离散裂隙渗流方法与裂隙化渗透介质建模

王明玉; 陈劲松; 万力

Volume 27 Issue 1

Jan. 2002

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Article Navigation > Earth Science > 2002 > 27(1): 90-96

Wang Mingyu, Chen Jingsong, Wan Li, 2002. Groundwater (Fluid) Flow Modeling in Fractured Rocks via Discrete Fracture Fluid Flow Approach. Earth Science, 27(1): 90-96.

Citation:

Wang Mingyu, Chen Jingsong, Wan Li, 2002. Groundwater (Fluid) Flow Modeling in Fractured Rocks via Discrete Fracture Fluid Flow Approach. Earth Science, 27(1): 90-96.

Wang Mingyu, Chen Jingsong, Wan Li, 2002. Groundwater (Fluid) Flow Modeling in Fractured Rocks via Discrete Fracture Fluid Flow Approach. Earth Science, 27(1): 90-96.

Citation:

Wang Mingyu, Chen Jingsong, Wan Li, 2002. Groundwater (Fluid) Flow Modeling in Fractured Rocks via Discrete Fracture Fluid Flow Approach. Earth Science, 27(1): 90-96.

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Groundwater (Fluid) Flow Modeling in Fractured Rocks via Discrete Fracture Fluid Flow Approach

1.
The University of Arizona, Tucson, Arizona 85721, USA
2.
Department of Water Resources and Environmental Engineering, China University of Geosciences, Beijing 100083, China

Received Date: 2001-04-23
Publish Date: 2002-01-25

Abstract

Abstract

The continuum approach in fluid flow modeling can generally be applied to porous geological media, but has limited applicability for fractured rocks. With the presence of a complex fracture network pattern and the fluid flow restricted mainly to the fractures, the porous media assumption does not adequately describe the flow behavior in the fractured rocks. A discrete fracture flow model has the capability not only in capturing inhomogeneity and anisotropy, but also in estimating representative elementary volume (REV) and determining hydraulic conductivity tensor for fractured rocks. In this paper, the following sub topics were discussed: (a) general discrete fracture fluid flow modeling for saturated fractured geologic media; (b) determinations of REV and hydraulic conductivity tensor for fractured rocks using a discrete fracture network fluid flow model; (c) investigations of fracture orientation effect on the hydraulic conductivity and REV using a discrete fracture network fluid flow model, and (d) the ways to treat major fractures vs. minor fractures in the 2D and 3D discrete fracture fluid flow models. The results from this investigation indicate that a discrete fracture flow model could be used to evaluate the hydraulic properties at different scales. In addition, the orientation of fractures plays an important role in determining the hydraulic behaviors in fractured rocks. Furthermore, various conceptual fluid flow models are presented to reflect the different flow features of both minor and major fractures identified in fractured rock masses.
- groundwater flow modeling,
- fractured rock,
- discrete fracture fluid flow approach,
- representative elementary volume,
- hydraulic conductivity tensor,
- minor fracture,
- major fracture

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References(13)

References

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