承压含水层井流-盖层弯曲效应的解析理论

王旭升; 陈崇希; 焦赳赳

Volume 28 Issue 5

Sep. 2003

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WANG Xu-sheng, CHEN Chong-xi, Jiu Jimmy Jiao, 2003. Theory on Coupling of Radial Flow in a Confined Aquifer and Bending of Confining Unit. Earth Science, 28(5): 545-550.

Citation:

WANG Xu-sheng, CHEN Chong-xi, Jiu Jimmy Jiao, 2003. Theory on Coupling of Radial Flow in a Confined Aquifer and Bending of Confining Unit. Earth Science, 28(5): 545-550.

WANG Xu-sheng, CHEN Chong-xi, Jiu Jimmy Jiao, 2003. Theory on Coupling of Radial Flow in a Confined Aquifer and Bending of Confining Unit. Earth Science, 28(5): 545-550.

Citation:

WANG Xu-sheng, CHEN Chong-xi, Jiu Jimmy Jiao, 2003. Theory on Coupling of Radial Flow in a Confined Aquifer and Bending of Confining Unit. Earth Science, 28(5): 545-550.

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Theory on Coupling of Radial Flow in a Confined Aquifer and Bending of Confining Unit

1.
National Key Laboratory of Water Resources and Hydropower Engineering, Wuhan University, Wuhan 430072, China
2.
Institute of Environmental Geoscience, China University of Geosciences, Wuhan 430074, China
3.
Department of Earth Sciences, The University of Hong Kong, Hong Kong, China

Received Date: 2003-05-18
Publish Date: 2003-09-25

Abstract

Abstract

The non-steady radial flow surrounding a pumping well in a fully confined or leaky confined aquifer will induce the bending of confining unit, and then the radial flow patterns are affected by the bending effect through reducing of total stress.However, in conventional theory of groundwater flow, this interaction was omitted. In this study, the elastic plate theory was introduced to establish the analytical models of coupling of radial flow in a confined aquifer and bending of the confining unit, and meanwhile both of non-leaky and leaky conditions were considered as well as the compressibility of skeleton and water. It was indicated by the analytical solutions of the new theory that Theis equation underestimated the drawdown for fully confined aquifers. For leaky confined aquifers, the drawdown simulated by Hantush-Jacob equation was less than that evaluated by the new theory which considered the bending effect of confining unit. The relative errors would be remarkable in the beginning of pumping and/or near the pumping well.
- radial flow,
- bending,
- confined aquifer,
- leaky,
- analytical solution

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References(12)

References

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