DEEP (H C)

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BY: DEEP NAYARANM. Tech. (Expl. Geosciences)

Dept.of Geology& Geophysics,IIT KGP, Kharagpur

HYDRAULIC CONDTIVITY

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Driving forces

Where;Z= elevation head [m]y =pressure head p/g [m]

h =total head [m]

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Experimental verification of darcy law

Head loss = the potential loss within the

sand cylinder

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Pore velocity or average interstitial velocity ,

Term related to `K`

Fluid dependent measure for the ability of agiven soil to transport water intrinsicPermeability, k [m2]Fluid in-dependent measure for the ability of agiven soil to transport water

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Continue

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Varriation on `K` in sand

R

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1m/day = .0012cm/sec

Roc c ass cat on ase on`K`

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Continue

H d li d ti it f

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Hydraulic conductivity ofrocks

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Horizontal hyraulic conductivity of straifiedbeds

Anisotropic reservoirs

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Continue

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Laboratory methods of fallinghead

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Auger hole tests

It is applied for shallow water tableconditions.

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where:

h hydraulic head, rradial distance from thepumping well, Taquifer transmisivity, S aquiferstorativity (storage coefficient)

Measurement of `K`of aconfined aquifer in unsteady

state conditions

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The Theis solution

h0

hydraulic head beforepumping start

h - h0 = s is the drawdown

Q discharge of the well

t time since pumping has

started

T transmisivity

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The Cooper - Jacob solution

ase s u y : y rau c

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Hindon Sub-Basin (2955' - 306' NL, and7735' - 7746' EL ) Saharanpur district ofUttar Pradesh (India)

Kolar Sub-Basin( 2240' to 2308' NL and7701' to 7729' EL) Sehore district of MadhyaPradesh

Narsinghpur District ,Jabalpur division of

Madhya PradeshGhataprabha Command (1600'08" to

1688'09" NL and 7426'43" to 7556'33" EL )

Lokapavani Command 1228' to 1232' NLand 7640' to 7645' EL Pandavapura taluk of

ase s u y : y rau cconductivity of areas in

selected states of India

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Todd,D.K., Groundwater Hydrology secondedition John wiley & sons.

Kumar, P.C. and Mittal,S. SOIL MOISTURERETENTION CHARACTERISTICS ANDHYDRAULIC CONDUCTIVITY FOR DIFFERENTAREAS IN INDIA IN SELECTED STATESNational Institute of Hydrology ,Roorkee(Uttarakhand), India

www.goole.com

Refererences

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THANK YOU!