坝基岩体分类及参数取值是坝工建设中一个涉及大坝安全和经济的重要问题。长期以来,国内外许多人对此进行了研究和探索,但仍然没有得到较为满意的解决。关键在于如何真实地反映客观实际,以保证获得大坝的最大安全性和最佳的经济效果。 The classification of dam foundation rock mass and its parameter values ​​are important issues concerning dam safety and economy in dam construction. For a long time, many people both at home and abroad have carried out research and exploration on this issue, but they have still not been satisfactorily resolved. The key is how to truly reflect the objective reality in order to ensure the maximum safety of dams and the best economic results.