介绍了青藏铁路多年冻土区桩基的施工技术及严寒大温差条件下的混凝土施工方案；讨论了耐久混凝土的应用及质量控制，耐久混凝土非结构性开裂情况、开裂原因及裂缝防治措施。

This paper aims to give a compendious introduction of some key technologies in constructing Qinghai-Tibet railway project,which includes ： bored pile building technology in perennially frozen earth area, concrete construction schemes under frosty conditions with big difference in temperature, applications and quality control of perdurable concrete, perdurable concrete's cracking cases, cracking reasons and some preventive measures for it.