کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4929435 1432279 2017 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Apparent density evaluation methods to assess the effectiveness of soil conditioning
ترجمه فارسی عنوان
روش های ارزیابی چگالی ظاهری برای ارزیابی اثربخشی تهویه خاک
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات مهندسی ژئوتکنیک و زمین شناسی مهندسی
چکیده انگلیسی
A study was performed on the University Link and Northgate Link projects in Seattle, WA, to investigate the use of apparent density evaluation methods for the identification of air pockets and plugging issues in the chamber of EPB TBMs. Both air pockets and plugging issues can result from improper soil conditioning and the TBM's inability to mix the soil properly with the conditioning agents. An apparent density below unity indicates the formation of an air pocket in the top part of the chamber and an apparent density above the virgin soil density points to developing plugging issues in the cutterhead bays and pressurized chamber. From the conducted study it can be concluded that the presented apparent density evaluation methods are an effective way to identify issues in the excavation chamber of an EPB TBM and can be used as a mean to improve the soil conditioning process.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tunnelling and Underground Space Technology - Volume 67, August 2017, Pages 175-186
نویسندگان
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