海河水利Issue(12)：38-42,5.DOI:10.3969/j.issn.1004-7328.2025.12.008
广东地区雨水入渗对土坝稳定性影响分析
Impact of Rainfall Infiltration on Earth Dam Stability in Guangdong
LI Zhen1
作者信息
- 1. Guangdong Province Water Conservancy and Hydropower Technology Center,Guangzhou 510610,China
- 折叠
摘要
Abstract
Guangdong Province has a large number of small and medium-sized reservoirs.In recent years,continuous rainfall has triggered several earth dam landslides,highlighting the significant impact of rainwater infiltration on dam stability.Taking a dam slope landslide event at a small reservoir in Dongyuan County during the"Dragon Boat Water"period in June 2024 as a case study,this paper outlines the emergency response process and utilizes GeoStudio simulation software to analyze the transient seepage field within the dam and the changes in dam slope stability during rainfall.The results show that continuous rainfall significantly increases the water saturation of shallow soil in the dam slope,reduces the shear strength of the soil,and gradually pushes the dam slope stability toward a critical state.It is suggested that relevant provisions be added when revising the Code for Design of Rolled Earth Dams to account for the rainfall characteristics of southern China and their adverse effects on dam slope stability,thereby enhancing the safety of reservoir projects.关键词
土坝/持续降雨/非饱和土/暂态渗流Key words
earth dam/prolonged rainfall/unsaturated soil/transient seepage分类
建筑与水利引用本文复制引用
LI Zhen..广东地区雨水入渗对土坝稳定性影响分析[J].海河水利,2025,(12):38-42,5.
