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规模不断扩大，在建大坝数量不断增加。越来越多的不确定性因素经常引起人们对水坝设计和建造过程中出现的不平衡的怀疑。因此，大坝的设计和施工的合理性以及运行期间的安全性能都是需要认真考虑的。本研究的目的是建立一个完整的大坝设计、分析和安全评价系统。作为实现该系统的基础，首先将大坝数值分析和数字化测量数据的计算机代码和数据整理成一个数据库。其次，建立了一个实用的大坝设计与分析系统，以多用户/多任务的形式有效地利用这些代码和数据。该系统以一台超小型计算机（具有日语功能的UNIX O/S）为主导机，几个使用个人计算机的终端，以及一个与数据处理中心连接的BSC子系统构成网络。最后，利用该系统，从实测数据和卡尔曼滤波等预测过程出发，构建了一个实用的大坝安全评价系统。虽然这个系统是一个原型，并且在本次调查中使用的数据库安排仅与有限区域的代码和数据相关，但我们仍然相信这次调查将有助于damengineering的发展。

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.