کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6447846 1359306 2014 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Flume tests to study the initiation of huge debris flows after the Wenchuan earthquake in S-W China
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات مهندسی ژئوتکنیک و زمین شناسی مهندسی
پیش نمایش صفحه اول مقاله
Flume tests to study the initiation of huge debris flows after the Wenchuan earthquake in S-W China
چکیده انگلیسی
The experimental results showed that the initiation mechanism of debris flows for gentle slopes and steep slopes was different. On steeper slope, incision by run-off water was very rapid initiating directly the start of a debris flow. The debris flow volume increased rapidly by a chain of subsequent cascading processes starting with collapses of the side walls, damming and breaching leading to a rapid widening of the erosion channel. At gentler slopes less intensive run-off incision caused an accumulation of material down slope, which, after saturation, failed as shallow slides transform in a second stage into debris flows. It was demonstrated that the slope was the dominant factor in controlling the scale of the debris flows while the effect of discharge on erosion and the size of the debris flows was less clear.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Geology - Volume 182, Part B, 19 November 2014, Pages 121-129
نویسندگان
, , , , ,