Volume 15 Issue 3
Apr.  2011
Turn off MathJax
Article Contents
CHEN Liwei, PENG Jianbing, SUN Ping. 2007: ANALYSES OF WALLS CRACKING FORMS OVER GROUND FISSURES. JOURNAL OF ENGINEERING GEOLOGY, 15(3): 407-411.
Citation: CHEN Liwei, PENG Jianbing, SUN Ping. 2007: ANALYSES OF WALLS CRACKING FORMS OVER GROUND FISSURES. JOURNAL OF ENGINEERING GEOLOGY, 15(3): 407-411.

ANALYSES OF WALLS CRACKING FORMS OVER GROUND FISSURES

Funds:

  • Received Date: 2006-10-10
  • Rev Recd Date: 2006-12-28
  • Publish Date: 2007-05-29
  • The author in this paper analyzed the cracking forms of walls over ground fissures with non-linear finite element method.The originated position,dip direction,dip angle and later mode of the cracks on walls are accomplished when the walls crossing over ground fissures with three-dimensional activity,and the changing law varying with different ratio of sedimentation and tensor are got.The results show that,there are two types of cracks generating on walls: the vertical cracks on top of walls located in footwall and the skew cracks at the bottom of walls just above ground fissures.The dip direction of the skew cracks is opposite to that of ground fissures.When the activity of ground fissures is mainly the tensor,the skew cracks at the bottom of walling expand upward with high angel;but when the activity is mainly the sedimentation,then the skew cracks expand upward with low angel.The walls could be broken so long as there was minute dislocation,generally 2~3 mm distance,occurred to the ground fissures.And the cracks expand quickly that several millimeters dislocation can make the cracks expand tens of centimeters,even finally breakthrough the walls.At the early developmental stage,the skew cracks are relatively flat,but with the quick expansion of cracks,the dip angles become lower.The later mode of the cracks likes a flexural arc.
  • loading
  • [1]  陈志新.地裂缝成灾机理及防御对策
    [J].西安工程学院学报,2002,24(2):17~20.Chen Zhixin.Mechanism of ground fissures and its p revention countermeasures.Journal of Xi’an Engineering University,2002,24(2):17~20.

    [2]  王景明,王春梅,刘科.地裂缝及其灾害研究的新进展
    [J].地球科学进展,2001,16(3):303~313.W ang J ingm ing,W ang Chunmei,L iu Ke.Progress in ground fissures and its hazard research
    [J].Advance in Earth Scinences,2001,16(3):303~313.

    [3]  西安地裂缝场地勘查与工程设计规程(DBJ24-6-88)
    [S],1988.Code for Xi’an ground fissures site survey and engineering design(DBJ24-6-88),1988.

    [4]  王景明,等著.地裂缝及其灾害的理论与应用
    [M].西安:陕西科学技术出版社,2000.W ang J ingm ing,et al,eds..Theory of ground fissures hazards and its app lication.Xi’an:Science and Technology Press of Shaanxi,2000.

    [5]  徐锡伟,钱瑞华,等.大同铁路分局地裂缝带的三维构造特征及其成因分析
    [J].地震地质,1994,16(4):356~364.Xu Xiwei,Q ian Ruihua,et a.lThree-dimensional structure of the ground fissure zone in the area of Datong railway bureau and its origin.Seismology and Geology,1994,16(4):356~364.

    [6]  李树德,袁仁茂.大同地裂缝灾害形成机理
    [J].北京大学学报(自然科学版),2002,38(1):104~108.L i Shude,Yuan Renmao.The formation mechanism of ground fissure in Datong city.Journal of Beijing University(Natural Science Edition),2002,38(1):104~108.

    [7]  彭建兵,等著.渭河盆地活动断裂与地质灾害
    [M].西安:西北大学出版社.1992.Peng J ian-bing,et al,eds.Active faults and geological hazards in W eihei basin.Xi’an:Northwest University Press,1992.

    [8]  阚前华,常志宇.MSc.marc工程应用实例分析与二次开发
    [M].北京:中国水利水电出版社,2006.Han Q ianhua,Chang Zhiyu.Project app lication examp le analysis of MSc.marc and its redevelopmen.tBeijing:Chinese W aterpub,2006.

    [9]  长安大学.汾渭盆地典型地区地裂缝地面沉降监测与防治研究设计
    [R],2006.Chang’an University.Research on typ ical area ground fissures and subsidence monitor and p revention in Fenwei basin,2006.

    [10]  李永善,等著.西安地裂及渭河盆地活断层研究
    [M].北京:地震出版社,1992.L i Yongshan,et al,eds.Research on ground fissures in Xi’an region and active faults in W eihe basin.Beijing:Earthquake Press,1992.

    [11]  彭建兵.中国活动构造与环境灾害研究中的若干重大问题
    [J].工程地质学报,2006,14(1):5~12.Peng J ianbing.Some important p roblem s to be addressed in reseach of active tectonics and environmental disasters in China.Journal of Engineering Geology,2006,14(1):5~12.

    [12]  李世雄,李守定,郜洪强.河北平原地裂缝分布特征及成因机制研究
    [J].工程地质学报,2006,14(2):178~183.L i Shixiong,L i Shouding,Hao Hongqiang.The distribution characters and origin mechanics of ground fissures hazard in Hebei p lain.Journal of Engineering Geology,2006,14(2):178~183.

  • 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 (3154) PDF downloads(922) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint