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高300米的努列克(Nurek)坝,目前正在瓦赫什(Vakhsh)河上施工,坝址在一狭窄山谷中,该处岩石坚硬,成砂页岩和砂岩互成状。它是一座垂直心墙土坝,其横断面和纵断面见图1、2。两侧坝壳的材料,主要为冲积砾石和粗砾。此坝建造在地震区,烈度可高达8°～9°,从保证努列克坝坝坡动力稳定的观点出发,故以块石筑成坝身的外部。在最大坝高部位,心墙同岩基接触处夹有一砼块体。此块体中的泄洪廊道,即作为
The 300-meter-high Nurek dam, currently being constructed on the Vakhsh River, is in a narrow valley where the rock is hard and the sand-shale and sandstone are intertwined. It is a vertical core earth dam, the cross-section and longitudinal section shown in Figure 1,2. Dam materials on both sides, mainly alluvial gravel and coarse gravel. The dam is built in the earthquake zone with the intensity of up to 8 ° ~ 9 °. From the viewpoint of ensuring the stability of the Nuleike dam slope, the block is built into the outside of the dam body. In the most part of the dam height, the heart wall with a rock-based contact with a concrete block. Spillway corridor in this block, that is, as