
1. 贵州省铜仁公路管理局
2. 三峡大学防灾减灾湖北省重点实验室
3. 贵州省交通规划勘察设计研究院股份有限公司
纸质出版:2025
移动端阅览
刘仕洪, 宋琨, 郭磊, 等. 降雨诱发国道G326顺层滑坡破坏与运动过程研究[J]. 三峡大学学报(自然科学版), 2025,(1):44-49.
刘仕洪, 宋琨, 郭磊, 等. 降雨诱发国道G326顺层滑坡破坏与运动过程研究[J]. 三峡大学学报(自然科学版), 2025,(1):44-49. DOI: 10.13393/j.cnki.issn.1672-948X.2025.01.007.
贵州省国道G326松桃县甘龙镇石板村田堡组顺层滑坡是2020年强降雨诱发的滑坡灾害.在对滑坡变形破坏特征调查的基础上,分析了强降雨诱发滑坡滑动破坏的成因.采用物质点法(material point method
MPM)进行了滑坡运动过程的模拟,揭示了滑坡运动的速度和冲击荷载等变化规律.结果表明:国道G326滑坡是受2020年7月8日的强降雨诱发的中型顺层岩质滑坡,在8日4时的小时降雨量为96.2 mm后约3 h发生整体滑移破坏;物质点法能够较真实地模拟滑坡的运动、堆积过程,模拟的堆积体形态与滑坡破坏调查情况基本一致;滑坡岩土体的最大滑动速度为27 m/s
最大滑动动能为1.8×10~9 J(15 s左右)
最大冲击力为37.98×10~6 kN
位于距滑坡后缘约230 m处.该研究对国道G326沿线类似滑坡灾害的风险防控具有参考价值和工程借鉴意义.
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