中文摘要：

为了研究季节性冻土地区的防冻胀措施及其效果，在G109国道青海省橡皮山段铺设了垫层不同的2个断面，即参照断面和试验断面，并对温度、含水量及路面变形数据进行了分析。结果表明：试验断面下的最大季节冻结深度小于1m，小于天然地面下的季节冻结深度；在冷季期间，两试验段在冻结深度范围内的含水量较低，低于起始冻胀含水量；参照断面的变形比较稳定，路面有微小上升，而试验断面路面没有上升现象；在季节性冻土地区采用碎石路面垫层加隔水土工膜能有效减少季节冻深，并减小道路冻胀变形。

英文摘要：

In order to study the anti-frost heaving measures in the seasonally frozen soil area, two test cross-sections were set up on G109 in Qinghai Rubber Hill section and one of them was the reference section and another was the experimental section. The ground temperature, water content and deformation of road were analyzed. The results show that the maximum seasonally frozen depth in experimental section is less than 1 m, which is less than that of the natural ground. In the cold seasons both seetions have less water content within the seasonally frozen depth and the water content is less than the initial water content in frost heaving. The deformation of reference section is steady and the road rises a little while the road of experimental section doesn＇t rise. Macadam bed course and water proof geomembrane can better decrease the frozen depth and prevent frost heaving deformation on the road.