Effects of seismic surge waves and implications for moraine-dammed lake outburst  

作　　者：Cui DU Lingkan YAO Yidan HUANG Jiahong YAN Subhashsagar SHAKYA 

机构地区：[1]MOE Key Laboratory of High-speed Railway Engineering, Southwest Jiaotong University, Chengdu 610031, China [2]Road and Railway Engineering Research Institute, Sichuan Key Laboratory of Aseismic Engineering and Technology, Chengdu 610031, China [3]School of Civil Engineering, Henan University of Science and Technology, Luoyang 471023, China

出　　处：《Frontiers of Earth Science》2016年第3期570-577,共8页地球科学前沿（英文版）

基　　金：These works were supported by the National Natural Science Foundation of China （Grant Nos. 41571004, 41172321, and 41030742）, and the Southwest Jiaotong University Doctor Innovation Fund. We thank Yuncheng Zhang, Yiliang Zhou, Haiqiang Guo, and Hongzhou Ai for their work in fields.

摘　　要：Moraine dams usually collapse due to over- topping by the surge wave in the dammed lake, and the surge wave is most likely caused by an earthquake. The seismic water wave （SWW） is a major factor causing the dam to break in the earthquake zone. This paper focused on the SWW by model experiments with a shaking water tank under conditions of various water depths, seismic waves, and peak ground accelerations. Two empirical equations were obtained for estimating maximal wave height for the low and high frequency, respectively. Finally, we present the application of the empirical equations on Midui Glacier Lake in Tibet plateau.Moraine dams usually collapse due to over- topping by the surge wave in the dammed lake, and the surge wave is most likely caused by an earthquake. The seismic water wave （SWW） is a major factor causing the dam to break in the earthquake zone. This paper focused on the SWW by model experiments with a shaking water tank under conditions of various water depths, seismic waves, and peak ground accelerations. Two empirical equations were obtained for estimating maximal wave height for the low and high frequency, respectively. Finally, we present the application of the empirical equations on Midui Glacier Lake in Tibet plateau.

关 键 词：seismic water wave shaking water tankexperiment seismic wave moraine-dammed lake outburst 

分 类 号：P315.2[天文地球—地震学] P642.22[天文地球—固体地球物理学]