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صورت جلسه زمستان 1401

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داوران فعال در سال 1401

داوران فعال 1400

داوران همکار در 1402

طراحی بهینه‌ ابعاد آبشکن با استفاده از الگوریتم چند هدفه جستجوی هارمونی، مطالعه موردی: رودخانه زنجان‌رود

نوع مقاله : پژوهشی

نویسندگان

1 استادیار گروه مهندسی آب، دانشگاه لرستان

2 دانشیار گروه مهندسی آب، دانشگاه لرستان، خرم آباد، ایران

3 انتهای خیابان جلال آل احمد کوی اساتید ۴ انتهای کوچه سمت چپ

چکیده

یکی از روش‌های معمول کنترل فرسایش کناری و ساماندهی رودخانه‌ها استفاده از آبشکن است. در این خصوص در نظر گرفتن همزمان چندین هدف مختلف و گاها متضاد در کنار یکدیگر در مطالعات مهندسی رودخانه می‌تواند از اهمیت زیادی برخوردار باشد. به ‌همین منظور در این پژوهش طراحی بهینه‌ی ابعاد با اهداف کمینه کردن هزینه و بیشینه کردن دبی بار بستر مدنظر قرار گرفت. در مدل مورد مطالعه از تلفیق مدل مورفولوژیکی، طراحی و الگوریتم بهینه‌سازی چندهدفه جستجوی هارمونی استفاده گردید. همچنین برای بررسی پایداری مقطع از روش تئوری‌های حدی استفاده شد. پس از آنالیز حساسیت پارامترهای دبی، شیب و عرض اولیه رودخانه، صحت‌سنجی مدل با استفاده از داده‌های زنجان‌رود و با درنظر گرفتن معادله بار بستر فان-راین و معادله آبشستگی گیل انجام گرفت. سپس براساس جبهه پارتو سناریوهای مختلف استخراج گردید. نتایج بدست آمده نشان داد که مدل ارائه شده در مقایسه با طراحی انجام شده توسط سایر محققین، جواب‌های بهینه‌تری را ارائه داده است. براساس کمترین فاصله اقلیدسی نسبت به نقطه ایده‌آل، به‌ترتیب 90/63 درصد هزینه کمتر و 48/25 درصد دبی انتقال بار بستر بیشتری را نسبت به طراحی انجام شده توسط حسینی و همکاران (1382) و به‌ترتیب 3/3 درصد هزینه کمتر و 62/16 درصد دبی انتقال بار بستر بیشتری را نسبت به مدل استادی و همکاران (1393) ارائه می‌دهد که نشان‌دهنده کارایی مطلوب و دقت بهتر مدل پیشنهادی است.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Optimum Design of spur dikes dimension using multi-objective of harmony search algorithm, Case study: Zanjanrood River

نویسندگان [English]

  • babak shahinejad 1
  • Hojjat Allah Yonesi 2
  • maryam mirbeyksabzevari 3

1 Assistant Professor Department of Water Engineering

2 Associate Professor, Water Engineering Department, Lorestan University, Khorramabad, Iran

3 PhD student of Water Structures Engineering, Lorestan University, Khorramabad, Iran

چکیده [English]

One of the common methods of controlling the side erosion and rivers training is the use of spur dikes. It is important to consider several different and conflicting objectives in river engineering studies simultaneously. For this purpose, the optimum design of the dimensions of constructed spur dikes in Zanjanrood was considered with the aim of minimizing the cost and maximizing the sediment discharge. In the model, a combination of morphological model, design and optimization model of multi-objective harmony search algorithm were used and to evaluate the cross-section stability were used hypothetical theories. Calibration and validation of the model were performed by Zanjanrood data with Van Rijn sediment equation and Gill scouring equation. Sensitivity analysis of the model were performed for the parameters of discharge, slope and initial width of the river.

By comparing different scenarios obtained from the Pareto front, better answers were provided than the plan implemented in Zanjanrood and the studies of other researchers. Finally, one of the points of the Pareto front must be selected for construction and execution. Choosing the right number depends on the designer's opinion and the existing priorities. in one of scenario that chosen as the optimal design, it has the lowest Euclidean distance compared to other scenarios with the ideal point. This scenario offers 244.58% lower cost and 25.48% more sediment discharge than Zanjanrood plan.

کلیدواژه‌ها [English]

  • River training
  • Multi-objective optimization
  • Pareto front
  • Euclidean distance. Zanjanrood Basin
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هیدروژئومورفولوژی
دوره 10، شماره 34 - شماره پیاپی 34
اردیبهشت 1402
صفحه 165-141
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سابقه مقاله
  • تاریخ دریافت: 08 دی 1401
  • تاریخ بازنگری: 01 بهمن 1401
  • تاریخ پذیرش: 16 بهمن 1401
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