围堰

用改进的AHP法及模糊综合评判理论优选过水围堰堰型

Optimizing the Type of Overtopped Cofferdam by Improved AHP Method and Fuzzy Comprehensive Appraisal Theory

三期RCC围堰工程翻转模板设计与施工

Design and Application of Turn-Over Form for Third-Phase RCC Cofferdam

三峡RCC围堰施工过程温度场仿真分析

Emulation Analysis on Temperature Field in Construction Process of RCC Cofferdam of TGP

三峡RCC围堰施工期外部变形监测

External Deformation Monitoring of RCC Cofferdam during Construction

三期RCC围堰快速施工技术综述

Rapid Construction Technology for Third-Phase RCC Cofferdam

三峡RCC围堰架空式高速胶带输送混凝土系统安装工艺

Erection technique of elevated high speed conveyer of concrete transport for the Three Gorges RCC cofferdam

三峡三期RCC围堰上游面裂缝处理

The Treatment on the Upstream Surface Cracks of the RCC Cofferdam of Phase ⅲ of TGP

RCC围堰堰顶布设了5座水平位移监测点。

Five horizontal and ten vertical displacement cells were installed on the crest of the RCC cofferdam .

架空式高速胶带输送混凝土系统是三峡三期工程RCC围堰混凝土施工的重要运输手段。

The elevated high-speed conveyer of concrete transport for the RCC cofferdam construction in the third stage of Three Gorges Project was noted for its large span , complex structure and special topographic conditions .

把围堰爆破拆除施工方案溶入到围堰的施工建设中，提出的预置集中药室&倾倒爆破这一围堰拆除创新理念，被成功地应用到三峡三期RCC围堰施工和围堰拆除爆破工程中。

Merges the cofferdam blasting demolition construction plan to the cofferdam construction . This cofferdam demolition innovation idea is successfully applied to the Three Gorges third stage RCC construction and cofferdam demolition blasting project .

为了便于RCC施工，在结构设计上对纵向围堰及二期工程坝体作了相应的调整；在施工方案和施工工艺上也进行了优化，这些都为RCC施工创造了条件。

In order to facilitate the RCC construction , the structural design of the longitudinal cofferdam and the second stage dam section is correspondingly revised , and the relevant construction schemes and constructional techniques are optimized .

利用类似工程爆破建立的爆破地震速度反应谱，采用ANSYS通用程序对三峡工程三期碾压混凝土围堰拆除爆破地震作用厂房坝段动力响应进行了计算。

This paper using the blasting vibrant velocity response spectrum of the similar blasting project and the ANSYS program carried through the dynamical response calculation of power houses dam under the vibration by blasting demolishing the third period RCC cofferdam of Three Gorges Project .

根据三峡工程三期RCC围堰施工过程，以及围堰的施工期及运行期的气象条件，采用有限元方法分析研究其温度场，得到了较好的结果，并提出了切实可行的温控措施。

On the basis of meteorological conditions in construction process and in operation stage later on , the temperature field of RCC cofferdam of TGP is analysed with FEM , a few of useful measures for temperature control are suggested .

用动力有限元程序LS-DYNA对长江三峡水利枢纽工程三期碾压混凝土横向围堰爆破拆除进行了数值模拟。

Numerical simulation has been carried out for blasting demolition of rolling compact concrete cofferdam in crosswise direction of which belongs to the third term of the Three-gorge project using dynamic finite element program LS-DYNA .

围堰断面采用两侧石碴、中间风化砂堰体。其余43侧上颌窦共植入63颗种植体，长度10～15mm。

The transverse cofferdam is placed with stone ballast in its side portions , and with weathered sand in the middle portion . 63 implants were placed .

以三峡水库围堰发电期为背景，建立优化动态汛限水位的数学模型，通过MonteCarlo试验得到了求解该模型的近似条件，最后利用多维决策变量多目标动态规划方法来求解。

Based on generate electricity time of Three Gorges reservoir , the paper found math model of optimize dynamic water level , get across Monte Carlo test , the paper gained near condition of this model , finally , using decision variable more goals dynamic programming means .

运用Monte-Carlo方法模拟施工洪水过程，通过调洪计算模型和统计分析模型分析上游围堰堰前水位分布和在不同的导流标准条件下围堰运行的动态风险。

Using the Monte-Carlo method to simulate the flood , the model analyzes the distributing of the flood level in front of the cofferdam and the dynamic risk under the different diversion standard by the flood routing model and the statistics model .

证明运用DDA程序对三峡三期RCC围堰倾倒爆破效果的爆前预测是成功的，该方法对类似工程的爆破设计、施工和安全防护等具有积极的指导意义。

It is been proved successful that using the DDA program to forecast the Third-stage RCC cofferdams . In addition , this method has the positive guiding meaning to the similar project blasting design , construction and the safe protection , etc.

按围堰实际渗水量估算，固化灰浆防渗墙渗透系数小于1×10－6cm／s。

It is calculated according to actual seepage volume of cofferdam that the seepage coefficient of solidified mortar diaphragm wall is less than 10 & 6 cm / s.

三峡二期围堰防渗墙最大高度74m，其中墙深大于40m，采用塑性混凝土。

The second stage cofferdam cut off wall of Three Gorges Project has a maximum height of 74m , among which walls greater than 40m depth were constructed with plastic concrete .

三峡工程三期RCC围堰采用以预置集中药室倾倒爆破为主、两端钻孔炸碎爆破为辅的拆除爆破方案，其中预置集中药室的围堰爆破尤其令人关注。

The plan that the falls blasting by prefab coyote hole primarily , and demolition the both sides drill hole scrap for auxiliary is used in ⅲ - phase RCC cofferdams in the Three Gorges Project , in which prefab coyote blasting attract more attention especially .

三峡工程一期土石围堰全长约2500m，高度30～40m，束窄原河床约30%。

The 1st stage earth and rockfill cofferdam of Three Gorges Project has a total length of some 2500m , with its height of 30 ~ 40m and reduced river width of some 30 % original one .

CSF-30型薄壁防渗墙造墙机主要适用于水利水电工程堤防的堤身、堤基防渗、地下水截水墙、围堰、库区防渗处理等。

CSF-30 thin diaphragm wall making machine is mainly used for anti leakage of dike bodies and dike bases , water cut off walls , cofferdams and water reservoirs .

防止发生的围堰绕流对行船产生影响，避免轮船对围堰的撞击影响施工进度和质量，应在上游距桥址〉0.5L处设置防撞栏；

For preventing sailing ship from colliding the cofferdam under the effects of cofferdam circling flow , the guard fence around the cofferdam should be installed at0.5L from upper reaches .

三峡二期围堰的防渗墙主要建在上、下游横向围堰堰体内，防渗墙最大高度约74m，成槽总面积达7.95万m2，墙厚1.0～1.1m。

Impervious core walls of the TGP Stage ⅱ cofferdams were mainly constructed in the upstream and downstream transverse cofferdams , with their maximum wall height of about 74 m , total trenching area of 79 500 m 2 , wall thickness of 1.0 ~ 1.1 m.

该围堰长约170m，自身结构复杂，周边环境复杂，施工难度很大，被认定为A级拆除爆破工程。

Having a length of 170m , with complex structure and located in complicated surroundings , the ( cofferdam 's ) demolition was very difficult , and therefore , was regarded as A grade demolition blasting engineering in terms of the difficulty in its operation .

三峡一期围堰全长2502m，其中665m长的一段基础中的强风化带含有块球体，弱风化带上部存在断层。

The first stage cofferdam of Three Gorges Project has a length of 2502 m , of which a 665 m long section 's foundation consists of the strong-weathered zone containing large ball rock blocks and the weak-weathered zone with a fault in its upper portion .

黑河大坝上游围堰防渗膜垫层料试验研究

Bedding stuff test research for the upstream cofferdam in Heihe dam

单壁钢围堰深水中环形混凝土封底

Single Wall Steel Coffer Ringlike Bottom Concrete Pavement Under Deep Water

野东西套装越野越美丽锁口式套箱围堰的设计与施工

Wild Things Boxed Set Design and Construction of Lock-Type Boxed Cofferdam