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Status Of The Dam At The Krasnoyarsk Hpp After 40 Years Of Service

机译:服役40年的克拉斯诺亚尔斯克热电厂大坝的状况

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Field observations of the 40-year-old dam suggest good quality of construction-assembly work and professional operation of the power plant.rnThe concrete dam of the Krasnoyarsk hydroproject is a gravity structue with discharge chambers 4 - 6 m wide in the base, a vertical thrust face, a downstream face inclined at 1:0.76 in the powerhouse section, and at 1:0.8 in the remaining section of the dam (Fig. 1). It has a maximum constructed height of 128 m, and length of 1072.5 m along the crest. The body of the dam is cut into sections 15 m wide and columns 11.5 m long. The expansions joints between the sections are sealed by keys formed from metallic sheets and grouting of a portion of area of the joint in lieu of the asphal-tic keys normally employed. The granite rock bed beneath the lower surface of a heavily grouted curtain extends to a depth of up to 60 m. Weep holes are situated 5 - 7 m fromrnthe upstream face, and are continued for 30 - 40 m into the rock bed.
机译:这座有40年历史的大坝的实地观察表明,该建筑的组装质量和发电厂的专业运作都很好。rn克拉斯诺亚尔斯克水电站的混凝土大坝是重力结构,其底部有4-6 m宽的排放室,垂直推力面,下游面在厂房部分以1:0.76倾斜,在大坝其余部分以1:0.8倾斜(图1)。它的最大建筑高度为128 m,沿波峰的长度为1072.5 m。大坝主体被切成15m宽的部分和11.5m长的圆柱。部分之间的伸缩缝用金属板制成的键密封,并用注浆代替部分通常使用的沥青键来填缝。重浆帷幕下表面下方的花岗岩岩床延伸至最深60 m。泄水孔位于上游面5-7 m,并继续进入岩床30-40 m。

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