A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Pedological Soil - Highway Distress Study Hand County - South Dakota
The intent of the study was to relate pavement performance to soil mapping units used by the Soil Conservation Service. Ten separate construction projects on three major highway and two county roads in Hand County were examined. Fifty five mapping units were included in the ten projects. Generally, a limited correlation of performance to soil mapping units was found within projects. The age of the projects ranged from 6 to 30 years and the uncertain amount of maintenance confounded the performance ratings. The variety of surface textures strongly affected road roughness readings. Sufficiency ratings and maintenance cost records proved to be of no value in measuring performance. Engineering soil classifications proved to be of little value in rating the undisturbed soil materials. However, surface and subsurface drainage did appear to be very influential in the way the subgrade soil behaved. A drainage index was devised for rating environmental conditions and the researchers believe it will prove to be useful. The researchers believe that the measured pavement thickness (including material placed during maintenance) is a reasonable means for comparing thickness designs used in the past and evaluating present and future designs. Further evaluation of these two ratings is planned for selected sites in Brookings County. (BPR Abstract)
Pedological Soil - Highway Distress Study Hand County - South Dakota
The intent of the study was to relate pavement performance to soil mapping units used by the Soil Conservation Service. Ten separate construction projects on three major highway and two county roads in Hand County were examined. Fifty five mapping units were included in the ten projects. Generally, a limited correlation of performance to soil mapping units was found within projects. The age of the projects ranged from 6 to 30 years and the uncertain amount of maintenance confounded the performance ratings. The variety of surface textures strongly affected road roughness readings. Sufficiency ratings and maintenance cost records proved to be of no value in measuring performance. Engineering soil classifications proved to be of little value in rating the undisturbed soil materials. However, surface and subsurface drainage did appear to be very influential in the way the subgrade soil behaved. A drainage index was devised for rating environmental conditions and the researchers believe it will prove to be useful. The researchers believe that the measured pavement thickness (including material placed during maintenance) is a reasonable means for comparing thickness designs used in the past and evaluating present and future designs. Further evaluation of these two ratings is planned for selected sites in Brookings County. (BPR Abstract)
Pedological Soil - Highway Distress Study Hand County - South Dakota
R. A. Crawford (author) / D. W. Anderson (author)
1967
55 pages
Report
No indication
English
Civil Engineering , Geology & Geophysics , Roads , Soils , Mapping , Construction , Drainage , Pavements , Soil mechanics , Performance(Engineering) , Surface properties , Classification , Environment , Thickness , Design , Correlation techniques , South Dakota , Statistical analysis , Clay , Sand , Gravel , Permeability , Pedological soil , Drainage index
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