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    Experimental Investigation of Water Flow through Vesicular Fractures in Volcanic Rock

    Source: International Journal of Geomechanics:;2020:;Volume ( 020 ):;issue: 010
    Author:
    Xiaoming Liu
    ,
    Benliang Yang
    ,
    Lin-Shuang Zhao
    ,
    Wan-Huan Zhou
    DOI: 10.1061/(ASCE)GM.1943-5622.0001815
    Publisher: ASCE
    Abstract: The vesicular structure of volcanic rocks may disrupt the fluid flow in fractures and make the mechanism of fracture flow more complicated. This study evaluated the characteristics of fracture flow associated with vesicular structure. To quantify the vesicular structure in the fracture surface, different arrangements and sizes of drilled holes were designed and manufactured in artificial single fracture samples and three associated factors of area ratio, depth, and diameter of drilled holes. A series of laboratory tests was conducted with different vesicular structure and fracture aperture. A nondimensional parameter, λ, was introduced to reveal the vesicular structure and the relationship between λ and the Reynolds number was established. The test results illustrate that the Reynolds number is sensitive to the vesicular structure in fracture surface. The vesicular structure could enhance the fracture flow rate when the flow rate is relatively small and vice versa. However, the fracture flow has no obvious change when varying each influencing factor related to vesicular structure separately. A new formula was obtained to estimate the fracture flow rate considering vesicular structure and the input variables contains fracture aperture and hydraulic gradient. The proposed formula was proven to be reasonable by comparing the measured data from the single fracture tests of real volcanic basalt samples.
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      Experimental Investigation of Water Flow through Vesicular Fractures in Volcanic Rock

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4268804
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    • International Journal of Geomechanics

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    contributor authorXiaoming Liu
    contributor authorBenliang Yang
    contributor authorLin-Shuang Zhao
    contributor authorWan-Huan Zhou
    date accessioned2022-01-30T21:46:08Z
    date available2022-01-30T21:46:08Z
    date issued10/1/2020 12:00:00 AM
    identifier other%28ASCE%29GM.1943-5622.0001815.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4268804
    description abstractThe vesicular structure of volcanic rocks may disrupt the fluid flow in fractures and make the mechanism of fracture flow more complicated. This study evaluated the characteristics of fracture flow associated with vesicular structure. To quantify the vesicular structure in the fracture surface, different arrangements and sizes of drilled holes were designed and manufactured in artificial single fracture samples and three associated factors of area ratio, depth, and diameter of drilled holes. A series of laboratory tests was conducted with different vesicular structure and fracture aperture. A nondimensional parameter, λ, was introduced to reveal the vesicular structure and the relationship between λ and the Reynolds number was established. The test results illustrate that the Reynolds number is sensitive to the vesicular structure in fracture surface. The vesicular structure could enhance the fracture flow rate when the flow rate is relatively small and vice versa. However, the fracture flow has no obvious change when varying each influencing factor related to vesicular structure separately. A new formula was obtained to estimate the fracture flow rate considering vesicular structure and the input variables contains fracture aperture and hydraulic gradient. The proposed formula was proven to be reasonable by comparing the measured data from the single fracture tests of real volcanic basalt samples.
    publisherASCE
    titleExperimental Investigation of Water Flow through Vesicular Fractures in Volcanic Rock
    typeJournal Paper
    journal volume20
    journal issue10
    journal titleInternational Journal of Geomechanics
    identifier doi10.1061/(ASCE)GM.1943-5622.0001815
    page10
    treeInternational Journal of Geomechanics:;2020:;Volume ( 020 ):;issue: 010
    contenttypeFulltext
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