dam crest

基本解釋

Revetments protect the space from dam crest to the line a certain distance, normally 2.5m, under the minimum water level of the dam upstream.
護(hù)坡覆蓋的范圍，上游由壩頂護(hù)至水庫最低水位以下一定距離，一般在最低水位以下2.5米。
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Therefore the proper plan of the filling of dam body and the arrangement of access roads to dam crest are the key problems to ensure the strength of construction.
因此，合理的壩體填筑規(guī)劃及上壩道路布置是確保壩體施工的關(guān)鍵技術(shù)問題。
The dam for the Nuozhadu Hydropower Station is located in an area with small valley coefficient, poor construction conditions and difficult arrangement of access roads to dam crest.
糯扎渡水電站大壩所處地段的河谷系數(shù)小，施工條件差，上壩道路布置困難。