山东省水科所同水电部十局于1984年在渔子溪二级电站引水隧洞衬砌中试用水泥裹砂法喷射混凝土获得成功。该隧洞全长7.6公里,衬砌段长5.8公里,开挖断面42米~2,水泥裹砂法自7月初试喷,至9月18日已喷射混凝土800米~3,完成进尺200米,月进尺80米以上,质量全部合格,优良率达83%,取得了较好的技术经济效果。 Shandong Provincial Bureau of Hydropower with the Ministry of hydropower ten board in 1984 in Yuzixi two hydropower station tunnel lining trial cement wrapped sand method of shotcrete success. The tunnel is 7.6km in length with a length of 5.8km and an excavation section of 42m ~ 2. The cement-wrapped sand test was sprayed from the beginning of July until September 18 and 800m ~ 3 of concrete was shot. Footage of more than 80 meters, all qualified quality, good rate of 83%, and achieved good technical and economic results.