基于BIM的输水工程安全监测信息集成与可视化分析

Abstract

为了提高长距离输水工程安全监测信息的可视化表达效果，实现海量动态安全监测信息的高效管理，并用以辅助安全分析，提出了基于建筑信息模型(building information modeling，BIM)的输水工程动态安全监测信息集成与网络可视化方法。首先，根据输水工程三维虚拟场景元素构成分析，建立输水工程三维BIM模型；然后，应用关键字段映射的方法建立BIM模型与安全监测信息间的动态耦合；最后，基于WebGL图形加载技术，使用Forge Viewer实现BIM模型的WEB显示。结合天津南水北调工程，开发了相应系统并进行应用，实现了网络环境下工程安全监测动态信息与BIM的可视化集成，为输水工程安全分析提供了支撑平台。

Safety monitoring is an important means to ensure the operational safety of long-distance water diversion project, which dynamically generates a large amount of multi-source data. How to organize and display theses data in a vivid way so as to assisted the safety analysis is an essential technical issue. A BIM (Building Information Modeling)-based network method for water diversion project is proposed, which can dynamically integrate and visualize the safety monitoring information. First, the constituent elements of 3D virtual scene for a water diversion project are analyzed to build a 3D BIM model. Then, the BIM model is dynamically coupled with safety monitoring information by the method of key field mapping. Finally, Forge Viewer is used to realize the WEB browsing of the SMI-coupled BIM model based on WebGL. Using the proposed method, a prototype system is developed and applied in the Tianjin South-to-North Water Diversion Project, and the results indicate that the system can realize visualized integration of the safety monitoring with BIM under network environment, which provides support for the engineering safety analysis of water diversion project.