A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Postmortem Investigation of the Kansas Test Track. Volume I
The Kansas Test Track (KTT) was comprised of nine different track systems, which were built on a designed embankment. The KTT subgrade experienced premature failure in service, and KTT operations were terminated in June 1975 after six months of operation. A postmortem investigation of KTT was carried out in 1975 and 1976. Volumes I and II document the structure, ballast, and embankment studies carried out by the U. S. Army Engineer Waterways Experiment Station in the postmortem investigation. Results presented in Volume I provide needed insight into track system behavior and are particularly descriptive of ballast and embankment performance. A rationale is presented to explain the mechanism of failure in the subgrade, and attention is drawn to the structure-ballast-subgrade interaction processes which govern track system performance. Inadequate drainage of the top of the KTT embankment led to moisture content increases in the top of subgrade from 1971 to 1974, when traffic commenced. The embankment clay was moderately to highly plastic, and moisture-induced loss of strength in the top few inches of subgrade was the principal cause of failure.
Postmortem Investigation of the Kansas Test Track. Volume I
The Kansas Test Track (KTT) was comprised of nine different track systems, which were built on a designed embankment. The KTT subgrade experienced premature failure in service, and KTT operations were terminated in June 1975 after six months of operation. A postmortem investigation of KTT was carried out in 1975 and 1976. Volumes I and II document the structure, ballast, and embankment studies carried out by the U. S. Army Engineer Waterways Experiment Station in the postmortem investigation. Results presented in Volume I provide needed insight into track system behavior and are particularly descriptive of ballast and embankment performance. A rationale is presented to explain the mechanism of failure in the subgrade, and attention is drawn to the structure-ballast-subgrade interaction processes which govern track system performance. Inadequate drainage of the top of the KTT embankment led to moisture content increases in the top of subgrade from 1971 to 1974, when traffic commenced. The embankment clay was moderately to highly plastic, and moisture-induced loss of strength in the top few inches of subgrade was the principal cause of failure.
Postmortem Investigation of the Kansas Test Track. Volume I
S. S. Cooper (author) / A. J. Bush (author) / H. C. Greer (author) / M. A. Vispi (author) / M. M. Carlson (author)
1979
146 pages
Report
No indication
English
Track economies in Kansas City
Engineering Index Backfile | 1928
Rigid track experience in Kansas City
| Engineering Index Backfile | 1924