Through the analysis and discussion for the simulation results , the energy dissipation mechanism of the stepped spillway is preliminarily made clear and some engineering measures for increasing the energy dissipation ratio are proposed , and some useful and practical conclusions are obtained 通过对计算成果的分析和讨论,初步弄清了影响阶梯坝面消能率的机理,并提出了增大坝面消能率的工程措施,得到了一些具有实用价值的结论。
The runoff forecast system , as an important element of the resource style water conservancy , not only is a flood control non - engineering measure , but also can be applied to put water resources to rational use , which becomes more and more attractive by the world recently 作为资源型水利中的重要组成部分? ?径流预报系统不仅是一项适应自然,减免损失非常重要的防洪非工程措施,也是一项合理利用水能、水资源的非工程措施,越来越引起世界各国的重视。
The typical mathematical model of hydraulic culvert and sluice is thoroughly studied . by using the fem program , the model is analyzed . the different conclude can be drawn from using the engineering measures or not using them 对水工涵闸工程混凝土的典型数学模型进行了深入的研究,并应用有限元计算程序对数学模型进行分析,比较了采用和不采用各种工程措施的不同的结果,得出采用相应的工程措施带来的防裂效果,为实际工程采用何种工程措施提供有益的参考。
In chapter 1 , the principle and engineering measures of bringing under control are analyzed at first , the problem of water environment arisen in harnessing closed levees are discussed , too . then present conditions of simulation research on solute movement in groundwater are summarized . in addition , the importance and contents of simulation research on solute movement in groundwater are set forth 论文第一章绪论部分首先分析了圩区治理的原则与工程措施,其次讨论了圩区治理中出现的水环境问题,后在此基础上对国内外地下水溶质运移模拟研究现状进行了概括,并阐述了地下水溶质运移模拟研究的重要意义与内容,最后论述了本研究课题的提出。
Being an widely accepted water conservation strategy , small watersheds management has experienced a gradual phases with its steering guidance as well as concrete measures develop and perfect , from pure water conservation to conservation and development combination , from engineering measures being emphasized to comprehensive control with engineering , biological as well as tillage measures 作为一项成功的水保方略,小流域治理从指导思想和实施方案经历了一个从单纯水保到水保经济并举,从典型示范到全面发展,从单一的工程措施,到生物、工程、耕作措施综合治理、不断发展完善的过程。
It is advisable to use non - engineering measures as supplementary approaches for flood control . without doubt , it is still a important way to construct a series of key works and scientifically to forecast and regulate flood water , so that flood loss can be reduced as far as possible 当然,在国家地区社会、经济发展过程中,投入适当的财力进行流域防洪的工程和非工程措施的建设,科学地预报、调度洪水,使洪水形成的灾害减到最低水平,仍然是大江、大河防洪工作的一项长期任务。
Through checking computations , it was shown that the analogue accuracy of the model was quite high , which can provide important basis for scientific decision - making on engineering measures . through analogue calculation and analysis of many regulation schemes , it was shown that combining the diversion weir works with the bed fixing works at the south branch is reasonable and feasible in the implementation of loushuikouzi river regulation works . in addition , it is suggested that the bed fixing works at the south branch should adopt the improved compound section scheme 经对多个整治方案的模拟计算与分析,表明漏水口子河道整治采用分流鱼嘴工程和南汊固床工程相结合的整治工程措施是合理可行的,通过模型计算研究还提出了南汊固床工程采用复式断面形式的改进方案建议,该方案保证了南汊枯期通航和不断流,而且对南汊及抚远镇的保护具有正面作用。
Lesson engineering measure for research mainly from the sloping fields flow recycling potential analysis with gathering the water technique the both side collecting the region ' s rain - storm flood the data , year declining the water year the flow the data and water and soil conservation data , analysis combine intoing the small river valley flood the path comparing coefficient , water and soil conservation not flow coefficient , revising the new concept of deep etc . flow of year path , establishing synthesizing solving the sloping fields flow recycling the potential computing the model , bring upping gathering the water technique is with the 课题研究主要从坡地径流资源化潜力分析和集水技术两方面入手,以典型区域为代表,收集了该地区暴雨洪水资料、年降水年径流资料及水土保持资料,分析并引入了小流域洪径比系数、水土保持不产流系数、修正年径流深等新概念,建立了综合解决坡地径流资源化潜力计算模型,提出了集水技术的工程措施和方法。
So it can resolve the geology problems . this method has the character of reconnoitering deeply , high ability of penetrating high resistance layer , little random disturbance , observing both far and near , observe in different time windows , receiving the geology information in different depth . so this method is widely used in source exploration and engineering measure 该方法以其具有勘探深度大、穿透高阻层能力强、随机干扰小、可以在远区观测、亦可以在近区观测、选择不同时窗进行观测、可以获得不同深度的地质信息等优点,被广泛的应用于资源勘探和工程勘察领域,成为引人注目的地球物理勘探手段之一。