 Series  Constant parameters  Variable parameters 
 1  without confinement (control values)  , 30 and 60 kPa  2  and kPa  , 1.25, 1.5 and 1.75  3  and kPa  , 1.25, 1.5 and 1.75  4  and kPa  , 1.25, 1.5 and 1.75  5  and kPa  , 1.25, 1.5 and 1.75  6  and kPa  , 1.25, 1.5 and 1.75  7  and kPa  ,1.25, 1.5 and 1.75  2  and kPa  ,1.25, 1.5 and 1.75  3  and kPa  , 1.25, 1.5 and 1.75  4  and kPa  , 1.25, 1.5 and 1.75  5  and kPa  , 1.25, 1.5 and 1.75  6  and kPa  , 1.25, 1.5 and 1.75  7  and kPa  , 1.25, 1.5 and 1.75 

