Case Studies

Foundation Repair Services Case Studies: Cornerstone-Grouting and underpinning to rehabilitate building.

Tuesday, April 1st, 2014 by Robert Brown

Challenge

We received a call from a client about a vacant unit that had settlement.  When we went out to look at the unit, we found out that it had actually sunk 24’’ in the center of the floor.  The client had been monitoring this movement and in the past 3 months it had sunk 6’’.

The previous tenant had power washed the floors every night for years to clean up, causing a significant amount of water to be underneath the structure.  It was also discovered that the unit had been built over a wash, further complicating the soils underneath.

Solution

Arizona Foundation Solutions used a repair method that consisted of underpinning the exterior and interior load bearing walls using a combination of helical and hydraulically driven piles to place the structure on a deep foundation. The interior slab and soils were compaction grouted to densify the soils and raise the interior slab to an engineered specification.

Not only did Arizona Foundation Solutions stop the continuing settlement, but through our grouting processes, brought the floor slab back to within a half inch of its target elevation.

About the author
Expert in foundation diagnosis and repairs. Expert witness and patent holder.

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3841 E Superior Ave
Phoenix, AZ 85040
1-602-883-3777
Arizona Foundation Solutions service area