The invention is a composite of interdependent engineering methods for
earthen fill engineering and construction. The invention includes the
development, utilization, and correlation of actual, cumulative field
compaction energies, unique to and based on field combination-specific
variables of any combination but including all of the following: soil
type, compactor type, lift thickness, moisture content, and soil amendment
type and mix. Interdependent development of the field combination-specific
compaction energies includes the following combination-specific steps:
novel rolling resistance energy versus dry density field trials, novel
generation and direct curvalinear utilization of parabolic rolling
resistance energy curves with roller passes, novel determination of
asymptotic energy-density approach ranges, novel selection and application
of percentage density sectors on novel moisture-density curves, and novel
projection of said percentage density sectors onto corresponding roller
compaction energy curves for selection and use of design compaction energy
levels. Interdependent correlation of the combination-specific energy
values is made with all physical and engineering properties of all soil
types and amended soil types in the compacted state that corresponds to
and is the product of the specific combination of field variables. In
addition to interdependent utilization of the energy and corresponding
engineering properties in method development, the energy and corresponding
engineering properties are tabulated within cross-matrices of all field
combinations for use in engineering design, engineering correction,
laboratory compaction testing, and construction controls. The cross-matrix
values are related in a manner that permits determining values for
additional field combinations that have not been tested on a full scale.
