Scholarlink

<p>Landslide-generated impulse waves are among the most destructive natural hazards, especially in narrow rivers or enclosed reservoirs, often resulting in devastating consequences. This paper analyzes the deformation characteristics and triggering factors of the Tuandigou landslide through field investigations and on-site monitoring. The results show that landslide deformations are primarily manifested as ground cracks and concrete damage in the Dawanzi tunnel. Using the grey relation analysis method, impoundment is identified as the predominant factor influencing landslide deformations, followed by rainfall. By combining the granular flow model and renormalization group turbulence model in FLOW-3D, wave formation and propagation can be accurately described. After verification through grid resolution convergence tests, the numerical models are applied to predicting Tuandigou landslide-generated impulse waves. The results indicate that under the conditions of Maximum unstable landslide volume of 20× 10<sup>6</sup> m<sup>3</sup> and highest water level of 825&#xa0;m, the Maximum primary wave amplitude is 16.01&#xa0;m, and the Maximum run-up on the riverbank opposite the landslide reaches 27.72&#xa0;m. The wave reaching the dam front has a Maximum amplitude of 3.83&#xa0;m, remaining below the dam crest, thereby ensuring structural safety of Baihetan Dam. Furthermore, a predictive formula for wave amplitude propagation is derived, revealing the attenuation law of the maximum wave amplitude along both upstream and downstream river sections. This research provides valuable insights into the risk of landslide-induced disasters in the Baihetan Reservoir area and other similar regions globally.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Deformation characteristics, triggering factors, and impulse wave prediction of the Tuandigou landslide in the Baihetan Reservoir

  • 期刊论文

  • 发表日期：

    2025年10月14日

查看全文
  • Shizhuang Chen,
  • Weiya Xu,
  • Anchi Shi,
  • Long Yan,
  • Xiaoyi Xu,
  • Wei-Chau Xie

摘要

Landslide-generated impulse waves are among the most destructive natural hazards, especially in narrow rivers or enclosed reservoirs, often resulting in devastating consequences. This paper analyzes the deformation characteristics and triggering factors of the Tuandigou landslide through field investigations and on-site monitoring. The results show that landslide deformations are primarily manifested as ground cracks and concrete damage in the Dawanzi tunnel. Using the grey relation analysis method, impoundment is identified as the predominant factor influencing landslide deformations, followed by rainfall. By combining the granular flow model and renormalization group turbulence model in FLOW-3D, wave formation and propagation can be accurately described. After verification through grid resolution convergence tests, the numerical models are applied to predicting Tuandigou landslide-generated impulse waves. The results indicate that under the conditions of Maximum unstable landslide volume of 20× 106 m3 and highest water level of 825 m, the Maximum primary wave amplitude is 16.01 m, and the Maximum run-up on the riverbank opposite the landslide reaches 27.72 m. The wave reaching the dam front has a Maximum amplitude of 3.83 m, remaining below the dam crest, thereby ensuring structural safety of Baihetan Dam. Furthermore, a predictive formula for wave amplitude propagation is derived, revealing the attenuation law of the maximum wave amplitude along both upstream and downstream river sections. This research provides valuable insights into the risk of landslide-induced disasters in the Baihetan Reservoir area and other similar regions globally.