1996年以前,川藏公路年断通时间超过6个月,而现在缩短到了7 d,基本实现长年通车。这一成绩的取得来自于养护部门寻求专家指导、加强科技装备、提高抢通效率,来自从被动抢通到主动养护的转变。川藏公路西藏境内的竹巴龙至东久桥段平均海拔4 000多m,塌方、泥石流、雪崩等自然灾害 Before 1996, the Sichuan-Tibet Highway broke off for more than 6 months, but now it has been shortened to 7 days, basically enabling long-term traffic. This achievement was obtained from the maintenance department seeking expert guidance, strengthening scientific and technological equipment, and improving the efficiency of the emergency operation, resulting from the change from passive to active maintenance. The average length of the Zhuba Long to East Jiuqiao sections of Sichuan-Tibet Highway in Tibet is more than 4,000 m, with natural disasters such as landslides, landslides and avalanches