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New Construction Application: This is a commercial office building development designed to retain storm water run off underneath the building in a retention pond (very cost effective use of space in high dollar commercial areas). We bid helical piers against wood piles because of the cost competitiveness, speed of installation, and no prep, no clean up advantages of helical piers. We drove 76 helical piers to the correct bearing depth and placed a new construction cap on top of each shaft. The general contractor came in afterwards and built concrete blocks on top of our piers to serve as the foundation for the building. Underpinning Application: This is a residential home that settled in the back left corner due to wood/trash buried on the lot prior to building (Freckles is the fun dog in the first picture that kept us company during the course of work). Over time the buried material decomposed and the foundation settled about 2 inches. What is interesting is that the concrete blocks in the stem wall footing actually split horizontally in the middle of the block (notice the gap in the block along the scope of work, second picture from left). We had to close the gap (in the block) with 12 ton jacks (you can see them in 3rd pic from left), drive anchors to the correct bearing depth, attach brackets, fill the void (in the cracked block) with grout, then lift the foundation once the filling grout had cured. Another satisfied customer! |
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Last modified: February 02, 2007 |