南水北调中线水源地面临着水质监测数据自动化程度不高、污染物扩散模拟效率较低、突发性水污染应急能力不足等困难,迫切需要开展数字化转型。基于数字孪生建设的总体要求,综合运用GIS、UE4、WebGL等新一代信息技术,建立了数字孪生水质平台,研发了水质浓度场静态可视化、污染物迁移扩散动态可视化和水质三维分层可视化模型等关键技术,初步实现了水质“四预”功能,切实提升了南水北调中线水源区水环境智能化、精细化管理水平,为推进饮用水水源地水质现代化提档升级提供了技术示范。

The water source of the middle route project of South-to-North Water Diversion is faced with inadequate automation of water quality monitoring, low efficiency of pollutant diffusion simulation, and insufficient emergency response capacity for sudden water pollution. Digital transformation is in urgent need. In line with the general requirements of digital twin construction, a digital twin water quality information platform is established by integrating GIS, WebGL, UE4 and other new generation information technologies. The platform comprises key technologies such as static visualization of water quality concentration field, dynamic visualization of water pollutant diffusion, and three-dimensional vertical layered visualization of water quality. The workflow of the platform includes monitoring and prediction, early-warning and alarming, risk simulation, and intelligent emergency responses. The application of the platform has greatly improved the intelligent and refined management level for the middle route project of South-to-North Water Diversion. It also provides a technical reference for modernizing and upgrading the water quality in water source areas of large-scale water diversion projects.