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一、工程概况鲁布革水电站大坝为风化料心墙堆石坝,坝区河床宽约50m,坝基砂砾石覆盖层深度一般5m左右,坝基和两岸坝肩为白云岩和石灰岩。最大坝高103.5m,坝顶高程1138m,坝顶长217.3m,坝顶宽10m并设有防浪墙,水库总库容1.11亿m~3,有效库容0.74亿m~3。上下游坝坡均为1:1.8。上游坝坡以外为施工高水围堰的两层反滤料、风化料斜墙,保护层石碴料,围堰堆石料是坝体的堆石料一部份。下游围堰距坝趾51m处,围堰为粘土心墙及石碴料填筑。下游坝趾设有混凝土量水堰。坝两岸设置有上中层灌浆洞,沿坝轴线设有单层帷幕
I. Project Overview The dam of Lubuge Hydropower Station is a weathering material rockfill dam with a width of 50m in the dam area and a depth of about 5m on the dam foundation sand and gravel cover. The dam foundation and the dam abutments on the two banks are dolomite and limestone. The maximum dam height is 103.5m, the crest elevation is 1138m, the crest length is 217.3m, the crest width is 10m and the anti-wave wall is provided. The total reservoir capacity is 111 million m 3 and the effective storage capacity is 74 million m 3. Upper and lower dam slope are 1: 1.8. Outside the upstream dam slope, two layers of filter materials, weathering material inclined walls, protective layer ballast materials and cofferdam rockfill materials are two layers of high-quality cofferdam for dam construction. Downstream cofferdam toe 51m, cofferdam core wall and ballast material filling. The downstream dam toe with a concrete water weir. The upper and middle layers of grouting holes are arranged on both banks of the dam, and a single curtain is arranged along the axis of the dam