A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The Wisconsin Department of Transportation (WisDOT) spends approximately 10 percent of its improvement project budget on embankment construction each year. A critical aspect of embankment construction is stability. It is needed to provide an acceptable foundation for pavement construction and will contribute to the long-term performance of the pavement structure. To achieve this, WisDOT developed specifications for embankment density and has developed specifications to limit the thickness of embankment lifts placed during construction. The current specifications limit lift thickness to 0.20 meters (8 inches) for most soil conditions. However, if granular soils are used and density measurements are being made, a 0.30-meter (12-inch) lift thickness may be allowed. The 8-inch lift limit is by far the most common application on departmental projects. The 0.20-meter (8-inch) lift limit has been the standard for WisDOT construction for many years. This limit was based on practical field experience with contractor methods and equipment. It has been accepted as a reasonable soil thickness that would contribute to adequate embankment compaction without excessive testing and inspection by WisDOT staff.
The Wisconsin Department of Transportation (WisDOT) spends approximately 10 percent of its improvement project budget on embankment construction each year. A critical aspect of embankment construction is stability. It is needed to provide an acceptable foundation for pavement construction and will contribute to the long-term performance of the pavement structure. To achieve this, WisDOT developed specifications for embankment density and has developed specifications to limit the thickness of embankment lifts placed during construction. The current specifications limit lift thickness to 0.20 meters (8 inches) for most soil conditions. However, if granular soils are used and density measurements are being made, a 0.30-meter (12-inch) lift thickness may be allowed. The 8-inch lift limit is by far the most common application on departmental projects. The 0.20-meter (8-inch) lift limit has been the standard for WisDOT construction for many years. This limit was based on practical field experience with contractor methods and equipment. It has been accepted as a reasonable soil thickness that would contribute to adequate embankment compaction without excessive testing and inspection by WisDOT staff.
Effective Depth of Soil Compaction in Relation to Applied Compactive Energy
2015
236 pages
Report
No indication
English
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