高原冻土铁塔基础施工关键技术Plateau permafrost tower foundation construction research and application of key technologiesABSTRACT：The 400 kV DC Golmud-Lhasa transmission line project is located in Qinghai and Tibet，along most of the elevation of 4500 5000 m, through the permafrost regions longest transmission line project is the worlds permafrost construction key technologies of the projectthe main problem facing Articles for Qinghai-Tibet Plateau permafrost region transmission line foundation con
