The critical hydraulic gradient ic in terms of specific gravity G and voids ratio e is given by ______

The critical hydraulic gradient ic in terms of specific gravity G and

1.	The critical hydraulic gradient ic in terms of specific gravity G and voids ratio e is given by ______
A.	Ge
B.	G/e
C.	( frac{G-1}{1+e} )
D.	( frac{G+1}{1-e} )
Answer» D. ( frac{G+1}{1-e} )

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