Safety analysis of embankment slope with seismic liquefaction problems

Seismic liquefaction problems of embankment slope related to two different subject fields(geotechnical engineering and engineering seismology),is a cross topic of slope engineering and sand liquefaction.Sand soil under embankment slope can be liquefied by earthquake,and can lead to liquefaction problems such as bearing capacity,settlement,lateral spreading,sand boils and global sliding.Using NCCER method(SPT),Mononobe-Okabe method,Koerner method and Fellenius method,the assessment index system including liquefaction safety factor,liquefaction lateral spreading safety factor,liquefaction sand boils safety factor and sliding safety factor,is put forward to evaluate the security of embankment slope with liquefaction problems.As a case study,the result shows the methods have wide applicability for embankment slope with liquefaction problems.