施工导流

• In this paper , those uncertain factors affecting the flood discharge are discussed , especially the uncertainty of flood hydrograph
  本文全面考虑了影响施工导流及泄洪风险的不确定性因素，重点分析了洪水过程的不确定性对施工导流及泄洪风险的影响。
• In consideration of the actual situation in decision making of construction diversion , the fuzzy that exists in the four attribute indexes and decision - making process should be attached importance to
  考虑到施工导流方案决策时的实际情况，对影响导流方案优选的四个属性指标的特点和决策过程进行了分析和研究，认为施工导流方案决策中的模糊性应该受到重视。
• In this model , the peak of flood , flood total outflow and flood process are to be considered . a calculation program with monte - carlo method and a simplified method for calculating diversion risk are suggested
  在该模型中，可考虑水文中的洪峰流量、洪水总量和洪水过程的不确定性及水力的不确定性，提出了用monte - carlo方法计算施工导流风险的步骤和用近似法计算施工导流风险的方法。
• By analyzing risk sources and those uncertain factors affecting the risk , the diversion risk is defined as the probability of the maximum discharge after being adjusted and held higher than the maximum design flood
  通过对导流风险来源和引起导流风险的各种不确定性因素的论述和分析，把施工导流风险定义为天然来(洪)水经过调蓄后，导流泄水建筑物的最大泄水流量超过其设计最大泄水能力的概率。
• This article mainly describes the design conditions , diversion procedure and discharge frequency in the construction diversion of the longkou water control project , as well as its hydraulic calculation in stage diversion , structural style of the cofferdam and the closure design
  摘要主要介绍了黄河龙口枢纽工程施工导流的设计条件、导流方式及导流标准、流量，详细叙述了分期导流的水力计算，围堰结构型式及截流设计。
• Aiming at the flood zoom demand of flood discharging risk , construction diversion risk and the deficiency of the traditional same - frequency flood amplification method , a new optimal amplification method for the flood process realized by the computer is presented in this paper
  摘要针对泄洪风险和施工导流风险计算对洪水缩放的要求和传统洪水同频率放大方法中手工修匀任意性较大等方面的不足，提出采用计算机优化方法来实现洪水过程的自动放大。
• Overflow cofferdam and iversion tunnel are used offen to diverse the flow especialy where or the river discharge changing widely . there are many rivers in mountainous area in our country , so this kind of cofferdam is used relatively frequently in river divertion during construction
  过水围堰和导流隧洞相结合的导流方式对于流量季节性变化悬殊的河流具有一定的适用性。我国的山区性河流较多，因此这种围堰过流的导流方式在施工导流工程中较为常用。
• Optimal design on gongboxia hydro - power station construction during flood period author : tutor : abstract : combined with the significant project - gongboxia hydro - power station construction , emphasized on construction during flood period of power station construction period , the climate character of the upstream of yellow river basin and the practice operation state of cascade reservoirs are analyzed , some problems in construction such as diversion scheme , cofferdam and optimal design of diversion during flood period are also studied , so as to provide technological support for gongboxia hydro - power station construction period
  本论文结合国家重点工程项目?公伯峡水电站的建设，以电站建设期施工渡汛为研究重点，从实施出发，分析黄河上游气候特性和梯级水库群的实际运行状况，对施工渡汛中的主要问题?施工导流方案、施工围堰及导流度汛的优化设计等进行了比较全面深入的研究，为公伯峡水电站施工期度汛提供技术支撑。
• It elucidates the grade and layout of the construction diversion structures , testifies the technical rationality and economic advisability that the alternative of the cofferdam uses to dam up the discharge ( p = 10 % , q = 275 . 2m3 / s ) during the post - flood period , was made by hydraulic calculation , structural design , investment comparison , progress analysis and investment risk analysis
  文中说明了施工导流建筑物的等级、水工布置。通过水力学计算、结构设计、导流方案投资比较、进度分析和投资风险分析，说明了四湖沟水利枢纽工程采用围堰挡汛后时段洪水导流方案的合理性和经济性，为施工决策提供理论依据。