Volume 16 Issue 2
Oct.  2010
Turn off MathJax
Article Contents
QI Changqing, XU Renping, WU Jimin. 2008: RELIABILITY ANALYSIS OF ROCK MASS DEFORMATION IN TUNNEL EXCAVATION BASED ON GENETIC ALGORITHM. JOURNAL OF ENGINEERING GEOLOGY, 16(2): 258-262.
Citation: QI Changqing, XU Renping, WU Jimin. 2008: RELIABILITY ANALYSIS OF ROCK MASS DEFORMATION IN TUNNEL EXCAVATION BASED ON GENETIC ALGORITHM. JOURNAL OF ENGINEERING GEOLOGY, 16(2): 258-262.

RELIABILITY ANALYSIS OF ROCK MASS DEFORMATION IN TUNNEL EXCAVATION BASED ON GENETIC ALGORITHM

  • Received Date: 2007-08-13
  • Rev Recd Date: 2007-12-03
  • Publish Date: 2008-04-30
  • The initial stress state and stability of the surrounding rock mass will change during tunnel excavation. The rock mass even may collapse due to over-size displacement. A new method is presented in this paper for reliability analysis of tunnel excavation. The genetic algorithm is put forward to calculate the reliability index and failure probability for the complexity of the model. The proposed method is applied to reliability analyzing of a practical expressway tunnel. The result shows that the potential break areas appear at vault and spandrel of the tunnel. The reliability indexes and failure probabilities of the vault settlement and spandrel convergent reflect that the reliability of the unsupported construction can't meet the requirement of the specification. The tunnel must be supported in time.
  • loading
  • [1] 李树忱,李术才,徐帮树.隧道围岩稳定性分析的最小安全系数法
    [J].岩土力学, 2007, 28 (3):549~553.
    Li Shuchen, Li Shucai, Xu Bangshu. Minimum safety factor method for stability analysis of surrounding rockmass of tunnel. Rock and Soil Mechanics, 2007, 28 (3):549-553.


    [2] Hasofer A M, Lind N. An exact and invariant first-order reliability format
    [J]. Journal of engineering mechanics, ASCE, 1974, 100 (1):111~121.


    [3] Low B K. Efficient reliability evaluation using spreadsheet
    [J]. Journal of engineering mechanics, 1997, 123 (7):749~752.


    [4] Hoek, E., Brown, E T.. Trends in relationship between measured in-situ stresses and depth
    [J]. International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts,1978, 15 ,211~215.


    [5] Hoek, E.. Numerical modelling for shallow tunnels in weakrocks. http://www.rocscience.com, 2003.


    [6] 中华人民共和国行业标准编写组.公路隧道施工技术规范(JTJ042-94)
    [S].北京:人民交通出版社,1994.
    The Professional Standards Compilation Group of People's Republic of China. JTJ042-94 Technical specifications for construction of highway tunnel (JTJ042-94). Beijing: China Communications Press,1994.


    [7] 中华人民共和国国家标准编写组.建筑结构可靠度设计统一标准(GB50068-2001)
    [S].北京:中国建筑工业出版社, 2001.
    The National Standards Compilation Group of People's Republic of China. Unified standard for reliability design of building structures (GB50068-2001). Beijing: China Architecture and Building Press, 2001.


    [8] 卢书强,许模,巨能攀.澜沧江某电站左岸地下洞室群围岩稳定性的FLAC3D分析
    [J].工程地质学报,2006, 14 (3):351~355.
    Lu Shuqiang, Xu Mo, Ju Nengpan. Numerical analysis with FLAC3D on rock mass stability surrounding cavern group in the left bank slope of a hydropower station on Lancangjiang river. Jouranl of Engineering Geology, 2006, 14 (3):351~355

  • 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 (5369) PDF downloads(142938) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint