The calculations show that the frost-heaving zone causes damage directly to an embankment, different sensitivity of frost-heaving zone will bring different damage, and the freezing zone under a pavement is a sensitive frost heaving zone.

• 结果表明：冻胀带的存在是引起路基病害的直接原因，不同冻胀带范围将引起路基产生不同类型及不同规模的破坏，位于路面以下的冻胀带属于敏感冻胀带范围。