三维可视化大坝安全监控系统研发及应用

先进可靠的三维可视化大坝安全监控系统能准确检查大坝结构,展示仪器埋设位置，提高实时监测信息及大坝安全管理的效率。通过对大坝监测数据的深入分析，并依据规范拟定应力、渗流量等监控指标对三维数值模型进行正反分析，可确定大坝变形预警值。以湖南托口水电站为例，采用BIM技术构建了大坝实体、地形场景以及监测信息的三维可视化模型，并开发出集成了三维可视化模型展示、数据查询、数据展示及安全预警四大模块的大坝安全监控系统。该系统能全方位展示大坝结构、监测数据分析结果、监控指标等信息，并直观展示实时信息，实现了大坝安全监控预警，提高了大坝安全管理效率。相关经验可供类似水利水电工程的安全监控系统开发借鉴。

Development and application of 3D visualization system for dam safety monitoring

Advanced and practical 3D visualization system for dam safety monitoring can accurately inspect the dam structure, monitor the buried position of the instrument, and improve the efficiency of real-time monitoring information and dam safety management. In this paper, the dam monitoring data were analyzed deeply firstly, and the monitoring indexes such as stress and seepage flow were worked out according to the technical specification. Then the direct and indirect analysis were carried out by three-dimensional numerical model to determine the early warning value of dam deformation. Taking Tuokou Hydropower Station as an example, a three-dimensional visualization model of dam entity, terrain scene and monitoring information was constructed by using BIM technology, and a dam safety monitoring system that integrates four modules: 3D visualization model display, data query, data display and safety early warning was developed. The system can display the dam structure, monitoring data analysis results, monitoring indexes and other information in an all-round way, and intuitively display the real-time information, realize the dam safety monitoring and early warning function, and improve the efficiency of dam safety management.