نشریه علمی-پژوهشی مکانیک سنگ

نشریه علمی-پژوهشی مکانیک سنگ

پیش‌بینی پایداری پایه با استفاده از الگوریتم برنامه‌نویسی بیان ژن در معادن کارگاه و پایه

نوع مقاله : مقاله پژوهشی

نویسندگان
دانشکده مهندسی معدن، دانشگاه صنعتی اصفهان، اصفهان، ایران.
چکیده
روش‌­های استخراج جزئی یکی از انواع روش­‌های معدنکاری زیرزمینی است که در آن به منظور تأمین ایمنی محیط کاری از پایه استفاده می­‌شود. ارزیابی پایداری پایه­‌ها یکی از مسائل بسیار مهم در طراحی معادن زیرزمینی است به طوریکه ناپایداری پایه­‌ها منجر به خسارات جانی و مالی در عملیات معدنکاری خواهد شد. بنابراین پیش‌­بینی پایداری پایه از اهمیت بسیاری برخوردار است. تحلیل پایداری در پیشینه تحقیق شامل روش‌­های تحلیلی، عددی و تجربی است که دارای محدودیت بوده و از دقت بالایی برخوردار نیستند. استفاده از الگوریتم ژنتیک ابزاری مفید برای ارزیابی پایداری پایه‌­ها است. در این مطالعه همبستگی میان پایداری پایه با پارامترهای هندسی (عرض و ارتفاع) و تنش پایه توسط روش برنامه‌­نویسی بیان ژن (GEP) مورد بررسی قرار گرفته است. مدل پیشنهادی در یک پایگاه داده برگرفته از مطالعات پیشین اجرا شده است. عملکرد مدل توسط 4 شاخص آماری دقت، حساسیت، عدم اشتراک و ضریب همبستگی متئو مورد ارزیابی قرار گرفت که مقدار آن­ها به ترتیب برابر با 0.82، 0.79، 0.86 و 0.65 به دست آمده است. نتایج نشان داد که مدل توسعه داده شده از دقت مطلوبی برخوردار است و قادر به پیش‌­بینی پایداری پایه می‌­باشد.
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