Investigation of embankment with temperature-controlled ventilation along the Qinghai–Tibet Railway

The temperature-controlled ventilated embankment (TCVE) is an improved engineering measure developed based on the duct-ventilated embankment (DVE). The improved cooling effect of the TCVE is a result of enhanced heat exchange through controlling air convection in the ventilated ducts of the DVE. The field observational data from a TCVE testing section at Beiluhe, about midway in the Qinghai–Tibet Railway permafrost zone, indicates that...