地球科学进展 ›› 2006, Vol. 21 ›› Issue (10): 1070 -1074. doi: 10.11867/j.issn.1001-8166.2006.10.1070

研究论文 上一篇    下一篇

藏东南公路边坡开挖模拟及稳定性分析
谷天峰 1,王家鼎 1,路 勋 2   
  1. 1. 西北大学地质系/大陆动力学国家重点实验室,陕西 西安 710069;2. 西安中交公路岩土公司,陕西 西安 710065
  • 收稿日期:2006-02-22 修回日期:2006-08-20 出版日期:2006-10-15
  • 通讯作者: 谷天峰 E-mail:tfgu@163.com
  • 基金资助:

    国家自然科学基金项目“车辆长持时振动作用下滑坡机理研究”(编号:40572157)资助.

Simulation and Analysis of Slope Excavation and Its Stability in the Highway of Southeast Tibet, China

Gu Tianfeng 1,Wang Jiading 1,Lu Xun 2   

  1. 1.Department of Geology, Northwest University/Key Laboratory of Continental Dynamics of China, Xi’an 710069, China;2. Xi’an Highway Geo-technical Engineering Co., Xi’an 710065, China
  • Received:2006-02-22 Revised:2006-08-20 Online:2006-10-15 Published:2006-10-15

以川藏公路某边坡为例,对路堑开挖进行模拟并分析了开挖前后边坡的稳定性。参照现场工程地质勘察及区域相关资料,恢复了公路修建前的原始地貌,据此建立计算模型。公路修筑的快速拉格朗日法模拟揭示了公路开挖后边坡内部应力分布规律、位移变化及边坡失稳过程。而强度折减法对开挖前后边坡的稳定性评价结果也表明路堑开挖是该边坡失稳的主要原因。

Taking a certain slope of Sichuan-Tibet Highway as an example, this study simulated the slope excavation and analyzed the stability before and after its excavation. According to engineering geology investigation on the spot and the relevant data, the original landforms before the highway's building appeared again, thereby the calculated model being developed. Fast lagrangian analysis of continua method was employed to simulate the distribution of internal stress, the change of displacement and the course of slope instability. The results of strength reduction method showed that the excavation of roadcut was the main cause of slope instability.

中图分类号: 

[1] Li Tonglu,Zhao Jianli,Li Ping. Analysis on the characteristics and stability of the No.2 landslide of 102 landslide group on Sichuan-Tibet highway[J]. Journal of Catastrophology,2003,18(4):40-45.[李同录,赵剑丽,李萍. 川藏公路102滑坡群2#滑坡发育特征及稳定性分析[J].灾害学报,2003,18(4):40-45.]

[2] Weidinger Johannes T,Wang Jiading,Ma Naixi. The earthquake-triggered rock avalanche of Cui hua, Qin ling mountains, P.R.of [LL]China—The benefits of a lake-damming prehistoric natural disaster[Z]. 2002, 93-94:207-214.

[3] Li Guangxin. Advanced Soil Mechanics[M]. Beijing:Tsinghua University Press,2004.[李广信.高等土力学[M] .北京:清华大学出版社,2004]

[4] Zhang Jiru. Finite element simulation and stability analysis on slope excavation[J]. Chinese Journal of Rock Mechanics and Engineering,2002,21(6):843-847.[张季如.边坡开挖的有限元模拟和稳定性评价[J] .岩石力学与工程学报,2002,21(6):843-847.]

[5] Zhou Cuiying, Liu Zuoqiu, Dong Liguo, et al. Large deformation FEM analysis of slopes failure [J]. Rock and Soil Mechanics,2003,24(4):644-647.[周翠英,刘祚秋,董立国,.边坡变形破坏过程的大变形有限元分析[J] .岩土力学, 2003,24(4):644-647.]

[6] Zhao Shangyi,Zheng Yingren,Shi Weimin,et al. Analysis on safety factor of slope by strength reduction FEM [J]. Chinese Journal of Geotechnical Engineering,2002,24(3):343-346.[赵尚毅,郑颖人,石伟民,.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.]

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

[8] Ma Jianxun,Lai Zhisheng,Cai Qing′e,et al. 3D FEM analysis of slope stability based on strength reduction method [J]. Chinese Journal of Rock Mechanics and Engineering,2004,23(16):2 690-2 693.[马建勋,赖志生,蔡庆娥,.基于强度折减法的边坡稳定性三维有限元分析[J] .岩石力学与工程学报,2004, 23(16):2 690-2 693.]

[9] Itasca Consulting Group Inc. FLAC-3D(Fast Lagrangian Analysis of Continua in 3 Dimensions),Version 2.00,Users Manual[R]. USA:Itasca Consulting Group Inc,1997.

[10] Kou Xiaodong, Zhou Weiyuan, Yang Ruoqiong. Stability analysison the high slopes of Three-Gorges ship lock using FLAC-3D [J]. Chinese Journal of Rock Mechanics and Engineering,2001, 20(1): 6-10.[寇晓东,周维垣,杨若琼.FLAC-3D进行三峡船闸高边坡稳定分析[J] .岩石力学与工程学报,2001, 20(1): 6-10.]

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