一、概况 宝天线是解放前修建的铁路。宝鸡到天水段地质条件极为复杂,加之该铁路修建时设计标准低,施工质量差,留下大量病害隐患。解放后虽经连年大修和技术改造,情况已有很大好转,但尚存在不少病害工点,对铁路运营安全的威胁极大。 1978年7月12日晚20点至21点多,伯阳、社 First, an overview of the treasure antenna is built before the liberation of the railway. Geological conditions Baoji to Tianshui extremely complex, combined with the design of the railway construction of low standards, poor construction quality, leaving a large number of disease hazards. Although the situation has been greatly improved after years of overhaul and technological innovation after the liberation, there are still many disease work stations, which threaten the safety of railway operations greatly. July 20, 1978 20:00 to 21:00, Bo Yang, clubs