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中文摘要：
研究目的：柴达尔-木里铁路（柴木铁路）全长142.04 km,沿线高温不稳定和极不稳定多年冻土广泛分布,冻土含冰量较高,同时由于柴木铁路呈东南-西北走向,冻土路基又面临着阴阳坡问题。柴木铁路53 km路段采用了片石通风路基,为保证路基的稳定性,有必要对片石通风措施的工程效果进行分析研究。研究结论：2007年以来的监测结果表明,在高温冻土区,片石通风路基和片石护道仅能有效冷却阴坡侧路基和坡脚;在低温基本稳定多年冻土区,片石通风措施不仅可以有效冷却路基本底,对阴阳坡现象也具有一定的抑制作用。
英文摘要：
Research purposes：The total length of Chaidaer-Muli Railway is 142.04km and lots of the unstable and extreme unstable permafrost regions under high temperature are scattered along the railway with the rich ice content of the frozen soil.The frozen soil subgrade faces the situations of the back slope and front slope because the Chaidaer-Muli Railway is from the southeast to northwest.The rubble convection subgrade was adopted in the area of 53km.To ensure the stability of the railway subgrade,it is necessary to analyze and research the cooling effect of the measures for the rubble subgrade convection. Research conclusions：The monitored data obtained since 2007 show in the warm permafrost region,only the shadow parts of the rubble convection subgrade and the base of the slope can be cooled by adopting the rubble convection subgrade and convection berm and in the low-temperature stable permafrost region,application of rubble convection not only cools the subgrade base,but also plays a certain role in restraining the back slope and front slope.
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