围堰

A young margay cat peeks over a step at the Smithsonian Tropical Research Institute station on Barro Colorado, a forested island in the Panama Canal waterway. The island rises from Lake Gatun, which formed in 1907 when the Chagres River was dammed during construction of the canal.

一只幼虎从台阶上窥视Smithsonian热带研究所在科罗拉多Barro岛上的试验站，这是巴拿马运河水道上一个被森林覆盖的岛屿，在Gatun湖上立出，湖是1907年在建造运河时围堰Chagres河而形成。

The Three Gorges Dam will be the largest hydropower station and dam in the world, with a1.2 mile stretch of concrete and a370 mile-long reservoir and525 feet deep.

工程完成后，三峡将成为世界上最大的水力发电站，拥有1.2英里长的混凝土纵向围堰、70英里长、25英尺深的水库。

But when the traffic is inconvenient, the cofferdam only constructed by manpower and needs overfall, traditional styles of cofferdam are unuseful.

而对于交通不便，只能以人力施工为主的地区，且需要短期溢流的临时挡水设施，传统的围堰形式则无能为力。

The coffer was sawn out of a block of solid granite.

该围堰是锯出一个坚固的大理石块。

Displacement computation of cutoff wall of second-phase cofferdam in Three Gorges project,shows that the parameter of unloading modulus in Duncan-Chang nonlinear elastic E-μmodel has a fairish influence on precision of calculation.

以三峡二期围堰计算为例，说明Duncan-Chang非线性弹性E-μ模型中的卸荷模量数 kur对计算精度有一定的影响。

With the Wuhan Pivotal Jiangan Mega Bridge of the He-Wu Railway as a practical example, the technique of expanded open cutting in combination with steel plate cofferdam for extra-deep foundation pits is presented in the paper, with the design of the steel plate inclosing structure theoretically analyzed to ensure the construction safety of the excavation of extra-deep foundation pits.

结合合武铁路武汉枢纽江岸特大桥实例，介绍扩大明挖与钢板桩围堰相结合的超深基坑开挖施工技术，并对钢板桩围护结构的设计进行理论分析，以确保超深基坑开挖施工安全，为类似工程提供有益借鉴。

In the railway engineering, the method of cofferdam construction is usually adopted in the bridge base, pier and abutment in deep-water.

铁路工程中，深水处的桥梁基础、墩台多采用围堰施工。

Based on this, it optimizes the model and the elevation of upstream and downstream cofferdam. It studies the design of the bedding course of the downstream concrete slab protection slop of overflow cofferdam. It puts forward relevant risk rate"s calculation models, and gives the risk rate"s calculation methods. Chapter 4 synthetically considers the key-points and difficulties of Shuibuya Hydropower diversion. It carries out diversion scheme suitable for Shuibuya high concrete facing rockfill dam.

对土石过水围堰下游砼板护坡反滤层设计进行了研究，提出反滤层设计的风险模型，并给出了风险率的计算方法；第四章在综合考虑水布垭导流与度汛工程的重点与难点及工程布置、施工要求的基础上，经多方案技术经济比较，研究确定了适合水布垭高面板堆石坝工程特征的导流与度汛方案。

Small projects—weirs and wells and waterworks—have no allure for big-headed politicians.

而小型项目，如围堰、水井和自来水厂等，对自高自大的政客们就没有多少吸引力了。

Microscopic analysis of the coffer reveals that it was made with a fixed point drill that used hard jewel bits and a drilling force of 2 tons.

围堰微观的分析显示，这是一个固定点演练提出，用硬宝石位和2吨的钻探力量。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。