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随着铁路运量的不断增长,既有铁路线上的桥梁需要逐步进行技术改造,以提高设备能力。为了满足当地农田灌溉的要求,有些桥需要扩大桥孔,以增加过水面积。这类工程,如果采用修筑便线便桥的施工方案,需要较多设备和投资;并且要较多地占用田地或拆迁房屋,对农业生产不利。这次浦阳江桥扩孔工程,我们在学习兄弟单位经验的基础上,采用了在原桥下施工的方案,始终保持行车和施工的安全,取得了一定的成绩。
With the continuous growth of rail traffic, bridges on existing railways need to undergo technological transformation step by step to improve equipment capabilities. In order to meet the irrigation requirements of the local farmland, some bridges need to be expanded to increase the water area. Such projects, if used to construct a mezzanine bridge, require more equipment and investment; and more land occupation or demolition of houses will be detrimental to agricultural production. The Puyang River Bridge reaming project, we learn from the experience of brothers unit, using the program under the original bridge construction, and always maintain the driving safety and construction, and achieved some success.