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1981年6月,安康水电站左岸自高程373米(缆机平台)至238米计100余米的边坡,已基本开挖完毕。据开挖过程中观察和地质编录资料分析,发现中下0+070～0+140米、▽310米以下岸坡,有约2万米~3的岩体在施工期有塌滑的危险,如不处理,左岸基坑的施工安全将要受到严重威胁。1981年12月至1982年3
In June 1981, the left bank of Ankang Hydropower Station has been basically excavated since its elevation of 373 meters (cable platform) to 238 meters of more than 100 meters. According to the observation of the excavation process and the analysis of geological catalog data, it was found that the rock mass with the height of 0 +070 ~ 0 + 140m and ▽ 310m below the shore had a slippery slope of about 20,000m ~ 3 during the construction period, If left untreated, the construction safety of left bank foundation pit will be seriously threatened. December 1981 to 1982 3