Research on Bending and Sliding Deformation Failure Mechanism of Jiaxi Landslide of Yalong River

苗朝; 沈军辉; 杨佳丽; 徐久燕

doi:10.13409/j.cnki.jdpme.2015.03.022

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Research on Bending and Sliding Deformation Failure Mechanism of Jiaxi Landslide of Yalong River

更新时间：2025-12-11

- Research on Bending and Sliding Deformation Failure Mechanism of Jiaxi Landslide of Yalong River
- Vol. 35, Issue 3, Pages: 411-417(2015)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：10.13409/j.cnki.jdpme.2015.03.022
  CLC： V223;P642.22
- Published：2015
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[1]苗朝,沈军辉,杨佳丽,徐久燕.雅砻江甲西滑坡倾倒弯曲-拉裂形成机制研究[J].防灾减灾工程学报,2015,35(03):411-417.

苗朝, 沈军辉, 杨佳丽, et al. Research on Bending and Sliding Deformation Failure Mechanism of Jiaxi Landslide of Yalong River[J]. 2015, 35(3): 411-417.
[1]苗朝,沈军辉,杨佳丽,徐久燕.雅砻江甲西滑坡倾倒弯曲-拉裂形成机制研究[J].防灾减灾工程学报,2015,35(03):411-417. DOI： 10.13409/j.cnki.jdpme.2015.03.022.

苗朝, 沈军辉, 杨佳丽, et al. Research on Bending and Sliding Deformation Failure Mechanism of Jiaxi Landslide of Yalong River[J]. 2015, 35(3): 411-417. DOI： 10.13409/j.cnki.jdpme.2015.03.022.

摘要

在工程地质勘察的基础上

通过建立边坡地质结构模型

用模拟重力场条件的底摩擦模型试验、二维离散元和有限元相结合的方法

研究了雅砻江甲西滑坡的变形破坏过程及影响因素。结果表明

甲西滑坡的变形破坏模式为逆向层状结构岩体向临空面倾倒弯曲、层间相互错动形成贯通拉裂缝失稳下滑的典型倾倒弯曲-拉裂式。滑坡形成的主要因素为

在暴雨等作用下中-陡倾层状岩体、高陡坡型、河谷下切临空条件及倾外节理发育有发生滑动复活的可能。

Abstract

In order to reproduce the deformation and failure process and analyze the deformation failure mode of Jiaxi landslide

based on the geologic structure model and the base contact friction experiment method

the evolution and characteristics of bending deformation are studied and the discrete element numerical simulation is also used for comparison.The experimental results show that the deformation and failure mode of Jiaxi landslide is typical bending and sliding

in which the anti-inclined stratified rock mass bends towards the free surface

the interlayer dislocates to form the tensile crack and slide instability.The main factors for the formation of Jiaxi landslide are steep dip layer rock mass

highly steep slope type

free surface and bedding outside joint development.Under the rainstorm the action of secondary slide revival may occur.

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references

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反倾向边坡开挖变形破裂响应的物理模拟研究 [J]. 蔡国军,黄润秋,严明,龚满福. 岩石力学与工程学报 . 2008(04)

底摩擦重力试验在倾倒变形岩体稳定性研究中的应用 [J]. 陈孝兵,李渝生,赵小平. 地学前缘 . 2008(02)

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雅砻江甲西滑坡成因机制及其稳定性分析 [J]. 邹小虎,沈军辉,张进林,廖明亮,胡耀飞. 地质灾害与环境保护 . 2006(04)

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锦屏水电站解放沟反倾高边坡变形机制的探讨 [J]. 徐佩华,陈剑平,黄润秋,严明. 工程地质学报 . 2004(03)

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