长江科学院院报 ›› 2008, Vol. 25 ›› Issue (2): 46-50.

• 岩土工程 • 上一篇    下一篇

某裂隙岩质边坡渗透张量的确定及应用

 汪旭涛, 陈新国, 王亮   

  • 出版日期:2008-04-01 发布日期:2012-03-05

Estimation and Application of Permeability Tensor ofSome Fractured Rock Slope

 WANG  Xu-Tao, CHEN  Xin-Guo, WANG  Liang   

  • Online:2008-04-01 Published:2012-03-05

摘要: 针对裂隙岩质边坡渗透参数选取的问题,综合考虑并分析了单孔压水试验和裂隙样本法取得的渗透系数,提出了用单孔压水试验修正裂隙样本法来确定裂隙岩体渗透张量的方法,获得了既能较好反映裂隙岩体渗透特性的各向异性又能消除压水试验尺寸效应影响的修正渗透张量。将这种确定渗透张量的方法应用于河南某路堑岩质边坡渗流场的模拟计算中,取得了较好的结果。

关键词: 裂隙岩体, 渗透张量, 渗流, 裂隙网络

Abstract: For selecting the practically reasonable seepage parameter of fractured rock slope, this paper analyses the permeability coefficients obtained from the pumpin test and fissure sample measuring method, and proposes to use the result of single hole pumpin test to modify the tensor obtained by fissure sample measurement method. The result indicates that this method can better depict the anisotropism of permeability characteristics of fractured rock mass and the modified permeability tensor can eliminate the? nonpenetrability of fissures and fills and the size effect of the pumpin test. The proposed method was then used in the simulation calculation of seepage field of rock slope of some road in Henan Province.