اعتبار،چابکی،پاسخگویی

ارزیابی تحلیلی عمق آب‌شستگی در پل‌ها با پایه‌های صندوقچه‌ای (مطالعه موردی: پل زنجان رود)

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی کارشناسی ارشد مهندسی عمران، واحد ارس، دانشگاه آزاد اسلامی، جلفا، ایران

2 استادیار، گروه مهندسی عمران، واحد ارس، دانشگاه آزاد اسلامی، جلفا، ایران

چکیده
طراحی دقیق پایه‌های پل بر رودخانه مستلزم شناخت رفتار آب‌شستگی و جریان اطراف آن است. انتخاب طول و تعداد دهانه‌ها و عمق حداقل پایه‌ها، اطلاعات هیدرولوژیکی و هیدرولیکی منطقه باید در نظر گرفته شود.در این پژوهش، تأثیر دبی جریان و عمق رودخانه بر عمق آب‌شستگی در پایه پل زنجان‌رود بررسی شده است. برای این منظور، از روش‌های عددی و روابط تجربی مختلف جهت تخمین عمق آب‌شستگی استفاده شد و نتایج با داده‌های واقعی مقایسه گردید. برازش خطی بین عمق واقعی و تخمینی همراه با تحلیل آماری نشان داد که برخی روابط تخمینی دقت بالاتری نسبت به دیگر روش‌ها دارند. همچنین، روش عددی حجم محدود (FV) به‌دلیل توانایی در مدل‌سازی جریان پیچیده و حفظ پایستگی، عملکرد مناسبی در پیش‌بینی عمق آب‌شستگی نشان داد. نتایج این مطالعه می‌تواند در بهبود طراحی پایه‌های پل و کاهش آسیب‌های ناشی از آب‌شستگی مؤثر باشد.

کلیدواژه‌ها

موضوعات

عنوان مقاله English

Scouring Depth Analytical Evaluation in Box Foundation Bridges

نویسندگان English

Esmaeil Abdollahi 1
Bahador Fatehi-Nobarian 2
1 MS.c Student, Department of Civil Engineering, Ara.C., Islamic Azad University, Jolfa, Iran
2 Assistant Professor, Department of Civil Engineering, Ara.C., Islamic Azad University, Jolfa, Iran
چکیده English

Accurate design of bridge piers over rivers requires a clear understanding of scour behavior and the surrounding flow patterns. The selection of span length, number of openings, and minimum pier depth must consider the region’s hydrological and hydraulic characteristics. In this study, the effects of flow discharge and river depth on scour depth around the Zanjanrud Bridge pier were investigated. Numerical methods and various empirical equations were employed to estimate the scour depth, and the results were compared with actual field data. A linear fit between observed and estimated scour depths, along with statistical analysis, showed that some empirical formulas provided higher accuracy than others. Additionally, the finite volume (FV) numerical method demonstrated good performance in predicting scour depth due to its ability to model complex flows while preserving conservation principles. The findings of this research can contribute to improved bridge pier design and help mitigate scour-related damages.

کلیدواژه‌ها English

  • Bridge
  • Foundation
  • Smooth Particle
  • Hydrodynamics
  • Vortex Scour
  • Depth River
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  • تاریخ دریافت 31 تیر 1404
  • تاریخ بازنگری 03 شهریور 1404
  • تاریخ پذیرش 08 شهریور 1404
  • تاریخ اولین انتشار 08 شهریور 1404
  • تاریخ انتشار 01 مهر 1404