Through analysis of water quality for 17 groups of drainage holes and bore holes, several conclusions are drawn:at 15 sections,ambient water caused mediam corrosion to sections F 1,14,10 and 20 and the gallery of section 28.
英
美
- 經(jīng)對17組排水孔及鉆孔進(jìn)行水質(zhì)全分析，得出以下結論：在15個(gè)壩段中，環(huán)境水對F1壩段、14號壩段、10號壩段、20號壩段、28號壩段護坦廊道存在中等程度的溶出性侵蝕。
