【摘要】 峨眉山玄武岩是西南地区水电工程的主要建基岩体 ,其岩体结构明显受其建造的控制 ,不同地区、不同岩相的玄武岩 ,由于岩石组合及原生结构特征等的差异 ,而具有不同的岩体结构特征。本文结合拟建金沙江溪洛渡水电工程、雅砻江官地水电工程等实例 ,从岩相角度分析了玄武岩岩相及原生结构对其岩体结构的控制作用更多还原

【Abstract】 Emei Mountain basalt is a principal rock type used for building foundations of hydropower engineering projects in southwest China. Construction depends greatly on the physical features of the rock mass. Variations in the rock association and the primary structural features, the basalts in different areas or with different lithofacies to have different orck mass structural characteristics. In this paper, the author evaluates the structural features of basaltic masses in conjunction with large hydropower engineering projects in southwest Sichuan Province according to the basalt lithofacies, including Xiluodu hydropower station in Jinsha River and Guandi hydropower station in Yalong River, and the controlment of the basalt lithofacies and primary structure over the rockmass structure.更多还原