摘要
具有强大信息管理和可视化功能的GIS已在地下硐室开挖、矿山采掘、边坡等许多工程领域中得到了广泛应用。笔者给出了一种用于地下开挖变形描述和应力分析的方法——有限棱柱法,并就该方法与GIS集成中的数据模型和数据组织方法进行了探讨,建立了基于GIS的虚拟地质体地下开挖变形描述与评价计算的三维可视化系统,并对多语言集成模式和数据可视化方法进行了探讨。同时还给出了该方法的工程应用实例,对该方法的可靠性和有效性进行了验证。
Ground subsidence due to geotechnical eng. could cause a series of damage to surface structures and farmland and surface drainage patterns. GIS with strong functions of information management and visualization was widely used in many eng. fields, such as in tunnel excavation, mining and slope stability, etc.. A method for ground subsidence calculation, called FPEM (finite prism element method) is presented. For building up an effective evaluation system of subsidence damage based on GIS, the 3D data model of pentahedron, data organization approach, data field expression method and data visualization methods were presented and discussed. A spatial data model for 3D data management was developed and a system of ground subsidence damage evaluation is being integrated with GIS, IDL and FPEM. The system was used for many ground subsidence damage evolution projects.
出处
《岩土力学》
EI
CAS
CSCD
北大核心
2004年第6期913-916,共4页
Rock and Soil Mechanics
关键词
GIS
虚拟地质体
有限棱柱法
地表沉陷
五面体数据模型
Finite element method
Geographic information systems
Geotechnical engineering
Information management
Mathematical models
Mining
Slope stability
Surface structure
Three dimensional
Tunneling (excavation)
