Nov . 21 , 1998 , the spandard meeting of national water conservancy system about the implement of campshedding engineering , after the meeting leaders of the water conservancy department visited the execution place of the composite material of the yangtze river campshedding engineering 1998年11月21日，全国水利系统贯彻堤防工程规范会议在仪征市召开，会后水利部领导参观长江堤防工程合成材料施工现场
Based on the multi - level recursive analysis and the grey system theory , the forecast models on the safety assessment of the levee engineering are founded . and with the modern computer technique of software and hardware , the precautionary mode of the safety assessment of the levee engineering is designed 5 、利用回归分析方法和灰色系统理论建立了堤防工程安全预报模型，初步设计了堤防工程安全预警系统模式，并开发研制了堤防安全监测实时评价软件。
4 . according the characteristic of comprehensive safety assessment of the levee engineering , model of comprehensive safety assessment of the levee engineering is founded by using fuzzy comprehensive appraisal method and ann theory . with the modern computer technique of software and hardware , the system of safety assessment on the levee engineering is developed 4 、根据堤防工程安全综合评价的特点，利用模糊数学及神经网络等理论和方法，建立了堤防工程的安全综合评价模型，并结合计算机软硬件技术开发研制了堤防工程安全综合评价软件。
The experiment shows that compared with the surface protections of the conventional dyke projects , this new type of the surface protection has the merits of higher resistance to high shear tress ; better stability and permeability and has the advantages in improve the eco - environment and facilitate the construction concerned 试验表明：新型生态防洪工程护面连锁块与传统堤防工程的护面形式相比，具有抗高切应力、稳定、透水性好、改善河道生态环境等优点，而且施工方便快捷。
1 . six rules of studying out the assessment index and the method of founding the comprehensive safety assessment structure system of the levee engineering are discussed . also , the design of safety evaluation aggregation of the system is lucubrated and the fourth - class divisional method of safety grade is ascertained 主要研究内容如下： 1 、针对河道堤防工程特点，拟定了构建堤防工程安全综合评价结构体系的原则；探讨了堤防工程安全综合结构体系的建立方法，并对安全评价集及安全综合评价方法等内容进行了深入研究，确定了堤防工程安全评价的四级划分法。
Reliability assessment of xi - luo - du underground water - power plant : the results have been used by the cheng - du surveying , design and research institute for the preliminary design ; （ 2 ） the stress and strain analysis for the xiao - guan - zi sluice and its foundation : the report has been applied for the reinforcement of the foundation ; （ 3 ） the thermal control procedure for the no . 7 - 14 power plant dam segments of the three gorge project ： the research report provides the effective and efficient methods for the controlling of the temperature field in the mass concrete structure ; （ 4 ） the software system development for the long - term monitoring for dikes ： the software can automatically give the results of the seepage field and the probability of soil piping of dikes and underground ; （ 5 ） reliability assessment of xiang - jia - ba underground water - power plant : the results have been used by the zhong - nan surveying , design and research institute for the preliminary design ； （ 6 ） fatigue reliability estimation of shipping berthing pillar : the results give the optimized design scheme and prediction of the structural age ; （ 7 ） 3 - d static and dynamic stochastic finite element analysis for the strength , stability and thermal control problem for xi - luo - du project 溪洛渡水电站超大型地下洞室群围岩稳定的安全可靠性分析：被成都勘测设计研究院应用于比选报告及可行性论证中； （ 2 ）小关子水电站拦河闸坝及地基的应力应变分析：被成都勘测设计研究院应用于地基加固处理方案； （ 3 ）三峡厂房7 # - 14 #坝段温控并缝措施研究：为厂房坝段并缝方案的可行性提供了依据； （ 4 ）堤防工程体系的长期监控预报预警决策系统开发：为监控、预测预报堤防渗漏管涌破坏提供分析软件； （ 5 ）向家坝地下洞室群围岩稳定的安全可靠性分析：被中南勘测设计研究院应用于初步设计方案中； （ 6 ）靠船墩的疲劳可靠度研究：为广东航运规划设计院的靠船墩优化设计和加固提供依据； （ 7 ）溪洛渡高拱坝坝体坝基（坝肩）强度和稳定的三维静动力随机有限元分析及可靠度计算：为溪洛渡重大工程坝体的静动力安全稳定性及温控方案提供依据。
The paper defines the objective function as : minimizing the quantity of works under the condition of enough water area and depth according with the national codes . the paper narrates the development and main technology of ga , and changes the above problem with restraint conditions into the maximizing problem without restraint conditions , the way the paper chooses is the punish function method 本文对港口堤防布置这一工程优化问题进行了目标函数的确定，并将其描述为:在波高满足泊稳条件、水深及水域面积满足国家规范规定航行与停泊条件的前提下，使堤防工程量达到最小。
3 . based on analyzing and comparing the existing methods of determining weight , multiplication scale method , extension ahp method and ann method are used to the safety assessment of the levee engineering . and the model of calculating syncretic weight of safety assessment index is founded by using optimization guideline 3 、通过对已有权重确定方法的比较研究，将确定权重的乘积标度法、可拓层次分析法及神经网络方法应用于堤防工程安全综合评价中；基于最优化准则，建立了评价指标融合权重的确定方法。
The theory and method , such as analytic hierarchy process , grey system and so on , together with the knowledge of embankment engineering , are introduced into the thesis , which performs relatively detailed study on method of comprehensive safety assessment , synthesis assessment structure system , method of measuring assessment index and the precautionary mode of safety evaluation of the levee engineering 本文以河道堤防工程为主要研究对象，应用层次分析、灰色系统等理论和方法，对堤防工程的安全综合评价方法、综合评价结构体系、评价指标度量方法以及堤防工程安全预警模式等方面内容进行了深入的分析研究。
Because the purpose of optimization of breakwater planning in harbor is to reduce the quantity of works with the premise that the protected water area is enough . it is a complex and nonlinear problem , so the paper selects the genetic algorithm ( ga ) as the optimizing tool and forms a ga model of breakwater planning 由于港区堤防布置的优化目的是在满足港口规划的受掩护水域面积的前提下使堤防工程量最小，这是一个十分复杂的问题，亦是一个强非线性问题，因此，本文在优化过程中选择了遗传算法这一工具，建立了堤防优化的遗传算法模型，这是本文的最大特色所在。
