کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
304268 512794 2013 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Prediction of excess pore water pressure and post-cyclic settlement on soft clay induced by uni-directional and multi-directional cyclic shears as a function of strain path parameters
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات مهندسی ژئوتکنیک و زمین شناسی مهندسی
پیش نمایش صفحه اول مقاله
Prediction of excess pore water pressure and post-cyclic settlement on soft clay induced by uni-directional and multi-directional cyclic shears as a function of strain path parameters
چکیده انگلیسی

The effects of cyclic shear direction, shear strain amplitude and number of cycles on the accumulation of excess pore water pressure and on the recompression were investigated for a cohesive soil by using the multi-directional cyclic simple shear test apparatus in which the uniform or irregular cyclic shear strain was applied to the specimen from two perpendicular directions in the horizontal plane. It is shown that at the same shear strain amplitude and number of cycles, excess pore water pressure and post-cyclic settlement induced by multi-directional cyclic shear are larger than those generated by uni-directional one. For multi-directional cases, these parameters increase with the phase difference. The unique relations of the excess pore water pressure ratio and the post-cyclic settlement versus cumulative shear strain are obtained for uni-directional and multi-directional cyclic shears and also for multi-directional cyclic shear with various phase differences, and these results lead the effect of cyclic shear direction to be negligible. Furthermore, an estimation method of excess pore water pressure ratio and post-cyclic settlement is presented and the validity of this method is confirmed for both uniform and irregular cyclic shears.


► Cyclic shear direction affects cyclic induced-pore water pressure and settlement.
► Effects of cyclic shear direction can be eliminated by using cumulative shear strain.
► Pore water pressure induced by uniform and irregular cyclic shears can be simulated.
► Post-earthquake settlement can be estimated.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Soil Dynamics and Earthquake Engineering - Volume 49, June 2013, Pages 75–88
نویسندگان
, , ,