台风暴雨下某建筑边坡稳定性分析研究*

福建省由于独特的地理和气候条件，经常遭遇台风暴雨，导致滑坡灾害频发。基于强

度折减理论，采用FLAC3D软件，对福建龙岩市受2023年9月台风“海葵”中影响的某建筑边坡进行稳

定性分析。考虑自重和台风暴雨2种工况，分析边坡的变形破坏机理。结果表明，在自重条件下边坡

安全系数为1.676，处于稳定状态；台风暴雨后，安全系数下降至1.230，低于规范值，显示出失稳破坏

的风险。台风季节的滑坡风险显著增加，边坡截面中塑性贯通破坏区域约5.0 m2 ，与实际滑坡面积相

比误差为11.1%，为极端天气条件下的边坡稳定性评估提供了重要参考。

Due to its unique geographical and climatic conditions，Fujian Province often encounters

typhoons and rainstorms，resulting in frequent landslide disasters. Based on the strength reduction theory，

FLAC3D software is used to analyze the stability of a building slope affected by Typhoon Haikui in September

2023 in Longyan City，Fujian Province. The results show that the safety factor of slope is 1.676 under the

condition of self-weight，which is stable. After the typhoon rainstorm，the safety factor dropped to 1.230，

below the norm value，indicating the risk of instability and damage. Landslide risk increases significantly

during typhoon season. The plastic through failure area of slope section is about 5.0 m2 ，and the error is

11.1% of compared with the actual landslide area，which provides an important reference for slope stability

assessment under extreme weather conditions.

1. Quanzhou Institute of Equipment Manufacturing Haixi Institutes，Chinese Academy of Sciences;

2. Fujian Yonking Geotechnical Co.，Ltd.

摘要：

福建省由于独特的地理和气候条件，经常遭遇台风暴雨，导致滑坡灾害频发。基于强

度折减理论，采用FLAC3D软件，对福建龙岩市受2023年9月台风“海葵”中影响的某建筑边坡进行稳

定性分析。考虑自重和台风暴雨2种工况，分析边坡的变形破坏机理。结果表明，在自重条件下边坡

安全系数为1.676，处于稳定状态；台风暴雨后，安全系数下降至1.230，低于规范值，显示出失稳破坏

的风险。台风季节的滑坡风险显著增加，边坡截面中塑性贯通破坏区域约5.0 m2 ，与实际滑坡面积相

比误差为11.1%，为极端天气条件下的边坡稳定性评估提供了重要参考。

关键词:

边坡稳定性分析强度折减法台风暴雨

Abstract: