KONG Gang-qiang, ZHANG Chi. Field test and numerical simulation of deformation characteristics of embankment on soft ground under different filling speeds[J]. 2014, 35(S2).
KONG Gang-qiang, ZHANG Chi. Field test and numerical simulation of deformation characteristics of embankment on soft ground under different filling speeds[J]. 2014, 35(S2).DOI:
settlement and stability are most important problems to be considered. Based on Xiaonianwei construction on Nanjing Yangtze Dike upgrading project
field monitoring and tests on embankment construction process upon soft ground are carried out. The monitoring projects contain surface settlements
layered settlements
lateral displacements of soil
soil pressure
pore water pressure and the groundwater table
etc. Based on Plaxis software
numerical simulation model on embankment construction process upon soft ground is built. The accuracy and reliability of numerical simulation model is verified by comparative analysis with field monitoring results. Then
the settlement influenced by key indicators of construction control factors
such as filling rate and filling intermittent time
is discussed and analyzed. The results show that the whole settlement increases with single filling thickness increasing; while the influence becomes little when single filling thickness less than 1 m. Hence
the single filling thickness with 0.5-1.0 m is suggested. The research results can provide a reference to construction quality control upon soft ground in similar places.