在对坝址进行了跨孔测量和作出层析对比图后,总的看法是这里岩体具有很高的声波速度。探测的结果表明,沿大理岩与云母片岩的接触层面上,探测到有声波低速带,认为这些地带有岩溶作用,地面观测也证实了这一点。与低声速相关的断裂带,被认为是可能的岩溶形态,但这种断裂带仅限于极少的地区,主要与灰色大理岩的存在有关。局部地区速度异常可解译为很有限的小岩溶形态。延展这些异常应受到限制,因为根据现有的地质资料难以核实这种征兆的存在。 After making cross-borehole measurements of the dam site and making a tomographic comparison, the general opinion is that the rock mass has a high acoustic velocity. The results of the survey indicate that low-speed acoustic zones were detected at the contact level between marble and mica schist, which are considered to be karstified, as evidenced by surface observations. Fractures related to low sound velocity are considered as possible karst forms, but this fault is restricted to a very few areas, mainly related to the presence of gray marble. The local area velocity anomalies can be interpreted as very limited small karst morphology. The extension of these anomalies should be limited as it is difficult to verify the existence of such signs based on available geological data.