Over time foundations can become weakened and this allows movement of the building.As the building settles because it does not have adequate support cracking will be noticed. Underpinning with chemical grout injection will provide renewed support for the building and cracking will stop.
Poor Ground Soil
Loose, weak ground: soil that is loose and unstable is not strong enough to support the weight of structures adequately. Easily disturbed by water runoff, nearby construction or heavy traffic. this often leads to subsidence with buildings sinking or becoming unlevel.
Common causes of subsidence in weak ground
How can weak ground be strengthened? Chemical grout injection strengthens the ground.