In a desperate situation you might consider having it hard-wired i.e. dismantle laptop - cut free socket from adapter lead - solder plus and minus wires to baseboard - tie cable - reassemble. And have it fixed properly when you eventually return. Any half decent repair technician with a soldering iron should be able to make this "repair".
This has never happened to any of my laptops - I think you might be the cause of the problem - small plug/sockets do not like to be knocked about. They are not breaking of their own accord.
Tight coiling of adapter leads can cause the inner conductors to break over time and cause similar problems (and is reamarkably common) - take care how you wind the leads.
Bon voyage...
Peccavi
April 2010