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2000年7月11日至13日,紫阳县境内连降暴雨,局部地区雨量达368毫米,山洪迸发,多处发生历史上罕见的泥石流害。安康分局管内襄渝线K441+376学堂沟桥一孔20米钢筋混凝土梁被汹涌的泥石流卷走,冲至桥址下游1500米处河滩,接触网及通信电缆同时被毁,致使襄渝铁路干线运输中断。
From July 11 to July 13, 2000, heavy rains continued in Ziyang County, with rainfalls reaching 368 millimeters in some areas. Flash floods broke out in many areas, causing rare landslides in history. Ankang branch Xiang Xiangyu line K441 +376 school ditch a hole 20 meters of reinforced concrete beam was raging mudslide swept away to 1500 meters downstream of the bridge site flood beach, catenary and communication cables were destroyed, resulting in Xiangyu-Chongqing Railway Route Transportation interrupted.