›› 2010, Vol. 31 ›› Issue (5): 1604-1608.

• Numerical Analysis • Previous Articles     Next Articles

3D finite element analysis of reservoir bank landslide based on strength reduction method

DENG Hua-feng 1, 2, LI Jian-lin1, WANG Le-hua1, ZHOU Ji-fang3, DENG Cheng-jin1   

  1. 1. China Three Gorges University Key Laboratory of Geological Hazards on Three Gorges Reservoir Area, Ministry of Education, Yichang Hubei, 443002, China; 2. College of Civil & Architecture Engineering, China Three Gorges University, Yichang Hubei, 443002, China; 3. Er'tan Hydropower Development Company Ltd., Chengdu 610021, China
  • Received:2008-10-28 Online:2010-05-10 Published:2010-05-24

PDF (Chinese)

2860

Abstract:

The genetic mechanism and evolvement process of the reservoir bank landslide were discussed detailedly based on engineering exploration and analyzing environmental geological conditions. And some main factors effecting stability of the landslide were analyzed emphatically. Through building a 3D FEM model of landslide, the stable situations of the landslide under various situations were considered based on the strength reduction method. The result shows that the landslide is steady under the natural situation. The front edge of the landslide will be drowned out when the reservoir retains water normally; the safety factor reduces and can’t meet the requirements of norms. The landslide tends to be more dangerous under rainfall infiltration and rapid drawdown of the reservoir water level. And the landslide will be instable when water storage situation and earthquake situation were considered at the same time. According to the preceding analysis, the treatment measures of cutting slope and reducing load were presented. The landslide is steady under various conditions after being controlled. The relevant conclusions and methods proposed take a good effect in landslide treatment.

Key words: reservoir bank landslide, strength reduction method, genetic mechanism, 3D analysis

CLC Number: 

  • P 642.22
[1] LI Jian, CHEN Shan-xiong, YU Fei, JIANG Ling-fa, DAI Zhang-jun. Discussion on mechanism of reinforcing high and steep slope with prestressed anchor cable [J]. Rock and Soil Mechanics, 2020, 41(2): 707-713.
[2] ZHU Yan-peng, YANG Xiao-yu, MA Xiao-rui, YANG Xiao-hui, YE Shuai-hua, . Several questions of double reduction method for slope stability analysis [J]. , 2018, 39(1): 331-338.
[3] LIU Lu-lu, SONG Liang, JIAO Yu-yong, WANG Hao, ZHANG Xiu-li, XIE Bi-ting, . Study of stability of Huangtupo riverside slumping mass #1 under reservoir water level fluctuations [J]. , 2017, 38(S1): 359-366.
[4] CHENG Heng, FU Zhi-hao, ZHANG Guo-xin, YANG Bo, JIANG Chen-fang，. Reinforcement effect analysis and global safety evaluation of Wugachong arch dam and its abutment [J]. , 2017, 38(S1): 374-380.
[5] NIE Zhi-bao, ZHENG Hong, ZHANG Tan. Determination of slope critical slip surfaces using strength reduction method and wavelet transform [J]. , 2017, 38(6): 1827-1831.
[6] YAN Chao, LIU Song-yu, DENG Yong-feng, . A method of evaluating integral stability of rigid pile composite foundation based on strength reduction method [J]. , 2017, 38(3): 875-882.
[7] XU Sheng-cai, ZHANG Xin-gui, MA Fu-rong, CHEN Zi-xing, . Analysis of model test and failure of slope reinforced by soil-cement pile [J]. , 2017, 38(11): 3187-3196.
[8] ZHANG Yu-cheng , YANG Guang-hua , ZHANG You-xiang , ZHONG ZHi-hui , HU Hai-ying,. Influence of mechanical properties of sliding zone and water level changes on ancient landslide stability and its reinforcement measures [J]. , 2016, 37(S2): 43-52.
[9] HAN Long-qiang, WU Shun-chuan, LI Zhi-peng, . Study of non-proportional strength reduction method based on Hoek-Brown failure criterion [J]. , 2016, 37(S2): 690-696.
[10] WANG Shuang, LI Xiao-chun, SHI Lu, LIU Zhao-sheng,. Material point strength reduction method and its application to slope engineering [J]. , 2016, 37(9): 2672-2678.
[11] ZHOU Yang-yi, FENG Xia-ting, XU Ding-ping, HE Ming-wu，. A simplified analysis method of block stability in large underground powerhouse [J]. , 2016, 37(8): 2391-2398.
[12] YUAN Wei, LI Xiao-chun, WANG Wei, BAI Bing, WANG Qi-zhi, CHEN Xiang-jun,. Study on strength reduction method based on double reduction parameters [J]. , 2016, 37(8): 2222-2230.
[13] YUAN Wei，HAO Xiao-tian，LI Xiao-chun，BAI Bing，WANG Wei，CHEN Xiang-jun，JI Xiao-lei. A strength reduction method considering reduction of strength parameters coordinating with deformation parameters [J]. , 2016, 37(7): 2096-2100.
[14] YUAN Wei, HU Ye-jiang, LI Xiao-chun, BAI Bing, WANG Wei, JI Xiao-lei，. An approach to determining critical slip surface based on displacement field analysis [J]. , 2016, 37(6): 1791-1798.
[15] YAN Chao ，LIU Song-yu ，JI Xiao-lei，. Research on a secondary sliding surface analysis approach based on strength reduction method [J]. , 2016, 37(4): 935-942.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] ZHANG Bo，LI Shu-cai，YANG Xue-ying，SUN Guo-fu，GE Yan-hui. Study of three dimensional viscoelastic medium artificial boundary[J]. , 2009, 30(11): 3469 -3475 .
[2] LI Ying-yong，ZHANG Ding-li，ZHANG Hong-bo，SONG Xiu-guang. Research on failure mechanism and effects of prestressed anchor cables for reinforcing slopes[J]. , 2010, 31(1): 144 -150 .
[3] WANG Shui-lin，WU Zhen-jun，LI Chun-guang，TANG Hua. Modeling of strain-softening and analysis of a lining for circular tunnel[J]. , 2010, 31(6): 1929 -1936 .
[4] HUANG Qiang-bing，PENG Jian-bing，DENG Ya-hong，FAN Wen. Design parameters of Xi’an metro line 2 tunnel passing through active ground fissure zones[J]. , 2010, 31(9): 2882 -2888 .
[5] WANG Li-yan，JIANG Peng-ming，LIU Han-long. Mechanism analysis of residual liquefied deformation of breakwater during earthquake[J]. , 2010, 31(11): 3556 -3562 .
[6] WANG Yi-zhong，LI Yong-quan，FU Xu-dong. Finite element calculation of NATM construction of Qiushui mountain tunnel beneath Jihe expressway[J]. , 2011, 32(1): 125 -131 .
[7] PANG Wei，YE Chao-liang，YANG Guang-qing，DING Jun-xia. Study of feasibility of calium carbide dust improved inshore area saline soil for highway subgrade[J]. , 2009, 30(4): 1068 -1072 .
[8] LIN Zhan-ju , NIU Fu-jun , LIU Hua , LU Jia-hao. Influences of freezing-thawing cycles on physico-mechanical properties of rocks of embankment revetments in permafrost regions[J]. , 2011, 32(5): 1369 -1376 .
[9] ZHAO Hong-bao , CHEN Lun-jian. Experimental study of thermal expansion property of limestone[J]. , 2011, 32(6): 1725 -1730 .
[10] DING Jian-wen, HONG Zhen-shun, LIU Song-yu. Microstructure study of flow-solidified soil of dredged clays by mercury intrusion porosimetry[J]. , 2011, 32(12): 3591 -3596 .
Copyright © Rock and Soil Mechanics, All Rights Reserved.
Tel: 027-87198484, 87199252, 87199253, 87198752　E-mail: ytlx@whrsm.ac.cn
Powered by Beijing Magtech Co. Ltd