针对浅海石油勘探和开发的需要，提出了围堰式钢筋混凝土人工岛的方案。
This paper presents a plan of annular reinforced concrete retained artificial island for oil exploration and development within shallow sea area.
利用水下控制爆破方法拆除了大源渡河中的混凝土纵向围堰。
A longitudinal concrete cofferdam was demolished by way of underwater controlled blasting.
在混凝土芯完成前，围堰只是一堆直接倒入江中的土石。
Until the cement core is built, the cofferdams are made of rubble which is simply dumped into the river.
对该围堰中混凝土心墙的结构特点进行了探讨，并为设计方案提供了论证和建议。
The features of concrete cores of this cofferdam are studied. Besidies, Some suggestions and verifications are put forward for design scheme.
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。
The second stage foundation pit of the TGP will be bounded by the upstream and downstream transverse cofferdams and the longitudinal concrete cofferdam.
三峡工程二期围堰混凝土防渗墙是围堰工程成败的关键。
The concrete impervious wall for the second phase cofferdam in the Three Gorges Project is the key to the cofferdam.
三峡工程二期围堰混凝土防渗墙是围堰工程成败的关键。
The concrete impervious wall for the second phase cofferdam in the Three Gorges Project is the key to the cofferdam.
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