Landslide risk assessment based on combination weighting-improved TOPSIS

作者：YU De-jie, Lansong Lv, Fanqi Meng, Feng Gao, Jing He, Lixia Zhang, Yufei Li · 发表于：IOP Conference Series Earth and Environmental Science · 年份：2021 · DOI：10.1088/1755-1315/769/3/032022 · 被引用次数：12 · 研究领域：Landslides and related hazards、Geotechnical Engineering and Analysis、Dam Engineering and Safety

Abstract Landslide risk assessment is of great significance to landslide disaster monitoring and prevention. A landslide hazard evaluation method based on combination weighting and improved TOPSIS method is proposed. TOPSIS based on grey correlation degree is applied to landslide hazard evaluation, and a new closeness degree is constructed to evaluate landslide hazard level. The subjective and objective weights of evaluation indexes are obtained by G 1 method and entropy weight method, which improves the accuracy of TOPSIS evaluation results. The case analysis shows that the method has high accuracy, certain rationality and effectiveness, and can provide a reference for landslide disaster prevention.