【摘 要】
：
The movement of water flow in unsaturated fractured rock was investigated with the sandstone sample through experimental research and numerical simulation.The e
【机 构】
：
School of Earth Science and Engineering,State Key Laboratory of Hydrology-Water Resources and Hydrau
【基金项目】
：
the Special Funds to Finance Operating Expenses For Basic Scientific Research of Central Colleges;Project supported by the Program for Changjiang Scholars and Innovative Research Team in Universities;
论文部分内容阅读
The movement of water flow in unsaturated fractured rock was investigated with the sandstone sample through experimental research and numerical simulation.The experimental results show that the arriving time of wetting front is delayed by the fracture,resulting in the increase of water saturation in the domain on the upstream side of the fracture,which will locally enhance water flow through the matrix.The numerical simulation with the finite volume method captures effectively these characteristics.The comparison between simulated and observed travel time and arriving time of wetting front shows that their difference are very small and the simulated results are in agreement with the observed results,which implies calibrated parameters are reliable and effective.Then according to the calibrated parameters,fractured models were established to examine how the change of large fractured aperture would affect the arriving time of wetting fronts,pressure heads and water saturation on the upstream and downstream sides of fracture.
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