engineering geological profile upstream cofferdam 上游围堰工程地质剖面图
This thesis takes Wudongde hydroelectric power station upstream high rockfill cofferdam as the object to study, and carries out the research on seepage and stability of slope.
本文以乌东德水电站上游高土石围堰为研究对象，从渗流和边坡稳定两方面展开研究。
The second stage foundation pit of the TGP will be bounded by the upstream and downstream transverse cofferdams and the longitudinal concrete cofferdam.
三峡工程二期上下游横向围堰与混凝土纵向围堰共同形成基坑，保证二期工程施工。
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