钻孔照相具有直观、明显、可靠、正确的特点,因此,在我们水电勘探中得到了广泛的应用。我们从1971年开始,使用SK-150型钻孔摄影仪,先后在湖北葛州坝电站、黄龙滩电站、广西龙滩电站、贵州乌江电站、湖南五强溪水电站杨五庙坝址等几个大型水电站进行了钻孔照相工作,为查明坝基岩体的软弱夹层分布提供了大量资料,获得了较好的效果。根据我的体会分述如下。一、正确区分地质异常和非地质异常 Drilling photography with intuitive, clear, reliable and correct features, therefore, in our hydropower exploration has been widely used. We started from 1971, using SK-150 drilling camera, successively in Hubei Gezhouba Hydropower Station, Huanglongtan Hydropower Station, Longtan Hydropower Station in Guangxi, Wujiang Power Station in Guizhou, Hunan Wuqiangxi Hydropower Station Yang Wumiao several dam sites Large-scale hydropower station borehole photography work, to find the dam foundation rock mass distribution of weak dissection provides a lot of information, obtained good results. According to my experience are as follows. First, the correct distinction between geological anomalies and non-geological anomalies