A roadbed cooling approach for the construction of Qinghai–Tibet Railway

Over one half of the permafrost along the Qinghai–Tibet Railway is “warm” and approximately 40% ice-rich. Under global warming, the construction of the Qinghai–Tibet Railway needs to consider climate changes over the next 50–100 years. Recent estimates indicate that the air temperature on the plateau will increase by 2.2–2.6 °C...