Consolidation coefficient calculation based on consolidation rate attenuation method

摘要

This paper proposes a new partial-analytical consolidation coefficient calculation method as consolidation rate attenuation method based on the 1st-order series solution to one-dimensional Terzaghi theory. According to the consolidation rate attenuation curves, consolidation coefficient can be obtained by the linear attenuation part fitting. Least square principal is used to get fitting parameters of the extracted linear attenuation data by computer. This new developed method has rigorous formula which avoids mapping human factors, the effect of initial settlement and secondary consolidation. By the evaluation comparison of different methods, this new method is accurate, which also means the test process will be speeded up.