三维滑坡可视化演绎系统及破坏演变规律跟踪

分析滑坡可视化演绎系统的研究内容与意义,介绍一种基于VC和OpenGL的三维滑坡可视化演绎系统的功能与设计,包括复合地形图的生成与绘制和人机交互的分类与实现等。采用跟踪球算法完成了灵活的人机交互功能。根据滑坡演变规律将滑坡破坏过程划分为5个阶段。针对滑坡发展的不同阶段实施监测,分析滑坡变形特征和影响因素,研究滑坡破坏机制。以秭归鸡鸣寺滑坡为例,根据边坡变形的宏观现象和边坡位移蠕变曲线,结合滑坡跟踪监测预报的方法是可行的,且预报结果准确。

VISUAL DEDUCTIVE SYSTEM OF 3D LANDSLIDE AND DAMAGE EVOLUTION TRACKING

The contents and meaning of researching visual landslide deductive system are analyzed;and the function and design of a visual deductive system of 3D landslide developed by VC and OpenGL are introduced,which refer to constructing and drawing complex topographic maps,classification and implement of interactive function,etc..Flexible interactive function is achieved by track-ball algorithm.According to landslide evolution law,the damage process of landslide is divided into five phases.Each phase of landslide is inspected respectively.The characteristic and affect factors of landslide deformation are analyzed;and landslide deformation mechanism is studied.A landslide example of Zigui Jiming Temple shows that the forecasting method by macroscopical phenomena of slope deformation and creep curve of slope displacement with landslide track inspect is practical,and the forecasting result is reasonable.