Integrated System for Design, Analysis and Safety Assessment of Dams by use of Data obtained during Design, Construction and Maintenance

近年来，大坝建设项目的特点是大坝建设规模越来越大，大坝数量越来越多。越来越多的不确定性因素经常引发人们对大坝设计和建设过程中发生的不平衡的怀疑。因此，大坝的设计和施工是否合理，以及大坝在运行过程中的安全性能，都是需要认真考虑的。本研究的目的是建立一套完整的大坝设计、分析和安全评估系统。作为实现该系统的基础，首先将用于数值分析的计算机程序和数据以及大坝的数字化测量数据存储到一种数据库中。其次，建立了一个实用的大坝设计分析系统，以多用户/多任务的形式有效地利用这些代码和数据。该系统由一台超级小型机(具有日语功能的UNIXO/S)为主机、若干个使用个人计算机的终端和一个与数据处理中心相连的平衡计分卡子系统组成网络。最后，利用同一系统建立了一个实用的大坝安全评估系统，从测量数据和卡尔曼滤波法等预测程序来看，虽然该系统是一个原型，本研究中使用的数据库布局只与有限区域的代码和数据相关联，但我们仍然相信这项研究将对大坝工程的发展做出贡献。

In recent years, the characteristics of dam construction projects is to increase the scale as well as the number of dams being constructed. Increasing uncertainty factors often excite suspicions of unbalance occurring during design and construction of dams. Therefore, thoughtful considerations are required to the soundness of design and construction, and to safe performance during operation of dams. The object of this investigation is to build an integrated system for design, analysis and safety assessment of dams. As the basis of realizing such system, firstly, computer codes and data for numerical analyses and digitized measuring data for dams are arranged into a kind of database. Secondly, a practical system for design and analysis of dams is built to utilize those codes and data effectively in the form of multi-user/multitask. This system constitutes a network by a super-mini-computer ( UNIX O/S with japanese language facilities ) as a leading machine, several terminals using personal computers, and a BSC sub-system connecting with a data processing center. Finally, with the use of same system, a practical system for safety assessment of dams is built, judging from the measuring data and the predicting procedures such as Kalman filtering approach.Although this system is a prototype and the database arrangement used in this investigation is associated with only a limited area of codes and data, we still believe that this investigation will contribute in the development of damengineering.