کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5787709 | 1641767 | 2017 | 34 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Experimental study on soil-water characteristic curve for silty clay with desiccation cracks
ترجمه فارسی عنوان
مطالعات تجربی بر روی منحنی مشخصه خاویار آب برای خاک رس سیلیتی با ترک خوردگی
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
ترک، خاک غیر اشباع، منحنی مشخصه آب خاک، هدایت هیدرولیکی، هضم
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
مهندسی ژئوتکنیک و زمین شناسی مهندسی
چکیده انگلیسی
Cracks are ubiquitous in soils and can provide preferential pathways for rainfall infiltration and contaminant transport. The soil-water characteristic curve (SWCC) for a cracked soil is required when conducting seepage analysis. However, measuring SWCCs for cracked soils is difficult due to two reasons: (1) The presence of cracks leads to a significant change in the water content at extremely low suctions that cannot be controlled accurately; (2) The full development of cracks generally requires a large apparatus to accommodate the representative elementary volume of a crack network. This study aims to develop an experimental method to measure the SWCC for a silty clay with desiccation cracks. A large apparatus, 350Â mm in diameter and 280Â mm in height, was developed, which is capable of controlling extremely low suctions (<Â 0.01Â kPa) at an accuracy of 0.005Â kPa and accommodating a clay sample with fully developed crack networks. The crack development in the soil sample was observed, providing necessary parameters for the prediction of SWCCs based on a theoretical model for cracked soils. The drying and wetting SWCCs for a silty clay with desiccation cracks were measured in the suction range from 0.01Â kPa to 300Â kPa, and compared with the SWCCs predicted using the theoretical model.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Geology - Volume 218, 23 February 2017, Pages 70-76
Journal: Engineering Geology - Volume 218, 23 February 2017, Pages 70-76
نویسندگان
J.H. Li, Z. Lu, L.B. Guo, L.M. Zhang,