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滑坡抗滑短桩的受力特性模拟研究

李乾坤, 蔡强, 梁炯, 张勇. 2023. 滑坡抗滑短桩的受力特性模拟研究. 钻探工程, 50(5): 29-35. doi: 10.12143/j.ztgc.2023.05.005
引用本文: 李乾坤, 蔡强, 梁炯, 张勇. 2023. 滑坡抗滑短桩的受力特性模拟研究. 钻探工程, 50(5): 29-35. doi: 10.12143/j.ztgc.2023.05.005
LI Qiankun, CAI Qiang, LIANG Jiong and ZHANG Yong, . 2023. Numerical simulation for mechanical characteristics of short anti-sliding pile. DRILLING ENGINEERING, 50(5): 29-35. doi: 10.12143/j.ztgc.2023.05.005
Citation: LI Qiankun, CAI Qiang, LIANG Jiong and ZHANG Yong, . 2023. Numerical simulation for mechanical characteristics of short anti-sliding pile. DRILLING ENGINEERING, 50(5): 29-35. doi: 10.12143/j.ztgc.2023.05.005

滑坡抗滑短桩的受力特性模拟研究

  • 基金项目:

    中国地质调查局地质调查项目“地质灾害防治技术应用”(编号:DD20230087)

详细信息
    作者简介: 李乾坤,男,汉族,1986年生,工程师,工程力学专业,长期从事地质灾害防治技术研究及调查评价工作,四川省成都市郫都区成都现代工业港港华路139号,44226118@qq.com。

Numerical simulation for mechanical characteristics of short anti-sliding pile

  • 抗滑短桩是滑坡常用的治理措施之一,应用较为广泛,但其承载机理尚不清晰。采用FLAC3D模拟程序建立不同长度抗滑短桩加固滑坡的数值模型,分析滑坡模型变形特征以及抗滑短桩受力特性,进一步揭示抗滑短桩加固滑坡的受力特性。研究结果表明:(1)不同长度的抗滑短桩可显著提高滑坡的整体稳定性;(2)随着抗滑短桩桩长的增加,桩身受力趋于均匀,桩-土协同作用增强,滑体最大位移逐渐降低,但降低速率减小;(3)自由段桩长与滑体厚度比值<0.6时,滑坡出现“越顶”破坏现象;(4)建议抗滑短桩的自由段长度与滑体厚度比值取为0.7~0.9。
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出版历程
收稿日期:  2023-03-27
修回日期:  2023-06-27

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