SATURATION CURVE METHOD FOR FOUNDATION SETTLEMENT PREDICTION

Saturation curve model is proposed to satisfy the characteristics of S-style settlement process. Firstly, it is improved that the suggested model owns the same properties with S-style settlement process. The properties include boundedly convergent, monotonically increasing and inflection point existing. Meanwhile, influence of parameters is analyzed. Subsequently, parameter acquisition method and settlement prediction procedure are clarified. Finally, the rationality of given model is evaluated by several examples. Results show that the saturation curve model is of good applicability, precision and stability, and can be applied to settlement prediction during the whole construction period. Comparing with the hyperbola method, exponential curve method, Hoshino method and logistic curve method, the suggested settlement prediction model is more reliable and thus possesses a momentous engineering value and spreading significance.