In-situ hydrogeological investigation and associated numerical modeling: An example of Heshe well site
Journal
4th ISRM Young Scholars Symposium on Rock Mechanics, YSS 2017
Journal Volume
2017-May
Pages
59-63
Date Issued
2017
Author(s)
Abstract
Heshe is an experimental well site that was established for hydrogeological characterization related research and technology development. The spatial distribution of fractures near the site was characterized through results of outcrop investigations and in-situ hydrogeological tests. The hydraulic conductivity of dominant fracture sets are determined and the hydraulic conductivity tensor is obtained accordingly. Based on the results of fracture characterization and associated parameters determined, this study adopts the software embedded in the Groundwater Modelling System (GMS) to establish a three-dimensional anisotropic numerical model to simulate flow of ground water. In comparison with cross-hole pumping test, the numerical model is utilized to investigate the effect of fractures induced anisotropy on groundwater flow. Studies show that when the principal permeability direction is rotated 10 degrees clockwise with respect to Y-axis, both horizontal and vertical flow increase at a rate of 1.52 times. ? 2017 by Korean Society for Rock Mechanics.
Subjects
Anisotropy; Computer simulation; Fracture; Groundwater; Groundwater flow; Hydraulic conductivity; Rock mechanics; Rocks; Tensors; Fracture characterization; Fractured rock mass; Groundwater modelling; Hydrogeological; Induced anisotropy; Principal permeability; Research and Technology Development; Vertical flows; Numerical models
Type
conference paper