文章列举了中国西部山区地震对道路、桥梁和隧道造成直接破坏和地震次生灾害造成间接破坏的类型,分析了破坏的原因。山区地形陡峭,地质条件较差,地方经济水平有限,设计未考虑抗震或者抗震等级不足,施工技术水平相对欠缺是造成山区交通设施震害格外严重的原因。 This paper lists the types of direct damages caused by earthquakes in western China to roads, bridges and tunnels and indirect damages caused by earthquakes and analyzes the causes of the damage. Mountainous terrain is steep, geological conditions are poor, the local economy is limited, the design does not consider the seismic or seismic level is not enough, the relative lack of construction technology is the cause of serious damage to the transport infrastructure in mountainous areas.