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都汶公路是汶川地震的抗震救灾“生命线”。在汶川地震及次生地质灾害的共同作用下,都汶公路路基、路面、桥梁、隧道遭受不同程度的损坏,交通中断,严重阻碍了抗震救灾和灾后恢复重建。通过对都汶公路的现场调查,分析了都汶公路沿线次生地质灾害的活动特征及分布规律,并根据现状可以推断,震后都汶公路沿线次生地质灾害将进入活跃期,活跃期将持续10～20年,特别是震后的5年之内将会非常严重。针对次生地质灾害现状,提出了相应的减灾对策。
Du Wen Road is Wenchuan earthquake relief “lifeline ”. Under the combined effect of the Wenchuan earthquake and secondary geological disasters, the subways, pavements, bridges and tunnels of Du-Wen Highway suffered different degrees of damage and traffic interruption, which seriously hindered the earthquake relief and post-disaster reconstruction. Based on the field investigation of the Du-Wen highway, the characteristics and distribution of secondary geological disasters along the Du-Wen highway are analyzed. According to the status quo, it can be inferred that the secondary geological disasters along the Du-Wen highway will enter an active phase after the earthquake. For 10 to 20 years, especially within 5 years after the earthquake will be very serious. In view of the status quo of secondary geological disasters, the corresponding mitigation measures are put forward.