| 地震与滑坡碎屑流引发堰塞湖涌浪动水压力研究 |
| |
| 引用本文： | 赵海鑫,姚令侃,黄艺丹,苏玥. 地震与滑坡碎屑流引发堰塞湖涌浪动水压力研究[J]. 西南交通大学学报, 2021, 56(3): 558-563. DOI: 10.3969/j.issn.0258-2724.20190323 |
| |
| 作者姓名： | 赵海鑫 姚令侃 黄艺丹 苏玥 |
| |
| 基金项目： | 国家自然科学基金资助项目（41571004），四川省重点研发项目（2019YFG0001） |
| |
| 摘 要： | 为了研究堰塞湖水体在地震以及同震滑坡碎屑流共同作用下产生的涌浪动水压力,设计了振动台造波模型试验,开展了地震作用下堰塞湖涌浪动水压力试验,获取单独地震作用下动水压力数据并同已有地震动水压力计算公式进行比较;开展了滑坡碎屑流作用下的堰塞湖涌浪动水压力试验,获取单独滑坡碎屑流作用下动水压力数据,进而建立了计算滑坡碎屑流作用...
|
| 关 键 词： | 地震 滑坡碎屑流 堰塞湖 复合动水压力 |
| 收稿时间： | 2019-04-10 |
Hydrodynamic Pressures Study of Barrier Lake under Coaction of Earthquake and Clastic Flow Landslide |
| |
| ZHAO Haixin,YAO Lingkan,HUANG Yidan,SU Yue. Hydrodynamic Pressures Study of Barrier Lake under Coaction of Earthquake and Clastic Flow Landslide[J]. Journal of Southwest Jiaotong University, 2021, 56(3): 558-563. DOI: 10.3969/j.issn.0258-2724.20190323 |
| |
| Authors: | ZHAO Haixin YAO Lingkan HUANG Yidan SU Yue |
| |
| Abstract: | A shaking table model experiment was designed to study the hydrodynamic pressures of the barrier lake under the action of an earthquake and a clastic flow landslide. Firstly, an experiment was carried to study the hydrodynamic pressure of the barrier lake under the action of an earthquake to obtain the hydrodynamic pressure data, which was compared with the existing calculation formula of seismic hydrodynamic pressure. Then, an experiment was carried to study the hydrodynamic pressure caused by the surge of the barrier lake under the action of a clastic flow landslide to obtain the hydrodynamic pressure data and a statistical formula was established. Finally, an experiment was carried to study the combined hydrodynamic pressure under the effect of an earthquake and a co-seismic clastic flow landslide and a formula for calculating the combined hydrodynamic pressure caused by an earthquake and a clastic flow landslide was established. The results show that the relationship between the hydrodynamic pressure caused by an earthquake and water depth and seismic peak acceleration can be described by Westergaard’ formula. The hydrodynamic pressure caused by a clastic flow landslide is negatively related to the initial water depth, positively related to the inflow velocity and volume of landslide. The combined hydrodynamic pressure is less than the sum of the single hydrodynamic pressure under the action of an earthquake and the single hydrodynamic pressure under the action of a clastic flow landslide, which is about 51% ? 95% of the sum of two. |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《西南交通大学学报》浏览原始摘要信息 |
|
点击此处可从《西南交通大学学报》下载免费的PDF全文 |
|
