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首页> 外文期刊>Environmental engineering and management journal >LABORATORY INVESTIGATION OF THE HYDRAULIC PERFORMANCE ON A GEOFILM WITH VARIOUS SIZED FLAWS
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LABORATORY INVESTIGATION OF THE HYDRAULIC PERFORMANCE ON A GEOFILM WITH VARIOUS SIZED FLAWS

机译：带有各种尺寸缺陷的地膜的液压性能的实验室研究

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摘要

Leakage through flaws in geofilm was examined with laboratory tests by flexible wall permeameter. Samples cracks were cut open by the sharp blade, with the results that the widths of the flaws were the same while the lengths were different. During the research, a series of laboratory permeameter tests have been performed to determine the influence of the various factors on the leakage rate of water through the flaw at the center of geofilm. The impact of various parameters examined included the following conditions (i) the influence of the confining stress on the geofilm; (ii) the hydraulic pressure applied on top of the geofilm and (iii) the length of flaw. The results indicate that the flaw size, influenced by the confining stress and the hydraulic pressure, affects the flow rate in various conditions. In addition, the flow rate decreases with the increase in confining stress. The results also show that the flow rate increases when the hydraulic pressure increases along with the length of flaw in the geofilm.
机译：通过挠性壁渗透仪通过实验室测试检查了地膜缺陷的泄漏。用锋利的刀片将样品裂缝切开，结果是裂纹的宽度相同而长度不同。在研究过程中，已进行了一系列实验室渗透仪测试，以确定各种因素对通过地膜中心缺陷造成的漏水率的影响。检查的各种参数的影响包括以下条件：（i）围压对地膜的影响； （ii）施加在土工膜顶部的液压，以及（iii）缺陷的长度。结果表明，缺陷尺寸受约束应力和液压的影响，在各种条件下都会影响流量。另外，流速随着围压的增加而降低。结果还表明，当液压随着土工膜中缺陷的长度增加而增加时，流量增加。

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  • 作者

    Zhang Guangwei; Zhang Huyuan; Yang Bo; Zhang Qing; Liu Ping;

  • 作者单位

    Lanzhou Univ, Key Lab Mech Disaster & Environm Western China, Minist Educ, Tianshui South Rd 222, Lanzhou 730000, Gansu, Peoples R China;

    Lanzhou Univ, Key Lab Mech Disaster & Environm Western China, Minist Educ, Tianshui South Rd 222, Lanzhou 730000, Gansu, Peoples R China;

    Lanzhou Univ, Key Lab Mech Disaster & Environm Western China, Minist Educ, Tianshui South Rd 222, Lanzhou 730000, Gansu, Peoples R China;

    Lanzhou Univ, Sch Resource & Environm Sci, Tianshui South Rd 222, Lanzhou 730000, Gansu, Peoples R China;

    Lanzhou Univ, Key Lab Mech Disaster & Environm Western China, Minist Educ, Tianshui South Rd 222, Lanzhou 730000, Gansu, Peoples R China;

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  • 正文语种 eng
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  • 关键词

    confining stress; flow rate; geofilm flaws; hydraulic pressure;

    机译：围压;流速;地膜缺陷;水压;

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