Hillsborough County Florida is using a mix of expanding polyurethane foam and conventional cement grout as a more cost effective means of filling sinkholes. Officials say the mix uses 30 to 40% less grout adding up to a 30% cost savings. The article in the Tampa Tribune did not indicate the contractor or product name that they are using but apparently several agencies in California and other states are using the same material. Story via ASCE SmartBrief.
Geologic Hazards
5 of 8 Corvettes Rescued from Sinkhole
Here is an update on the Corvette Museum Sinkhole. A contractor has been busy trying to extract some of the priceless Corvettes from the sinkhole that opened up under the museum floor. If you missed […]
Press Releases
Challenging WV Transmission Station Pipeline Job on 58-Degree Slope Uses TerraThane by U.S. Company, NCFI Polyurethanes
MOUNT AIRY, NC—A recent pipeline job at Dominion Resource’s extraction/fractionation plant in Pine Grove, WV presented some pretty hairy challenges. First the pipeline was to be laid on a 58-degree hillside. Trucks, excavators, and other equipment had to be wenched up the slope and held in place by cables attached to heavy equipment. Secondly, it was the rainy season, so erosion of the freshly turned earth was a major concern. [Editor] Click through for the rest of the press release. [/Editor]
Failures
Video of Car Swallowed by Sinkhole Related to Tunneling in Cairo, Egypt
On September 3, a sinkhole opened up on a downtown Cairo street, swallowing the car pictured here. According to the description accompanying the video uploaded to YouTube by TheDailyNewsEgypt, the sinkhole was related to tunneling activities for the Cairo Metro line that is currently under construction. Click through for the video. […]