|
|
Journal of Rehabilitation in Civil Engineerin، جلد ۱، شماره ۲، صفحات ۸۰-۸۹
|
|
|
| عنوان فارسی |
|
|
| چکیده فارسی مقاله |
|
|
| کلیدواژه‌های فارسی مقاله |
|
|
| عنوان انگلیسی |
Static and Dynamic Analyses of Micropiles to Reinforce the High Railway Embankments on Loose Beds |
|
| چکیده انگلیسی مقاله |
Construction of railway embankments on loose beds without using any methods of soil improvement (e.g. stone columns in silt and clay beds, deep soil mixing method, jet grouting and also using micropiles individually or in groups form) leads to reduction of embankment slope gradient, which significantly increases the volume of soil operation. Generally, micropile as a reinforcing element with the main characteristics of improving the mechanical-physical properties of soil, is a proper methodology for the aim of improving loose earth with low bearing capacity and intensive settlement characteristics. This paper explores numerical models of non-reinforced and reinforced railway embankments (with the height of 10 to 25 m) rested on loose beds that simulated and analyzed by SLIDE software. It should be considered that in order to reinforce the embankments using different arrangements of micropiles. In addition, the non-reinforced and reinforced embankments were analyzed against different load combinations that consist of railway operational load, permanent weight of the rail line and intense earthquake load. It should be mentioned that LM71 standard load was used as operational load during the simulations. The main purpose of this paper is finding the optimum arrangement of micropiles to reinforce the high railway embankments on loose beds. Therefore, according numerical analyses procedure, it was resulted that the use of micropiles exactly between toe and 1/3 to 1/2 length of the embankment slope is the optimal way to reinforce the embankments on loose beds. |
|
| کلیدواژه‌های انگلیسی مقاله |
|
|
| نویسندگان مقاله |
m اسماعیلی |
assistant professor, school of railway engineering, iran university of science and technology, 16846 iran, tehran, narmak
سازمان اصلی تایید شده: دانشگاه علم و صنعت ایران (Iran university of science and technology)
m قارونی نیک | gharouni nik
assistant professor, school of railway engineering, iran university of science and technology, 16846 iran, tehran, narmak
سازمان اصلی تایید شده: دانشگاه علم و صنعت ایران (Iran university of science and technology)
f خیر |
m.sc., school of railway engineering, iran university of science and technology, 16846 iran, tehran, narmak
سازمان اصلی تایید شده: دانشگاه علم و صنعت ایران (Iran university of science and technology)
|
|
| نشانی اینترنتی |
http://civiljournal.semnan.ac.ir/article_11_8df230c5ff21484f8447231862edc63a.pdf |
| فایل مقاله |
فایلی برای مقاله ذخیره نشده است |
| کد مقاله (doi) |
|
| زبان مقاله منتشر شده |
en |
| موضوعات مقاله منتشر شده |
|
| نوع مقاله منتشر شده |
|
|
|
|
برگشت به:
صفحه اول پایگاه |
نسخه مرتبط |
نشریه مرتبط |
فهرست نشریات
|