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DMD = Dynaflect Maximum Deflection (Numerical Value of Sensor No. 1)
SCI = Surface Curvature Index (Numerical Difference of Sensor No. 1 and
No. 2)
BCI = Base Curvature Index (Numerical Difference of Sensor No. 4 and
No. 5).
a) Basin Parameters
(b)
DMD
SCI
BCI
CONDITION OF PAVEMENT STRUCTURE
GT 1.25
GT 0.48
GT 0.11
Pavement and Subgrade Weak
LT 0.11
Subgrade Strong, Pavement Weak
LT 0.48
GT 0.11
Subgrade Weak, Pavement Marginal
LT 0.11
DMD High, Structure Ok
LT 1.25
GT 0.48
GT 0.11
Structure Marginal, DMD Ok
LT 0.11
Pavement Weak, DMD Ok
LT 0.48
GT 0.11
Subgrade Weak, DMD Ok
LT 0.11
Pavement and Subgrade Strong
b) Criteria
Figure 2.7 Empirical Interpretation of Dynaflect Deflection Basin (90)