Hayward Baker will be the geotechnical contractor for the compaction grouting. The article draws a HORRIBLE comparison between compaction grouting and the ‘top kill’ that BP tried to stop the oil leak in the gulf. Honestly, sometimes reading what the media writes about engineering is a little scary. I’m sure Hayward Baker is thrilled to have their name mixed in there with the most hated company on the planet right now! [Source: Nashville Business Journal via AGC SmartBrief]
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Geologic Hazards
Hutchinson, Kansas Sinkhole – Site of Former Salt Mine
The new owner of land that used to be owned and mined by the Carey Salt Company is in talks to buy out 32 homes in the area because of subsidence and sinkholes. They have […]
Geologic Hazards
Maitland Sinkhole Stabilization Project – Central Florida
A massive sinkhole more than 300-ft in diameter and with depths to bedrock of up to 350-ft is located under a future I-4 traffic interchange in an Orlando suburb. A massive $9 million stabilization project is underway to prepare the site for the eventual TI construction. The size of the Maitland Sinkhole is on par with the largest sinkholes to form in central Florida in recent times. There is not a void present, instead it is infilled with a compressible sand deposit. (Image from FDOT)
The mitigation method includes drilling over 300 grout injection holes, and performing grouting operations to infill cracks in the limestone bedrock. Then in the same holes, compaction grouting will be used as a method of ground improvement to densify the sand in place. Once the grouting is complete, the site will be surcharged to compress any remaining weak layers. Click through for a subsurface profile and location map. Via ASCE SmartBrief.