【摘要】 青藏铁路建设三大技术难题的核心是冻土问题. 我国40 a的多年冻土研究为青藏铁路建设打下坚实的技术基础, 但是大规模的铁路建设实践给我们提出了大量深层次的冻土技术问题. 以青藏铁路建设为背景, 结合冻土区科研、设计、施工和建设管理工作的实践, 对青藏铁路建设的冻土技术问题进行了深层次的分析, 提出一些创新性见解, 这些都已经在青藏铁路冻土区工程建设中广泛应用, 卓有成效, 推动了青藏铁路冻土区工程建设的进展.更多还原

【Abstract】 Permafrost problems are the core of the three principal technical difficulties in the Qinghai-Tibet railway construction. The 40 years of permafrost research in China have built a solid technical base for the Qinghai-Tibet railway construction. But the large-scale railroad construction in permafrost regions brings forward much more and deeper requirements in relation to permafrost. In this article, the Qinghai-Tibet railway construction is taken as a background to deeply analyze the technical problems related with permafrost in the construction, in combination with the practice of scientific research, design, construction and construction supervising. Some innovation theories on the issues in the Qinghai-Tibet railway construction are put forward. These theories are applied widely in the construction in permafrost regions and proved to be highly effective. Thus, the Qinghai-Tibet railway construction in permafrost regions has improved greatly.更多还原