Volume 15 Issue 6
Apr.  2011
Turn off MathJax
Article Contents
HUANG Jiannan, YE Mingli. 2007: NUMERICAL SIMULATION ON THE FAILURE MECHANISM OF A HIGH SLOPE AT A GRANITE MINE SITE. JOURNAL OF ENGINEERING GEOLOGY, 15(6): 779-783.
Citation: HUANG Jiannan, YE Mingli. 2007: NUMERICAL SIMULATION ON THE FAILURE MECHANISM OF A HIGH SLOPE AT A GRANITE MINE SITE. JOURNAL OF ENGINEERING GEOLOGY, 15(6): 779-783.

NUMERICAL SIMULATION ON THE FAILURE MECHANISM OF A HIGH SLOPE AT A GRANITE MINE SITE

  • Received Date: 2006-10-09
  • Rev Recd Date: 2007-01-15
  • Publish Date: 2007-11-29
  • A slope at a granite mine site is comprised mainly fill, silty clay, muck and mucky soil, medium coarse sand with mud, cliff clay, residual sandy clay. The soils are underlain with a granitic bedrock. The maximum height of the slope is 75 m and the height of the soil part above the alluvium is about 50 m. The strength reduction based finite element method is used to study the stability of the slope. The potential mode of slope failure and the safety factor of every sliding mass are obtained. The numerical results show that there are three sliding surfaces in the slope, two of them are shallow sliding surfaces and the third is a deep one. The stability factors of two shallow sliding surfaces are 1.13 to 1.17, which is at a critical state. The stability factor of the deep sliding surface is 1.29, which is at a relatively stable state. According to the analysis results, two advices are put forward: (1) reducing the loading by cutting down the slope; (2) installing anti-slide steps under the sliding.
  • loading
  • [1]  Duncan J M.State of the art:L im it equilibrium and finite-element analysis of slope
    [J].Journal of Geotechnical Engineering,ASCE,1996,122(7):577~596.

    [2]  Ugai K.A method of calculation of total factor of safety of slopes by elastic-p lastic FEM
    [J].Soils and Foundations,1989,29(2):190~195.

    [3]  Matsui,T.,San,K.C..Finite element slope stability analysis by shear strength reduction technique
    [J].Soils and Foundations,1992,32(1):59~70.

    [4]  Griffiths D V,Lane P A.Slope stability analysis by finite elements
    [J].Geotechnique,1999,49(3):387~403.

    [5]  Dawson E M,Roth W H,D recher A.Slope stability analysis by strength reduction
    [J].Journal of Geotechnical and Geoenvironmental Engineering,ASCE,2000,126(1):75~80.

    [6]  张鲁渝,郑颖人.奉节县新城区头道河小区4号路D区高边坡有限元分析
    [J].地下空间,2001,21(5):445~449.ZhangLuyu,ZhengYingren.Cut slope stability analysis of zone D,Road 4 of Fengjie Country by FEM.Underground Space,2001,21(5):445~449.

    [7]  张鲁渝,时卫民,郑颖人.平面应变条件下土坡稳定有限元分析
    [J].岩土工程学报,2002,22(4):487~490.Zhang Luyu,Shi W eim in,Zheng Yingren.The slope stability by FEM under the p lane strain condition.Chinese Journal of Geotechnical Engineering,2002,22(4):487~490.

    [8]  郑颖人,赵尚毅,邓卫东.岩质边坡破坏机制有限元数值模拟分析
    [J].岩石力学与工程学报,2003,22(12):1943~1952.Zheng Yinren,Zhao Shangyi,Deng W eidong.Numerical simulation on failure mechanism of rock slope by strength reduction FEM.Chinese Journal of Rock Mechanics and Engineering,2003,22(12):1943~1952.

    [9]  郑颖人,赵尚毅.有限元强度折减法在土坡与岩坡中的应用
    [J].岩石力学与工程学报,2004,23(19):3381~3388.Zheng Yingren,Zhao Shangy.iApp lication of strength reduction FEM in soil and rock slope.Chinese Journal of Rock Mechanics and Engineering,2004,23(19):3381~3388.

    [10]  郑颖人,赵尚毅,孔位学,等.极限分析有限元法讲座—I岩土工程极限分析有限元法
    [J].岩土力学,2005,26(1):163~168.Zheng Yingren,Zhao Shangyi,Kpmg W eixue,etc..Geotechnical engineering lim it analysis using finite element method—.I Rock and Soil Mechanics,2005,26(1):163~168.

    [11]  赵尚毅,郑颖人,张玉芳.极限分析有限元法讲座—Ⅱ有限元强度折减法中边坡失稳的判据探讨
    [J].岩土力学,2005,26(2):332~336.Zhao Shangyi,Zheng Yingren,Zhang Yufang.Study on slope failure criterion in strength reduction finite element method—Ⅱ.Rock and Soil Mechanics,2005,26(2):332~336.

    [12]  徐文杰,胡瑞林,岳中琦,等.虎跳峡龙蟠右岸边坡稳定性的数值模拟
    [J].岩土工程学报,2006,28(11):1996~2004.Xu W enjie,Hu Ruilin,YueZhongqi,et al..Numerical simulation on stability of the right bank slope of Long-pan in Tiger-leap ing gorge area.Chinese Journal of Geotechnical Engineering,2006,28(11):1996~2004.

    [13]  王晅,张家生,刘学鹏.龙滩水电站航道座滑边坡平面有限元模拟研究
    [J].工程地质学报,2006,14(4):481~487.W ang Xuan,et a.l.2D FEM simulation of sliding cut slope on navigation channel of Longtan hydropower station.Journal of Engineering Geology,2006,14(4):481~487.

    [14]  程东幸,刘大安,等.反倾岩质边坡变形特征的三维数值模拟研究———以龙滩水电站工程边坡为例进行三维变形特征分析
    [J].工程地质学报,2005,13(2):222~226.Cheng Dongxing,L iu Da′an,et a.l.Three-dimension numerical simulation of deformation characteristics of topp ling rock slope———Case study for a slope at Longtan hydropower station.Journal of Engineering Geology,2005,13(2):222~226.

    [15]  黄显贵,陈植华,汪斌.有限元强度折减系数法在北门沟坡滑坡稳定性评价中的应用
    [J].工程地质学报,2006,14(5):665~669.Huang Xiangui,Chen Zhihua,W ang B in.App lication of strength reduction finite element method to slope stability assessment at Beimengou site.Journal of Engineering Geology,2006,14(5):665~669.

  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索
    Article views (3072) PDF downloads(1026) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint