کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5468764 | 1519054 | 2016 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Studies on hydraulic conductivity and compressibility of backfills for soil-bentonite cutoff walls
ترجمه فارسی عنوان
مطالعات مربوط به هدایت هیدرولیکی و فشرده سازی پسزمینه برای دیواره های خرد کردن بنتونیت خاک
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
خاکستر بنتونیت، هدایت هیدرولیکی، فشرده سازی، قطر بینی، محتوای مخلوط بهینه
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
ژئوشیمی و پترولوژی
چکیده انگلیسی
Fujian standard sand (Sand-F) was used to simulate a sandy soil layer. Hebei bentonite (Bent-H) and Jiangning clay (Clay-J) were served as additives for studying the hydraulic conductivity and compressibility of sand-bentonite/clay mixture backfills. The results indicate that there is an optimum mixing content (Copt) when Bent-H or Clay-J is mixed with the Sand-F. If the content of bentonite/clay is less than Copt, hydraulic conductivity k > 1.0 Ã 10â 7 cm/s and porosity and coefficient of compressibility decrease with the increase of the content of bentonite/clay. While the content of bentonite/clay are greater than Copt, hydraulic conductivity k â¤Â 1.0 Ã 10â 7 cm/s and porosity and coefficient of compressibility increase with the increase of the content of bentonite/clay. As the content of bentonite/clay is less than Copt, clay minerals only fill the sand pore space without influencing the sand skeleton and porosity decreases with the increase of the content of bentonite/clay. While the content of bentonite/clay becomes greater than Copt, sand particles become disconnected and porosity increases with the increase of the content of bentonite/clay. A porosity model of sand-bentonite/clay mixtures was derived based on a micro-geometrical principle. Another equation was also developed to calculate hydraulic conductivity values with the changes of the content of bentonite/clay.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Clay Science - Volumes 132â133, November 2016, Pages 326-335
Journal: Applied Clay Science - Volumes 132â133, November 2016, Pages 326-335
نویسندگان
Haoqing Xu, Wei Zhu, Xuede Qian, Shengwei Wang, Xihui Fan,