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數學模型的前處理,計算網格自動生成,線邊界法的優化;二是應用劉家駒公式在長江口深水航道治理工程地理信息系統的支持下實現港池、航槽開挖的實時回淤估算;三是將計算成果形成gis管理和支持下的工程數據庫系統( engineeringdatabasemanagementsystem ) ,同時嘗試解決時間序列數據如地形沖淤變化,潮位、流速過程的分析、查詢和顯示問題,并實現實時、互動的動態演示及三維可視化。
According to the present situation of the study for new technology for highway survey and design in china , this paper presents the common use of digital interface which is formed by the engineering data base technology , data base engine and intranet network technology . through this interface , the information collected by the single technology and the middle results and final achievements produced by these single technologies will be provided for the other technologies for share and reference . the data and models required for the process of using each single technology will be quickly provided to form an integrated technology for highway planning , survey and design 本文結合我國公路勘察設計新技術研究的現狀,以工程數據庫技術和網絡技術構建通用的數據接口,將各單項技術所采集到的信息以及這些單項技術所產生的中間結果、最終成果提供給其它技術所共享和引用,快速提供各單項技術應用過程中所需要的數據和各類模型,從二維設計提升為三維設計,由靜態經驗設計提升為動態優化設計,形成從公路規劃、勘察、設計的一體化技術,最終實現公路虛擬景觀實時漫游,達到設計快速方便、方案比選有效可靠、設計效果審查直觀的目的。