关于青藏铁路热棒路基稳定性的探讨

热棒路基是青藏铁路的重要组成部分,通过调整热棒的埋设位置、热棒的横向间距和纵向间距等来控制路基人为上限合理位置和控制路基协调变形。路基的强度和稳定性是保证青藏铁路正常运营的基本条件,只有使热棒得到合理布设,才可达到保护多年冻土、增强路基强度、保持冻土路基稳定的目的。文中通过分析不同形式的热棒试验路基的稳定性,总结提出了热棒的合理布设位置、纵向间距和横向间距。

Exploration on Stability of Heat Pipe Subgrade of Qinghai-Tibet Railway

Heat pipe subgrade is an important part for Qinghai-Tibet Railway.Rational upper limit position and coordinated deformation of subgrade can be controlled through adjustment of the burying arrangement,horizontal space and longitudinal space of heat pipes.Subgrade strength and stability is the basic condition to ensure normal operation of Qinghai-Tibet Railway.Only that heat pipes are buried rationally can we protect permafrost soil,strengthen subgrade strength and maintain frozen subgrade stability.This pape...