مهندسی سازه و ساخت

مهندسی سازه و ساخت

پروتکل هشدار اولیه درخصوص خرابی های سد خاکی شیاده

نوع مقاله : علمی - پژوهشی

نویسندگان
1 دانشجوی دکتری، گروه مهندسی عمران، دانشگاه رازی، کرمانشاه، ایران
2 دانشیار، دانشکده مهندسی عمران، دانشگاه رازی، کرمانشاه، ایران
3 دانشیار، گروه علوم و مهندسی آب، دانشگاه رازی، کرمانشاه، ایران
چکیده
پروتکل‌های هشدار اولیه قوی، برای شناسایی به‌موقع و کاهش ریسک‌های احتمالی زیرساخت‌های حیاتی، امری ضروری است. این پژوهش یک چارچوب جامع برای پایش و ارزیابی عملکرد سد خاکی شیاده را پیشنهاد می‌کند. پس از نخستین آبگیری سد در سال ۱۹۹۹ و خرابی تمام سیستم ابزار دقیق منصوبه در سال ۲۰۱۳،پیش بینی نشست با استفاده از شبکه عصبی تابع پایه شعاعی (RBF) بر مبنای ۵۳۰ دیتای ثبت‌شده انجام شد. پردازش تصاویر ماهواره‌ای طی بازه‌ی زمانی ۲۰۱۴ تا ۲۰۲۴ با نرم‌افزار SNAP نشست در امتداد تاج سد معادل ۸۷ سانتی‌متر را نشان داد که بر نقش گسل ‌ثانویه در مخزن و تکیه گاه چپ  سد تأکید دارد. علاوه بر این، تحلیل عددی سه‌بعدی سد خاکی، در حالت های‌ استاتیکی و دینامیکی با استفاده از نرم‌افزار PLAXIS، نشست امتداد تاج معادل 78.09 سانتی‌متر را در تمام فصول آبگیری مخزن برآورد شد که تطابق قابل توجهی با نتایج حاصل از تصاویر ماهواره‌ای دارد. نقشه برداری زمینی از نقاط میکروژئودزی نشان داد که شیب خارجی سد متورم شده و نشست در  امتداد تاج سد اتفاق افتاده است. نتایج بررسی وضعیت سد موجود را در سطح هشدار 2 (وضعیت احتیاط) نشان می دهد. با تلفیق پایش ماهواره‌ای، مدل‌سازی عددی، الگوریتم‌های تابع پایه شعاعی و انجام نقشه برداری از نقاط میکروژئودزی و امتداد تاج سد، این پژوهش یک پروتکل نوآورانه و قابل اعتماد برای پایش سد خاکی شیاده را ارائه می‌دهد که می‌تواند نقش مهمی در ارتقای ایمنی و کاهش خطر خرابی سدها ایفا کند. این روش می تواند برای پایش  تمام سدهای خاکی و بتونی در حال بهره برداری  سراسر کشور نیز بکارگیری شود.
کلیدواژه‌ها

موضوعات


عنوان مقاله English

Early Warning Protocol for Shiadeh Earth Dam Failures

نویسندگان English

Seyed Razi Anisheh 1
Mohammad Sharifipour 2
Arash Azari 3
1 PhD student, Civil Engineering Department, Razi University, Kermanshah, Iran
2 Associate Professor, Department of Civil Engineering, Razi University, Kermanshah, Iran
3 Associate Professor, Department of Water Science and Engineering, Razi University, Kermanshah, Iran
چکیده English

Robust early warning protocols are essential for the timely detection and mitigation of potential risks to critical infrastructures. This study proposes a comprehensive framework for monitoring and evaluating the performance of the Shiadeh earth dam. Following the initial reservoir impoundment in 1999 and the failure of the entire installed instrumentation system in 2013, settlement prediction was carried out using a radial basis function (RBF) neural network based on 530 recorded data points. Satellite image processing over the period 2014 to 2024 using SNAP software indicated a settlement of 87 cm along the dam crest, emphasizing the role of the secondary fault in the reservoir and the left abutment of the dam. In addition, a three-dimensional numerical analysis of the earth dam under static and dynamic conditions using PLAXIS software estimated a crest settlement of 78.09 cm during all reservoir impoundment seasons, which shows a remarkable agreement with the satellite-derived results. Ground surveying of micro-geodetic points revealed swelling of the downstream slope and settlement along the dam crest. The assessment results indicate that the dam is currently at alert level 2 (caution status). By integrating satellite monitoring, numerical modeling, radial basis function algorithms, and ground surveying of micro-geodetic points and the crest, this study provides an innovative and reliable protocol for monitoring the Shiadeh earth dam. This approach can play a significant role in enhancing safety and reducing the risk of dam failure. Moreover, it can be applied to monitor all operational earth and concrete dams across the country.

کلیدواژه‌ها English

Early Warning
Monitoring instruments
Radial Basis Function
Ground survey
Controlling settlement
Dynamic state
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  • تاریخ دریافت 28 اردیبهشت 1404
  • تاریخ بازنگری 27 تیر 1404
  • تاریخ پذیرش 29 مرداد 1404