modeled in the ISTCAD software. A surcharge load of 5 t/m², representing the crane’s self-weight and the maximum lifting load, was also applied to the model. The wall heights were considered as 3, 4, 5, and 6 m, while different foundation elevations (0; 0.25; 0.5; 0.75; and 1 m) were also analyzed. In addition, the wall was modeled using the finite element software PLAXIS 2D (2024), and the corresponding settlement values were determined. When the factors of safety against sliding were examined, it was observed that the wall remained safe under both static and dynamic conditions. However, the factors of safety against overturning did not satisfy the code requirements in any scenario. The soil stresses were generally lower than the design bearing capacity. Nevertheless, for the cases with a wall height of 6 m and foundation elevations of 0.75 m and 1 m, the design bearing capacity was exceeded, indicating insufficient bearing performance. Since differential settlements are critical in systems such as crane rails, absolute settlement also becomes an important design parameter. The allowable settlement is generally taken as 10–25 mm. The absolute settlements observed along the rail ranged between 2.62 cm and 3 cm for varying wall heights (3–6 m). While the settlements at the rail center varied between 5 cm and 6 cm, the settlements beneath the wall remained within normal limits (0.53–1.69 cm). Because differential settlements at the rail ends may lead to rail misalignment, reinforcement or improvement measures should be implemented.

Özet

Bu çalışmada kurulması planlanan 30 ton ağırlığında bir portal vincin mevcut taş duvara etkisi değerlendirilmiştir. Sondaj verileri ve araziden alınan numunelere yapılan laboratuvar deney sonuçları kullanılarak İSTCAD yazılımında taş duvar modellenmiştir. Portal vinçten kaynaklı 5 ton/m2 sürşarj yükü (vincin ölü yükü ve maksimum kapasitede kaldıracağı yük dikkate alınarak) de modele etki ettirilmiştir. Duvar yükseklikleri 3, 4, 5 ve 6 m olarak girilirken, farklı temel yükseklikleri (0; 0,25; 0,5; 0,75 ve 1 m) de denenmiştir. Aynı zamanda modelleme sonlu elemanlar programı Plaxis 2D (2024) programı ile de yapılmış ve oturma değerleri tespit edilmiştir. Kaymaya karşı emniyet faktörleri incelendiğinde duvarın statik ve dinamik durumda güvenli olduğu gözlenmiştir. Fakat, devrilmeye karşı emniyet faktörleri yönetmeliğin sınırlarını hiçbir senaryoda karşılayamamıştır. Zemin gerilmeleri çoğu durumda tasarım dayanımından daha düşüktür. Duvar yüksekliğinin 6 m olup temel yüksekliğinin 0,75 ve 1 m olduğu durumlarda ise tasarım dayanımını aşarak taşıma gücü açısından yetersiz olmuştur. Vinç gibi farklı oturma hassasiyetinin önemli olduğu durumlarda mutlak oturma da önemlidir. İzin verilebilir oturma 10-25 mm dir. Ray başından sonuna kadar farklı duvar yüksekliği (3, 4, 5 ve 6 m) durumlarında mutlak oturmalar 2,62−3 cm aralığında değişmektedir. Rayın merkezinde oturmalar 5-6 cm arasında değişmekte iken duvar altındaki oturmalar (0,53-1,69 cm) ise normal düzeydedir. Ray başı ve sonunda oluşan oturma farkları ray hizasızlığına yol açabileceği için güçlendirme çalışmaları yapılmalıdır.

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Cite This Article

Dağlı, E. (2026). Assessment of the Impact of a Planned Portal Crane on the Existing Stone Retaining Wall in Alaplı Organized Industrial Zone. Karaelmas Fen ve Mühendislik Dergisi, Cilt: 16 Sayı: 1, 90–102. https://doi.org/10.7212/karaelmasfen.1794791

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