A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Large-Scale Plate Load Testing of Ground Improved Using Displacement Grout Columns
The site of a warehouse expansion in Tampa, Florida was underlain by sand overlying limestone. The performance criteria required ground improvement to densify the upper sand in order to maintain a maximum total settlement of 25 mm (1 inch) for an applied subgrade pressure of 110 kPa (2300 psf). Considering the objectives, displacement grout columns were selected as the ground improvement technique. The efficacy of the displacement grout columns for densifying the upper sands was verified by a pre-production test program that included cone penetration tests and a large-scale plate load test. The cone penetration test results showed a significant increase in tip resistance after ground improvement. The plate load test results showed that improved ground performed consistent with the design requirements. It is concluded that the design methodology proposed by the authors provides a very good estimate of the behavior of ground improved by displacement grout columns beneath shallow foundations.
Large-Scale Plate Load Testing of Ground Improved Using Displacement Grout Columns
The site of a warehouse expansion in Tampa, Florida was underlain by sand overlying limestone. The performance criteria required ground improvement to densify the upper sand in order to maintain a maximum total settlement of 25 mm (1 inch) for an applied subgrade pressure of 110 kPa (2300 psf). Considering the objectives, displacement grout columns were selected as the ground improvement technique. The efficacy of the displacement grout columns for densifying the upper sands was verified by a pre-production test program that included cone penetration tests and a large-scale plate load test. The cone penetration test results showed a significant increase in tip resistance after ground improvement. The plate load test results showed that improved ground performed consistent with the design requirements. It is concluded that the design methodology proposed by the authors provides a very good estimate of the behavior of ground improved by displacement grout columns beneath shallow foundations.
Large-Scale Plate Load Testing of Ground Improved Using Displacement Grout Columns
Siegel, Timothy C. (author) / NeSmith, Willie M. (author)
GeoFlorida 2010 ; 2010 ; Orlando, Florida, United States
GeoFlorida 2010 ; 2398-2405
2010-02-15
Conference paper
Electronic Resource
English
Large-Scale Plate Load Testing of Ground Improved Using Displacement Grout Columns
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