Application of FAHP-GIS for Hazard Assessment of Single Landslide at FAST Site

Pan Wangsheng; Li Xin; Zhang Xiaozhou; Fu Liangtong; Yao Xing

doi:10.13961/j.cnki.stbctb.2020.04.015

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Application of FAHP-GIS for Hazard Assessment of Single Landslide at FAST Site

- Application of FAHP-GIS for Hazard Assessment of Single Landslide at FAST Site
- Bulletin of Soiland Water Conservation Vol. 40, Issue 4, Pages: 108-115(2020)
- 作者机构：
  
  1. 黔南民族师范学院旅游与资源环境学院, 贵州都匀,558000
  2. 长安大学水利与环境学院,陕西,西安,710054
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2020.04.015
  CLC： P694
- Published：2020
- 稿件说明：
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Pan Wangsheng, Li Xin, Zhang Xiaozhou, et al. Application of FAHP-GIS for Hazard Assessment of Single Landslide at FAST Site[J]. Bulletin of Soiland Water Conservation, 2020, 40(4): 108-115.
DOI：

Pan Wangsheng, Li Xin, Zhang Xiaozhou, et al. Application of FAHP-GIS for Hazard Assessment of Single Landslide at FAST Site[J]. Bulletin of Soiland Water Conservation, 2020, 40(4): 108-115. DOI： 10.13961/j.cnki.stbctb.2020.04.015.

摘要

[目的] 研究贵州省平塘县500 m口径球面射电望远镜（FAST）工程台址光明顶滑坡的危险性及其区划，为该区及相似地区的滑坡灾害监测与防治提供参考依据。[方法] 选取地形地貌、岩性岩组、地质构造、人类工程活动及灾害历史等作为一级评价指标，在此基础上发展二级评价指标，运用GIS技术构建基于模糊层次法（FAHP）的滑坡危险性评价指标体系，并完全参与对指标隶属度矩阵的运算，开展针对喀斯特单体滑坡危险性评价研究。[结果] 光明顶坡体总体居于中危险和低危险水平，局部高危险，高危险区域主要位于1 H馈源塔和断层破碎带区域的3个支撑柱附近，高危险区约占研究区面积的4%。[结论] 光明顶坡体存在安全隐患，已经对精密的射电望远镜设施的安全运行构成威胁。本文评价结果与实际情况基本相符，评价方法在单体滑坡危险性评价研究方面具有创新性，且可操作。

Abstract

[Objective] Hazard and zoning of the Guangmingding landslide at the engineering site of the 500 m aperture spherical radio telescope (FAST) in Pingtang County

Guizhou Province were studied in order to provide a reference basis for the monitoring and prevention of landslide disaster at the FAST site and similar areas. [Methods] Topography & geomorphy

lithology & rock formation

geological structure

human engineering activities and disaster history were selected as the first-level assessment indexes

and based on this

the second-level assessment indexes were developed. Based on fuzzy analytic hierarchy process (FAHP)

the research on hazard assessment of kast single landslide was carried out

assessment index system was built and the matrices of layers were completely operated by GIS technology. [Results] Most of Guangmingding slope was at generally medium and low hazard levels while some local area was at high hazard level. The high hazard areas were mainly located near the 1 H feed tower and three support columns in the fault fracture zone

and the high hazard areas accounted for about 4% of the study area. [Conclusion] The Guangmingding slope had potential safety problem

which is a threaten to operation of precision radio telescope facilities. The results are basically consistent with the actual situation

the method is innovative and operable in the hazard assessment of single landslide.

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