斜坡单元提取方法研究进展和展望

doi:10.11988/ckyyb.20190210

长江科学院院报 ›› 2020, Vol. 37 ›› Issue (6): 85-93.DOI: 10.11988/ckyyb.20190210

斜坡单元提取方法研究进展和展望

王凯¹, 张少杰^2,3, 韦方强⁴

1.中原工学院建筑工程学院, 郑州 450007;
2.中国科学院山地灾害与地表过程重点实验室, 成都 610041;
3.中国科学院成都山地灾害与环境研究所,成都 610041;
4.中国科学院重庆绿色智能技术研究院,重庆 400714

收稿日期:2019-03-04 出版日期:2020-06-01 发布日期:2020-06-21
作者简介:王凯(1991-),男,河南郑州人,讲师,博士,研究方向为地质灾害防治。E-mail: qianlimingyu@163.com
基金资助:
国家重点研发计划重点专项(2018YFC1505503);河南省高等学校重点科研项目(20A560024)

Slope Unit Extraction Methods: Advances and Prospects

WANG Kai¹, ZHANG Shao-jie^2,3, WEI Fang-qiang⁴

1. Institute of Civil Engineering, Zhongyuan University of Technology, Zhengzhou 450007, China;
2. Key Laboratory of Mountain Hazards and Earth Surface Process, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China;
3. Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China;
4. Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China

Received:2019-03-04 Online:2020-06-01 Published:2020-06-21

摘要/Abstract

摘要： 基于斜坡单元的区域滑坡力学分析模型建立于连续介质理论之上,但斜坡单元定义及提取方法却未能体现连续介质理论所要求的均一性基本假定。从均一性基本假定的角度梳理各类提取方法的优点和限制,并重点介绍最新方法——MIA-HSU方法。然后,指出目前各种提取方法存在的共性问题,即对DEM精度依赖过大问题、提取结果受人为设定阈值影响的问题、缺乏简便易行的优化方法问题。最后建议斜坡单元提取方法中应重视滑坡区域地质环境边界的提取。

关键词: 滑坡灾害, 均一性假定, 斜坡单元, 提取方法, MIA-HSU

Abstract: Slope unit is an important tool for assessment and prediction of regional landslide hazards. Currently several extraction methods based on the different definitions of slope unit has been proposed. In this paper we aim to analyze and summarize the advantages and limitations of common extraction methods from the view of landslide stability analysis. Among these methods the MIA-HSU method appeared in recent years is introduced in emphasis. Some limitations in common of these methods are drawn as follows: the excessive dependency on DEM resolution, the user-defined thresholds, and the lack of convenient optimization method. Finally, we suggest that future extraction method should pay more attention to the extraction of geologic environment boundary.

Key words: landslide hazards, homogeneous assumption, slope unit, extraction method, MIA-HSU

中图分类号:

王凯, 张少杰, 韦方强. 斜坡单元提取方法研究进展和展望[J]. 长江科学院院报, 2020, 37(6): 85-93.

WANG Kai, ZHANG Shao-jie, WEI Fang-qiang. Slope Unit Extraction Methods: Advances and Prospects[J]. JOURNAL OF YANGTZE RIVER SCIENTIFIC RESEARCH INSTI, 2020, 37(6): 85-93.

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斜坡单元提取方法研究进展和展望

Slope Unit Extraction Methods: Advances and Prospects

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