Abstract: The safety of the system formed by the dam, its foundation, the reservoir, and the downstream area of the dam should be evaluated on its structural, hydraulic, operational and environmental components. In particular, the structural safety assessment of an existing dam is based on the establishment of correlations between the main loads, its structural properties, and its structural responses. The values of observed responses are compared to predicted values obtained by structural behavior models or by historical observations. Over the years, new developments in technological devices have been introduced in this field, namely through the implementation of automated data acquisition systems. This evolution, associated with very important progresses in information systems technology, has raised new challenges, but has also provided new opportunities, such as the development of data management systems that allow the person responsible for dam safety to access data, interpret the information, and make decisions, as quickly as possible.
The National Laboratory for Civil Engineering (LNEC) has developed the GestBarragens system, which was designed and developed using a modular approach, based on a common data architecture that can be accessed through a Web interface. This paper intends to show the improvements that the GestBar. ragens system provides to the activities related to the safety control of more than one hundred large concrete and embankment dams, including the observation of several physical quantities measured by the monitoring systems, the interpretation of the information and the transmission of warnings to the entities responsible for the dam's safety. As the development of the GestBarragens system is an ongoing process, future developments will also be addressed in this paper.

Key words: information support system, safety control, monitoring, warning system

摘要： 对由大坝、坝基、水库和大坝下游区域组成的系统，应从结构、水力、运行和环境等方面评价其系统安全性。尤其是对已建大坝的结构安全评价应以建立主荷载、结构性能和结构响应之间的相关性为基础。将观测到的响应值与基于结构性态模型或历史观测数据得到的预测值进行比较。多年来，技术设备方面的新进展即自动数据采集系统的采用不断被引入这一领域。伴随信息系统技术的重要发展，这一变化面临着新的挑战，但同时也提供了新的机遇，如数据管理系统的开发，可使大坝安全管理人员尽快访问数据、解读信息并做出决策。
       葡萄牙国家土木工程实验室（National Laboratory for Civil Engineering, LNEC）开发了GestBarragens系统，该系统采用模块化方法设计和开发，基于Web界面访问公共数据架构。笔者旨在介绍GestBarragens系统如何优化针对100余座大型混凝土坝和土石坝开展的大坝安全控制相关的活动，包括通过监测系统对某些物理量进行观测、信息的解读和向负责大坝安全的实体组织传达预警信息。由于GestBarragens系统的开发是一个不断演进的过程，笔者还将讨论未来的开发。

关键词: 信息支持系统, 安全控制, 监测, 预警系统