Burst Lining
The work takes place with minimum disruption and only a small access pit. Burst Lining can be done staticly, dynamicly or by using a caliber burst liner.
With each method the chosen canal will be demolished from inside. The new pipe is inserted at the same time the rubble is pressed out.
The advantage over lining is that the circumference of the canal is not reduced but can even be enlarged.
The disadvantage over lining is that no connection can be made without digging an access pit, also if the existing canal is made out of GRP or steel this method may not be used.