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دوره 14، شماره 28 - ( 10-1397 )
جلد 14 شماره 28 صفحات 20-11 |
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mehralizadeh H, makarchian M. Investigation of Load- Penetration Behavior of Spudcan Foundations in Single- Layered Clayey Soils. Marine Engineering 2019; 14 (28) :11-20
URL: http://marine-eng.ir/article-1-667-fa.html
URL: http://marine-eng.ir/article-1-667-fa.html
مهرعلی زاده حجت، مکارچیان مسعود. بررسی عملکرد بار- نفوذ پی اسپادکن در خاک‌های تک‌لایه رسی. مهندسی دریا. 1397; 14 (28) :11-20
1- دانشگاه بوعلی سینا
چکیده: (4081 مشاهده)
استفاده از اسپادکن به‌عنوان پی سکوی حفاری جکاپ مرسوم است. ابعاد مدل، تحکیم رس و نفوذ اسپادکن، مهم‌ترین مسائل در مدل‌سازی این نوع پی‌ها در رس هستند. در این مقاله نفوذ مخروط‌های CPT و پی اسپادکن در خاک رسی تک‌لایه مورد بررسی قرار گرفته است. برای مطالعه تاثیر مقاومت زهکشی نشده رس بر عملکرد بار- نفوذ اسپادکن از خاک اصلاح شده با 5 و 10 درصد سیمان استفاده شد؛ همچنین از دو مخروط CPT با قطرهای متفاوت جهت تخمین مقاومت برشی زهکشی نشده لایه رس استفاده شد. نتایج نشان داد که می‌توان از رس اصلاح شده با سیمان برای مدل‌سازی خاک با مقاومت‌های متفاوت استفاده کرد، با این‌حال بایستی به تغییرات ضرایب ظرفیت باربری در دو حالت با و بدون سیمان دقت کرد. همچنین نتایج نفوذ مخروط‌های CPT نشان داد که در مدل‌سازی فیزیکی، می‌توان با دقت مناسب از مخروط‌های با قطر کوچکتر به‌جای مخروط‌های با قطر متداول بهره گرفت.
فهرست منابع
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