supported by the National Key Basic Research Program of China (973 Program) (No.2012CB026106);the National Natural Science Foundation of China (Grant No. 41171059);the Fund of the State Key Laboratory of Frozen Soil Engineering (No. SKLFSE-ZY-16)
In the construction of the Qinghai-Tibet Power Transmission Line (QTPTL), cast-in-place piles (CIPPs) are widely applied in areas with unfavorable geological conditions. The thermal regime around piles in permafro...