A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Sinkhole Repair under Highway Embankment
In March of 2002, a depression was discovered in the eastbound lane of SC22 near Conway, South Carolina. Within hours, a hole developed that revealed a void beneath the asphalt pavement approximately 8 feet deep by 10 feet wide. As a safety precaution, the SCDOT filled the void with flowable fill and patched the asphalt while further investigations were conducted. Further investigation revealed that a collapse type sinkhole had developed beneath the relatively new roadway. Geophysical testing data along with several Soil Test Borings were performed to evaluate the potential cause of the sinkhole as well as potential for future sinkhole development in the area. Although the potential for sinkhole development has always existed in the area due to the Coquina Limestone that underlies the relatively thin overburden, the absence of large-scale development has limited the occurrence of sinkholes in the area to subsidence type. As many of these sinkholes go unreported or unnoticed, this phenomenon is not well understood in the immediate area. Using the field investigation tools available, potential solutions to this sinkhole have been developed as well as precautionary measures to reduce the risk exposure as large-scale infrastructure projects continue to be constructed throughout the area.
Sinkhole Repair under Highway Embankment
In March of 2002, a depression was discovered in the eastbound lane of SC22 near Conway, South Carolina. Within hours, a hole developed that revealed a void beneath the asphalt pavement approximately 8 feet deep by 10 feet wide. As a safety precaution, the SCDOT filled the void with flowable fill and patched the asphalt while further investigations were conducted. Further investigation revealed that a collapse type sinkhole had developed beneath the relatively new roadway. Geophysical testing data along with several Soil Test Borings were performed to evaluate the potential cause of the sinkhole as well as potential for future sinkhole development in the area. Although the potential for sinkhole development has always existed in the area due to the Coquina Limestone that underlies the relatively thin overburden, the absence of large-scale development has limited the occurrence of sinkholes in the area to subsidence type. As many of these sinkholes go unreported or unnoticed, this phenomenon is not well understood in the immediate area. Using the field investigation tools available, potential solutions to this sinkhole have been developed as well as precautionary measures to reduce the risk exposure as large-scale infrastructure projects continue to be constructed throughout the area.
Sinkhole Repair under Highway Embankment
Casey, Thomas J. (author) / Wright, William B. (author) / Lockman, Michael (author) / Lin, Guoming (author)
GeoTrans 2004 ; 2004 ; Los Angeles, California, United States
2004-07-21
Conference paper
Electronic Resource
English
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