I seem to remember reading that one of the more common methods to deal with phalanxes in early years was to actually grab the pikes and try to pull them off the enemy.

It seems hard to imagine the V shape shield charge would work. Surely any skilled phalnx would not be a static wall formation, but a well drilled group of men thrusting their spears repeatedly at the enemy. With the added reach they could attack from many and different angles, they could also co-ordinate thrusts to prevent any individuals winning through. In essence it would be 6+ phalangites vs 1 enemy warrior at the front