摘要
上田镇沟位于卡拉水电站坝址下游,地形坡度陡峻,高差大,汇水条件好,沟内固体松散物源丰富,容易引发泥石流。现场勘查将其物源条件概括为四类:沟床堆积物源、沟道两侧崩滑堆积物源、坡面侵蚀物源、人工弃渣物源。分析该区泥石流的形成条件和流体动力学参数,对泥石流的发展趋势和危险性进行预测和评价。结果表明,泥石流形成条件充分,处于发展期,危险性中等。研究成果为卡拉水电站建设中泥石流的防治工程提供依据。
Shangtianzhen Valley is located at the downstream of Kala Hydropower Station along the Yalong River. The mountains are high and steep with good water catchment and rich loose solid substances, making this area vulnerable to mudslides. Based on the analysis of the formation conditions and hydrodynamic parameters, the mudslide＇s hazard is evaluated and its development tendency is predicted. It is concluded that the mudslide is in the period of development with sufficient formation conditions and medium hazard. This study provides a basis for the mudslide＇s prevention and control.
出处
《地质灾害与环境保护》
2014年第3期14-19,共6页
Journal of Geological Hazards and Environment Preservation
关键词
雅砻江
泥石流
形成条件
动力学特征
危险性评价
Yalong River
mudslide
formation conditions
dynamics features
hazard evaluation
