防灾减灾学报

近年来，江西省抚州市花岗岩地区在持续性强降雨作用下频发滑坡灾害，导致全市大范围受灾，严重威胁该区域的生命财产安全。为了获取抚州市花岗岩地区全风化花岗岩抗剪强度参数的可靠取值，本文采用模糊综合评价方法，结合室内直接剪切试验法、三轴剪切试验方法及工程类比经验法进行研究。结果表明：该方法得出的抗剪强度综合取值与符合现场实际情况的抗剪强度参数具有良好的一致性。模糊综合评价法可有效解决抚州市全风化花岗岩抗剪强度参数取值问题，更好地反映全风化花岗岩的真实抗剪强度参数，且通过模糊综合评价法取得的抗剪强度参数比室内直接剪切试验法、三轴剪切试验方法、工程类比经验法更为准确、合理。该研究成果可为抚州市花岗岩区域的工程应用与开发建设提供科学依据。

In recent years, the granite region of Fuzhou City, Jiangxi Province has experienced frequent landslides triggered by persistent heavy rainfall, causing widespread damage across the city and posing serious threats to life and property safety. To obtain reliable shear strength parameters for fully weathered granite in this area,this study employs a fuzzy comprehensive evaluation method combined with laboratory direct shear tests,triaxial shear tests,and engineering analogy empirical methods. The results demonstrate that the comprehensive shear strength values derived from this approach show good consistency with fieldverified shear strength parameters. The fuzzy comprehensive evaluation method effectively addresses the challenge of determining shear strength parameters for fully weathered granite in Fuzhou City, better reflecting its true shear strength characteristics. Notably, the shear strength parameters obtained through this method are more accurate and reasonable compared to those from laboratory tests,triaxial shear tests,and engineering analogy empirical methods. These findings provide a scientific basis for engineering applications and development projects in the granite regions of Fuzhou City.