Abstract:
The  evolution of water  table  due  to  recharge  from a strip  source  has  been  analysed. The  analysis  has  been extended  to  find  the  evolution of water  table  due  to  seepage from  two parallel  canals. It  has  been  found  that  for  two identical  canals  the points  of maximum height  of water  table start moving  towards  each  other  from  the  centres  of  the  canals and  stop  at  a  distance  less than (B/2 t H) from the centres of the canals,  B  being  the  width  of  the  canals  at  the water  level  and H  the maximum  depth  of water  in  the  canals.   It  is  observed that  for  two  identical  parallel  canals  the water  table  in  the region  between  the  canals  takes  the  shape  of  a plateau with lapse  of  time. The  maximum  rise  of water  table  in  the region between  the  canals  has  been predicted  for various  sizes and  spacings  of  canals. It  is  found  that  for  two  identical parallel  canal  system,  the  interference  of  the  canals  is  not significant  up to  a  time  factor 0. 045  if  their  centre  to  centre spacing  is  more  than  sixteen  times  the width  of  the  canal.