Experimental study on ripped-rock revetment embankment in permafrost regions

Engineering damages of embankment in permafrost regions are mainly caused by thaw settlement of permafrost.Its stability is destroyed with longitudinal cracks of embankment caused by asymmetric settlement of permafrost.The temperature properties conditions of a traditional embankment and a ripped-rock embankment were contrasted by laboratory experiments.Results showed that the temperature distribution of the traditional embankment was asymmetrical;the asymmetrical status was changed after ripped-rock revetment was installed and the soil under the ripped-rock was cooled obviously;the ripped-rock revetment could cool embankment and adjust the temperature difference between the north-facing slope and the south-facing slope;the ripped-rock revetment was an available technique to protect embankment from thawing settlement and longitudinal cracks in permafrost regions.