| 层状土重力释水机制初步探讨 |
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| 引用本文： | 张人权
,高云福
,王佩仪.层状土重力释水机制初步探讨[J].地球科学,1985(1). |
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| 作者姓名： | 张人权 高云福 王佩仪 |
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| 作者单位： | Wuhan College of Geology，Wuhan 430074 |
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| 摘 要： | 地下水位下降时,土体中粗细不等的孔隙通道释水不同步而在细孔隙中形成悬挂毛细水,这是重力疏干释水减量与滞后的一个重要原因。文中用模型解释了孔隙通道大小愈悬殊,水位降速愈大,均质土给水度愈小,释水愈滞后的原因。分析了层状土中给水度与水位变动带及毛细水带的岩性,厚度及其配置情况,以及水位下降速率的关系。
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| 关 键 词： | 毛细水 悬挂毛细水 层状土 释水 给水度 |
A PRELIMINARY STUDY ON THE MECHANISM OF WATER RELEASE FROM SATURATED LAYERED SOILS AEG Pei-yi |
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| Zhang Ren-quan GAO Yun-fu,WANG Pei-Yi.A PRELIMINARY STUDY ON THE MECHANISM OF WATER RELEASE FROM SATURATED LAYERED SOILS AEG Pei-yi[J].Earth Science-Journal of China University of Geosciences,1985(1). |
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| Authors: | Zhang Ren-quan GAO Yun-fu WANG Pei-Yi |
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| Abstract: | It is the main cause for the variation of operational specific yield in response to groundwater level decline with different rate, that the. suspended capillary water, resulting from water release ahead of time from big chamber of the smaller pore-channel, makes the water more uncompletely and lag in time drained from saturated soils. For layered soils, the uncompletion and time lag of water drained from saturated soils are more considerable than isotropic soils, and they are related to the following factors. ( 1 ) grain size and sorting, structure of soil located in water lever fluctuant zone and capillary fringe, ( 2 ) the rate of groundwater declining. |
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| Keywords: | Capillary Water Suspended Capillary Water Layered Soils Water Release Specific Yield |
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