کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5006516 1461478 2017 17 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Uplift resistance of belled and multi-belled piles in loose sand
ترجمه فارسی عنوان
مقاومت در برابر انفجار شمع های نازک و چند غلتکی در شن و ماسه سست
کلمات کلیدی
شن، پیلینگ، پایه های عمیق، چند شمع اکتساب داده ها،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی کنترل و سیستم های مهندسی
چکیده انگلیسی
In this study, a series of small scale tests are conducted on belled and multi-belled piles in dry loose sand. The installed piles were carefully instrumented with several LVDTs, strain gauges, and a load cell. Results recorded from a laboratory model tests were used to investigate the potential benefits of installing belled and multi-belled piles in increasing the uplift load capacity and also to reduce vertical ground deformation adjacent to the pile. Finite element modeling (FEM) is also performed to assess the soil particle movement, inside the glass box, during pile uplift displacement. The results unveils that increasing the number of wings will not always increase the uplift resistance of piles. For instance, in comparison with the straight pile, the uplift resistance increases up to 60% when the belled installed at the pile base and it decreases about 4% when installed at the depth equal to 33% of the pile length. In addition, for a similar uplift displacement, the pile with installed belled at the base could reduce 75% of the ground surface deformation, comparing to the straight pile.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Measurement - Volume 109, October 2017, Pages 346-353
نویسندگان
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