一、概况宝成铁路略阳至广元段,线路全长132.5公里,傍嘉陵江而下,地形陡峻,地质复杂,由于1981年久雨、暴雨,因而导致危岩落石,覆盖坍塌、滑坡、泥流漫道及堵孔等较大病害工点计103个,其中病害较为严重需设明、棚洞及改线设置隧道处理者计54座(处)总延长10666.36m,为本次水害整治总长20.48524km的52.1％;按其病害性质及相应整治措施分 First, an overview Baocheng railway Lanyang to Guangyuan section, a total length of 132.5 kilometers line, along the Jialing River, the steep terrain, geological complex, due to 1981 rain, heavy rains, which led to rock fall, cover collapse, landslide, mud Manchu and plugging holes and other major diseases 103 points, of which more serious diseases need to be set out, shed tunnels and rerouted set of tunnel treatment of 54 (total extension of 10666.36m, the total length of 20.48524km 52.1%; according to the nature of the disease and the corresponding remediation measures