A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Improved Correlation between Texas Cone Penetrometer Blow Count and Undrained Shear Strength of Soft Clays
The objective of this project was to develop an improved correlation between Texas Cone Penetrometer (TCP) blow count and undrained shear strength for soft, clay soils in the upper approximately 30 feet of the ground. Subsurface explorations were carried out by Tolunay-Wong Engineers, Inc. (TWEI) at six sites in the Texas Gulf Coast region where soft soils were expected to exist to obtain the data necessary to establish the improved correlation. A series of borings was made at each site with TCP tests, conventional ('Dutch') piezocone penetration tests, thin-walled tube sampling, and vane shear tests. Laboratory testing was subsequently performed at The University of Texas at Austin on the thin-walled tube samples obtained in the field. The results of these field and laboratory tests were used to develop average, lower- and upper-bound undrained shear strength profiles for each of the sites (Varathungarajan, 2008). The data were used to evaluate existing correlations between TCP blow count and undrained shear strength as well as to establish an improved correlation. The following improved correlation was proposed: s(sub u) = 300 + 60N where s(sub n) is undrained shear strength in lbs. per square foot (psf) and N is the TCP blow count. To evaluate the improved correlation, bearing capacity analyses were performed using the computer software UTEXAS4 (Wright, 1999) to compute factors of safety for undrained strength profiles developed using the improved correlation as well as for the undrained strength profiles developed by Varathungarajan (2008).
Improved Correlation between Texas Cone Penetrometer Blow Count and Undrained Shear Strength of Soft Clays
The objective of this project was to develop an improved correlation between Texas Cone Penetrometer (TCP) blow count and undrained shear strength for soft, clay soils in the upper approximately 30 feet of the ground. Subsurface explorations were carried out by Tolunay-Wong Engineers, Inc. (TWEI) at six sites in the Texas Gulf Coast region where soft soils were expected to exist to obtain the data necessary to establish the improved correlation. A series of borings was made at each site with TCP tests, conventional ('Dutch') piezocone penetration tests, thin-walled tube sampling, and vane shear tests. Laboratory testing was subsequently performed at The University of Texas at Austin on the thin-walled tube samples obtained in the field. The results of these field and laboratory tests were used to develop average, lower- and upper-bound undrained shear strength profiles for each of the sites (Varathungarajan, 2008). The data were used to evaluate existing correlations between TCP blow count and undrained shear strength as well as to establish an improved correlation. The following improved correlation was proposed: s(sub u) = 300 + 60N where s(sub n) is undrained shear strength in lbs. per square foot (psf) and N is the TCP blow count. To evaluate the improved correlation, bearing capacity analyses were performed using the computer software UTEXAS4 (Wright, 1999) to compute factors of safety for undrained strength profiles developed using the improved correlation as well as for the undrained strength profiles developed by Varathungarajan (2008).
Improved Correlation between Texas Cone Penetrometer Blow Count and Undrained Shear Strength of Soft Clays
S. M. Garfield (author) / D. A. Varathungarajan (author) / S. G. Wright (author)
2009
139 pages
Report
No indication
English
Soil & Rock Mechanics , Civil Engineering , Soil Sciences , Clay soils , Geotechnical engineering , Correlations , Recommendations , Penetration tests , Soft clay , Soil shear strength , Texas Cone Penetrometer (TCP) , Subsurface explorations , Improved correlation applications , Undrained shear strength
Undrained shear strength of soft clays from push cone penetration test
| British Library Online Contents | 2001
Texas Cone Penetrometer (TCP) Correlations for Strength Predictions of Low Compressibility Clays
| British Library Conference Proceedings | 2006
Technical notes - Undrained shear strength of soft clays from push cone penetration test
| Online Contents | 2001
Characterizing the Soft Clays in the Texas Gulf Coast Using the Texas Cone Penetrometer (TCP)
| British Library Conference Proceedings | 2007