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一、概况太平哨水电站两条引水隧洞主洞段总长1051.09米,其中1~#洞长498.73米(桩号:0+49.5～5+48.23),2~#洞长552.36米(桩号:0+45～5+97.36),其前后分别与进口渐变段和调压井前压坡段相接。洞型为方园型,设计开挖断面积98.61平米,高10.(?)米,宽10.4米。边墙顶拱采用光面爆破开挖,成洞较规则,起伏差较小,且岩石较新鲜完整,没有大的不利的地质构造和组合。故两条主洞除进口渐变后有一短段采用系统喷
I. Overview The main section of the two diversion tunnels at the Taipingshao Hydropower Station is 1051.09 meters in length, of which 498.73 meters in length are 1 ~ # (stations: 0 + 49.5 to 5 + 48.23) and 552.36 meters in lengths 2 to # (station number: 0 + 45 ~ 5 + 97.36), respectively, before and after the import gradient section and surge pressure gradient section phase. The hole type is square and garden, designed excavation area of 98.61 square meters, 10. (?) Meters high, 10.4 meters wide. The side wall of the arch roof with smooth blasting excavation, more rules into the hole, less difference in ups and downs, and the rock is fresh and complete, there is no big negative geological structure and combination. Therefore, the two main holes in addition to a gradual gradient after the entrance using a system of spray