Earthquake dynamic response behavior of Xiangchong valley type tailings impoundment in Yunnan, China

doi:10.1007/s11629-017-4468-y

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > Journal of Mountain Science > Journal of Mountain Science-2018 > Vol15 No.1

	Earthquake dynamic response behavior of Xiangchong valley type tailings impoundment in Yunnan, China
	REN Zhe; WANG Kun; ZHANG Qi-shu; XU Ze-min; TANG Zheng-guang; CHEN Ji-pu; YANG Ji-qing; XU Zong-heng
刊名	Journal of Mountain Science
	2018-01
卷号	15 期号:1 页码:82-99
关键词	Tailings Impoundment Dynamic Response Shaking Table Test Medium Stiffness Effect
ISSN号	1672-6316
DOI	10.1007/s11629-017-4468-y
通讯作者	XU Ze-min
英文摘要	Tailings impoundments can potentially collapse due to damage caused by earthquakes, which has frequently occurred around the world. This study takes the proposed valley type tailings impoundment in Yunnan as the research object to analyze the dynamic response behavior under earthquake action with both numerical simulation and physical model test (1:300). The results of both tests show that the dynamic response of the valley type tailings impoundment is characterized by "medium stiffness effect", in other words, in a certain range, the "softer" the unsaturated tailings sand is, the more energy it can dissipate, which leads the decrease of the value of the acceleration amplification factor. In addition, the peak acceleration of the monitoring points increases with the vertical elevation, which indicates that the "elevation amplification effect" exists in the tailings impoundment dynamic response. The middle part of the outer side of the raised embankment reacts more sensitive than the crest, which is similar to the slope dynamic response. The starter dam reacts sensitively under the earthquake excitation, which should be given more attention during the seismic design. The dynamic response rules reflected by the numerical simulation are consistent with the results monitored on the physical model test, although there are some differences between their values. The dynamic response rules of the valley type tailings impoundment can provide basis for the design of the similar projects in this region.
语种	英语
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/20784]
专题	Journal of Mountain Science _Journal of Mountain Science-2018_Vol15 No.1
推荐引用方式 GB/T 7714	REN Zhe,WANG Kun,ZHANG Qi-shu,et al. Earthquake dynamic response behavior of Xiangchong valley type tailings impoundment in Yunnan, China[J]. Journal of Mountain Science,2018,15(1):82-99.
APA	REN Zhe.,WANG Kun.,ZHANG Qi-shu.,XU Ze-min.,TANG Zheng-guang.,...&XU Zong-heng.(2018).Earthquake dynamic response behavior of Xiangchong valley type tailings impoundment in Yunnan, China.Journal of Mountain Science,15(1),82-99.
MLA	REN Zhe,et al."Earthquake dynamic response behavior of Xiangchong valley type tailings impoundment in Yunnan, China".Journal of Mountain Science 15.1(2018):82-99.