Ground Settlement
KLAMFLEX couplings accommodate ground settlement near underground structures using a pair of couplings and a flexible pipe section to relieve stresses and allow angulation.
Ground Settlement
KLAMFLEX couplings accommodate ground settlement near underground structures using a pair of couplings and a flexible pipe section to relieve stresses and allow angulation.
Accommodating Ground Settlement
Ground settlement, e.g. where a pipe leaves an underground structure, can be accommodated by a pair of KLAMFLEX couplings.
All pipe trenches are of necessity excavated below the invert to allow for pipe bedding. Where this bedding is to be flexible, e.g. granular fill, some settlement of the pipe will inevitably occur when it is backfilled.
Why It Matters
Ground settlement can cause pipe movement and stress. A pair of KLAMFLEX couplings allows the pipe to angulate and accommodate settlement, helping to relieve these stresses.
Coupling Installation
To relieve pipe stresses, coupling A should be installed as close to the structure as possible. Coupling B permits pipe C to angulate, taking up settlement Y.
The length of pipe C is determined as in the below diagram, though its structural strength in bending must be considered.
