›› 2006, Vol. 27 ›› Issue (S1): 1149-1152.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Applying uniform hydraulic gradient and variable hydraulic gradient principle of groundwater to calculate permeability coefficient

ZHANG Wen-hua   

  1. Geology and Subgrade Branch Xinjiang Railway Survey and Design Institute, Urumqi 830011, China
  • Received:2006-06-25 Published:2006-12-15

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Abstract: By using the uniform hydraulic gradient and variable hydraulic gradient principle, a computational formula of permeability coefficient of the single well(drillhole) steady flow confined fully penetrating well is derived, in which the effect of noneffective drawdown on permeability coefficient is considered, and the most of water level recovery data in computational process are used, while some interference factors effect is excluded in the water level recovery. Therefore, the parameter calculation will still approximate to the fact.

Key words: permeability coefficient, uniform hydraulic gradient, variable hydraulic gradient, noneffective drawdown, cited radius of recharge, coefficient of variable hydraulic gradient

CLC Number: 

  • O 319.56
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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