Volume 9 Issue 1
Apr.  2011
Turn off MathJax
Article Contents
NIU Fujun, LIU Yuhai, NI Wankui. 2001: EXPERIMENTAL STUDY ON DEFORMATION AND INSTABILITY OF FOUNDATION-PIT IN SOFT SOIL. JOURNAL OF ENGINEERING GEOLOGY, 9(1): 83-99.
Citation: NIU Fujun, LIU Yuhai, NI Wankui. 2001: EXPERIMENTAL STUDY ON DEFORMATION AND INSTABILITY OF FOUNDATION-PIT IN SOFT SOIL. JOURNAL OF ENGINEERING GEOLOGY, 9(1): 83-99.

EXPERIMENTAL STUDY ON DEFORMATION AND INSTABILITY OF FOUNDATION-PIT IN SOFT SOIL

Funds:

  • Received Date: 2000-06-26
  • Rev Recd Date: 2000-10-25
  • Publish Date: 2001-01-22
  • Model experiment on excavation of foundation pit in soft soil with different properties was conducted at different ground water condition. The experiment reveals that in braced or softly braced excavation of pit, the wall develops a relative large deformation before instability occurs. It also shows that the failure plane, which can be fitted with a parabola equation, is different from the usually supposed circular plane; the influence of seepage destruction of the wall on ground subsidence is much serious than that of lateral deflection of the wall. It is essential to consider the mechanical strength of soil in analyzing the base heave caused by the confined ground water, otherwise, the calculated result is unreasonable to some degree.
  • loading
  • [1] 牛富俊.深基坑变形失稳机理及周边建筑响应研究
    [D].西安工程学院博士学位论文.1998.N iu Fujun.St udy of def ormation and inst abilit y mechanisms of
    deep f oundat ion pit and response of neiboring building t o t he ex-cavat ion.Ph.D.T hesis, X i′an Inst it ut e of Engineering Science, 1998.

    [2] 黄运飞、冯静.土体变形破坏与基坑失稳
    [J].水文地质工程地质, 1997(3):34~37.Huang Yongf ei and Fen g Jing.Deformat ion and destruction of soil and destabilizat ion of f oundat ion pit.Journal of Hydrogeology and Engineering G eology, 1997, 34~37.

    [3] Ch ang-Show Fang&Cheng-Yu Chen, Earth pressure wit h sloping backfill, J urnal of Geot ech nical and G eoenvironm ent a E ngin eering, 1997, 123(5):250~959.

    [4] 魏琅.高层建筑基坑边坡支护的主要问题与对策
    [J].工程地质学报, 1994, 2(2):84~88.W ei Lang.M ain problem s on support ing of deep pits slope for
    t all building and t heir solution.Journal of Engineering G eology, 1994, 2(2):84~88.

  • 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 (3314) PDF downloads(1002) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint