长江科学院院报 ›› 2019, Vol. 36 ›› Issue (1): 123-126.DOI: 10.11988/ckyyb.20170712

• 岩土工程 • 上一篇    下一篇

基于灰色关联法的涉水边坡稳定性影响因素敏感性分析

聂兵其, 汤明高, 邵山, 马新建, 李云杰, 杨何   

  1. 成都理工大学 地质灾害防治与地质环境保护国家重点实验室,成都 610059
  • 收稿日期:2017-06-22 出版日期:2019-01-01 发布日期:2019-01-17
  • 通讯作者: 汤明高(1978-),男,湖北仙桃人,教授,博士,主要从事工程地质和岩土工程的教学与科研工作。E-mail:tomyr2008@163.com
  • 作者简介:聂兵其(1992-),男,河北涉县人,硕士研究生,主要从事地质灾害评价及预测研究。E-mail:773247052@qq.com
  • 基金资助:
    三峡后续地质灾害防治课题(0001212015CC60005);国家重点实验室自主课题基金(SKLGP2015Z008)

Sensibility Analysis of Influencing Factors of Reservoir Slope Stability Based on Grey Correlation

NIE Bing-qi,TANG Ming-gao,SHAO Shan,MA Xin-jian,LI Yun-jie,YANG He   

  1. State Key Laboratory of Geohazard Prevention and Geoenvironment Protection,Chengdu University of Technology, Chengdu 610059, China
  • Received:2017-06-22 Online:2019-01-01 Published:2019-01-17

摘要: 影响边坡稳定性的因素众多,故有必要对该影响因素进行敏感性分析,而以往研究针对库水边坡敏感性研究较少。基于GeoStudio软件的极限平衡分析法,对影响水库边坡变形6个主要因素敏感性大小采用正交设计和灰色关联法进行研究。分析结果表明,各种因素的敏感性排序为:内摩擦角>黏聚力>渗透系数>下降速率>坡度>库水下降幅度。正交设计和灰色关联法的结合不仅可以考虑各影响因素之间的相互作用,较大程度地消除试验产生的误差,而且可以克服传统数理统计分析的缺点,具有高效性。研究结果为库区涉水边坡支护及防治工作提供一定的参考和借鉴。

关键词: 涉水边坡, 敏感性分析, 灰色关联法, 正交设计, 极限平衡分析

Abstract: Orthogonal experiment and grey correlation analysis method are coupled to make sensitivity analysis on six main influence factor for a homogeneous slope in reservoir area using GeoStudio-based limit equilibrium analysis method. The sensitivity of slope stability factors ranks in the order of internal friction angle, cohesive force, permeability coefficient, rate of reservoir water level drawdown, slope angle, and degree of declining in reservoir water level. The combination of orthogonal design and grey correlation method could, to a large extent, eliminate the errors generated by tests by taking the interactions among factors into consideration, and could also overcome the shortcomings of traditional mathematical statistics analysis. The results offer reference for the support of reservoir slope and prevention works.

Key words: reservoir slope, sensitivity analysis, grey correlation analysis method, orthogonal design, limit equilibrium analysis

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