摘要
在 GIS支持下建立数字滑坡 ,利用其空间分析、立体显示能力在三维空间中进行滑坡稳定性分析、定量动态计算滑坡稳定性系数 ,确定滑坡滑动方向 ;研究滑坡启动机制和滑坡运动规律。建立滑坡方向稳定系数概念 ,完成了在三维空间里计算滑坡稳定系数和确定滑坡滑动方向的精确定量方法研究 :完成滑坡启动机制和滑坡运动规律的数字化、可视化三维动态研究。在此基础上建立相应的数学模型对滑坡进行 :静止—运动—停止全过程的三维数字化、可视化动态研究与数字仿真、模拟。最终完成了在
Digital landslide model is built supported by GIS in thi s paper Through spatial analyzing and three dimensional display, this paper analyzes the s tabilization of landslide and calculates the stability coefficient of landslide exactly and verifies the movement direction of landslide We bring forward the concept of the stability coefficient of landslide and research the method of calculating the stability coefficient of landslide and verifying the movement direction of landslide in three dimensional space We complete 3D dynamic study about the digital model and visualization of landslide's start up mechanism and landsl ide's movement rule Basing on those studies, we build a mathematics model to research landslide This model simulates and shows landslide motion process from static state to dynamic state The description of landslide is exactly quantitative in the digital landslide model Finally, we accomplish the 3D dynamic research and digital simulation under support of GIS
出处
《地球信息科学》
CSCD
2003年第3期36-41,共6页
Geo-information Science
基金
中国科学院特别支持领域 :山地灾害-滑坡泥石流基础研究资助 (编号 :962 2 0 6)
香港特别行政区政府资助局资助项目( CUHK43 3 4/98E和 CUHK413 2 /99H)
