在各种因素的影响下,桥梁经过一定年限的运营后需要进行维修加固处理,针时既有线上钢筋混凝土轻型墩横向振幅超限、墩身与墩基偏心等病害,分析病害产生的原因,依据现场情况及施工单位的施工条件,采取切实可行的方法。结合本人在桥墩基础加固工程施工中的工程实践,介绍在桥粱维修加固中应用的几种施工技术。 Under the influence of various factors, the bridges need to be repaired and reinforced after a certain number of years of operation. When the needles exist both the lateral amplitude of the light-weight concrete pier in the line, the eccentricity of the pier body and the pier foundation, the causes of the disease are analyzed, According to the site conditions and the construction unit’s construction conditions, adopt a practical method. Based on the engineering practice in the foundation strengthening of bridge piers, several construction techniques applied in the repair and reinforcement of bridge beams are introduced.