A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Experimental Investigation of Non-Darcy Flow in Sandstone
Abstract A study was conducted to investigate non-Darcy flow for sandstone using an experimental system designed and constructed by the research group. Non-Darcy flow was found to exist for both the pre-peak and post-peak strains; post-peak flow behavior showed a higher level of non-Darcy flow. In addition, the post peak permeability turned out to be about 2–3 times that of the pre-peak permeability. This sudden change in permeability that occurs when sedimentary rock masses around underground excavations develop new fractures may lead to water inrush in coal mines. All three non-Darcy permeability parameters showed significant changes between the pre-peak and post peak strains. The main reason for that is the formation of new cracks around and after the peak stress. Relations are developed among the three non-Darcy permeability parameters.
Experimental Investigation of Non-Darcy Flow in Sandstone
Abstract A study was conducted to investigate non-Darcy flow for sandstone using an experimental system designed and constructed by the research group. Non-Darcy flow was found to exist for both the pre-peak and post-peak strains; post-peak flow behavior showed a higher level of non-Darcy flow. In addition, the post peak permeability turned out to be about 2–3 times that of the pre-peak permeability. This sudden change in permeability that occurs when sedimentary rock masses around underground excavations develop new fractures may lead to water inrush in coal mines. All three non-Darcy permeability parameters showed significant changes between the pre-peak and post peak strains. The main reason for that is the formation of new cracks around and after the peak stress. Relations are developed among the three non-Darcy permeability parameters.
Experimental Investigation of Non-Darcy Flow in Sandstone
Ni, Xiaoyan (author) / Kulatilake, Pinnaduwa H. S. W. (author) / Chen, Zhanqing (author) / Gong, Peng (author) / Kong, Hailing (author)
2016
Article (Journal)
English
Experimental Investigation of Non-Darcy Flow in Sandstone
| Online Contents | 2016
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| British Library Online Contents | 2016
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