热管技术及其在多年冻土工程中的应用研究

热管技术是国外寒区工程中广泛使用的一项主动冷却地基土体的技术,青藏铁路修建之前,国内很少对此技术进行研究。本文针对应用于青藏铁路多年冻土工程中的热管类型,通过国内外的研究资料,综述了与青藏铁路热管应用效果相关的理论研究与工程实践成果。由于青藏铁路沿线独有的气候和冻土条件,文中的理论与实践方法与参数虽然不能简单照搬应用于青藏铁路的设计,但是可以对青藏铁路多年冻土区热管的设计与应用起到借鉴的作用。

Thermosyphon technology and its application in permafrost

Thremosyphon is a widely used technology applied to the engineering projects in permafrost regions at home and abroad. Before the construction of the Qinghai-Tibet railway, there was little study on this technology. This study is based on the type of the thermosyphon used in the Qinghai-Tibet railway. For the weather and permafrost conditions of Qinghai-Tibet plautea are different from the conditions of foreign countries, it is not proper to directly apply their theory and productions to the design of thermosyphon embankments in Qinghai-Tibet railway. This paper will be useful for the design and application of the thermosyphon used in permafrost regions of Qinghai-Tibet railway.