金沙江溪洛渡水电站变动回水区河床组成调查

Investigation on bed material in backwater area of Xiluodu Reservoir on Jinsha River

通过现场查勘、坑测、散点、剖面描述、断面床沙取样、岩性分析等方法,对金沙江溪洛渡水库变动回水区80km范围内的河床组成进行了调查,不仅取得了地质、床沙等大量原型观测资料,而且从空间和平面分布上查明了测验河段内床沙分布及级配组成情况。该勘测调查成果为金沙江溪洛渡水电站水库调度规程研制及泥沙问题研究提供了重要的基础资料。

Through site investigation,bed material sampling,size gradation analysis,and lothological analysis,this paper conducts a study of the composition of channel bed materials in the backwater area of the Xiluodu Hydroproject.A large quantity of field data on channel bed materials and geological information were measured and collected.The special distribution of the composition and size gradation of bed materials are illustrated.The results provide an important basis for the sediment problem research and the establishment of regulation rules of the Xiluodu Hydroproject.