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HomeNewsFailuresJohannasburg Sinkhole Opens after Tunnel Collapse

Johannasburg Sinkhole Opens after Tunnel Collapse

July 10, 2008 rockman Failures Comments Off on Johannasburg Sinkhole Opens after Tunnel Collapse

 

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Sinkhole in a Beijing Street on April 26, 2011 - possibly resulting from tunneling ground loss from Beijing subway construction
Failures

Tunneling ground loss sinkhole opens in Beijing street, swallows truck

June 6, 2011 rockman Failures Comments Off on Tunneling ground loss sinkhole opens in Beijing street, swallows truck

On April 26, a sinkhole opened up in a busy Beijing street in China’s capital city, swallowing up a truck. According to news reports, the driver and passenger jumped out of the vehicle before it […]

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Sinkhole in Karst Topography being used as a drainage structure
Journal Article Reviews

Mitigation of Karst and Sinkholes for New Hospital Structure

November 24, 2008 rockman Journal Article Reviews Comments Off on Mitigation of Karst and Sinkholes for New Hospital Structure

Sinkhole in Karst Topography being used as a drainage structureThe site for the new Harrison County Hospital, approximately 25-miles west of Louisville, Kentucky had 15 sinkholes formed by limestone dissolution, a geomorphologic process referred to as Karst topography.  There were a number of geotechnical engineering and geological engineering challenges associated with the characterization, excavation, backfilling, foundation engineering and other mitigation measures as described by Peggy Hagerty Duffy, P.E. in her article entitled “Karst and Complications” in the August 2008 issue of Civil Engineering Magazine (Duffy, 2008b).

Mitigation measures for the sinkholes included use of graded filters with geotextiles, careful inspection of rock socket foundations along with pilot holes and careful geotechnical inspection throughout the construction process. One particularly interesting aspect of the project is that several of the sinkholes were used as drainage facilities to receive surface water runoff. Read on for a summary of this interesting article. (Photo of sinkhole in Karst Topography being used as a drainage feature, from Duffy (2008b), Civil Engineering Magazine)

[…]

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Geologic Hazards

NFL’s Titans eye $250k Compaction Grouting fix for sinkhole at LP Stadium

August 1, 2010 rockman Geologic Hazards Comments Off on NFL’s Titans eye $250k Compaction Grouting fix for sinkhole at LP Stadium

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. […]

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