运营中的桥梁,支座翻浆陷槽是常见病,中小跨度钢梁尤为突出。在不适宜抬高梁跨或抬高量在3厘米以下时,通常采用的捣垫干硬性砂浆方法整治就比较困难,捣垫不实的则不太耐久。 国外六十年代曾报道过在一孔跨度76.2米(250英尺)旋转桥跨用环氧树脂修补桥梁垫座,固化4小时压强280公斤/厘米~2(4000磅/英 Operators in the bridge, bearing subsidence trap is a common disease, small and medium-span steel beams are particularly prominent. In unsuitable to raise the beam cross or raise the amount of 3 cm below, the commonly used tampon dry mortar mortar method is more difficult to rehabilitate, tamper pad is not too durable. In the 1960s, it was reported that in a span of 76.2 meters (250 feet), the span bridge was repaired with epoxy resin to repair the bridge pedestal and cured for 4 hours. The pressure was 280 kg / cm 2 (4000 lb / cm 2