Analysis of Disaster Causing Factors of Avalanche Hazards in the Maerdang Dam Area

DOI

10.2991/978-94-6463-658-1_33How to use a DOI?

Keywords

ArcMap; avalanche disaster; integrated analysis and evaluation method; disaster-causing factor analysis

Abstract

Numerous reservoirs and dams are distributed along the main stream of the Yellow River in China. The upper reaches of the Yellow River feature complex and steep terrain, where collapse geological disasters are frequent, often causing significant damage to reservoirs and dams, resulting in considerable economic losses and even human casualties. By quantitatively analyzing the contribution of collapse-inducing factors and assessing the risk of collapse disasters in the study area, theoretical support can be provided to mitigate these risks. In this study, geographic data and historical collapse hazard data were collected from the upper reaches of the Yellow River in the Maerdang dam area. Geographic features were analyzed and combined with existing research to identify seven major contributing factors to collapse hazards: slope height, slope gradient, rock quality, vegetation, rainfall, freeze-thaw cycle, and human activities. Each of these factors was analyzed using ArcMap distribution maps. After comprehensively comparing the pros and cons of various analysis and evaluation methods, the entropy weighting method was used to analyze the weights of collapse-inducing factors in the study area. The probability of collapse occurrence was superimposed using a multifactor comprehensive evaluation model, dividing the study area into three risk zones: low, medium, and high. By evaluating the contributing factors and risk of collapses in the study area, an effective basis for local collapse prevention is established.

Copyright

© 2025 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Jingshuai Gu
AU  - Shaowei Hu
AU  - Han Gao
PY  - 2025
DA  - 2025/03/03
TI  - Analysis of Disaster Causing Factors of Avalanche Hazards in the Maerdang Dam Area
BT  - Proceedings of the 2024 10th International Conference on Architectural, Civil and Hydraulic Engineering (ICACHE 2024)
PB  - Atlantis Press
SP  - 326
EP  - 345
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-658-1_33
DO  - 10.2991/978-94-6463-658-1_33
ID  - Gu2025
ER  -