Hexi Reservoir Project, applying filter design, is introduced, which is made up of clay central core and sandy gravel dam according to the gradation curve of clay and gravel.

介绍了合溪水库工程的概况，选用坝型为粘土心墙砂砾石坝，根据粘土和砂砾石料场的颗分曲线，对反滤料进行了设计。

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Rock masses classification and gradation for dam foundation is one of the important engineering geological issues in Lixianjiang hydropower project, Yunnan, China.

云南李仙江石门坎水电站坝基岩体分级研究是该坝址工程地质问题研究的重要内容之一。

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