Table 6 Cumulative differential settlement prediction model of monitoring point 5.

From: Long-term monitoring and analysis of the longitudinal differential settlement of an expressway bridge–subgrade transition section in a loess area

Prediction model

Parameters of the equation

R2

SSE

MPAE (%)

Hyperbolic model

\({a}_{1}\) = 6.12, \({b}_{1}\) = 85.12, \({c}_{1}\) = 11.25, \({d}_{1}\) = 0.86

0.944

0.009

7.1

Exponential curve model

\({a}_{2}\) = 5.34, \({b}_{2}\) = 2.37, \({c}_{2}\) = 0.037

0.944

0.006

6.7

Combined forecasting model

\({n}_{1}\) = 0.59, \({n}_{2}\) = 0.48

0.967

0.005

2.2

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