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

近年来，大坝建设工程的特点是规模不断扩大，数量不断增加。不断增加的不确定性因素常常引起人们对大坝设计和施工过程中出现不平衡的怀疑。因此，对大坝设计、施工的合理性和运行期的安全性都需要进行周密的考虑。本研究的目的是建立一个大坝设计、分析和安全评价的集成系统。作为实现该系统的基础，首先将用于数值分析的计算机代码和数据以及数字化的大坝量测数据整理成一种数据库。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。该系统由一台作为主机的超级小型计算机（带有日语功能的UNIX O/S）、多台使用个人计算机的终端和一个与数据处理中心相连的BSC子系统组成一个网络。最后，利用该系统，建立了一个实用的大坝安全评估系统，从测量数据和预测程序，如卡尔曼滤波方法，判断，虽然这个系统是一个原型和数据库的安排，在这项研究中使用的只有有限的代码和数据，我们仍然相信，这项研究将有助于发展大坝工程。

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.