本文選題：模型試驗　切入點：滑坡-碎屑流　出處：《巖土力學》2017年05期 　論文類型：期刊論文

【摘要】：通過開展小尺寸的室內(nèi)模型試驗,研究了在不同滑道坡度和滑道寬度下,滑坡-碎屑流的運動和堆積特性。試驗結(jié)果發(fā)現(xiàn):斜坡坡度增大時,對于細顆粒堆積體,其沖程和平面覆蓋面積均變大;對于粗顆粒堆積體,其沖程和平面覆蓋面積均先變大后變小;兩者的堆積寬度均減小、堆積厚度均增加�；缹挾葘逻\動影響顯著,滑道寬度增加時,其沖程出現(xiàn)小幅度的增加,而平面覆蓋面積和堆積寬度均出現(xiàn)較大幅度的增加,堆積厚度則變小;滑道出口寬度對滑體最終堆積范圍影響顯著,而滑道入口寬度的影響則相對較小。試驗研究成果為滑坡-碎屑流堆積范圍及堆積形態(tài)影響因素的探究提供了一定的理論參考價值。
[Abstract]:The movement and accumulation characteristics of landslide-clastic flow under different slope and width of slide track are studied by using small scale indoor model tests. The results show that when slope gradient increases, fine grain accumulations can be obtained. The stroke and plane coverage area become larger, for coarse grain accumulations, the stroke and plane coverage area first become larger and then become smaller, the stacking width of both decreases and the accumulation thickness increases, and the slide path width has a significant effect on the landslide movement. When the width of the slide track increases, the stroke increases slightly, while the plane coverage area and the stacking width increase by a large margin, and the accumulation thickness becomes smaller, and the width of the exit of the slide track has a significant effect on the final stacking range of the slider. However, the influence of the entrance width of the slide track is relatively small. The experimental results provide a certain theoretical reference value for the study of the accumulation range of landslide and debris flow and the influence factors of the accumulation form.
【作者單位】： 合肥工業(yè)大學土木與水利工程學院;合肥工業(yè)大學土木工程結(jié)構(gòu)與材料安徽省重點實驗室;湖北省電力勘測設(shè)計院;
【基金】：國家自然科學基金項目(No.51179043) 水利部公益項目(No.201401063)~~
【分類號】：P642.22
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本文編號：1614731