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。
Adaptability of dam filling with season and coordination among construction diversion , flood discharge and the whole construction schedule should be taken into consideration . the choose of dam site , layout of the multipurpose project , design of concrete faced rockfill dam , construction and prototype observation are covered in this paper 如在混凝土面板的抗冻耐久性、垫层材料防渗和冻胀特性、坝体填筑与季节的适应性、导流和度汛与总体进度的协调等方面，寒冷地区混凝土面板堆石坝均有其独特之处。
Construction diversion and flood passing are a important part of construction scheme in the design of concrete face rockfill dam . the flood passing standard and measures of construction diversion have special characteristic and are closely related to the construction stage and general schedule of the project 在混凝土面板堆石坝设计中，施工导流及渡汛是施工方案的重要组成部分，混凝土面板堆石坝的导流渡汛标准和方式有其自身的特点，而且与工程的施工分期和总进度安排密切相关。
For example the concrete faced rock - fill dam in frigid zone is distinctive in terms of frost resistance and durability , cushion material seepage prevention and frost heave , adaptability of darn filling with season coordination among construction diversion , flood discharge and the whole construction schedule etc . lianhua construction which is situated in mudanjiang basin of heilongjiang province firstly creates the successful record of construction of large - size faced rock - fill dam in frigid zone , a series of internal and external problems not having a precedent to go by have been solved 如在面板的抗冻耐久性、垫层材料防渗和冻胀特性、坝体填筑与季节的适应性、导流和度汛与总体进度的协调等方面，寒冷地区混凝土面板堆石坝均有其独特之处。莲花工程位于黑龙江省牡丹江流域，首创了高寒地区修建大型面板堆石坝的成功记录，解决了一系列国内外均无先例的难题。
This article first introduces physical geography general situation , clarifies the rank of this hydroproject , the grade and layout of its hydraulic structures , and expounds the necessity and feasibility of this project . then , this paper further gave a clear explanation of the developing summarize of construction diversion for embankment dams . this study made a theoretical preparation for its construction diversion 本文首先介绍了四湖沟水利枢纽工程的天然地理概况，阐明了水工建筑物的等级及工程布置，说明了四湖沟工程建设的必要性和可行性，文中进一步阐明了土石坝施工导流发展的概况，为四湖沟水利枢纽工程施工导流作出了理论上的准备。
Concrete gravity dam , which has many advantages including security , simplicity of design and construction , better applicability to terrain and geology condition and can easily solve difficulties caused by construction diversion and permanent flood discharge , is a dam type predominantly used in practical engineering presently . however , the designing principles used to control construction quantity and reliability of the gravity dam was mainly based on experiences 混凝土重力坝主要具有安全可靠、设计施工技术简单、对地形和地质条件的适应性较好、施工导流和永久性泻洪问题容易解决的优点，是目前在工程中采用较多的一种坝型，但是控制重力坝工程量和安全度的设计原则基本上仍然依赖于经验。
