摘要
修建于上世纪60～70年代的水闸,目前金属结构都有不同程度的锈蚀,闸门边导板尤为严重,锈蚀主要表现在导板整体厚度减薄,局部出现锈蚀坑,既造成闸门漏水,也增加了对水封的磨损。处理类似工程,原始办法是凿除门槽二期混凝土,更换新的边导板,缺点是施工面狭窄,工期长,工程量小,对整体工程运行影响大。本文介绍一种用新型高分子材料修补边导板锈蚀的方法,施工简单、快速,材料强度高,粘结力好,在保护边导板不再受腐蚀同时,表面光洁度高于钢板,既减少水封的磨损,还能将摩擦系数降低50%,降低闸门启门力。此项技术在水库闸门上实际应用,效果十分理想,供同行参考。
Corrosion of different degree exists on the gates which were built in the period of 1960-1980, especially serious on the side guide plate. The main form of corrosion is that the guide plate would get thinner, corrosion pit would appear at some parts of the plate. Corrosion would lead to leakage at the gate and increase the attrition of water seal. Traditional way of corrosion treatment was chiseling off the concrete of second-stage gate slot and change a new side guide plate. This is of the disadvantage that narrow construction area, long construction period and big effect to whole project. The paper introduced a new repair way with the applica- tion of a new polymer material, it＇s of the advantage that simple and fast construction, high strength of the material, big binding power. It would protect side guide plate from corrosion and because it is smoother than steel, it would decrease the attrition of water seal, reduce the fiction factor to 50% and low the lifting power. This technology was applied to reservoir gate and of good effect, worthy reference.
出处
《大坝与安全》
2007年第6期62-63,共2页
Dam & Safety
关键词
弧型闸门
高分子材料
边导板
金属结构锈蚀修补
radial gate
polymer material
side guide plate
repair of rusted metal structure
