摘要
2012年6月28日,金沙江白鹤滩水电站坝址近场区9条沟暴发了泥石流,通过对近场区泥石流灾害的现场调查,获取了这些泥石流沟的相关数据,据此进一步对其泥石流运动特征参数:泥石流容重、流速、流量、一次总量及冲击力进行了计算与分析;结合泥石流影响因素对其发展趋势进行了研究,得出在强地震、干湿循环变化气候的耦合作用下,该区仍可能会发生超过百年一遇规模的泥石流。上述计算与分析结果对白鹤滩水电站坝址近场区泥石流沟防治工程参数设计具有一定的参考作用,也为合理选择泥石流治理方案提供科学依据。
There were 9 debris flow gullies outbreaking on 28 June, 2012. After the field survey in Baihetan hydropower station debris flow gullies and relevant data collection, we calculated and analyzed dynamic characteristic parameters of debris flow including density, velocity of debris flow, flow of debris flow, total volume and impact. The development tendency of debris flow was studied by combined with debris flow influence factors. The areas still will outbreak debris flow over a once in a century scale if strong earthquake and the dry-wet circulation couple. All these dynamic parameters and analysis of development tendency could play an important role in the selection of prevention measures and the design of prevention projects for the debris flow of Baihetan hydropower station.
出处
《水土保持研究》
CSCD
北大核心
2014年第2期238-245,共8页
Research of Soil and Water Conservation
基金
"十二五"国家科技支撑计划课题(2011BAK12B02)
中国长江三峡集团公司科研项目
关键词
金沙江
泥石流
运动特征
发展趋势
Jinshajiang river
debris flows
dynamic characteristics
development tendency
