A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Improved Spring Load Restriction Guidelines Using Mechanistic Analysis
This project used research to develop more effective criteria for placement and removal of spring load restrictions (SLR). Researchers investigated a method that uses a thawing index equation based on air temperatures to predict thawing events. Results showed that adjusting the reference temperature improved the spring-thaw prediction for Minnesota. Researchers compared historical SLR posting dates from 1986 through 1998 to the dates predicted using this new technique and to falling weight deflectometer and in situ instrumentation readings from 15 flexible pavement test sections in Minnesota. According to results, there was typically a week or more delay from the time that SLR should have been placed until actual posting of restrictions, which caused damage that could have been prevented. Based on testing performed on pavement sections across the state, the typical period required for pavement base and subgrade layers to regain sufficient strength to support heavy truck loads was eight weeks.
Improved Spring Load Restriction Guidelines Using Mechanistic Analysis
This project used research to develop more effective criteria for placement and removal of spring load restrictions (SLR). Researchers investigated a method that uses a thawing index equation based on air temperatures to predict thawing events. Results showed that adjusting the reference temperature improved the spring-thaw prediction for Minnesota. Researchers compared historical SLR posting dates from 1986 through 1998 to the dates predicted using this new technique and to falling weight deflectometer and in situ instrumentation readings from 15 flexible pavement test sections in Minnesota. According to results, there was typically a week or more delay from the time that SLR should have been placed until actual posting of restrictions, which caused damage that could have been prevented. Based on testing performed on pavement sections across the state, the typical period required for pavement base and subgrade layers to regain sufficient strength to support heavy truck loads was eight weeks.
Improved Spring Load Restriction Guidelines Using Mechanistic Analysis
J. M. Ovik (author) / J. A. Siekmeier (author) / D. A. Van Deusen (author)
2000
96 pages
Report
No indication
English
Improved Spring Load Restriction Guidelines Using Mechanistic Analysis
| British Library Conference Proceedings | 1998
Comparison of Load Restriction Timings Determined Using FHwA Guidelines and Frost Tubes
| British Library Online Contents | 1997
Comparison of Load Restriction Timings Determined Using FHwA Guidelines and Frost Tubes
| British Library Online Contents | 1996
Comparison of Load Restriction Timings Determined Using FHwA Guidelines and Frost Tubes
| Online Contents | 1997