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دوره 4، شماره 1 - ( 11-1400 )
جلد 4 شماره 1 صفحات 20-1 |
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Rahimi Shahid M. Evaluation of multivariable regression in predicting rock slake durability index. sjfst 2022; 4 (1) :1-20
URL: http://sjfst.srpub.org/article-6-139-fa.html
URL: http://sjfst.srpub.org/article-6-139-fa.html
رحیمی شهید مجتبی. ارزیابی رگرسیون چند متغیره در پیش‌بینی شاخص دوام وارفتگی سنگ. تحقیقات بنیادی علوم و تکنولوژی. 1400; 4 (1) :1-20
گروه زمین شناسی، دانشکده علوم، دانشگاه فردوسی مشهد، مشهد، ایران.
چکیده: (365 مشاهده)
دوام سنگ در برابر فرسایش، هوازدگی و انحلال در برابر جریان آب یکی از پارامترهای مهم در پروژههای مهندسی عمران است. بررسی کیفیت شاخص دوام وارفتگی سنگ در برابر جریان آب در انواع موجشکنهای سنگی، رگاب در سدها و از جمله مصالح ساختمانی (طیف وسیعی از سنگهای تزئینی) کاملاً ضروری است. آزمایش دوام وارفتگی یک روش رایج برای ارزیابی دوام سنگها است. دوام سنگ ارتباط زیادی با بافت، هوازدگی و خواص فیزیکی و مکانیکی سنگ دارد. در این تحقیق با انجام آزمایش‌های دوام وارفتگی بر روی نمونه‌های متعلق به سازند تلهزنگ، شاخص دوام وارفتگی (SDI) سنگ آهک متعلق به این سازند بررسی شد. همچنین تأثیر تعداد چرخهها و رابطه بین شاخص دوام وارفتگی و خواص فیزیکی و مکانیکی بررسی شده است. روابط رگرسیون تکمتغیره و چند متغیره برای پیش‌بینی شاخص دوام وارفتگی استفاده شد. نتایج نشان می‌دهد که رگرسیون خطی چند متغیره با استفاده از ترکیبی از ویژگی‌های ژئومکانیکی، همبستگی بالاتری را بین این ویژگی‌ها و شاخص دوام وارفتگی (SDI) سنگهای آهکی مورد مطالعه ارائه می‌دهد. در مدل‌های رگرسیون چند متغیره، ویژگی‌های n، UCS، E و BTS در روابط مختلف بیشترین تأثیر را بر مقدار SDI دارند.
نوع مطالعه: پژوهشي |
موضوع مقاله:
مهندسی ژئوتکنیک و زمین شناسی مهندسی
دریافت: 1400/9/24 | پذیرش: 1400/11/5 | انتشار: 1400/11/10
دریافت: 1400/9/24 | پذیرش: 1400/11/5 | انتشار: 1400/11/10
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