Abstract：Research purposes: The construction in permafrost area is one of difficult problems over the world. In cause of construction of bridge in permafrost area, the author made exploration on how to work out rational plan of construction organization, how to select model of drilling machinery and how to connect the construction procedures in order to provide construction experience to similar construction.
Research results: The relative construction technique was applied in construction of pile foundation and cap of pile trestle of Kaixinling Bridge 1# on Qinghai-Tibet Railway and solved the difficult problem of drilling on the pile foundation of bridge in permafrost area.
Research conclusions: In construction of pile foundation of bridge in permafrost area, it was better to use big power rotary drilling machine for rapid cavity making, but the following things should be noted: the process of concrete grouting had not to be interrupted, full preparation would be done, the connection of procedures would be short after excavation (drilling) would be quick, the time of soil exposure would be short after excavation(drilling) and the measure against sunshine would be taken if necessary, the speed of grouting concrete would be as quick as possible and the measure for maintaining concrete would be reliable.
罗育桂. 青藏铁路开心岭1#特大桥桩基、承台施工技术[J]. 铁道工程学报, 2006, 23(6): 43-46.
LUO Yu-gui. Construction Technique for Pile Foundation and Cap of Pile Trestle of Kaixinling Bridge 1# on Qinghai-Tibet Railway Line. 铁道工程学报, 2006, 23(6): 43-46.
2006, Vol. 23 
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