计算机应用 ›› 2012, Vol. 32 ›› Issue (04): 1173-1175.DOI: 10.3724/SP.J.1087.2012.01173

• 典型应用 • 上一篇    下一篇

基于数字高程模型数据的坡面稳定性三维分析方法

张韶华1,2,吉伟勇3,范冬娟1,崔建军3   

  1. 1. 73608部队 三室,南京 210028
    2. 信息工程大学 测绘学院,郑州 450052
    3. 长安大学 地质工程与测绘学院,西安 710054
  • 收稿日期:2011-09-19 修回日期:2011-11-21 发布日期:2012-04-20 出版日期:2012-04-01
  • 通讯作者: 张韶华
  • 作者简介:张韶华(1976-),男,浙江东阳人,工程师,博士研究生, 主要研究方向: 数字摄影测量与遥感应用、图形图像处理;
    吉伟勇(1977-),男,陕西西安人,硕士, 主要研究方向:地理信息系统;
    范冬娟(1976-),女,湖北天门人,硕士, 主要研究方向:遥感应用、遥感影像处理;
    崔建军(1974-),男,陕西西安人,副教授,博士,主要研究方向:计算机图形学、地理信息系统。

Three-dimensional slope stability analysis based on DEM data

ZHANG Shao-hua1,2,JI Wei-yong3,FAN Dong-juan2,CUI Jian-jun3   

  1. 1. Institute of Surveying and Mapping, Information Engineering University, Zhengzhou Henan 450052, China
    2. Mimuro, Unit 73608 of PLA, Nanjing Jiangsu 210028, China
    3. College of Geology Engineering and Geomatics, Chang’an University, Xi’an Shaanxi 710054, China
  • Received:2011-09-19 Revised:2011-11-21 Online:2012-04-20 Published:2012-04-01
  • Contact: ZHANG Shao-hua

摘要: 针对大范围区域内坡面稳定性分析的应用需求和目前边坡稳定性计算方法的缺陷,提出了一种基于数字高程模型(DEM)数据的三维分析方法。该方法采用球面代替椭球面进行滑面的搜索,并通过对二维分析结果的积分运算来计算三维条件下的边坡安全系数,最后根据安全系数确定可能的滑坡位置和形状。实际的应用结果表明,该方法简化了滑体搜索算法,能够保证边坡稳定性分析的精度,并提高了分析计算的效率。

关键词: 数字高程模型, 坡面, 三维分析, 稳定性, 滑面

Abstract: Concerning the application requirements of slope stability analysis in large areas and the defects of current calculation method, a three-dimensional analysis method based on Digital Elevation Model (DEM) data was proposed. In this method, a sphere was used, instead of ellipsoid, to search slippery surface, and the slope safety factor under the three-dimensional conditions was calculated through integral operator with the results of two-dimensional analysis. Finally, the position and shape of possible landslide were determined according to the safety factor. The practical application results confirm that this method simplifies the search algorithm, ensures the accuracy of slope stability analysis, and improves the efficiency of analysis and calculation.

Key words: Digital Elevation Model (DEM), slope, three-dimensional analysis, stability, sliding surface