US2014255095A1PendingUtilityA1

Construction of earthen fills

37
Individually held — no corporate assignee on recordPriority: Sep 18, 2006Filed: May 19, 2014Published: Sep 11, 2014
Est. expirySep 18, 2026(~0.1 yrs left)· nominal 20-yr term from priority
Inventors:Philip A. Tritico
E02D 3/02
37
PatentIndex Score
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Claims

Abstract

A method for construction of earthen fills that comprises use of actual, cumulative field compaction energy generated by soil compactors as a function of rolling resistance with soil densification, to determine the asymptotic energy-density approach range.

Claims

exact text as granted — not AI-modified
We claim: 
     
         1 . A method for construction of earthen fills that comprises use of actual, cumulative field compaction energy generated by soil compactors as a function of rolling resistance with soil densification, to determine an asymptotic energy-density approach range and associated asymptotic compaction performance. 
     
     
         2 . The method of  claim 1  that ties the asymptotic compaction performance to any value selected from the group consisting of moisture-density relations, optimum moisture-density, percentages of maximum dry-density compaction, soil properties, compacted soil properties, compactor performance, compactor-soil interface, and end point of lift compaction. 
     
     
         3 . The method of  claim 1  wherein any drive train step is measured to establish change in rimpull rolling resistance. 
     
     
         4 . The method of  claim 1  wherein rimpull rolling resistance is measured by compactor power performance. 
     
     
         5 . The method of  claim 1  wherein compaction is deemed complete when the change in rolling resistance falls below a value considered insignificant. 
     
     
         6 . The method of  claim 5  wherein compaction is deemed complete when the measured change in rolling resistance is less than the measured error for determining rolling resistance. 
     
     
         7 . The method of  claim 1  where change in a component of engine power is measured and transmitted to a computation means to track variation of engine power for each pass over a given area to be compacted, and the compactor operator receives an instruction when the desired magnitude of the change in engine power is achieved. 
     
     
         8 . The method of  claim 1  wherein a real time computation of change in rimpull rolling resistance is used to identify an asymptotic energy-density approach range. 
     
     
         9 . The method of  claim 1  wherein drive power data from the compactor is transmitted to a receiving station and the transmitted drive power data is used to compute an asymptotic energy density approach range. 
     
     
         10 . A method for construction of earthen fills that comprises determining field specific rolling resistance at the asymptotic energy-density approach and correlating the determined rolling resistance to engineering properties of the compacted lift. 
     
     
         11 . The method of  claim 10  that correlates the asymptotic compaction performance to one or more values selected from the group consisting of moisture-density relations, optimum moisture-density, percentages of maximum dry-density compaction, soil properties, compactor performance, compactor-soil interface, and the end point of lift compaction. 
     
     
         12 . The method of  claim 10  wherein compactor engine horsepower is measured to establish change in rolling resistance. 
     
     
         13 . The method of  claim 10  wherein rimpull rolling resistance is measured by compactor power performance. 
     
     
         14 . The method of  claim 10  wherein compaction is deemed complete when the change in rolling resistance falls below a value considered insignificant. 
     
     
         15 . The method of  claim 14  wherein compaction is deemed complete when the measured change in rolling resistance is less than the measured error for determining rolling resistance. 
     
     
         16 . The method of  claim 10  where change in engine power is measured and transmitted to a computation means to track variation of engine power for each pass over a given area to be compacted, and the compactor operator receives an instruction when the desired magnitude of the change in engine power is achieved. 
     
     
         17 . The method of  claim 10  wherein a real time computation of change in rolling resistance is used to identify the asymptotic energy-density approach range. 
     
     
         18 . The method of  claim 10  wherein engine drive train power data from the compactor is transmitted to a receiving station and the transmitted engine drive power data is used to compute the asymptotic energy density approach range. 
     
     
         19 . A method for compaction of earthen fills that comprises determining field measured, site specific rimpull rolling resistance changes until the magnitude of change in rimpull rolling resistance indicates the asymptotic energy-density approach range has been reached for the area being compacted. 
     
     
         20 . The method of  claim 19  wherein changes in rimpull rolling resistance are measured by changes in compactor power performance.

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