Volume 22 Issue 3
Jun.  2014
Turn off MathJax
Article Contents
LU Yongxing, XIAO Jianzhang, XU Chong, XIE Qizhi, YUAN Hua. 2014: DEFORMATION MECHANISM AND STABILITY ANALYSIS OF LANDSLIDE UNDER IMPOUNDMENT AND CONSTRUCTION. JOURNAL OF ENGINEERING GEOLOGY, 22(3): 386-395. doi: 10.13544/j.cnki.jeg.2014.03.006
Citation: LU Yongxing, XIAO Jianzhang, XU Chong, XIE Qizhi, YUAN Hua. 2014: DEFORMATION MECHANISM AND STABILITY ANALYSIS OF LANDSLIDE UNDER IMPOUNDMENT AND CONSTRUCTION. JOURNAL OF ENGINEERING GEOLOGY, 22(3): 386-395. doi: 10.13544/j.cnki.jeg.2014.03.006

DEFORMATION MECHANISM AND STABILITY ANALYSIS OF LANDSLIDE UNDER IMPOUNDMENT AND CONSTRUCTION

doi: 10.13544/j.cnki.jeg.2014.03.006
Funds:

  • Received Date: 2013-02-11
  • Rev Recd Date: 2014-04-10
  • Publish Date: 2014-06-25
  • The Guanyinping landslide turned up evident deformation. There were two possible cause factors. One is the first-stage impoundment of Xiangjiaba hydropower station and the other is the rebuilding construction of the the 307 provincial road whose cutting and filling project had just been finished. The real cause triggering the landslide deformation remains to be controversial between the reservoir impoundment and the construction of the rebuilt road. Based on the landslide deformation behaviors and the results of in-situ monitoring, the deformation mechanism of the landslide is discussed specifically in this paper. In order to analyze the stability of the landslide, a 2D model is developed by using the finite element numerical simulation. The factors of safety under various operational conditions are calculated through shear strength reduction method. The result shows the following three points:(1)Construction of the rebuilt road and the rising of reservoir water level are both against the whole stability of the landslide, especially the rising of reservoir water level;(2)After the construction of the rebuilt road and the first-stage impoundment, the landslide is in the critical stable state. Supposing no reinforcement measure is taken, the factor of safety reduces continually under the second-stage impoundment and the normal impoundment;(3)The treatment measure of cutting slope and unloading is presented. The factor of safety can meet the requirements of norms under the second-stage impoundment and the normal impoundment after being controlled. The relevant conclusions and methods proposed can provide the references for the treatment for the similar landslides.
  • loading
  • [1] Paronuzzi P,Rigo E,Bolla A.Influence of filling-drawdown cycles of the Vajont reservoir on Mt.Toc slope stability[J].Geomorphology, 2013, 191: 75~93.

    [2] 王明华, 晏鄂川.水库蓄水对库岸滑坡的影响研究[J].岩土力学, 2007, 28 (12): 2722~2725.Wang Minghua, Yan Echuan.Study on influence of reservoir water impounding on reservoir landslide.Rock and Soil Mechanics, 2007, 28 (12): 2722~2725.

    [3] 朱继良, 黄润秋.某大型水电站水文站滑坡蓄水后的稳定性三维数值模拟研究[J].岩石力学与工程学报, 2005, 24 (8): 1384~1389.Zhu Jiliang, Huang Runqiu.Study on the stability of Shuiwenzhan slope in a large hydrostation after impoundment by using 3D numerical modeling.Chinese Journal of Rock Mechanics and Engineering, 2005, 24 (8): 1384~1389.

    [4] Al-Homoud A S,Taqieddin S A,Husein Malkawi A I,et al.A critical overview of the geotechnical studies at the Na'ur Landslide No.4 in Jordan: Causes and measures[J].Engineering geology, 1995, 40 (1—2): 103~136.

    [5] 张帆宇, 刘高,谌文武,等.袁家湾滑坡在切坡开挖过程中的演化机理[J].岩土工程学报, 2009, 31 (8): 1248~1254.Zhang Fanyu, Liu Gao, Chen Wenwu, et al.Evolution mechanism of Yuanjiawan landslide in the process of slope cutting and excavation.Chinese Journal of Geotechnical Engineering, 2009, 31 (8): 1248~1254.

    [6] 孙广忠.工程地质与地质工程[M].北京:地震出版社, 1993.Sun Guangzhong.Engineering Geology and Geological Engineering.Beijing: Seismological Press, 1993.

    [7] 王思敬, 马凤山,杜永廉.水库地区的水岩作用及其地质环境影响[J].工程地质学报, 1996, 4 (3): 1~9.Wang Sijing, Ma Fengshan, Du Yonglian.On the rock-water interaction in reservoir areas and its geoenvironmental effect.Journal of Engineering Geology, 1996, 4 (3): 1~9.

    [8] 李维朝,戴福初,李宏杰,等.220 kV盐津变电所开挖边坡变形机制分析[J].岩石力学与工程学报, 2008, 27 (增):2807~2813.Li Weichao, Dai Fuchu, Li Hongjie, et al.Deformation mechanism analysis of a cutting slope on 220kV Yanjin transformer substation.Chinese Journal of Rock Mechanics and Engineering, 2008, 27 (S1):2807~2813.

    [9] 胡修文, 唐辉明,刘佑荣.三峡库区赵树岭滑坡稳定性物理模拟试验研究[J].岩石力学与工程学报, 2005, 24 (12): 2089~2095.Hu Xiuwen, Tang Huiming, Liu Yourong.Physical model studies on stability of Zhaoshuling landslide in area of Three Gorges reservoir.Chinese Journal of Rock Mechanics and Engineering, 2005, 24 (12): 2089~2095.

    [10] 何满潮.滑坡地质灾害远程监测预报系统及其工程应用[J].岩石力学与工程学报, 2009, 28 (6): 1081~1090.He Manchao.Real-time remote monitoring and forecasting system for geological disasters of landslides and its engineering application.Chinese Journal of Rock Mechanics and Engineering, 2009, 28 (6): 1081~1090.

    [11] 张季如, 曹星.山区公路开挖边坡的稳定性研究及其工程治理——以大甘坪路堑边坡为例[J].工程地质学报, 2003, 11 (1): 64~69.Zhang Jiru, Cao Xing.Research on stability of cut slopes and their treatment for mountain road—Take the cut slopes in Daganping as example.Journal of Engineering Geology, 2003, 11 (1): 64~69.

    [12] 邓华锋, 李建林,王乐华,等.基于强度折减法的库岸滑坡三维有限元分析[J].岩土力学, 2010, 31 (5): 1604~1608.Deng Huafeng, Li Jianlin, Wang Lehua, et al.3D finite element analysis of reservoir bank landslide based on strength reduction method.Rock and Soil Mechanics, 2010, 31 (5): 1604~1608.

    [13] 张雪东, 陈剑平,黄润秋,等.呷爬滑坡稳定性的 FLAC-3D 数值模拟分析[J].岩土力学, 2003, 24 (增): 113~116.Zhang Xuedong, Chen Jianping, Huang Runqiu, et al.FLAC-3D numerical simulation analysis of stability of Gapa landslide.Rock and Soil Mechanics, 2003, 24 (S1): 113~116.

    [14] 雷远见, 王水林.基于离散元的强度折减法分析岩质边坡稳定性[J].岩土力学, 2006, 27 (10): 1693~1698.Lei Yuanjian, Wang Shuilin.Stability analysis of jointed rock slope by strength reduction method based on UDEC.Rock and Soil Mechanics, 2006, 27 (10): 1693~1698.

    [15] Duncan J M.State of the Art: Limit equilibrium and finite element analysis of slopes[J].Journal of Geotechnical Engineering, ASCE, 1996, 122 (7): 577~596.

    [16] 李宏杰,戴福初,杨军,等.某滑坡蓄水后的三维稳定性数值分析[J].水文地质工程地质, 2007, 34 (6): 59~62.Li Hongjie, Dai Fuchu, Yang Jun, et al, Stability assessment of a landslide after impoundment by using 3D numerical analysis.Hydrogeology and Engineering Geology, 2007, 34 (6):59~62.

    [17] 赵尚毅, 郑颖人,时卫民,等.用有限元强度折减法求边坡稳定安全系数[J].岩土工程学报, 2002, 24 (3): 343~346.Zhao Shangyi, Zheng Yingren, Shi Weimin, et al.Analysis on safety factor of slope by strength reduction FEM.Chinese Journal of Geotechnical Engineering, 2002, 24 (3): 343~346.

    [18] Dawson E M,Roth W H,Drescher A.Slope stability analysis by strength reduction[J].Geotechnique, 1999, 49 (6): 835~840.

    [19] Zienkiewicz O C,Humpheson C,Lewis R W.Associated and non-associated visco-plasticity and plasticity in soil mechanics[J].Geotechnique, 1975, 25 (4): 671~689.

    [20] 张振华, 冯夏庭,周辉,等.基于设计安全系数及破坏模式的边坡开挖过程动态变形监测预警方法研究[J].岩土力学, 2009, 30 (3): 603~612.Zhang Zhenhua, Feng Xiating, Zhou Hui, et al.Research on dynamic early warning method of slope deformation monitoring during excavation based on designed safety factor and failure mode.Rock and Soil Mechanics, 2009, 30 (3): 603~612.

    [21] 邓建辉, 张嘉翔,闵宏,等.基于强度折减概念的滑坡稳定性三维分析方法(Ⅱ):加固安全系数计算[J].岩土力学, 2004, 25 (6): 871~875.Deng Jianhui, Zhang Jiaxiang, Min Hong, et al.3D stability analysis of landslides based on strength reduction(Ⅱ):Evaluation of reinforcing factor of safety.Rock and Soil Mechanics, 2004, 25 (6): 871~875.

    [22] 连镇营, 韩国城,孔宪京.强度折减有限元法研究开挖边坡的稳定性[J].岩土工程学报, 2001, 23 (4): 407~411.Lian Zhenying, Han Guocheng, Kong Xianjing.Stability analysis of excavation by strength reduction FEM.Chinese Journal of Geotechnical Engineering, 2001, 23 (4): 407~411.

    [23] 刘涛, 沈明荣,陈建峰,等.水下岩质边坡稳定性计算模式的探讨[J].水文地质工程地质, 2006, 33 (4): 5~8.Liu Tao, Shen Mingrong, Chen Jianfeng, et al.Calculating mode for the stability of underwater rock slope.Hydrogeology and Engineering Geology, 2006, 33 (4): 5~8.

    [24] 中华人民共和国国家经济贸易委员会.DL5180-2003水电枢纽工程等级划分及设计安全标准[S].北京:中国电力出版社, 2007.The state economic and trade commission of the People's Republic of China.DL5180-2003 Classification & Design Safety Standard of Hydropower Projects.Beijing:China Electric Power Press,2007.
  • 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 (2974) PDF downloads(757) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint