For investigation of the failure mechanism of the HDPE geomembrane on the slope of a newly constructed landfill, which is related to a series of small boreholes during the construction, tensile tests and geotechnical centrifuge model tests are carried out on the intact and damaged HDPE geomembranes as well as their simulants.

Four cases of 50 g dynamic geotechnical centrifuge model test,dry sine input-wave model 1,saturation sine input-wave model 2,saturation model 3 of level 1 scenario input-wave.

Based on the geotechnical centrifuge model test, the problem was investigated by the finite element program FLIP(Finite element analysis of Liquefaction Program)developed with effective stress method.

Geotechnical centrifuge model tests of the retaining wall with deep mixing piles;

In order to dispose the foundation of the high liquid limit soil,a centrifugal model test has been chosen,which uses the centrifugal power brought by centrifugal machine to improve the bulk power of the model and to form the man made gravity.