Swelling behavior is defined either as the increase in volume of unsaturated rocks containing smectite group minerals due to time-dependent water absorption or the excess stress occurring if the volume increase is obstructed. Since swelling behavior is a small process the associated problems are later realized and thus, causes the precautions taken to be either temporary or inadequate. This paper deals with obtaining the swelling parameters which can be used in solving the problems in Bursa Lignite Open Pit Mine and quantitative determination of uniaxial swelling behavior.