House foundation failure 2

[smwpe]

A client has a house in Florida built 35 years ago on a cypress head. One section of the house has settled 5" with the accompanying cracks and distress in the tie beams, vertical walls and adjacent sidewalks and porch. A cypress knee has grown 12" in a flower bed at the main entrance. Piers, grouting, demolition and replacement and other remedies have been suggested by contractors. No soil analysis has been made on this structure, but a neighbor did have one and sinkholes were ruled out.The client will not report this to the insurance agent for various reasons.

The question: Anyone out there have design/construction experience in this area they would like to share/

 

[Focht3]

Yup. And with 4 inch pipe, the L/r can get downright silly in no time with even a modest void -



Please see FAQ731-376 for great suggestions on how to make the best use of Eng-Tips Fora. See faq158-922 for recommendations regarding the question, "How Do You Evaluate Fill Settlement Beneath Structures?"