SHEN Li-wei, ZHUANG Hai-yang, CHEN Lei, et al. Prediction formula for dynamic accumulated deformation of Nanjing fine sand under train-induced vibration load[J]. 2014, 35(11).
SHEN Li-wei, ZHUANG Hai-yang, CHEN Lei, et al. Prediction formula for dynamic accumulated deformation of Nanjing fine sand under train-induced vibration load[J]. 2014, 35(11).DOI:
A cumulative deformation forecast model can predict long-term settlement of sand under the train-induced vibration load and has a great practical value in engineering practice. Based on cyclic triaxial experiment on the remolded samples of Nanjing fine sand using GDS (geotechnical digital systems) dynamic hollow cylinder torsional apparatus
the article analyzes sand characteristics of accumuted deformation
summarizes current studies on a cumulative deformation model formula at home and abroad
and compares the different formulae results with the experiment data; finally finds the most suitable model formula for Nanjing fine sand. Through comparison and analysis
the formula of logarithm model
of which the parameters are determined
has been found having a good application effect on a cumulated deformation prediction of Nanjing fine sand.