In this part , the first work is pretreatment of a numerical model , including creating calculating grids automatically , improvement of the linear boundary technique and so on . the second work is to estimate the siltation of a basin or channel by liu ' s equation . the third work is to build an edbms ( engineering data base management system ) for the result of mathematical model 其中主要的工作是：其中主要的工作一是数学模型的前处理，计算网格自动生成，线边界法的优化；二是应用刘家驹公式在长江口深水航道治理工程地理信息系统的支持下实现港池、航槽开挖的实时回淤估算；三是将计算成果形成gis管理和支持下的工程数据库系统( engineeringdatabasemanagementsystem ) ，同时尝试解决时间序列数据如地形冲淤变化，潮位、流速过程的分析、查询和显示问题，并实现实时、互动的动态演示及三维可视化。
This paper was set out from the analysis on depth changes and evolvement of washing out and filling out in mawei of fuzhou harbor , the evolvement characters of harbor basin were summed up . there is no relationship between the flow and sediment rate from upper reach and sedimentation , which was closely linked with flow changes and caused directly by tramquill flow under the secure of dama reef ( 2 )通过对马尾万吨码头港池冲、淤演变以及与洪枯季节关系分析，认为港池的冲淤变化与上游来流量及来沙有一定关系，但更主要的是受码头附近河道局部水流条件的影响，后者是造成港池淤积的主要原因。
Based on the analysis of the characteristics of excavated - in harbor basin , this paper discusses the layout pattern and determination of dimensions for large excavated - in harbor basin from the view of security , convenience of operation , easiness of maintenance , as well as the adaptability in the future , so as to provide a reference for layout planning of the same kind of port 摘要通过对挖入式港池布置特点的分析，从安全性、操作方便性、维护的便利性以及未来的适应性等几个方面论述大型挖入式港池的布置形态及尺度的确定，为同类型港区的布置规划工作提供参考借鉴。
In nanpu power plant wharf engineering design , based on sufficient demonstration on the conditions of sand , geology , wharf structure and power plant construction , scheme of dig - in basin was adopted for the first time in fujian , by which , some technical difficulties in wharf operation and power plant construction were successfully resolved , quayline resource was fully utilized , and engineering investment was cut down 摘要南埔电厂煤码头工程设计中，经充分论证泥沙、地质、码头结构和电厂建设等条件，在福建首次大胆采用挖入式港池，较好解决了码头营运、电厂建设中的难点，并充分利用码头岸线资源，节省工程投资。
The construction of harbors and fairways belongs to a typical capital denseness industry , which takes a long time to build and to gain , a little carelessness may result in a huge loss , hereon the ship maneuvering simulator can exert it " s advantage , makes some contribution for our country " s harbors and fairways 港池和航道的建设，属典型的资金密集型产业，是建设、投资回报期都比较长的行业，稍有不慎，就会造成巨大浪费或亏损，而船舶操纵模拟器在此就可以发挥其优势，能为我国的港航建设作出应有的贡献。
For the area of tianjin port which is short of sandy material , cement solidified soil , used as a new type of fill material , can not only help reduce the long distance transportation of sand fill , save energy and cut down engineering cost , but also make full use of the mucky clay dredged from basins and waterways 摘要采用水泥固化土作为新的充填材料，对于缺少砂土的天津港地区，不仅可以减少砂料长途运输，节省能源，降低工程造价，而且可以充分利用港池和航道开挖的淤泥质粘土。
