Evaluation of cone penetration testing (CPT) for use with transportation projects.
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2011-04-01
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NTL Classification:NTL-HIGHWAY/ROAD TRANSPORTATION-Soils and Geology ; NTL-REFERENCES AND DIRECTORIES-Statistics
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Abstract:Cone Penetration Testing (CPT) has many advantages as a means for subsurface investigation. CPT consists of pushing a steel ; cone into the ground and recording the penetration resistance using sensors. Pore pressure, shear wave velocity and other ; measurements can also be taken using CPT. Several states have incorporated CPT into their subsurface investigation ; programs and the Ohio Department of Transportation (ODOT) has funded this project as a first step toward routine use of ; CPT in Ohio. CPT soundings were completed at 20 sites throughout Ohio and the data were correlated with corresponding ; data obtained from standard penetration and laboratory testing. Clear correlation trends for the 17 different ODOT soil ; types were not obtained and a larger database is needed to improve the correlations. Guidelines for CPT machine operation ; and data analysis are presented. Existing correlations for engineering parameters are also discussed. CPT is expected to ; become a useful tool for ODOT subsurface exploration work and provide considerable cost savings over the long term.
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Main Document Checksum:urn:sha-512:0ec3a24782a25c1ab8f08a26d2b115fe2d3c214d20a85cce14494c75e7a5db4c2ababa9a139cf028413715bdb347d755fef2eb4dbac37ec23a3766f5e7e6b537