Research Article

Calculation and Control Methods for Equivalent Resilient Modulus of Subgrade Based on Nonuniform Distribution of Stress

Table 2

Results of the numerical value and PFWD-measured value of deflection at the wheelmark belt.

Mileage pile numberDeflection at the top of subgrade (0.01 mm)Deflection on a 10 cm thick layer (0.01 mm)Deflection on a 20 cm thick layer (0.01 mm)Deflection on a 30 cm thick layer (0.01 mm)
Measured valueNumerical valueMeasured valueNumerical valueMeasured valueNumerical valueMeasured valueNumerical value

K116 + 980164.3152.4141.4133.0132.0122.0123.2113.6
K117 + 000162.5143.2132.1123.6
K117 + 020161.8145.7131.7123.2
K117 + 040164.4138.6131.3123.4
K117 + 060163.1144.2131.9123.3
K117 + 080164.7147.1131.8123.5
K117 + 100164.3143.3131.7123.4
K117 + 120161.5143.8131.5123.6
K117 + 140163.9143.2132.1123.6
K117 + 160161.8143.6131.5123.0
K117 + 180161.6143.2132.1123.1
Mean of deflection163.1152.4143.4133.0131.8122.0123.4113.6
Error of deflection11.310.49.89.8
Equivalent Mr (MPa)64.1268.7273.5179.6380.4187.2886.2394.15
Error of the Mr (MPa)4.606.126.877.92