红层地区高拱坝：香溪口水库大坝的设计

Design of High Arch Dam Based on Red Bed

In consideration of the simplicity of hydrogeology conditions of the red bed and lower moisture compressive strength of the rock bed and easiness in shaping in excavation, the feasibility of construction of high arch dam for Xiangxikou hydroproject in Guizhou province has been studied and the factors which should be considered in dam design are discussed. the moisture compressive strength, the elastic modulus and the unit absorption of the bed rock after its treatment with cement injection, or by replacement with concrete met the characteristics required in design, and in this connection construction of high arch dam in the area of red bed not only technically possible but also economically feasible.