کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
661601 1458136 2009 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Heat conduction with seasonal freezing and thawing in an active layer near a tower foundation
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Heat conduction with seasonal freezing and thawing in an active layer near a tower foundation
چکیده انگلیسی

In this paper, seasonal freezing and thawing of an active layer near a power transmission tower foundation are investigated experimentally with a metal rod buried in an enclosure filled with soil. The measured soil temperatures are used to examine thermal effects of the tower footing and snow cover on seasonal freezing and thawing cycles. It was found that the metal tower has significant thermal effects on the local region around the tower footing. This increases the thaw depth of the active layer and lengthens the freezing/thawing cycle, which adversely affects the foundation stability and safety. These results provide useful new insight of practical utility in the design and maintenance of power transmission line foundations and other infrastructure in northern regions.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 52, Issues 7–8, March 2009, Pages 2068–2078
نویسندگان
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