Spatial-temporal distribution of debris flow impact pressure on rigid barrier
文献类型：期刊论文
| 作者 | Liu Dao-chuan; You Yong; Liu Jin-feng; Li Yong; Zhang Guang-ze; Wang Dong |
| 刊名 | JOURNAL OF MOUNTAIN SCIENCE
 |
| 出版日期 | 2019 |
| 卷号 | 16期号:4页码:793-805 |
| 关键词 | Debris flow Impact force Grain composition Spatio-temporal distribution Dynamic coefficient |
| ISSN号 | 1672-6316 |
| DOI | 10.1007/s11629-018-5316-4 |
| 文献子类 | Article |
| 英文摘要 | Grain composition plays a vital role in impact pressure of debris flow. Current approaches treat debris flow as uniform fluid and almost ignore its granular effects. A series of flume experiments have been carried out to explore the granular influence on the impact process of debris flow by using a contact surface pressure gauge sensor (Tactilus (R), produced by Sensor Products LLC). It is found that the maximum impact pressure for debris flow of low density fluctuates drastically with a long duration time while the fluctuation for flow of high density is short in time, respectively presenting logarithmic and linear form in longitudinal attenuation. This can be ascribed to the turbulence effect in the former and grain collisions and grain-fluid interaction in the latter. The horizontal distribution of the impact pressure can be considered as the equivalent distribution. For engineering purposes, the longitudinal distribution of the pressure can be generalized to a triangular distribution, from which a new impact method considering granular effects is proposed. |
| 电子版国际标准刊号 | 1993-0321 |
| 语种 | 英语 |
| WOS记录号 | WOS:000464752500006 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/46470]  |
| 专题 | Journal of Mountain Science_Journal of Mountain Science-2019_Vol16 No.4 |
| 推荐引用方式 GB/T 7714 | Liu Dao-chuan,You Yong,Liu Jin-feng,et al. Spatial-temporal distribution of debris flow impact pressure on rigid barrier[J]. JOURNAL OF MOUNTAIN SCIENCE,2019,16(4):793-805. |
| APA | Liu Dao-chuan,You Yong,Liu Jin-feng,Li Yong,Zhang Guang-ze,&Wang Dong.(2019).Spatial-temporal distribution of debris flow impact pressure on rigid barrier.JOURNAL OF MOUNTAIN SCIENCE,16(4),793-805. |
| MLA | Liu Dao-chuan,et al."Spatial-temporal distribution of debris flow impact pressure on rigid barrier".JOURNAL OF MOUNTAIN SCIENCE 16.4(2019):793-805. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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